Processes for making lactose utilizing pre-classification techniques and pharmaceutical formulations formed therefrom

Information

  • Patent Grant
  • 9365905
  • Patent Number
    9,365,905
  • Date Filed
    Monday, February 6, 2006
    18 years ago
  • Date Issued
    Tuesday, June 14, 2016
    8 years ago
Abstract
A process for forming lactose suitable for use in a pharmaceutical formulation comprises providing a plurality of lactose particles containing no more than 10% w/w of lactose particles having a volume average particle size of about 70 microns or less; milling the plurality of lactose particles to yield a plurality of milled lactose particles with an average particle size, (D50), ranging from about 50 microns to about 100 microns; and classifying the plurality of milled lactose particles into at least two fractions comprising a fine fraction and a coarse fraction wherein the fine fraction has an average particle size, (D50), ranging from about 3 microns to about 50 microns, and the coarse fraction has an average particle size, (D50), ranging from about 40 microns to about 250 microns.
Description
FIELD OF THE INVENTION

The invention generally relates to processes for making lactose and pharmaceutical formulations formed therefrom.


BACKGROUND OF THE INVENTION

In the field of inhalation therapy, it is generally desirable to employ therapeutic molecules having a particle size (i.e., diameter) in the range of 1 to 10 μm. Carrier molecules or excipients, such as lactose, for inhaled therapeutic preparations also include significantly larger diameter particles (e.g., 100 to 150 μm) that typically do not penetrate into the upper respiratory tract to the same degree as the active ingredient. In general, it is preferable to use a smaller particle size for the lactose or a lactose blend having a defined ratio of coarse and fine lactose.


The lactose particle size and distribution will also, in many instances, significantly influence pharmaceutical and biological properties, such as, for example, bioavailablity. For example, it is well known that coarse lactose in crystalline form has a fair flow rate and good physical stability whereas fine lactose powder, such as that produced by conventional fine grinding or milling, generally lacks good flow properties. Lactose prepared by conventional spray drying either lacks desired flow properties or contains too many large sized lactose crystals.


It is well known that one particular drawback associated with conventional means of producing pharmaceutical grade lactose relates to undesirable variations in particle size, morphology and distribution. Such production methods are particularly problematic in that they often lead to excessive and undesirable variations in the fine particle mass (“FPMass”) of pharmaceutical formulations employing such lactose. FPMass is the weight of medicament within a given dose that reaches the desired size airways to be effective. For example, a desired size may be defined as approximately 1 micron to 10 microns as measured by laser scattering techniques.


Lactose morphology is believed to be another important parameter to control, and it is believed that the degree of surface roughness can influence the interaction between the lactose particle and excipient and as such is now often measured as part of the lactose selection criteria. See e.g., Pharmaceutical Technology Europe April 2004, page 23.


It is possible that two lactose particles may be measured as having the same particle size, but if one is smooth, eg un-milled crystalline lactose, and the other is a rougher-surfaced milled crystal, that these could associate to a different extent with the active and thus impact upon either the initial FPMass performance or the through life stability performance of the product.


SUMMARY OF THE INVENTION

The present invention attempts to address the above problems associated with conventional processes of producing lactose, and provides a process of producing lactose possessing reduced levels of variation for both particle size distribution and particle morphology.


In one aspect, the invention provides a process for forming lactose suitable for use in a pharmaceutical formulation and having a predetermined particle size distribution. The process comprises providing a plurality of lactose particles containing no more than 10% w/w of lactose particles having a volume average particle size of about 70 microns or less; milling the plurality of lactose particles to yield a plurality of milled lactose particles with an average particle size, (D50), ranging from about 50 microns to about 100 microns; and then classifying the plurality of milled lactose particles into at least two fractions comprising a fine fraction and a coarse fraction wherein the fine fraction has an average particle size, (D50), ranging from about 3 microns to about 50 microns, and the coarse fraction has an average particle size, (D50), ranging from about 40 microns to about 250 microns. In one embodiment, appropriate amounts of coarse and fine fractions may be combined with at least one medicament to form a pharmaceutical formulation.


These and other aspects are encompassed by the present invention.





BRIEF DESCRIPTION OF THE DRAWINGS


FIG. 1 illustrates a particle size profile for lactose formed in accordance with Example 1.



FIG. 2 illustrates a particle size profile for lactose formed in accordance with Example 2.



FIG. 3 illustrates a particle size profile for lactose formed in accordance with Example 3.



FIG. 4 illustrates a comparison of a particle size profile for lactose formed in accordance with Example 2 with two conventional production batches.



FIG. 5 illustrates the particles size distribution of the initial crystalline A feed lactose used in Examples 1, 2 and 3. This shows the varying amounts of lactose in the less than 60 micron region.



FIG. 6 illustrates the particles size distribution of the crystalline A feed lactose after it has been classified to remove the majority of the smaller crystalline lactose particles.



FIG. 7 illustrates the correlation between D10 and the Span of Feed Lactose Batches.



FIG. 8 illustrates the particle size distribution for pre-classified lactose, coarse fraction.





DETAILED DESCRIPTION OF THE INVENTION

The invention will now be described with respect to the embodiments set forth herein. It should be appreciated that these embodiments are set forth to illustrate the invention, and that the invention is not limited to these embodiments.


All publications, patents, and patent applications cited herein, whether supra or infra, are hereby incorporated herein by reference in their entirety to the same extent as if each individual publication, patent, or patent application was specifically and individually indicated to be incorporated by reference.


It must be noted that, as used in the specification and appended claims, the singular forms “a”, “an”, “one” and “the” may include plural references unless the content clearly dictates otherwise.


As used herein, the term “D50” is defined as the size in microns above or below which 50 percent of the particles reside on a volume basis.


The process for forming lactose in accordance with the present invention may encompass various embodiments. For example, in one embodiment, the step of milling the plurality of lactose particles to yield a plurality of lactose particles may encompass obtaining those particles with an average particle size (D50) ranging from about 50, 55, 60, 65, 70 or 75 microns to about 70, 75, 80, 85, 90, 95 or 100 microns. In one embodiment, for example, the step of classifying the plurality of milled lactose particles into at least two fractions may result in a fine fraction having an average particle size (D50) ranging from about 3, 10, 15, 20, 25, 30 or 35 microns to about 30, 35, 40, 45 or 50 microns as well as a coarse fraction having an average particle size (D50) ranging from about 40, 75, 100, 125 or 150 microns to about 100, 125, 150, 175, 200, 225 or 250 microns, as measured by Malvern particle sizing.


In accordance with the present invention, the term “lactose” as used herein is to be broadly construed. As an example, lactose is intended to encompass physical, crystalline, amorphous and polymorphic forms of lactose, including, but not limited to, the stereoisomers α-lactose monohydrate and β-anhydrous lactose, as well as α-anhydrous lactose. Combinations of the above may be used.


Lactose (i.e., milk sugar) is preferably obtained from cheese whey, which can be manufactured in different forms depending on the process employed. As used herein, the term “particle” is to be broadly interpreted to encompass those of various shapes, sizes, and/or textures which can include those that may have varying degrees of irregularities, disuniformities, etc. or which may possess regular and/or uniform properties.


The plurality of lactose particles used in the process of the present invention may be acquired in various manners. In one embodiment, the plurality of lactose particles is present in the form of crystalline or unmilled lactose. In one embodiment, the initial step of providing lactose particles containing no more than 10% w/w of lactose particles having a volume average particle size of about 70 microns or less, comprises obtaining the plurality of lactose particles from a crystallization process. One example of a suitable crystallization process that may be employed is set forth in copending U.S. Application entitled “Process for Crystallizing Lactose Particles for Use in Pharmaceutical Formulations”, Ser. No. 60/651,754 filed concurrently herewith. It should be understood that other processes may also be employed.


In another embodiment, the initial step of providing a plurality of lactose particles containing no more than 10% w/w of lactose particles having a volume average particle size of about 70 microns or less, comprises obtaining the plurality of lactose particles by sieving a source of lactose to produce the plurality of lactose particles. Typical examples of commercially available sieving apparatus are made available by Russell Finex of Charlotte, N.C. and Alpine Sieves of Augsburg, Germany.


In another embodiment, the plurality of lactose particles containing no more than 10% w/w of lactose particles having a volume average particle size of about 70 microns or less may be obtained by classifying a source of lactose into two fractions comprising the plurality of lactose particles containing no more than 10% w/w of lactose particles having a volume average particle size of about 70 microns or less and a remaining fine fraction. One example of a commercially preferred classifier made commercially available by Hosakawa of Cheshire, United Kingdom. The remaining fine fraction of lactose is lactose that is unmilled or crystalline. Optionally, prior to classifying, the particles may be subjected to sieving.



FIG. 5 illustrates the full particle size profile of the initial feed batches before the smaller crystals have been removed by classification. FIG. 6 illustrates the full particle size profile after the smaller crystals have been removed via a classification process. This results in a much more uniform feed material being presented to the mill.


The Span is often a parameter used to describe the narrowness/broadness of a distribution of particles. The Span is given by the following formulation:

(D90−D10)/D50=Span


The term “D90” is defined as the size in microns below which 90 percent of the particles reside on a volume basis.


The term “D10” is defined as the size in microns below which 10 percent of the particles reside on a volume basis.


Although not intending to be bound by theory, for particles with similar D50's the smaller the Span, the tighter are the distribution of particles. In general, feed lactose batches with small Span values would be better input materials to the mill as this would indicate a narrower particle size distribution. It can be seen from FIG. 7 that the higher the D10 values are for typical crystalline A Feed lactose batches, the smaller the Span values. The following Tables 1-2 illustrate that tighter particle size distributions are obtained after the classification of the crystalline A Feed lactose, and hence produce a preferred input into the mill









TABLE 1







Malvern Data Prior to classification












D10
D50
D90
Span

















Example 1 Fine feed
57
123
208
1.23



Example 1 coarse feed
86
176
284
1.13



Example 2 Fine feed
53
114
208
1.36



Example 2 coarse feed
84
162
270
1.15



Example 3 Fine feed
53
114
207
1.35



Example 3 coarse feed
81
161
274
1.20

















TABLE 2







Malvern Data after classification












D10
D50
D90
Span

















Example 1 Fine feed
88
141
219
0.93



Example 1 coarse feed
116
186
284
0.90



Example 2 Fine feed
79
140
236
1.12



Example 2 coarse feed
107
171
263
0.91



Example 3 Fine feed
81
139
230
1.07



Example 3 coarse feed
104
171
270
0.97










The step of milling the plurality of lactose particles to yield a plurality of milled lactose particles may be carried out using known techniques. As an example, in one embodiment, milling may be performed using an impact mill (e.g., air classifier mill, (ACM)) whereby size reduction of pharmaceutical grade lactose is a combination of milling and classification. In one embodiment, milling is conducted using a standard air classifier mill fitted with mill rotor and grinding pins, classifier wheel and grinding track. One example of a commercially preferred mill is the MikroPul ACM made commercially available by Hosakawa.


The process described herein is suitable for providing lactose for use in a wide range of inhalation applications, encompassing those that require very fine lactose to those requiring much coarser lactose. Such that in one embodiment the coarse fraction alone may be suitable for pharmaceutical applications and at the other extreme the fine fraction alone may be suitable for pharmaceutical applications. Required FPMass performance from inhalation devices, including, in one embodiment and without limitation Advair, can be targeted by the combination of appropriate amounts of the coarse and fine fractions. This can cover the complete range from 100 percent coarse fraction+0 percent fine fraction to 100 percent fine fraction+0 percent coarse fraction. The exact proportions that are required will depend on the particle size profile of each of the coarse and fine fractions themselves.


As an example, the above combining step may be achieved by blending, although other procedures may be employed. A typical blender used would be of the orbital screw type such as the Vrieco-Nauta Conical Blender made commercially available by Hosakawa.


In another aspect, the invention may encompass pharmaceutical formulations formed according to various processes set forth herein.


Medicaments, for the purposes of the invention, include a variety of pharmaceutically active ingredients, such as, for example, those which are useful in inhalation therapy. In general, the term “medicament” is to be broadly construed and include, without limitation, actives, drugs and bioactive agents, as well as biopharmaceuticals. Various embodiments may include medicament present in micronized form. Appropriate medicaments may thus be selected from, for example, analgesics, (e.g., codeine, dihydromorphine, ergotamine, fentanyl or morphine); anginal preparations, (e.g., diltiazem); antiallergics, e.g., cromoglicate, ketotifen or nedocromil); antiinfectives (e.g., cephalosporins, penicillins, streptomycin, sulphonamides, tetracyclines and pentamidine); antihistamines, (e.g., methapyrilene); anti-inflammatories, (e.g., beclometasone dipropionate, fluticasone propionate, flunisolide, budesonide, rofleponide, mometasone furoate, ciclesonide, triamcinolone acetonide, 6α, 9α-difluoro-11β-hydroxy-16α-methyl-3-oxo-17α-propionyloxy-androsta-1,4-diene-17β-carbothioic acid S-(2-oxo-tetrahydro-furan-3-yl) ester), (6α, 11β, 16α, 17β)-6,9-difluoro-17-{[(fluoromethyl)thio]carbonyl}-11-hydroxy-16-methyl-3-oxoandrosta-1,4-dien-17-yl 2-furoate, and (6α, 11β, 16α, 17α)-6,9-difluoro-17-{[(fluoromethyl)thio]carbonyl}-11-hydroxy-16-methyl-3-oxoandrosta-1,4-dien-17-yl 4-methyl-1,3-thiazole-5-carboxylate); antitussives, (e.g., noscapine); bronchodilators, e.g., albuterol (e.g. as sulphate), salmeterol (e.g. as xinafoate), ephedrine, adrenaline, fenoterol (e.g as hydrobromide), formoterol (e.g., as fumarate), isoprenaline, metaproterenol, phenylephrine, phenylpropanolamine, pirbuterol (e.g., as acetate), reproterol (e.g., as hydrochloride), rimiterol, terbutaline (e.g., as sulphate), isoetharine, tulobuterol,4-hydroxy-7-[2-[2-[[3-(2-(henylethoxy)propyl]sulfonyl]ethyl]-amino]ethyl-2(3H)-benzothiazolone), 3-(4-{[6-({(2R)-2-hydroxy-2-[4-hydroxy-3-(hydroxymethyl)phenyl]ethyl}amino)hexyl]oxy}butyl)benzenesulfonamide, 3-(3-{[7-({(2R)-2-hydroxy-2-[4-hydroxy-3-(hydroxymethyl)phenyl]ethyl}amino)heptyl]oxy}propyl)benzenesulfonamide, 4-{(1R)-2-[(6-{2-[(2,6-dichlorobenzyl)oxy]ethoxy}hexyl)amino]-1-hydroxyethyl}-2-(hydroxymethyl)phenol, 2-hydroxy-5-((1R)-1-hydroxy-2-{[2-(4-{[(2R)-2-hydroxy-2-phenylethyl]amino}phenyl)ethyl]amino}ethyl)phenylformamide, 8-hydroxy-5-{(1R)-1-hydroxy-2-[(2-{4-[(6-methoxy-1,1′-biphenyl-3-yl)amino]phenyl}ethyl)amino]ethyl}quinolin-2(1H)-one, 5-[(R)-2-(2-{4-[4-(2-amino-2-methyl-propoxy)-phenylamino]-phenyl}-ethylamino)-1-hydroxy-ethyl]-8-hydroxy-1H-quinolin-2-one; diuretics, (e.g., amiloride, anticholinergics, e.g., ipratropium (e.g., as bromide), tiotropium, atropine or oxitropium); hormones, (e.g., cortisone, hydrocortisone or prednisolone); xanthines, (e.g., aminophylline, choline theophyllinate, lysine theophyllinate or theophylline); therapeutic proteins and peptides, (e.g., insulin). It will be clear to a person skilled in the art that, where appropriate, the medicaments may be used in the form of salts, (e.g., as alkali metal or amine salts or as acid addition salts) or as esters (e.g., lower alkyl esters) or as solvates (e.g., hydrates) to optimise the activity and/or stability of the medicament. It will be further clear to a person skilled in the art that where appropriate, the medicaments may be used in the form of a pure isomer, for example, R-salbutamol or RR-formoterol.


Particular medicaments for administration using pharmaceutical formulations in accordance with the invention include anti-allergics, bronchodilators, beta agonists (e.g., long-acting beta agonists), and anti-inflammatory steroids of use in the treatment of respiratory conditions as defined herein by inhalation therapy, for example cromoglicate (e.g. as the sodium salt), salbutamol (e.g. as the free base or the sulphate salt), salmeterol (e.g. as the xinafoate salt), bitolterol, formoterol (e.g. as the fumarate salt), terbutaline (e.g. as the sulphate salt), reproterol (e.g. as the hydrochloride salt), a beclometasone ester (e.g. the dipropionate), a fluticasone ester (e.g. the propionate), a mometasone ester (e.g., the furoate), budesonide, dexamethasone, flunisolide, triamcinolone, tripredane, (22R)-6α,9α-difluoro-11β,21-dihydroxy-16α, 17α-propylmethylenedioxy-4-pregnen-3,20-dione. Medicaments useful in erectile dysfunction treatment (e.g., PDE-V inhibitors such as vardenafil hydrochloride, along with alprostadil and sildenafil citrate) may also be employed. It should be understood that the medicaments that may be used in conjunction with the inhaler are not limited to those described herein.


Salmeterol, especially salmeterol xinafoate, salbutamol, fluticasone propionate, beclomethasone dipropionate and physiologically acceptable salts and solvates thereof may be employed.


It will be appreciated by those skilled in the art that the formulations according to the invention may, if desired, contain a combination of two or more medicaments. Formulations containing two active ingredients are known for the treatment and/or prophylaxis of respiratory disorders such as asthma and COPD, and may include, for example, formoterol (e.g. as the fumarate) and budesonide, salmeterol (e.g. as the xinafoate salt) and fluticasone (e.g. as the propionate ester), salbutamol (e.g. as free base or sulphate salt) and beclometasone (as the dipropionate ester).


In one embodiment, a particular combination that may be employed is a combination of a beta agonist (e.g., a long-acting beta agonist) and an anti-inflammatory steroid. One embodiment encompasses a combination of fluticasone propionate and salmeterol, or a salt thereof (particularly the xinafoate salt). The ratio of salmeterol to fluticasone propionate in the formulations according to the present invention is preferably within the range 4:1 to 1:20. The two drugs may be administered in various manners, simultaneously, sequentially, or separately, in the same or different ratios. In various embodiments, each metered dose or actuation of the inhaler will typically contain from 25 μg to 100 μg of salmeterol and from 25 μg to 500 μg of fluticasone propionate. The pharmaceutical formulation may be administered as a formulation according to various occurrences per day. In one embodiment, the pharmaceutical formulation is administered twice daily.


Embodiments of specific medicament combinations that may be used in various pharmaceutical formulations are as follows:


1) fluticasone propionate 100 μg/salmeterol xinafoate 72.5 μg (equivalent to salmeterol base 50 μg)


2) fluticasone propionate 250 μg/salmeterol xinafoate 72.5 μg (equivalent to salmeterol base 50 μg)


3) fluticasone propionate 500 μg/salmeterol xinafoate 72.5 μg (equivalent to salmeterol base 50 μg)


In various embodiments, the pharmaceutical formulations may be present in the form of various inhalable formulations. In one embodiment, the pharmaceutical formulation is present in the form of a dry powder formulation, the formulation of such may be carried out according to known techniques. The invention also encompasses inhalation devices including inhalable formulations. Dry powder formulations for topical delivery to the lung by inhalation may, for example, be presented in capsules and cartridges of for example gelatine, or blisters of for example laminated aluminum foil, for use in an inhaler or insufflator. Powder blend formulations generally contain a powder mix for inhalation of the compound of the invention and a suitable powder base which includes lactose and, optionally, at least one additional excipient (e.g., carrier, diluent, etc.). In various embodiments, each capsule or cartridge may generally contain between 20 μg and 10 mg of the at least one medicament. In one embodiment, the formulation may be formed into particles comprising at least one medicament, and excipient material(s), such as by co-precipitation or coating. When employed as a dry powder, packaging of the formulation may be suitable for unit dose or multi-dose delivery. In the case of multi-dose delivery, the formulation can be pre-metered (e.g., as in Diskus®, see GB 2242134/U.S. Pat. Nos. 6,032,666, 5,860,419, 5,873,360, 5,590,645, 6,378,519 and 6,536,427 or Diskhaler, see GB 2178965, 2129691 and 2169265, U.S. Pat. Nos. 4,778,054, 4,811,731, 5,035,237) or metered in use (e.g. as in Turbuhaler, see EP 69715, or in the devices described in U.S. Pat. No. 6,321,747). An example of a unit-dose device is Rotahaler (see GB 2064336). In one embodiment, the Diskus® inhalation device comprises an elongate strip formed from a base sheet having a plurality of recesses spaced along its length and a lid sheet hermetically but peelably sealed thereto to define a plurality of containers, each container having therein an inhalable formulation containing the at least one medicament, the lactose, optionally with other excipients. Preferably, the strip is sufficiently flexible to be wound into a roll. The lid sheet and base sheet will preferably have leading end portions which are not sealed to one another and at least one of the leading end portions is constructed to be attached to a winding means. Also, preferably the hermetic seal between the base and lid sheets extends over their whole width. The lid sheet may preferably be peeled from the base sheet in a longitudinal direction from a first end of the base sheet.


In one embodiment, the formulations may be employed in or as suspensions or as aerosols delivered from pressurised packs, with the use of a suitable propellant, e.g. dichlorodifluoromethane, trichlorofluoromethane, dichlorotetrafluoroethane, 1,1,1,2,3,3,3-heptafluoropropane, 1,1,1,2-tetrafluoroethane, carbon dioxide or other suitable gas. Such formulations may be delivered via a pressurized inhaler, e.g., a Metered Dose Inhaler (MDI). Exemplary MDIs typically include canisters suitable for delivering the pharmaceutical formulations. Canisters generally comprise a container capable of withstanding the vapour pressure of the propellant used such as a plastic or plastic-coated glass bottle or preferably a metal can, for example an aluminum can which may optionally be anodised, lacquer-coated and/or plastic-coated, which container is closed with a metering valve. Aluminum cans which have their inner surfaces coated with a fluorocarbon polymer are particularly preferred. Such polymers can be made of multiples of the following monomeric units: tetrafluoroethylene (PTFE), fluorinated ethylene propylene (FEP), perfluoroalkoxyalkane (PFA), ethylene tetrafluoroethylene (EFTE), vinyldienefluoride (PVDF), and chlorinated ethylene tetrafluoroethylene. Embodiments of coatings used on all or part of the internal surfaces of an MDI are set forth in U.S. Pat. Nos. 6,143,277; 6,511,653; 6,253,762; 6,532,955; and 6,546,928.


MDIs may also include metering valves are designed to deliver a metered amount of the formulation per actuation and incorporate a gasket to prevent leakage of propellant through the valve. The gasket may comprise any suitable elastomeric material such as for example low density polyethylene, chlorobutyl, black and white butadiene-acrylonitrile rubbers, butyl rubber and neoprene. Suitable valves are commercially available from manufacturers well known in the aerosol industry, for example, from Valois, France (e.g. DF10, DF30, DF60), Bespak plc, UK (e.g. BK300, BK356) and 3M-Neotechnic Ltd, UK (e.g. Spraymiser™). Embodiments of metering valves are set forth in U.S. Pat. Nos. 6,170,717; 6,315,173; and 6,318,603.


In various embodiments, the MDIs may also be used in conjunction with other structures such as, without limitation, overwrap packages for storing and containing the MDIs, including those described in U.S. Pat. No. 6,390,291, as well as dose counter units such as, but not limited to, those described in U.S. Pat. Nos. 6,360,739 and 6,431,168.


In addition to the above, the pharmaceutical formulations can be employed in capsules, sachets, tablet buccals, lozenges, papers, or other container. Moreover, the formulations can be in the form of tablets, pills, powders, elixirs, suspensions, emulsions, solutions, syrups, capsules (such as, for example, soft and hard gelatin capsules), suppositories, sterile injectable solutions, and sterile packaged powders. Excipients, carriers, diluents, and the like may be optionally employed.


The pharmaceutical formulation formed by the processes of the invention may be used in the treatment of a number of respiratory disorders, which encompasses, for example, maintenance treatment and/or prophylaxis. Such respiratory conditions include, without limitation, diseases and conditions associated with reversible airways obstruction such as asthma, chronic obstructive pulmonary diseases (COPD) (e.g. chronic and wheezy bronchitis, emphysema), respiratory tract infection and upper respiratory tract disease (e.g. rhinitis, such as allergic and seasonal rhinitis). Such treatment is carried out by delivering medicament to a mammal. Accordingly, and in view of the above, in another aspect, the invention provides a method for the treatment of a respiratory disorder comprising the step of administering a pharmaceutically effective amount of a pharmaceutical formulation to a mammal such as, for example, a human. For the purposes of the invention, the term “pharmaceutically effective amount” is to be broadly interpreted and encompass the treatment of the disorder. In one embodiment, the administration is carried out via an inhalation device described herein. In one embodiment, the administration is carried out by nasal or oral inhalation.


The invention offers potential advantages relative to the prior art. As one example, the invention allows for improved control of particle size distribution of the lactose formed by this process, i.e., a more consistent particle size distribution and/or a more consistent surface morphology of the lactose is capable of being achieved from lactose feeds independent of the particle size distribution of the lactose feed. In particular, the lactose formed by the process of the invention is capable of exhibiting a more continuous particle size distribution, i.e., very little or no gap in the particle size distribution in contrast to the distribution set forth in X. M. Zeng et al., International Journal of Pharmaceutics, 176 (1998) 99-110.


The present invention is highly advantageous. In one embodiment, for example, the classification cut-point can be chosen so that the coarse fraction is suitable for use in a pharmaceutical formulation without fine fraction. In one embodiment, at least a portion of the fine fraction (ranging from 0, 5, 10, 15, 20, 25, 30, 35, 40, or 45 to 55, 60, 65, 70, 75, 80, 85, 90, 95 or 100 percent by weight) may be combined (e.g., blended) with at least a portion of the coarse fraction (ranging from 0, 5, 10, 15, 20, 25, 30, 35, 40, or 45 to 55, 60, 65, 70, 75, 80, 85, 90, 95 or 100 percent by weight) such that the resulting lactose composition is suitable for use in a pharmaceutical formulation. In one embodiment, the fine fraction may be used in a pharmaceutical formulation without any coarse fraction. With respect to the above embodiments, it is preferred that lactose be employed with sufficient fine material so as to be capable of meeting the FPMass requirements, typically 20 percent to 30 percent (weight basis) of the medicament content achieved by utilising lactose that comprises 2 percent to 10 percent (volume basis) particles less than 4.5 microns as measured by Sympatec.


In view of the above, in one embodiment, the invention may further comprise combining at least one medicament with a lactose composition to form a pharmaceutical formulation. The lactose composition in such an embodiment may comprise from 0, 5, 10, 15, 20, 25, 30, 35, 40, or 45 to 55, 60, 65, 70, 75, 80, 85, 90, 95 or 100 percent by weight of the coarse fraction and from 0, 5, 10, 15, 20, 25, 30, 35, 40, or 45 to 55, 60, 65, 70, 75, 80, 85, 90, 95 or 100 percent by weight of the fine fraction. Moreover, in one embodiment, the invention may further comprise combining at least a portion of the coarse fraction with at least a portion of the fine fraction to form a lactose composition; and thereafter combining the lactose composition with at least one medicament to form a pharmaceutical formulation. Alternatively, in one embodiment, the invention may encompass simultaneously combining: (i) from 0, 5, 10, 15, 20, 25, 30, 35, 40, or 45 to 55, 60, 65, 70, 75, 80, 85, 90, 95 or 100 percent by weight of coarse fraction, (ii) from 0, 5, 10, 15, 20, 25, 30, 35, 40, or 45 to 55, 60, 65, 70, 75, 80, 85, 90, 95 or 100 percent by weight of fine fraction, and (iii) at least one medicament to form a pharmaceutical formulation.


As the large majority of the small particles have been produced by milling, they all typically possess a similar surface roughness. By comparison, if lactose batches are introduced into the mill that contain particles less than a volume average size of 70 microns, then these particles will essentially pass through the mill without the need to be reduced in size by the milling action. As a consequence, these particles will still exhibit a smoother crystalline surface, compared to milled lactose particles, which in turn may lead to different interactions with the active molecules.


Thus by substantially reducing or eliminating these small crystalline particles from the feed to the mill, not only can the milled particle size be controlled, but the particles will also exhibit a very much more uniform surface morphology.


Malvern Methodology


Malvern measurements as set forth herein are determined according to the following:


Equipment

    • Malvern Mastersizer, laser diffraction particle size analyser fitted with the 300 mm focal length lens.
    • MS15 stainless steel flow-through measurement cell, 2.2 mm path width (Malvern).
    • MSX1 small volume presentation unit (Malvern).
    • Viton tubing: 4.8 mm internal diameter, 1.6 mm wall thickness (Watson-Marlow).
    • Viton or Neoprene tubing: approximately 15 mm internal diameter, 2 mm wall thickness (Watson-Marlow).
    • Positive pressure or vacuum filtration equipment with 0.22 μm maximum aperture membrane filters type GV (Sartorius/Millipore).
    • Analytical balance (Mettler, electronic) minimum weighing capacity of 30 grams with an accuracy to 4 decimal places, Spatulas for sample transfer.


Solvent: HPLC grade iso-octane


Test Method


This section outlines the procedure for the measurement of one batch of lactose. For each batch, it is preferred that three representative samples be measured in duplicate.


Preparation of the Liquid Dispersant.

    • For the preparation of 2 liters of liquid dispersant, dissolve with ultrasonication 0.7 g of lecithin NF in 10 cm3 of iso-octane to produce a dispersant concentrate.
    • Filter sufficient iso-octane using the vacuum filtration unit and a 0.22 μm filter disc. During this filtration add the dispersant concentrate to the solvent so that it too is filtered and mixed in. Store in a pre-cleaned Winchester solvent container (Liquid dispersant).
    • The filtered liquid dispersant should be stored in a solvent cupboard when not in use.
    • Liquid dispersant may be recycled by refiltering after analysis as from above and making up to volume with iso-octane


Preparation of the Malvern Mastersizer

    • Set up the following measurement parameters on the Malvern Mastersizer for the test sample:


















Model type:
Model independent



Presentation code:
0503



Focal length:
300 mm



Beam active length:
 2.2 mm



Gain:
Low



Trigger:
Internal



Kill data low:
0



Kill data high:
0



Shape correction:
Off



Density:
1.00



Autorun number:
0



Obscuration range:
Between 0.18 and 0.22



Sweeps for measure:
1000



Sweeps for inspect:
50












    • Set up the MSX1 small volume presentation unit ensuring that the total length Viton tubing from the presentation unit to the flow through cell does not exceed 30 cm. Attach one end of suitably sized (int. dia. approx. 15 mm) Viton or Neoprene tubing (waste tubing) to the waste drain and place the other end into a red non-chlorinated waste solvent container placed on the floor.

    • Flush the presentation unit and the cell through with the liquid dispersant and drain.

    • Refill with the iso-octane/lecithin dispersant and align the laser beam using a stirrer speed of 11 o'clock (1500±100 rpm). The laser intensity should be in the “good” region.

    • Once the laser is aligned, it is preferred that the stirrer speed should not be altered.





Sample Measurement

    • Add the powder sample to a presentation unit using a spatula to obtain an obscuration value within the range 0.18 to 0.22.
    • Allow 60 seconds to allow the dispersion to equilibrate and the obscuration value to stabilise.
    • Measure the particle size distribution. Repeat measurement as deemed appropriate.


Sympatec Methodology


The following teachings may be employed to arrive at the Sympatec measurements described herein:


Instrumental Parameters













Parameter
Typical







Measuring Range
R5: 0.5/4.5→875 μm


Trigger Conditions
10 s, 100 ms, 0.2% ch12


Time Base
100 ms


Reference measurement
10 s, Single


Focus Prior to first measurement
No


Start
0 s after channel 12 ≧ 0.2%


Valid
Always


Stop
5 s after channel 12 ≦ 0.2%


Or After
30 s real time


Dispersing Device
RODOS


VIBRI Chute
Standard chute


Gap Width
2 mm


Pressure
Nominal 1.5 Bar (1.3-1.7 Bar



acceptable)


Depression
Maximise (see LSOP/WARE/092/03



section 5.2.9).


Feed Rate
85%


Sample Weight
2 g ± 1 g









The Sympatec HELOS is provided with the RODOS dry powder dispersion unit and the VIBRI vibratory feeder.


In these measurements, software is used in conjunction with the measurement equipment.


For the RODOS dispersing system, the primary pressure of the injector should be adjusted using the pressure control dial. The primary pressure should be within the range 1.3-1.7 bar although a pressure of 1.5 bar should be aimed for at each run. The injector depression should be optimised using the adjustment ring. The direction in which the adjuster ring is turned (clockwise or anti clockwise), has no adverse effect on the depression obtained. On instruments with a RODOS/M dispersing system, the primary pressure may be adjusted using a software algorithm. The injector depression should be maximised by clicking the “Auto-adjust depr” button. The instrument should not be used if the injector depression is less than 55 mbar at 1.3-1.7 bar.


Analysis of Sample


Homogenize the sample by turning the pot slowly end-over-end at least ten times in one direction and ten times in the other direction prior to analysis. This is only necessary the first time a sample is taken from a pot.


Transfer 2±1 g of the lactose sample into the funnel attached to the VIBRI using a Kartell “spoon/flat” general purpose spatula (Fisher catalogue no SMJ-410-091M, volume approximately 1.8 cm3).


A heaped spoonful of lactose powder has been demonstrated to present a sample in the range 2.0-3.0 g.


The invention will now be described with respect to the following examples. It should be appreciated that the examples are set forth for illustrative purposes only, and do not limit the scope of the invention as defined by the claims.


EXAMPLE 1
Lactose Processing

Two batches of coarse crystalline lactose A were selected. These differed from each other inasmuch that they exhibited different D50's. Batch 1 had a D50 of between 110-130 microns and Batch 2 had a D50 of between 160-180 microns, as measured by Malvern laser particle sizing techniques.


Each of these batches were then separated into a fine and coarse fraction using an air classifier. The cut point was nominally about 80 microns.


In each case the fine fraction was discarded and the coarse fractions were milled in an air classifier mill (ACM) so that the D50 of the milled product was nominally 60-70 microns.


The milled lactose batches were then classified at a cut point of nominally 25 microns to form a fine fraction and a coarse fraction.


Suitable proportions of the coarse and fine fraction from each milled batch were blended together so that the percentage of lactose <4.5 microns was:


(i) 6.7%+/−0.3%; ex batch 1


(ii) 5.0%+/−0.3%; ex batch 11


(iii) 3.3%+/−0.3%; ex batch 1


(iv) 6.7%+1-0.3%; ex batch 2


(v) 5.0%+/−0.3%; ex batch 2


(vi) 3.3%+/−0.3%; ex batch 2


The above teachings are exemplified by the following protocol:


The purpose of the following development protocol is to manufacture lactose batches having the same overall particle size distribution from different feed crystalline lactose A batches.


The feed, milling, classifying, and blending of lactose may be carried out using the following:

    • 1) A pilot scale blender capable of blending 100 kg of material (“pilot scale blender”)
    • 2) A full scale classifier, e.g., a classifier that may be employed as a stand alone device suitable for full scale production (“full scale classifier”)


The following experimental method may be employed:


1. Select 2 batches of crystalline lactose A that are different from each other in their percentage of lactose that is less than 80 microns. Crystalline Lactose A is employed as feed lactose and is made commercially available by Borculo Domo Ingredients of Borculo, Netherlands.


These are defined as batch 1, which has a D50 of between 120-130 microns and batch 2 that has a D50 of 170-180 microns. Batch 1 should have the percentage less than 15 microns greater than 3%, whereas batch 2 should have the percentage of lactose less than 15 microns as less than 1.5%.


2. Using the full scale classifier, separate each full batch as cleanly as possible into two fractions, one being <80 microns and the other being >80 microns. The same settings should be used for both batches and it is desirable that no changes are to be made to the settings during the classification.


3. Mill only the fraction of lactose that is >80 microns from both batches 1 and 2. Set the mill at nominally the same as used for commercial supply however, reduce the throughput rate of the lactose so that the milling and built in classifier can act more efficiently. Once set, discard any test millings and then mill each batch of lactose >80 microns at the same settings.


4. Using the full scale classifier, separate each milled batch as cleanly as possible into two fractions, one being nominally <25 microns and the other being nominally >25 microns. The same settings should be used for both batches and it is desirable no changes are to be made to the settings during the classification.


5. Recombination by blending: Using appropriate aliquots from each batch of the classified fractions, recombine the lactose in the pilot scale blender to give:


a—100 kgs of product which has the percentage of lactose <4.5 microns at 6.7%+/−0.3%—From feed batch 1


b—100 kgs of product which has the percentage of lactose <4.5 microns at 5.0%+/−0.3%—From feed batch 1


c—100 kgs of product which has the percentage of lactose <4.5 microns at 3.3%+/−0.3%—From feed batch 1


This may be repeated using lactose from the second feed batch. (d) should be as similar to (a) as possible.


d—100 kgs of product which has the percentage of lactose <4.5 microns at 6.7%+/−0.3%—From feed batch 2


e—100 kgs of product which has the percentage of lactose <4.5 microns at 5.0%+/−0.3%—From feed batch 2


f—100 kgs of product which has the percentage of lactose <4.5 microns at 3.3%+/−0.3%—From feed batch 2


6. Dispense lactose from blender into 20 kg tie sealed polyethylene bags, heat sealed in a foil laminate bag and pack inside a cardboard box. Pack at least 5 boxes from each batch.


EXAMPLE 2
Lactose Processing

Two batches of coarse crystalline lactose A were selected. These differed from each other inasmuch that they exhibited different D50's. Batch 1 had a D50 of between 110-130 microns and Batch 2 had a D50 of between 160-180 microns, as measured by Malvern laser particle sizing techniques.


Each of these batches were then separated into a fine and coarse fraction using an air classifier. The cut point was nominally about 80 microns.


In each case the fine fraction was discarded and the coarse fractions were milled in an air classifier mill (ACM) so that the D50 of the milled product was nominally 60-70 microns.


Both milled lactose batches were then put through a 150 micron sieve. This is an additional step compared to Example 1.


The milled lactose batches were then classified at a cut point of nominally 25 microns to form a fine fraction and a coarse fraction.


Suitable proportions of the coarse and fine fraction from each milled batch were blended together so that the percentage of lactose <4.5 microns was:


(i) 6.7%+/−0.3%; ex batch 1


(ii) 5.0%+/−0.3%; ex batch 1


(iii) 3.3%+/−0.3%; ex batch 1


(i) 6.7%+1-0.3%; ex batch 2


(ii) 5.0%+/−0.3%; ex batch 2


(iii) 3.3%+/−0.3%; ex batch 2


The unit operation of this protocol pertains to the process of classification of feed, milling, classifying, sieving, and blending of lactose.


The following equipment may be used:


pilot scale blender


full scale classifier


The purpose of this example is to manufacture lactose batches with the same overall particle size distribution from different feed batches. This work will use the Full Scale Classifier.


The above teachings are exemplified by the following protocol:


1. Select two batches of crystalline lactose A, batch 1 that has a D50 of 120-130 microns, and the percentage lactose less than 15 microns is greater than 3%, and batch 2 with an D50 of 170-180 microns and the percentage lactose less than 15 microns is less than 1.5%. For the purposes of this protocol however, the D50 range was altered such that the batch 1 D50 was from 110-130 microns and the batch 2 D50 was from 160-180 microns.


Treat each of these big bags in an identical fashion as described in stages 2 through to 5.


2. Using the full scale classifier, separate the whole batch as cleanly as possible into two fractions, one being <80 microns and the other being >80 microns. The same settings should be used as those used in Example 1 and it is desirable that no changes be made to the settings during the classification.


3. Mill the coarse fraction obtained from 2. Set the mill at nominally the same as used for typical lactose milling. Once the mill is set, discard any test millings and then mill the coarse fractions from the batch at the same settings.


4. Sieve the milled material through a 150-micron sieve.


5. Using the full scale classifier, separate each sieved milled batch as cleanly as possible into two fractions, one being nominally <25 microns and the other being nominally >25 microns. These settings should remain constant during the classification of the batch.


6. Recombination by blending: Using appropriate coarse and fine aliquots from batches 1 and 2 at the end of stage 5, recombine the lactose in the pilot scale blender to give:


a—100 kgs of product which has the percentage of lactose <4.5 microns at 6.7%+/−0.3%—(batch 1, Fine Feed)


b—100 kgs of product which has the percentage of lactose <4.5 microns at 6.7%+/−0.3%—(batch 2, Coarse Feed)


No Targets for the D50 are given for these recombinations, 60-90 microns would be ideal.


7. Dispense lactose from blender into 20 kg tie sealed polythene bags, heat sealed in a foil laminate bag and pack inside a cardboard box. Pack at least 5 boxes from each batch.


EXAMPLE 3
Lactose Processing

Two batches of coarse crystalline lactose A were selected. These differed from each other inasmuch that they exhibited different D50's. Batch 1 had a D50 of between 110-130 microns and Batch 2 had a D50 of between 160-180 microns, as measured by Malvern laser particle sizing techniques.


Each of these batches were then separated into a fine and coarse fraction using an air classifier. The cut point was nominally about 80 microns.


In each case the fine fraction was discarded and the coarse fractions were milled in an air classifier mill (ACM) so that the D50 of the milled product was nominally 60-70 microns.


The milled lactose batches were then classified at a cut point of nominally 25 microns to form a fine fraction and a coarse fraction.


Suitable proportions of the coarse and fine fraction from each milled batch were blended together so that the percentage of lactose <4.5 microns was:


(i) 6.3%+1-0.3%; ex batch 1


(ii) 6.0%+/−0.3%; ex batch 1


(iii) 5.5%+/−0.3%; ex batch 1


(i) 6.3%+/−0.3%; ex batch 2


(ii) 6.0%+/−0.3%; ex batch 2


(iii) 5.5%+/−0.3%; ex batch 2


The above teachings are exemplified by the following protocol:


The unit operation of this protocol pertains to the process of classification of feed, milling, classifying, sieving, and blending of lactose.


The purpose of the protocol set forth in this example is to manufacture lactose batches with the same overall particle size distribution from different feed batches. This work will use the full scale classifier.


The protocol is as follows:


1. Select two batches of crystalline lactose A, batch 1 that has a D50 of 120-130 microns, and the percentage lactose less than 15 microns is greater than 3%, and batch 2 with an D50 of 170-180 microns and the percentage lactose less than 15 microns is less than 1.5%. For the purposes of this protocol however, the D50 range was altered such that the batch 1 D50 was from 110-130 microns and the batch 2 D50 was from 160-180 microns.


Treat each of these big bags in an identical fashion as described in stages 2 through to 4.


2. Using the full scale classifier, separate the whole batch as cleanly as possible into two fractions, one being <80 microns and the other being >80 microns. The same settings should be used as those used in Example 2, these are shown in Table 3 below. It is preferable that no changes are to be made to the settings during the classification.













TABLE 3







Settings
Readings
Calculated



















Classifierspeed
4.1 Hz
246 rpm



Feedrate
15 Hz
12 Rpm
250 Kg/hour


Transport air
1500 Rpm 25 Hz
min 135 m3/h




max 165 m3/h


Washair
1500 Rpm 25 Hz
min 390 m3/h




max 450 m3/h









3. Using the full scale classifier with the settings in Table 4, separate each milled batch as cleanly as possible into two fractions, one being nominally <25 microns and the other being nominally >25 microns.













TABLE 4







Settings
Readings
Calculated



















Classifierspeed
10 Hz
600 rpm



Feedrate
25 Hz
20 Rpm
410 KG/hour


Transport air

min 175 m3/h




max 235 m3/h


Washair

min 620 m3/h




max 675 m3/h


Airsystem
2100 Rpm 35 Hz









The above settings are capable of providing batches that are approximately 80% wt/wt coarse material and 20% wt/wt fine material.


4. Recombination by blending: Using appropriate coarse and fine aliquots from batches 1 and 2 at the end of stage 3, recombine the lactose in the pilot scale blender to give:


a—100 kgs of product which has the percentage of lactose <4.5 microns at 6.3%+/−0.3%—From feed batch 1


b—100 kgs of product which has the percentage of lactose <4.5 microns at 6.0%+1-0.3%—From feed batch 1


c—100 kgs of product which has the percentage of lactose <4.5 microns at 5.5%+/−0.3%—From feed batch 1


This to be repeated using lactose from the second feed batch.


d—100 kgs of product which has the percentage of lactose <4.5 microns at 6.3%+/−0.3%—From feed batch 2


e—100 kgs of product which has the percentage of lactose <4.5 microns at 6.0%+/−0.3%—From feed batch 2


f—100 kgs of product which has the percentage of lactose <4.5 microns at 5.5%+/−0.3%—From feed batch 2

    • Use the same amounts of fines and coarse in each pair of the combinations.
    • Ensure data on Malvern and Sympatec sheets agree with data in the table.









TABLE 5







Particle Size Data for Typical Lactose Production









Coarse fraction












Fine fraction

D90
% 15 μm















Batch number
D10 fine
D50 fine
D90 fine
15 μm fine
D10 Coarse
D50 Coarse
Coarse
coarse










Normal Production Data















1
7.9
23
53
30.5
29
84
183
4.5


2
6.9
19
43
38.9
29
79
169
4.7


3
6.6
20
51
38.5
27
81
161
5.8


4
7.6
20
53
36.4
25
77
151
5.6


5
6.6
18
44
42.7
31
82
160
6.5


6
7.7
24
51
29.9
46
92
168
1


7
7.9
21
48
32.5
45
92
169
1


8
8.2
24
52
28
40
79
143
1.5


9
8.3
25
57
27.3
46
93
167
1.3


10
7.2
20
48
34.7
34
84
138
2.5


11
7.3
20
47
35.1
46
97
184
1


12
7
18
34
39.6
46
104
205
1


13
7.4
19
42
36.9
48
101
184
0.9


14
7.7
19
40
36.5
47
101
191
0.7


15
7.7
19
40
36.5
46
102
200
0.8


16
7.8
21
47
32.2
46
94
175
0.8


17
7.5
22
56
32.2
47
94
171
0.5


18
7.5
22
56
32.2
48
94
171
0.5


19
6.5
20
45
35
29
88
184
4.6


20
6.5
20
45
38.1
52
102
185
0.6


21
6.5
20
46
38.5
48
97
188
1


22
6.5
19
42
38.7
47
105
202
1.2


23
7.3
21
45
33.7
50
100
180
0.9


24
7.1
20
44
34.9
46
92
169
1.3


25
6.9
20
43
37.4
48
95
170
0.9


26
5.8
21
49
36.9
39
83
158
2.4


27
5.9
21
51
36.4
40
82
157
2.2


28
5.7
20
45
38.9
43
91
174
1.97


29
6.9
23
54
32
34
92
185
3.2


30
6.9
23
54
32.3
33
91
184
3.8


31
6.1
22
50
35.19
51
99
181
0.75


32
6.4
22
49
34.7
50
97
180
0.9


33
6.9
24
58
31.37
50
95
176
0.91


34
6.9
18
36
40
46
100
198
0.2


35
6.5
18
40
40
42
84
158
1.1


36
6.3
18
44
40
40
81
154
1.5


37
6.8
19
43
39
43
84
158
1.1


38
6
18
42
42
40
81
155
1.4


39
6
18
41
42
42
88
168
1.5


40
7
19
43
38
44
93
182
0.8


41
6.7
19
42
39
44
94
184
0.8


42
6.2
18
40
43
42
90
180
1


43
6
17
40
43
41
85
168
1.3


44
6.4
18
40
41
42
85
165
1


45
6.9
17
37
42
40
82
161
1


46
6.9
18
40
41
40
82
162
0.9


47
6.6
17
40
42
38
87
177
1.2


48
6.8
18
45
40
38
85
173
1.2


49
6.4
17
37
45
41
86
170
1.2


50
6.1
15
33
48
41
92
187
1


51
6.6
17
37
44
41
87
167
1


52
5.8
15
33
52
33
86
170
2.3


53
6
14
32
52.3
34
85
167
2


54
6.8
16
38
45.8
38
92
173
1.4


55
6.6
14
26
57
34
80
156
2.3


56
6.8
15
29
51
30
74
147
2.8


57
6.3
15
31
51
39
90
170
1.6


58
6.6
18
53
43.6
40
91
174
1.7


59
7.5
20
44
35.2
40
88
168
2.4


60
7.8
23
51
30.3
45
92
166
1.7


61
7.5
22
48
33
43
87
158
1.8


62
7.4
22
50
32.5
44
89
164
1.5


63
7.6
22
49
32.6
47
97
184
1.4


64
7.7
24
53
29.6
47
96
186
1.1


65
7.5
23
52
31.3
45
93
181
1.2


66
7
21
49
34.8
46
94
179
1.3


67
6.8
20
48
36.2
46
96
178
1.5


68
7.3
20
44
35.8
48
98
178
1.3


69
7.1
19
44
37.2
48
97
172
1.6


70
6.9
20
48
35.9
49
98
175
1.3


71
6.5
20
45
37.9
47
96
173
1.5


72
6.6
20
48
36.5
47
95
172
1.3


73
6.5
21
52
36.1
47
95
171
1.3


Mean
6.9
19.6
44.8
38.0
42.0
90.6
172.5
1.7


Std dev
0.6
2.5
6.9
5.9
6.3
7.0
13.0
1.3


% rsd
8.9%
12.7%
15.4%
15.6%
15.0%
7.8%
7.5%
75.3%







Pre-Classified Feed Data (Malvern)















EXAMPLE 1 (Fine)
7
28
64
27.1
52
97
164
2.2


EXAMPLE 1 (Coarse)
7
26
55
28.8
48
101
189
2.5


EXAMPLE 2 (Fine)
7.3
26
59
28.5
49
88
153
1.5


EXAMPLE 2 (Coarse)
7
26
59
30
49
93
166
2


EXAMPLE 3 (Fine)
7.1
27
58
27.4
48
87
151
1.7


EXAMPLE 3 (Coarse)
7
26
56
29
50
91
157
1.6


Mean of examples
7.1
26.5
58.5
28.5
49.3
92.8
163.3
1.9


1, 2 & 3


Stdev of Examples
0.1
0.8
3.1
1.1
1.5
5.4
13.9
0.4


1, 2 & 3


RSD of Examples 1, 2
1.7%
3.2%
5.4%
3.8%
3.1%
5.8%
8.5%
20.2%


& 3


Mean of Examples 2
7.1
26.3
58.0
28.7
49.0
89.8
156.8
1.7


& 3


Std Dev. Of Examples
0.1
0.5
1.4
1.1
0.8
2.8
6.7
0.2


2 & 3


RSD of Examples 2 & 3
2.0%
1.9%
2.4%
3.8%
1.7%
3.1%
4.2%
12.7%









An important aspect of the parameters described within the protocols illustrated in Examples 1 through 3 is that all initial stages are the same, irrespective of the desired amount of fine lactose in the final product to be manufactured. The varying amounts of fine lactose that are desired are achieved by combining the appropriate proportions of the coarse and fines fractions and not to mill “harder” for the lactose batches that require more fine lactose in the final product. Tables 6 and 7 show the particle size for the feed Batch A crystal by both Malvern and Sympatec, that was used in these trials.


It can be seen from these three examples that all the initial stages are similar, if not identical. The only stage at which there is a change is at the blending stage, in which more fine lactose would be added to achieve the required targets at %<4.5 microns.


Tables 6 and 7 show the particle size data for the both coarse and fine feed crystal lactose used in Examples 1, 2 and 3. (Malvern and Sympatec)









TABLE 6







Particle size data of the feed lactose prior to classification -


Malvern









Malvern Data











Feed Batch
D10
D50
D90
% < 15 microns














“Fine” Feed for Example 1
57
123
208
2


“Coarse” Feed for Example 1
86
176
284
0.8


“Fine” Feed for Example 2
53
114
208
1.14


“Coarse” Feed for Example 2
84
162
270
0.7


“Fine” Feed for Example 3
53
114
207
1.02


“Coarse” Feed for Example 3
81
161
274
0.7
















TABLE 7







Particle size data of the feed lactose prior to classification -


Sympatec









Malvern Data











Feed Batch
D10
D50
D90
% < 4.5 microns














“Fine” Feed for Example 1
40
116
188
2


“Coarse” Feed for Example 1-
63
165
263
1.3


“Fine” Feed for Example 2
39
103
180
1.3


“Coarse” Feed for Example 2
68
150
239
1.0


“Fine” Feed for Example 3
38
102
177
1.1


“Coarse” Feed for Example 3
65
149
248
1.3










Discussion:


A range of feed lactose has been covered by choosing both coarse and fine feed lactose in each of these three examples. They contain varying amounts of lactose that would pass through the mill, essentially un-milled, and end up in packed product.


In each of the examples 1-3, the majority of these small particles are removed by a classification process so that the resultant feed material is much more uniform when presented to the mill. A target was to reduce the amount of lactose particles less than 70 microns to less than 10%. An alternative way of expressing this is that the D10 of the resulting lactose should be greater than 70 microns by Sympatec.


The results from the three examples are shown in Table 8.









TABLE 8







Coarse Fraction from the Crystalline Feed Lactose after initial


classification step - Sympatec









Sympatec Data












D10
D50
D90
% < 4.5 microns















“Fine” Feed for Example 1
82
135
202
0.0


after classification


“Coarse” Feed for Example 1
107
177
259
0.0


after classification


“Fine” Feed for Example 2-
66
125
202
0.6


after classification


“Coarse” Feed for Example 2
94
160
240
0.2


after classification (Coarse)


“Fine” Feed for Example 3
67
125
203
0.4


after classification


“Coarse” Feed for Example 3
92
158
245
0.2


after classification









It can be seen from Table 8 that there were two instances in which the target for removing the fine material less than 70 microns was not quite achieved, although the values of 66 and 67 microns are close enough that they are believed to not impact on the outcome of the experiments.


Milling of the Classified Feed


Each of the coarse fractions were then milled to reduce the D50 to between 60-70 microns by Malvern. The values from Example 1 indicated that slightly harder milling was required, so this was adjusted for Examples 2 and 3.


The results are shown in Table 9 (Malvern) and Table 10 (Sympatec).









TABLE 9







Milled “Coarse” fraction. Particle Size Data by Malvern.









Malvern Data












D10
D50
D90
% < 15 microns















“Fine” Feed for Example 1
15
75
152
10.0


after milling coarse fraction)


“Coarse” Feed for Example 1
13
72
169
11.4


after milling coarse fraction)


“Fine” Feed for Example 2
15
70
141
9.9


after milling coarse fraction)


“Coarse” Feed for Example 2
13
66
145
11.5


after milling coarse fraction)


“Fine” Feed for Example 3
14
64
133
10.9


after milling coarse fraction)


“Coarse” Feed for Example 3
12
61
139
13.1


after milling coarse fraction)
















TABLE 10







Milled “Coarse” fraction. Particle Size Data by Sympatec









Sympatec Data












D10
D50
D90
% < 4.5 microns















“Fine” Feed for Example 1
7.0
63
140
6.5


after milling coarse fraction)


“Coarse” Feed for Example 1
6.3
55
151
7.3


after milling coarse fraction)


“Fine” Feed for Example 2
7.5
59
127
6.3


after milling coarse fraction)


“Coarse” Feed for Example 2
6.1
54
132
7.7


after milling coarse fraction)


“Fine” Feed for Example 3
7.0
55
123
6.7


after milling coarse fraction)


“Coarse” Feed for Example 3
5.4
48
125
8.3


after milling coarse fraction)









Classification of the Milled Lactose


The milled lactose was then separated into a coarse and fine fraction using the same classifier as was used to separate the fine lactose from the input feed lactose. The resultant particle size data are shown in Tables 11, 12, 13 and 14.









TABLE 11







Fine Fractions after Milling and Classification of the Coarse


Crystalline Feed Fraction by Malvern









Malvern Data















% < 15



D10
D50
D90
microns















“Fine” Feed for Example 1
7.0
28
64
27.1


Milled/Classified after classification


“Coarse” Feed for Example 1
7.0
26
55
28.8


Milled/Classified after classification


“Fine” Feed for Example 2
7.3
26
59
28.5


Milled/Classified after classification


“Coarse” Feed for Example 2
7.0
26
59
30.0


Milled/Classified after classification


“Fine” Feed for Example 3
7.1
27
58
27.4


Milled/Classified after classification


“Coarse” Feed for Example 3
7.0
26
56
29.0


Milled/Classified after classification
















TABLE 12







Coarse Fractions after Milling and Classification of the Coarse


Crystalline Feed Fraction by Malvern









Malvern Data















% < 15



D10
D50
D90
microns















“Fine” Feed for Example 1
52
97
164
2.2


Milled/Classified after classification


“Coarse” Feed for Example 1
48
101
189
2.5


Milled/Classified after classification


“Fine” Feed for Example 2
49
88
153
1.5


Milled/Classified after classification


“Coarse” Feed for Example 2
49
93
166
2.0


Milled/Classified after classification


“Fine” Feed for Example 3
48
87
151
1.7


Milled/Classified after classification


“Coarse” Feed for Example 3
50
91
157
1.6


Milled/Classified after classification
















TABLE 13







Fine Fractions after Milling and Classification of the Coarse


Crystalline Feed Fraction by Sympatec









Sympatec Data















% < 15



D10
D50
D90
microns















“Fine” Feed for Example 1
4.0
22
57
12.9


Milled/Classified after classification


“Coarse” Feed for Example 1
4.0
22
56
13.1


Milled/Classified after classification


“Fine” Feed for Example 2
3.4
21
52
13.9


Milled/Classified after classification


“Coarse” Feed for Example 2
3.0
20
51
15.1


Milled/Classified after classification


“Fine” Feed for Example 3
3.5
22
54
13.3


Milled/Classified after classification


“Coarse” Feed for Example 3
3.0
21
54
14.5


Milled/Classified after classification
















TABLE 14







Coarse Fractions after Milling and Classification of the


Coarse Crystalline Feed Fraction by Sympatec









Sympatec Data















% < 15



D10
D50
D90
microns















“Fine” Feed for Example 1
39
90
149
2.9


Milled/Classified after classification


“Coarse” Feed for Example 1
35
93
174
2.9


Milled/Classified after classification


“Fine” Feed for Example 2
40
83
141
2.0


Milled/Classified after classification


“Coarse” Feed for Example 2
39
88
150
2.5


Milled/Classified after classification


“Fine” Feed for Example 3
40
82
139
2.1


Milled/Classified after classification


“Coarse” Feed for Example 3
43
87
146
2.1


Milled/Classified after classification










Recombination by Blending


The Examples 1-3 then call for appropriate portions of the fine and coarse fractions to be blended together so that the resultant blend contains the required amount of lactose that is less than 4.5 microns. This is in order to achieve the desired value for the FPMass performance for an inhalable formulation of salmeterol xinafoate and fluticasone propionate. These target values are listed in the Examples 1-3, and the results are shown in Tables 15-17.









TABLE 15







Particle Size Data for final packed product from Example 1-


Sympatec









Sympatec Data












D10
D50
D90
% < 4.5 microns















“Fine” Feed for Example 1






Target - 3.3% +/− 0.3%
28
89
150
3.4


Target - 6.7% +/− 0.3%,
7
62
139
6.7


Target - 5.0% +/− 0.3%
11
78
147
5.0


“Coarse” Feed for Example 1


Target - 6.7% +/− 0.3%,
7.3
66
161
6.5


Target - 5.0% +/− 0.3%
10
79
167
5.2


Target - 3.3% +/− 0.3%
26
91
172
3.4










It can be seen from these Example 1 data that the Sympatec targets at %<4.5 microns were met in every case.









TABLE 16







Particle Size Data for final packed product from Example 2-


Sympatec









Sympatec Data















% < 4.5



D10
D50
D90
microns















“Fine” Feed for Example 2-216014






Target - 6.7% +/− 0.3%
7.2
57
125
6.6


Target - 5.0% +/− 0.3%,
10
67
131
5.1


Target - 3.3% +/− 0.3%
23
76
135
3.3


“Coarse” Feed for Example 2-


216017


Target - 6.7% +/− 0.3%,
7.4
59
134
6.4


Target - 5.0% +/− 0.3%
11
75
145
5.0


Target - 3.3% +/− 0.3%
24
83
148
3.3









It can be seen from the Example 2 particle size data that the Sympatec targets were met in every case.









TABLE 17







Particle Size Data for final packed product from Example 3-


Sympatec









Sympatec Data












D10
D50
D90
% < 4.5 microns















“Fine” Feed for Example 3






Target - 6.3% +/− 0.3%
9.0
63
129
5.5


Target - 6.0% +/− 0.3%
10.0
68
132
5.1


Target - 5.5% +/− 0.3%
11
70
133
4.7


“Coarse” Feed for Example 3


Target - 6.3 +/− 0.3%
7.8
66
135
6.2


Target - 6.0 +/− 0.3%
7.9
69
137
6.1


Target - 5.5 +/− 0.3%
10.0
72
139
5.3









It can be seen from these Example 3 data that the Sympatec targets were met for the three batches stemming from the coarse feed but not for those made from the fine feed.


Averages and relative standard deviation values for the D10, D50, D90 and the %<15 microns for both the fine and coarse fractions for conventional production were evaluated, compared to the process of the invention. These are shown in Table 17. All values are Malvern data and the normal production is all batches of the same lactose product manufactured over an 18 month period.









TABLE 17







Assessment of Particle size consistency for Example 1,


Example 2 and Example 3 data












d10
d50
d90
% < 15 microns











Fine fraction after Classification - Malvern











Current Process approximately 18 months normal
6.9
19.6
44.8
38.0


production (mean of 73 batches)


Example 1, 2 and 3 mean of 6 batches
7.1
26.5
58.5
28.5


RSD Current Process approximately 18 months normal
8.9%
12.7%
15.4%
15.6%


production- (73 batches)


RSD Example 1, 2 and 3- (6 batches)
1.7%
3.2%
5.4%
3.8%







Coarse Fraction after Classification - Malvern











Current Process approximately 18 months normal
42.0
90.6
172.5
1.7


production (mean of 73 batches)


Example 1, 2 and 3 mean of 6 batches
49.3
92.8
163.3
1.9


RSD Current Process approximately 18 months normal
15.0%
7.8%
7.5%
75.3%


production- (73 batches)


RSD Example 1, 2 and 3- (6 batches)
3.1%
5.8%
8.5%
20.2%









The results in Table 17 show that the particle size of the coarse and fine fractions are more consistent than that obtained during normal production, despite the fact that an adjustment was made to the milling settings between Example 1 and Examples 2 and 3. If Example 1 data is eliminated from the assessment then the variation in particle size is even less as shown in Table 18.









TABLE 18







Assessment of Example 2 and Example 3 data only-Malvern












d10
D50
D90
% < 15 microns











Fine fraction after Classification - Malvern











Current Process approximately 18 months
6.9
19.6
44.8
38.0


normal production (mean of 73 batches)


Example 2 and 3 mean of 4 batches
7.1
26.3
58.0
28.7


RSD Current Process approximately 18 months
8.9%
12.7%
15.4%
15.6%


normal production- (73 batches)


RSD EXAMPLE 2 and 3- (4 batches)
2.0%
1.9%
2.4%
3.8%







Coarse Fraction after Classification - Malvern











Current Process approximately 18 months
42.0
90.6
172.5
1.7


normal production (mean of 73 batches)


Example 2 and 3 approximately 18 months
49.0
89.8
156.8
1.7


normal production mean of 4 batches


RSD Current Process approximately 18 months
15.0%
7.8%
7.5%
75.3%


normal production- (73 batches)


RSD Example 2 and 3- (4 batches)
1.7%
3.1%
4.2%
12.7%










Particle Size Profiles for Example 1, Example 2 and Example 3


The full profiles for each of the three pairs of lactose made in Examples 1 and 3 are shown in FIGS. 1-3.


It can be seen that these three pairs of curves are reasonably similar, despite originating from a “coarse” and “fine” feed in each occasion. For a comparison FIG. 4 shows the data form Example 2 overlaid with two normal production batches of similar lactose. These show the extremes in differing profiles that can be obtained during normal production.


EXAMPLE 4
Lactose Production

The following example demonstrates the production of lactose suitable for use in inhalation formulations, which has been produced by a method that does not require the combination of any of the fine fraction to the coarse fraction.


The following experimental method may be employed:

    • 1. Classify 2 tons of crystalline lactose A so that the majority of fine crystals <70 microns are removed into the fine fraction. The remaining coarse fraction must comply with the acceptance criteria shown in Table 19 below.











TABLE 19









Measurement are by Sympatec











%<4.5 microns
D10
D50














Coarse Fraction
<0.2%
>70 microns
>130 microns











    • 3. Mill only the coarse fraction of lactose targetting 60 microns +/−3 microns for the D50 of the milled product.

    • 4. Using pilot scale blender, separate 300 kgs of the milled batch into a fine and coarse fraction using the maximum classifier wheel speed and suitable air flow parameters to achieve the lowest micron cut point that can be achieved. This will leave a coarse fraction that contains as much fine lactose as possible. (Product A)

    • 5. Repeat 4 on another 300 kg aliquot of the milled lactose, but reduce the speed of the classifier wheel and keep the air flow at the same settings. This will produce a somewhat coarser coarse fraction. (Product B)

    • 6. Repeat 4 again on another 300 kg aliquot of the milled lactose, but reduce the speed of the classifier wheel further and keep the air flow at the same settings. This again will produce an even coarser coarse fraction. (Product C)

    • 7. Do not add any of the fine fractions to the coarse fractions, but blend each of the coarse fractions to ensure homogeneity. Dispense the blended lactose into 20 kg tie sealed polyethylene bags, which are then heat sealed into a foil laminate bag.

    • Pack at least 7×20 kgs boxes of each batch, and record the particle size distribution by Sympatec on the final product.












TABLE 20







Results of the Classified Feed Lactose - Coarse Fraction:












Sample Number
%<4.5 microns
D10
D50
















1
0%
92.03
155.96



2
0%
93.87
159.5



3
0%
90.75
156.24



4
0%
93.28
158.26



5
0%
92.53
157.05










It can be seen from the data in Table 20 that the readings comply with the specifications detailed in Table 19.


Results for the full particle size distribution of the final products A, B & C by Sympatec are in Table 21.














TABLE 21







Sympatec High






Size Microns
Product A
Product B
Product C





















4.50
4.26
4.01
3.91



5.50
5.30
4.94
4.80



6.50
6.33
5.86
5.65



7.50
7.36
6.76
6.48



9.00
8.89
8.10
7.71



11.00
10.92
9.88
9.33



13.00
12.94
11.68
10.98



15.50
15.47
13.99
13.11



18.50
18.49
16.83
15.79



21.50
21.47
19.75
18.59



25.00
24.91
23.19
21.94



30.00
29.69
28.07
26.79



37.50
36.54
35.18
33.96



45.00
43.05
41.93
40.85



52.50
49.24
48.34
47.43



62.50
57.02
56.34
55.64



75.00
65.83
65.35
64.89



90.00
74.83
74.48
74.26



105.00
81.95
81.64
81.60



125.00
88.81
88.49
88.60



150.00
94.13
93.77
93.97



180.00
97.47
97.08
97.30



215.00
99.14
98.78
98.96



255.00
99.77
99.54
99.65



305.00
100.00
99.87
99.93



365.00
100.00
100.00
99.98



435.00
100.00
100.00
100.00



515.00
100.00
100.00
100.00



615.00
100.00
100.00
100.00



735.00
100.00
100.00
100.00



875.00
100.00
100.00
100.00










These data can also be presented graphically as shown in FIG. 8. It can be seen from FIG. 8 that the amount of lactose present in the region <25 microns high size is of the same order as that shown in FIG. 4 which is that of routine commercial batches used for inhalation grade lactose. Thus, these coarse fractions are believed to be capable of displaying suitable Fine Particle Mass (FPM) performance to make them useful as inhalation grade lactose.


Conclusions:


All of the trials, Example 1, Example 2 and Example 3 have been assessed for CI performance at release and upon accelerated ageing at 25 degrees Celsius, 75% relative humidity. The series of Tables 22A, 22B and 22C show the initial mean data that were obtained during the stability study for Fine Particle Mass (FPMass), Throat, Pre-separator and stage 0, (TP0) and Stages 3+4.









TABLE 22A i







Initial Mean Fine Particle Mass Data for 75 μg salmeterol


xinafoate (equivalent to 50 μg salmeterol base) and 100 μg fluticasone


propionate formulation using a conventional fine lactose










Fine Particle
Fine Particle


DP Trial
Mass (FP)
Mass (SX)





Example 1 - (fine lactose) ex Coarse
28.6
12.4


feed


Example 1 - (fine lactose) ex Fine feed
31.8
13.9


Example 2 - (fine lactose) ex Coarse
26.3
12.9


feed


Example 2 - (fine lactose) ex Fine
25.6
12.4


feed


Example 3 - (fine lactose) ex Coarse
22.7
10.3


feed


Example 3 - (fine lactose) ex Fine feed
21.3
10.4
















TABLE 22A ii







Initial Mean TPO Data for 50 μg salmeterol base/100 μg


fluticasone propionate formulation sing a conventional fine lactose











DP Trial
TPO (FP)
TPO (SX)







Example 1 - (fine lactose) ex Coarse
64.4
32.9



feed



Example 1 - (fine lactose) ex Fine
62.0
31.8



feed



Example 2 - (fine lactose) ex Coarse
65.7
33.0



feed



Example 2 - (fine lactose) ex Fine
65.9
32.8



feed



Example 3 - (fine lactose) ex Coarse
68.8
34.4



feed



Example 3 - (fine lactose) ex Fine
70.2
35.4



feed

















TABLE 22A iii







Initial Mean Stages 3 + 4 Data for 50 μg salmeterol base/100 μg


fluticasone propionate formulation using conventional fine lactose











DP Trial
3 + 4 (FP)
3 + 4 (SX)







Example 1 - fine lactose) ex Coarse
15.8
7.0



feed



Example 1 - (fine lactose) ex Fine
18.0
8.1



feed



Example 2 - (fine lactose) ex Coarse
14.4
7.2



feed



Example 2 - (fine lactose) ex Fine
13.9
6.9



feed



Example 3 - (fine lactose) ex Coarse
11.9
5.4



feed



Example 3 - (fine lactose) ex Fine
11.9
5.7



feed







NB.



Specifications for Advair 50/100 are:



FP FPMass, 21-30;



SX FPMass, 9-13



FP Stages 3 + 4, 11-19;



SX Stages 3 + 4, 4-8



FP TP0, 55-80;



SX TP0, 28-42













TABLE 22B i







Initial Mean Fine Particle Mass Data for 50 μg salmeterol


base/250 μg fluticasone propionate formulation using a conventional


medium grade lactose










Fine Particle
Fine


DP Trial
Mass (FP)
Particle Mass (SX)












Example 1 - (Medium Lactose) ex
57.8
10.5


Coarse feed


Example 1 - (Medium Lactose) ex
55.7
10.4


Fine feed


Example 3 - (Medium Lactose) ex
68.8
13.3


Coarse feed


Example 3 - (Medium Lactose) ex
50.3
9.7


Fine feed
















TABLE 22B ii







Initial Mean TPO Data for 50 μg salmeterol base/250 μg


fluticasone propionate formulation using a medium grade lactose











DP Trial
TPO (FP)
TPO (SX)







Example 1 - (Medium Lactose) ex
170.5
34.0



Coarse feed



Example 1 - (Medium Lactose) ex
174.8
35.2



Fine feed



Example 3 - (Medium Lactose) ex
154.7
32.1



Coarse feed



Example 3 - (Medium Lactose) ex
168.8
33.2



Fine feed

















TABLE 22B iii







Initial Mean Stages 3 + 4 Data for 50 μg salmeterol base/250 μg


fluticasone propionate formulation using a conventional medium


grade lactose









DP Trial
Stages 3 + 4 (FP)
Stages 3 + 4 (SX)





Example 1 - (Medium Lactose) ex
32.7
6.0


Coarse feed


Example 1 - (Medium Lactose) ex
30.2
5.7


Fine feed


Example 3 - (Medium Lactose) ex
40.0
7.8


Coarse feed


Example 3 - (Medium Lactose) ex
27.2
5.2


Fine feed





NB.


Specifications for Advair 50/250 are:


FP FPMass, 51-75;


SX FP Mass, 9-13


FP Stages 3 + 4, 29-48;


SX Stages 3 + 4, 5-8


FP TP0, 140-200;


SX TP0, 28-42













TABLE 22C i







Initial Mean Fine Particle Mass Data for 50 μg salmeterol


base/500 μg fluticasone propionate formulation using a conventional


coarse grade lactose










Fine Particle
Fine


DP Trial
Mass (FP)
Particle Mass (SX)












Example 1 - (Coarse Lactose) ex
74.9
7.1


Coarse feed


Example 1 - (Coarse Lactose) ex
85.0
7.9


Fine feed


Example 3 - (Coarse Lactose) ex
125.7
12.7


Coarse feed


Example 3 - (Coarse Lactose) ex
123.5
11.9


Fine feed
















TABLE 22C ii







Initial Mean TPO Data for 50 μg salmeterol base/500 μg


fluticasone propionate formulation using a conventional coarse grade


lactose











DP Trial
TPO (FP)
TPO (SX)







Example 1 - (Coarse Lactose) ex
399.2
39.3



Coarse feed



Example 1 - (Coarse Lactose) ex
392.1
38.8



Fine feed



Example 3 - (Coarse Lactose) ex
293.1
33.4



Coarse feed



Example 3 - (Coarse Lactose) ex
323.0
32.3



Fine feed

















TABLE 22C iii







Initial Mean Stages 3 + 4 Data for 50 μg salmeterol base/500 μg


fluticasone propionate formulation using a conventional coarse


grade lactose









DP Trial
Stages 3 + 4 (FP)
Stages 3 + 4 (SX)





Example 1 - (Coarse Lactose) ex
42.4
4.0


Coarse feed


Example 1 - (Coarse Lactose) ex
49.0
4.5


Fine feed


Example 3 - (Coarse Lactose) ex
74.2
7.5


Coarse feed


Example 3 - (Coarse Lactose) ex
78.5
7.6


Fine feed





NB.


Specifications for Advair 50/500 are:


FP FPMass, 106-150;


SX FPMass, 10-14.


FP Stages 3 + 4, 60-95;


SX Stages 3 + 4, 5-9.


FP TP0, 290-400;


SX TP0, 28-42.






Taking all of the factors into account, the data suggests that the pre-classification of the feed crystal to remove small lactose crystals below approximately 70 microns does not appear to significantly alter the performance ex device when compared to the normal method of lactose production. Additionally, and advantageously, the invention offers a process for forming lactose which provides improved control of particle size distribution relative to conventional processes.


EXAMPLE 5
Stability Tests

Stability data for various formulations each containing 100 μg fluticasone propionate and 50 μg salmeterol base along with lactose formed in accordance with the invention were evaluated under naked conditions at 25° C. and 75 percent Relative Humidity. As shown in Table 23, such data were evaluated at different time points. As shown, formulations made from the process according to the invention exhibit good stability characteristics.














TABLE 23









SX Fine
FP Fine


Advair
Experiment
Conditions:
Time point
Particle
Particle


Strength
Number
Temp/% RH
(months)
Mass
Mass




















100/50
1

initial
12.38
28.55


100/50
1
25/75
0.5
12.53
27.74


100/50
1
25/75
1.0
12.87
28.72


100/50
1
25/75
1.5
12.22
27.34


100/50
1
25/75
2.0
12.05
27.61


100/50
1
25/75
3.0
11.45
25.77


100/50
1

initial
13.87
31.81


100/50
1
25/75
0.5
13.14
30.60


100/50
1
25/75
1.0
12.97
29.29


100/50
1
25/75
1.5
13.11
29.61


100/50
1
25/75
2.0
13.23
30.77


100/50
1
25/75
3.0
12.29
27.83


100/50
2

initial
12.42
25.60


100/50
2
25/75
2.0
11.59
24.64


100/50
2
25/75
3.0
11.34
24.24


100/50
2

initial
12.92
26.31


100/50
2
25/75
2.0
11.80
24.88


100/50
2
25/75
3.0
10.84
23.04


100/50
3

initial
10.27
22.69


100/50
3
25/75
0.5
11.65
24.27


100/50
3
25/75
1.0
10.84
24.92


100/50
3
25/75
1.5
10.59
22.21


100/50
3
25/75
3.0
10.23
21.86


100/50
3

initial
10.43
21.32


100/50
3
25/75
0.5
9.06
19.21


100/50
3
25/75
1.0
10.05
21.11


100/50
3
25/75
1.5
8.61
18.38


100/50
3
25/75
3.0
8.21
17.45









EXAMPLES 6-8
Stability Studies

Examples 6-8 set forth various pharmaceutical formulations for which the stability was evaluated. Batches 01, 02 and 03 were processed in accordance with the present invention by employing a pre-classification stage prior to proceeding by conventional manufacturing used for making Advair® made commercially available by GlaxoSmithkline of Brenfford, United Kingdom. Batch 04 was made using an Advair® manufacturing process. In Tables 24-28, the symbol “T” indicates that the particle size distribution of salmeterol xinafoate and fluticasone propionate were evaluated by Cascade Impaction according to Method STM-195.


Tables 29-31 illustrate the average change of drug recovered in stages 1 to 5 as a percentage, normalising the results to take into account the total drug recovery for each device. The change is determined between the initial and final time points as defined in the protocol and is calculated according to the following equation:












Stage





1





to





5






recovery





at





initial








Total





recovery






at





initial





point





×
100

-







Stage





1





to





5





recovery











at





final





time





point





Total





recovery





at





final





time


×
100





Tables 32-34 provide summaries of the stability studies that are set forth in Tables 35 to 130. These tables illustrate Cascade Impaction results.


Referring to the tables that follow:


“500/50 μg” refers to a formulation containing 50 μg salmeterol base and 500 μg fluticasone propionate in lactose.


“250/50 μg” refers to a formulation containing 50 μg salmeterol base and 250 μg fluticasone propionate in lactose.


“100/50 μg” refers to a formulation containing 50 μg salmeterol base and 100 μg fluticasone propionate in lactose.


“MDPI” refers to a multidose dry powder inhaler.


A* refers to in-use testing. Devices to be removed from 25° C./60% RH storage and overwrappers to be removed. Samples to be returned to storage at 25° C./75% RH. See Tables 25 and 27.


In Tables 32-34, Batches A, E and I correspond to batch 01. Batches B, F and J correspond to batch 02. Batches C, G and K correspond to batch 03. Batches D, H and L correspond to batch 04.


Tables 24-25: Testing Protocols for 100/50 μg










TABLE 24







Storage condition
Storage time (months)

















° C./% RH
Initial
0.5
1
1.5
3
6
9
12
14
15






T











25/60 Wrapped


T

T
T
T
T
A*
T


25/75 Naked

T
T
T
T




















TABLE 25









Storage condition
Storage time (months)














° C./% RH
0
0.5
1
1.5



[Total time on test]
[14]
[14.5]
[15]
[15.5]







25/75 Naked
T
T
T
T

















TABLE 26







Testing Protocol for 250/50 μg








Storage condition
Storage time (months)

















° C./% RH
Initial
0.5
1
1.5
3
6
9
12
17
18






T











25/60 Wrapped


T

T
T
T
T
A*
T


25/75 Naked

T
T
T
T









Tables 27-28 Testing Protocol for 500/50 μg













TABLE 27









Storage condition
Storage time (months)














° C./% RH
0
0.5
1
1.5



[Total time on test]
[17]
[17.5]
[18]
[18.5]







25/75 Naked
T
T
T
T












Storage condition
Storage time (months)

















° C./% RH
Initial
0.5
1
1.5
3
6
9
12
17
18






T


25/60 Wrapped


T

T
T
T
T
A*
T


25/75 Naked

T
T
T
T




















TABLE 28









Storage condition
Storage time (months)














° C./% RH
0
0.5
1
1.5



[Total time on test]
[17]
[17.5]
[18]
[18.5]







25/75 Naked
T
T
T
T

















TABLE 29







Average Change of Drug Recovered in Stages 1-5 (100/50 μg)










Batch












Storage Condition/Drug
01
02
03
04














25° C./60% RH Wrapped SX
−5
−5
−5
−5


25° C./60% RH Wrapped FP
−5
−5
−6
−6


25° C./75% RH Naked SX
−7
−3
−4
−4


25° C./75% RH Naked FP
−7
−4
−6
−5


25° C./75% RH Naked Aged In Use SX
0
+1
−2
−1


25° C./75% RH Naked Aged In Use FP
0
0
−2
−1
















TABLE 30







Average Change of Drug Recovered in Stages 1-5 (250/50 μg)










Batch












Storage Condition/Drug
01
02
03
04














25° C./60% RH Wrapped SX
−5
−4
−6
−3


25° C./60% RH Wrapped FP
−6
−5
−7
−4


25° C./75% RH Naked SX
−5
−5
−4
−4


25° C./75% RH Naked FP
−5
−5
−4
−3


25° C./75% RH Naked Aged In Use SX
+1
0
−2
0


25° C./75% RH Naked Aged In Use FP
0
0
−2
−1
















TABLE 31







Average Change of Drug Recovered in Stages 1-5 (500/50 μg)










Batch












Storage Condition/Drug
01
02
03
04














25° C./60% RH Wrapped SX
−5
−3
−4
−3


25° C./60% RH Wrapped FP
−5
−3
−4
−3


25° C./75% RH Naked SX
−3
−3
0
−4


25° C./75% RH Naked FP
−3
−3
−1
−4


25° C./75% RH Naked Aged In Use SX
+1
+1
0
+2


25° C./75% RH Naked Aged In Use FP
+1
0
0
+1
















TABLE 32







Summary of Stability Studies for 100/50 μg MDPI (Example 6)









Stability data table number (s)












35 to 43
44 to 50
51 to 58
59 to 66















Batch designation (methodology)
A
B
C
D


Lactose batch designation
DD
DD
EE
FF


% of lactose fines
 6.7
 6.7
 7.0
  5.6












Data presented
25/60W
15M
15M
15M
15M



25/75N
 3M
 3M
 3M
 3M



25/75N
1.5M 
1.5M 
1.5M 
1.5M 



Aged In Use











Specification failures 25/60W
1*
1*
1*
0


Specification failures 25/75N
3*
5*
3*
0


Specification failures 25/75N
1*
0 
1*
0


Aged In Use
















TABLE 33







Summary of Stability Studies for 250/50 μg MDPI (Example 7)









Stability data table number (s)












67 to 74
75 to 82
83 to 90
91 to 98















Batch designation (methodology)
E
F
G
H


Lactose batch designation
AA
AA
BB
CC


% of lactose fines
  5.2
  5.2
 6.4
  4.7












Data presented
25/60W
18M
18M
18M
18M



25/75N
 3M
 3M
 3M
 3M



25/75N
1.5M 
1.5M 
1.5M 
1.5M 



Aged In Use











Specification failures 25/60W
0
 1*
3*
0


Specification failures 25/75N
 2*
0
4*
0


Specification failures 25/75N
0
0
0 
0


Aged In Use
















TABLE 34







Summary of Stability Studies for 500/50 μg MDPI (Example 8)









Stability data table number (s)












99 to 106
107 to 114
115 to 122
123 to 130















Batch designation
I
J
K
L


(methodology)


Lactose batch
GG
GG
GG
HH


designation


% of lactose fines
  4.5
  4.5
  4.5
  4.2












Data presented
25/60W
18M
18M
18M
18M



25/75N
 3M
 3M
 3M
 3M



25/75N
1.5M 
1.5M 
1.5M 
1.5M 



Aged



In Use











Specification failures
2
0
1
5


25/60W


Specification failures
0
0
0
2


25/75N


Specification failures
0
0
0
4


25/75N Aged In Use
















TABLE 35







Stability data for DISKUS ® 100/50 μg 60 Dose Product with overwrap








Packed Batch Number: A
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time













Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
 7 to 13
15, 15
12, 12
10, 12
12, 11


Impaction Salmeterol Sum of stages

14, 14
13, 13
11, 12
11, 11


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
8, 8
7, 7
5, 6
6, 6


Impaction Salmeterol Sum of stages

8, 8
7, 7
6, 6
6, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
33, 33
32, 32
30, 34
32, 33


Impaction Salmeterol Sum of stages

33, 33
34, 34
32, 34
31, 34


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.2
0.0, 0.1
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 36







Stability data for DISKUS ® 100/50 μg 60 Dose Product with overwrap








Packed Batch Number: A
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time













Specification
Initial
9 months
12 months
15 months





Particle Size Distribution by Cascade
 7 to 13
15, 15
11, 12
12, 11
12, 11


Impaction Salmeterol Sum of stages

14, 14
12, 12
11, 12
11, 12


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
8, 8
5, 6
6, 5
6, 6


Impaction Salmeterol Sum of stages

8, 8
6, 6
5, 6
6, 6


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
33, 33
34, 35
35, 33
35, 33


Impaction Salmeterol Sum of stages

33, 33
34, 33
35, 34
34, 34


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.0, 0.0
0.1, 0.1
0.1, 0.1


Impaction Salmeterol Sum of stages

0.1, 0.2
0.0, 0.0
0.1, 0.1
0.1, 0.1


6, 7 & F (μg per blister)


Individual
















TABLE 37







Stability data for DISKUS ® 100/50 μg 60 Dose Product with overwrap








Packed Batch Number: A
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
15 to 30
35, 34
29, 29
25, 28
28, 26


Impaction Fluticasone Propionate

33, 33
30, 30
26, 28
25, 25


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
 6 to 18
20, 20
16, 16
12, 14
15, 14


Impaction Fluticasone Propionate

18, 19
17, 17
13, 14
14, 12


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
55 to 80
64, 63
61, 62
58, 65
62, 64


Impaction Fluticasone Propionate

63, 63
65, 66
62, 65
61, 66


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 1
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 38







Stability data for DISKUS ® 100/50 μg 60 Dose Product with overwrap








Packed Batch Number: A
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 months
12 months
15 months





Particle Size Distribution by Cascade
15 to 30
35, 34
26, 29
28, 27
29, 27


Impaction Fluticasone Propionate

33, 33
28, 28
27, 28
27, 29


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
 6 to 18
20, 20
13, 14
13, 13
15, 14


Impaction Fluticasone Propionate

18, 19
15, 14
12, 13
13, 14


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
55 to 80
64, 63
66, 67
66, 64
68, 64


Impaction Fluticasone Propionate

63, 63
65, 64
68, 66
66, 67


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 1
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 39







Stability data for DISKUS ® 100/50 μg 60 Dose Product without overwrap








Packed Batch Number: A
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
 7 to 13
15, 15
13, 12
11, 11
14, 12
11, 11


Impaction Salmeterol Sum of stages

14, 14
14, 13
12, 11
12, 14
10, 11


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
8, 8
7, 6
6, 6
7, 7
6, 6


Impaction Salmeterol Sum of stages

8, 8
8, 8
7, 6
6, 7
5, 6


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
33, 33
34, 33
32, 33
34, 33
36, 35


Impaction Salmeterol Sum of stages

33, 33
34, 34
33, 33
34, 35
33, 35


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.2, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.2
0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual





Note:


NGT = Not Greater Than













TABLE 40







Stability data for DISKUS ® 100/50 μg 60 Dose Product without overwrap








Packed Batch Number: A
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
17 to 30
35, 34
31, 27
29, 27
32, 29
28, 26


Impaction Fluticasone Propionate

33, 33
33, 31
30, 26
29, 32
25, 27


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
 9 to 19
20, 20
18, 14
15, 14
17, 16
15, 14


Impaction Fluticasone Propionate

18, 19
18, 18
17, 13
15, 17
12, 14


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
55 to 80
64, 63
65, 62
63, 64
65, 63
69, 68


Impaction Fluticasone Propionate

63, 63
65, 64
65, 66
65, 67
65, 69


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 1
0, 0
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 41







Stability data for DISKUS ® 100/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH with overwrap for 14 months








Packed Batch Number: A
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Specification
Initial
2 weeks
1 month
1.5 months
















Particle Size Distribution by Cascade
 7 to 13
12, 12
12, 12
12, 11
12, 11


Impaction Salmeterol Sum of stages

13, 12
11, 12
11, 11
11, 12


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
6, 6
6, 7
5, 5
6, 6


Impaction Salmeterol Sum of stages

6, 6
6, 6
5, 5
5, 6


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
35, 36
33, 34
33, 33
35, 34


Impaction Salmeterol Sum of stages

36, 36
33, 34
32, 34
33, 34


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.1, 0.1
0.1, 0.1
0.1, 0.1


Impaction Salmeterol Sum of stages

0.1, 0.1
0.1, 0.1
0.1, 0.1
0.1, 0.1


6, 7 & F (μg per blister)


Individual
















TABLE 42







Stability data for DISKUS ® 100/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH with overwrap for 14 months (cont'd)








Packed Batch Number: A
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 weeks
1 month
1.5 months





Particle Size Distribution by Cascade
15 to 30
28, 29
30, 28
28, 27
28, 28


Impaction Fluticasone Propionate

31, 28
27, 28
25, 26
27, 29


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
 6 to 18
14, 15
15, 16
13, 13
14, 14


Impaction Fluticasone Propionate

15, 14
14, 14
12, 12
13, 14


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
55 to 80
67, 67
65, 66
65, 64
68, 65


Impaction Fluticasone Propionate

68, 69
65, 65
62, 66
64, 67


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 1
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 43







Stability data for DISKUS ® 100/50 μg 60 Dose Product with overwrap








Packed Batch Number: A
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
7 to 13
14, 13
12, 13
12, 11
10, 10


Impaction Salmeterol Sum of stages

15, 14
12, 12
12, 12
11, 12


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
8, 7
6, 6
6, 6
5, 5


Impaction Salmeterol Sum of stages

8, 8
7, 6
6, 6
6, 6


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
33, 34
35, 36
34, 34
33, 33


Impaction Salmeterol Sum of stages

36, 33
34, 35
35, 35
33, 35


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.2, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.2
0.1, 0.1
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 44







Stability data for DISKUS ® 100/50 μg 60 Dose Product with overwrap








Packed Batch Number: B
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 months
12 months
15 months





Particle Size Distribution by Cascade
 7 to 13
14, 13
12, 13
12, 12
11, 12


Impaction Salmeterol Sum of stages

15, 14
13, 12
12, 11
11, 10


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
8, 7
6, 6
6, 6
5, 6


Impaction Salmeterol Sum of stages

8, 8
6, 6
6, 6
5, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
33, 34
32, 34
32, 33
35, 34


Impaction Salmeterol Sum of stages

36, 33
32, 33
34, 31
33, 35


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.2, 0.1
0.0, 0.0
0.1, 0.1
0.1, 0.1


Impaction Salmeterol Sum of stages

0.1, 0.2
0.1, 0.1
0.1, 0.1
0.1, 0.1


6, 7 & F (μg per blister)


Individual
















TABLE 45







Stability data for DISKUS ® 100/50 μg 60 Dose Product with overwrap








Packed Batch Number: B
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
15 to 30
34, 30
29, 30
28, 27
23, 25


Impaction Fluticasone Propionate

35, 33
29, 29
28, 28
27, 28


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
 6 to 18
18, 15
14, 15
15, 13
11, 12


Impaction Fluticasone Propionate

18, 18
15, 15
13, 14
14, 14


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
55 to 80
63, 66
66, 69
66, 65
64, 63


Impaction Fluticasone Propionate

68, 62
65, 66
67, 66
64, 67


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 1
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 46







Stability data for DISKUS ® 100/50 μg 60 Dose Product with overwrap








Packed Batch Number: B
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 months
12 months
15 months





Particle Size Distribution by Cascade
15 to 30
34, 30
29, 30
26, 28
28, 28


Impaction Fluticasone Propionate

35, 33
30, 29
29, 26
27, 24


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
 6 to 18
18, 15
15, 15
14, 14
13, 14


Impaction Fluticasone Propionate

18, 18
14, 15
14, 14
13, 12


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
55 to 80
63, 66
62, 66
61, 64
68, 65


Impaction Fluticasone Propionate

68, 62
62, 64
67, 62
65, 68


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 1
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual





Note:


NGT = Not Greater Than













TABLE 47







Stability data for DISKUS ® 100/50 μg 60 Dose Product without overwrap








Packed Batch Number: B
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
 7 to 13
14, 13
13, 13
13, 12
13, 11
12, 12


Impaction Salmeterol Sum of stages

15, 14
13, 13
12, 11
13, 12
14, 12


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
8, 7
7, 7
7, 7
7, 6
6, 6


Impaction Salmeterol Sum of stages

8, 8
7, 7
6, 6
7, 6
7, 6


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
33, 34
33, 32
34, 35
35, 30
35, 35


Impaction Salmeterol Sum of stages

36, 33
34, 33
34, 34
34, 30
36, 35


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.2, 0.1
0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.2
0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 48







Stability data for DISKUS ® 100/50 μg 60 Dose Product without overwrap








Packed Batch Number: B
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
17 to 30
34, 30
31, 31
31, 29
31, 27
28, 28


Impaction Fluticasone Propionate

35, 33
31, 30
28, 28
31, 29
32, 28


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
 9 to 19
18, 15
16, 17
17, 16
16, 14
13, 14


Impaction Fluticasone Propionate

18, 18
17, 16
16, 15
16, 15
16, 13


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
55 to 80
63, 66
63, 61
65, 67
67, 57
67, 68


Impaction Fluticasone Propionate

68, 62
63, 62
66, 66
66, 58
70, 66


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 1
0, 0
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 49







Stability data for DISKUS ® 100/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH with overwrap for 14 months








Packed Batch Number: B
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 Weeks
1 Month
1.5 Months





Particle Size Distribution by Cascade
 7 to 13
12, 11
12, 12
11, 12
11, 12


Impaction Salmeterol Sum of stages

11, 11
11, 11
11, 12
11, 12


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
6, 5
6, 6
5, 6
5, 6


Impaction Salmeterol Sum of stages

6, 5
5, 5
6, 6
5, 6


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
36, 36
35, 34
34, 35
32, 34


Impaction Salmeterol Sum of stages

31, 35
33, 34
29, 33
34, 36


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.0, 0.1
0.1, 0.1
0.1, 0.1


Impaction Salmeterol Sum of stages

0.1, 0.1
0.1, 0.1
0.1, 0.1
0.1, 0.1


6, 7 & F (μg per blister)


Individual
















TABLE 50







Stability data for DISKUS ® 100/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH with overwrap for 14 months








Packed Batch Number: B
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 Weeks
1 Month
1.5 Months





Particle Size Distribution by Cascade
15 to 30
27, 27
28, 29
26, 29
25, 28


Impaction Fluticasone Propionate

27, 26
26, 27
28, 28
26, 29


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
 6 to 18
14, 13
13, 14
13, 14
12, 13


Impaction Fluticasone Propionate

14, 13
13, 13
13, 14
12, 14


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
55 to 80
68, 69
68, 66
64, 68
62, 67


Impaction Fluticasone Propionate

59, 68
64, 66
56, 65
67, 70


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 1
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 51







Stability data for DISKUS ® 100/50 μg 60 Dose Product with overwrap








Packed Batch Number: C
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
 7 to 13
16, 14
13, 12
12, 12
12, 12


Impaction Salmeterol Sum of stages

14, 15
12, 12
12, 12
13, 12


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
9, 8
7, 6
6, 6
6, 7


Impaction Salmeterol Sum of stages

8, 8
6, 6
6, 6
6, 7


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
33, 33
33, 34
34, 35
34, 32


Impaction Salmeterol Sum of stages

32, 34
34, 34
34, 35
34, 34


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.2, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.2
0.1, 0.1
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 52







Stability data for DISKUS ® 100/50 μg 60 Dose Product with overwrap








Packed Batch Number: C
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 months
12 months
15 months





Particle Size Distribution by Cascade
 7 to 13
16, 14
12, 11
12, 12
12, 12


Impaction Salmeterol Sum of stages

14, 15
11, 11
13, 12
12, 11


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
9, 8
6, 6
6, 6
6, 6


Impaction Salmeterol Sum of stages

8, 8
5, 6
6, 6
6, 6


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
33, 33
32, 33
36, 37
34, 33


Impaction Salmeterol Sum of stages

32, 34
32, 33
34, 30
33, 33


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.2, 0.1
0.0, 0.0
0.1, 0.1
0.1, 0.1


Impaction Salmeterol Sum of stages

0.1, 0.2
0.0, 0.1
0.1, 0.1
0.1, 0.1


6, 7 & F (μg per blister)


Individual
















TABLE 53







Stability data for DISKUS ® 100/50 μg 60 Dose Product with overwrap








Packed Batch Number: C
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
17 to 30
36, 32
29, 28
28, 28
29, 29


Impaction Fluticasone Propionate

33, 35
29, 28
28, 28
30, 30


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
 9 to 19
20, 18
15, 14
14, 14
14, 16


Impaction Fluticasone Propionate

17, 20
14, 14
14, 14
15, 15


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
55 to 80
59, 61
64, 63
64, 66
65, 63


Impaction Fluticasone Propionate

59, 62
63, 64
65, 66
67, 65


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 1
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 54







Stability data for DISKUS ® 100/50 μg 60 Dose Product with overwrap








Packed Batch Number: C
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 months
12 months
15 months





Particle Size Distribution by Cascade
17 to 30
36, 32
28, 26
28, 28
28, 28


Impaction Fluticasone Propionate

33, 35
25, 27
29, 29
27, 27


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
 9 to 19
20, 18
14, 13
14, 15
13, 14


Impaction Fluticasone Propionate

17, 20
12, 13
15, 15
13, 13


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
55 to 80
59, 61
61, 62
67, 71
65, 64


Impaction Fluticasone Propionate

59, 62
64, 64
65, 59
63, 64


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 1
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 55







Stability data for DISKUS ® 100/50 μg 60 Dose Product without overwrap








Packed Batch Number: C
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
 7 to 13
16, 14
14, 13
12, 12
13, 13
12, 12


Impaction Salmeterol Sum of stages

14, 15
13, 13
12, 13
13, 14
12, 13


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
9, 8
8, 7
7, 7
7, 7
6, 6


Impaction Salmeterol Sum of stages

8, 8
7, 7
7, 7
7, 7
6, 6


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
33, 33
34, 35
34, 34
33, 32
35, 34


Impaction Salmeterol Sum of stages

32, 34
34, 34
35, 35
35, 34
34, 34


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.2, 0.1
0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.2
0.1, 0.2
0.1, 0.1
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 56







Stability data for DISKUS ® 100/50 μg 60 Dose Product without overwrap








Packed Batch Number: C
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
17 to 30
36, 32
33, 31
29, 29
31, 29
28, 27


Impaction Fluticasone Propionate

33, 35
31, 30
28, 30
31, 32
28, 29


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
 9 to 19
20, 18
17, 16
15, 16
16, 15
13, 13


Impaction Fluticasone Propionate

17, 20
16, 16
15, 16
16, 17
14, 15


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
55 to 80
59, 61
64, 65
65, 64
62, 60
65, 70


Impaction Fluticasone Propionate

59, 62
63, 63
67, 66
65, 68
64, 66


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 1
0, 0
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 57







Stability data for DISKUS ® 100/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH with overwrap for 14 months








Packed Batch Number: C
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 Weeks
1 Month
1.5 Months





Particle Size Distribution by Cascade
7 to 13
12, 12
12, 12
11, 12
12, 11


Impaction Salmeterol Sum of stages

11, 16
12, 12
12, 12
11, 12


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
6, 6
6, 6
5, 6
6, 5


Impaction Salmeterol Sum of stages

5, 7
6, 6
6, 6
5, 6


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
34, 35
34, 35
33, 33
34, 35


Impaction Salmeterol Sum of stages

32, 34
32, 34
33, 33
35, 35


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.1, 0.1
0.1, 0.0
0.1, 0.1


Impaction Salmeterol Sum of stages

0.1, 0.1
0.1, 0.1
0.1, 0.0
0.1, 0.1


6, 7 & F (μg per blister)


Individual
















TABLE 58







Stability data for DISKUS ® 100/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH with overwrap for 14 months








Packed Batch Number: C
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 Weeks
1 Month
1.5 Months





Particle Size Distribution by Cascade
15 to 30
29, 28
27, 29
26, 27
28, 27


Impaction Fluticasone Propionate

27, 30
28, 27
28, 28
25, 27


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
 6 to 18
15, 14
13, 14
13, 13
14, 13


Impaction Fluticasone Propionate

13, 15
15, 14
14, 13
12, 13


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
55 to 80
68, 66
67, 67
61, 64
66, 66


Impaction Fluticasone Propionate

63, 66
65, 64
64, 64
68, 66


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 1
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 59







Stability data for DISKUS ® 100/50 μg 60 Dose Product with overwrap








Packed Batch Number: D
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
 7 to 13
12, 11
11, 10
10, 10
 9, 10


Impaction Salmeterol Sum of stages

12, 11
10, 11
10, 9 
 9, 10


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
6, 6
5, 5
5, 5
5, 5


Impaction Salmeterol Sum of stages

6, 6
5, 6
5, 5
4, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
36, 36
36, 38
38, 38
37, 37


Impaction Salmeterol Sum of stages

36, 36
36, 35
38, 37
35, 38


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual





Note:


NGT = Not Greater Than













TABLE 60







Stability data for DISKUS ® 100/50 μg 60 Dose Product with overwrap








Packed Batch Number: D
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 months
12 months
15 months





Particle Size Distribution by Cascade
 7 to 13
12, 11
10, 9 
9, 9
9, 9


Impaction Salmeterol Sum of stages

12, 11
10, 10
10, 9 
9, 8


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
6, 6
5, 4
4, 4
4, 4


Impaction Salmeterol Sum of stages

6, 6
5, 5
4, 3
4, 3


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
36, 36
36, 37
39, 38
37, 35


Impaction Salmeterol Sum of stages

36, 36
37, 37
39, 39
37, 36


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.0, 0.0
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.1
0.0, 0.0
0.1, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 61







Stability data for DISKUS ® 100/50 μg 60 Dose Product with overwrap








Packed Batch Number: D
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
15 to 30
28, 26
26, 25
24, 24
22, 24


Impaction Fluticasone Propionate

28, 26
23, 25
24, 23
21, 23


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
 6 to 18
15, 14
13, 12
12, 12
11, 11


Impaction Fluticasone Propionate

15, 14
12, 13
12, 11
 9, 11


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
55 to 80
68, 68
70, 72
73, 74
71, 72


Impaction Fluticasone Propionate

68, 69
70, 66
73, 71
68, 74


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 1
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 62







Stability data for DISKUS ® 100/50 μg 60 Dose Product with overwrap








Packed Batch Number: D
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 months
12 months
15 months





Particle Size Distribution by Cascade
15 to 30
28, 26
24, 22
20, 20
21, 21


Impaction Fluticasone Propionate

28, 26
23, 23
23, 20
21, 19


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
 6 to 18
15, 14
11, 10
8, 9
10, 9 


Impaction Fluticasone Propionate

15, 14
12, 11
10, 8 
9, 8


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
55 to 80
68, 68
71, 71
74, 73
72, 69


Impaction Fluticasone Propionate

68, 69
73, 71
76, 76
73, 71


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 1
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 63







Stability data for DISKUS ® 100/50 μg 60 Dose Product without overwrap








Packed Batch Number: D
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
 7 to 13
12, 11
10, 11
11, 11
11, 10
10, 9 


Impaction Salmeterol Sum of stages

12, 11
11, 11
11, 11
11, 11
9, 9


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
6, 6
5, 6
6, 6
6, 5
5, 5


Impaction Salmeterol Sum of stages

6, 6
5, 5
6, 5
6, 6
5, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
36, 36
36, 36
37, 36
35, 32
39, 38


Impaction Salmeterol Sum of stages

36, 36
37, 38
37, 35
33, 36
37, 37


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.1
0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 64







Stability data for DISKUS ® 100/50 μg 60 Dose Product without overwrap








Packed Batch Number: D
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
17 to 30
28, 26
24, 26
26, 26
25, 25
23, 22


Impaction Fluticasone Propionate

28, 26
25, 25
27, 25
25, 26
22, 23


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
 9 to 19
15, 14
12, 14
14, 14
13, 13
12, 11


Impaction Fluticasone Propionate

15, 14
13, 13
14, 13
14, 14
11, 11


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
55 to 80
68, 68
69, 69
71, 69
68, 62
75, 74


Impaction Fluticasone Propionate

68, 69
71, 71
71, 67
67, 69
72, 71


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 1
0, 0
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 65







Stability data for DISKUS ® 100/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH with overwrap for 14 months








Packed Batch Number: D
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
0.5 Months
1 Month
1.5 Months





Particle Size Distribution by Cascade
 7 to 13
 9, 10
 9, 10
 9, 10
8, 9


Impaction Salmeterol Sum of stages

10, 9 
10, 9 
9, 8
9, 9


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
4, 5
4, 5
4, 5
4, 4


Impaction Salmeterol Sum of stages

5, 5
4, 4
4, 3
4, 4


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
35, 37
39, 38
37, 38
32, 38


Impaction Salmeterol Sum of stages

37, 36
38, 38
36, 36
34, 37


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.1, 0.1
0.0, 0.1
0.1, 0.1


Impaction Salmeterol Sum of stages

0.1, 0.1
0.1, 0.1
0.1, 0.0
0.1, 0.1


6, 7 & F (μg per blister)


Individual
















TABLE 66







Stability data for DISKUS ® 100/50 μg 60 Dose Product without overwrap (Cont'd)


Samples previously stored at 25° C./60% RH with overwrap for 14 months








Packed Batch Number: D
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
0.5 Months
1 Month
1.5 Months





Particle Size Distribution by Cascade
15 to 30
22, 23
22, 24
21, 23
21, 22


Impaction Fluticasone Propionate

23, 22
23, 23
22, 20
21, 21


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
 6 to 18
10, 11
10, 11
9, 11
9, 10


Impaction Fluticasone Propionate

11, 11
11, 10
10, 8
10, 9


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
55 to 80
68, 72
76, 76
72, 73
65, 74


Impaction Fluticasone Propionate

72, 71
75, 74
70, 70
66, 73


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 1
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 67







Stability data for DISKUS ® 250/50 μg 60 Dose Product with overwrap








Packed Batch Number: E
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 month
3 months
6 months





Particle Size Distribution by Cascade
 7 to 13
12, 11
11, 11
10, 10
10, 8


Impaction Salmeterol Sum of stages

12, 12
10, 11
11, 11
9, 9


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
7, 6
6, 5
5, 6
5, 4


Impaction Salmeterol Sum of stages

7, 7
5, 6
6, 6
5, 4


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
33, 32
36, 37
35, 34
37, 35


Impaction Salmeterol Sum of stages

34, 34
36, 36
35, 36
33, 35


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages


6, 7 & F (μg per blister)

0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


Individual
















TABLE 68







Stability data for DISKUS ® 250/50 μg 60 Dose Product with overwrap








Packed Batch Number: E
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 months
12 months
18 months





Particle Size Distribution by Cascade
 7 to 13
12, 11
10, 10
11, 10
10, 9


Impaction Salmeterol Sum of stages

12, 12
9, 11
10, 11
9, 9


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
7, 6
5, 5
5, 5
5, 4


Impaction Salmeterol Sum of stages

7, 7
5, 6
5, 5
4, 4


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
33, 32
36, 35
37, 35
36, 34


Impaction Salmeterol Sum of stages

34, 34
33, 36
34, 37
34, 36


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.0, 0.0
0.1, 0.1
0.1, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.1
0.0, 0.0
0.1, 0.1
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 69







Stability data for DISKUS ® 250/50 μg 60 Dose Product with overwrap








Packed Batch Number: E
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 month
3 months
6 months





Particle Size Distribution by Cascade
42 to 73
66, 61
62, 61
55, 59
58, 48


Impaction Fluticasone Propionate

67, 69
59, 62
63, 63
54, 51


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
19 to 45
39, 34
32, 31
29, 32
29, 22


Impaction Fluticasone Propionate

39, 41
30, 32
34, 34
27, 26


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
140 to 200
159, 154
173, 177
169, 165
181, 171


Impaction Fluticasone Propionate

161, 161
170, 174
169, 173
163, 168


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
<2
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 70







Stability data for DISKUS ® 250/50 μg 60 Dose Product with overwrap








Packed Batch Number: E
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 months
12 months
18 months





Particle Size Distribution by Cascade
42 to 73
66, 61
60, 55
64, 57
56, 50


Impaction Fluticasone Propionate

67, 69
54, 62
55, 61
54, 54


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
19 to 45
39, 34
30, 27
31, 28
26, 23


Impaction Fluticasone Propionate

39, 41
28, 32
27, 29
25, 24


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade


Impaction Fluticasone Propionate
140 to 200
159, 154
177, 169
176, 179
174, 165


Sum of stages TP0 (μg per blister)

161, 161
162, 173
167, 180
178, 177


Individual


Particle Size Distribution by Cascade
<2
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 71







Stability data for DISKUS ® 250/50 μg 60 Dose Product without overwrap








Packed Batch Number: E
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 month
1.5 months
3 months





Particle Size Distribution by Cascade
 7 to 13
12, 11
12, 14
11, 11
12, 11
10, 10


Impaction Salmeterol Sum of stages

12, 12
11, 12
10, 11
11, 11
10, 10


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
7, 6
6, 8
5, 6
7, 6
5, 5


Impaction Salmeterol Sum of stages

7, 7
6, 6
5, 6
6, 6
5, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
33, 32
35, 44
35, 36
36, 34
37, 36


Impaction Salmeterol Sum of stages

34, 34
34, 36
35, 36
36, 35
36, 37


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.0, 0.0
0.0, 0.0
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.1
0.0, 0.0
0.0, 0.0
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 72







Stability data for DISKUS ® 250/50 μg 60 Dose Product without overwrap








Packed Batch Number: E
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 month
1.5 months
3 months





Particle Size Distribution by Cascade
42 to 73
66, 61
64, 77
61, 63
68, 65
59, 57


Impaction Fluticasone Propionate

67, 69
61, 65
58, 64
63, 64
58, 55


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
19 to 45
39, 34
35, 44
31, 33
38, 36
31, 30


Impaction Fluticasone Propionate

39, 41
34, 36
30, 33
35, 35
29, 28


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
140 to 200
159, 154
159, 188
166, 172
172, 162
177, 174


Impaction Fluticasone Propionate

161, 161
162, 165
170, 175
170, 168
176, 177


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
<2
0, 0
0, 1
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 73







Stability data for DISKUS ® 250/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH for 17 months with overwrap








Packed Batch Number: E
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 Weeks
1 month
1.5 months





Particle Size Distribution by Cascade
 7 to 13
10, 10
10, 10
(a)
10, 10


Impaction Salmeterol Sum of stages

9, 9
10, 10
10
9, 10


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
5, 5
5, 5
(a)
5, 5


Impaction Salmeterol Sum of stages

4, 4
5, 5
4
4, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
35, 37
35, 37
(a)
35, 36


Impaction Salmeterol Sum of stages

36, 36
37, 35
36
35, 37


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.0, 0.1
(a)
0.1, 0.1


Impaction Salmeterol Sum of stages

0.1, 0.1
0.1, 0.1
0.0
0.1, 0.1


6, 7 & F (μg per blister)


Individual
















TABLE 74







Stability data for DISKUS ® 250/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH for 17 months with overwrap (cont'd)








Packed Batch Number: E
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 Weeks
1 month
1.5 months





Particle Size Distribution by Cascade
42 to 73
57, 56
58, 56
(a)
55, 57


Impaction Fluticasone Propionate

54, 54
57, 55
57
52, 55


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
19 to 45
29, 26
27, 26
(a)
28, 30


Impaction Fluticasone Propionate


Sum of stages 3-4 (μg per blister)

25, 25
27, 26
25
25, 27


Individual


Particle Size Distribution by Cascade
140 to 200
170, 182
171, 178
(a)
171, 178


Impaction Fluticasone Propionate

176, 175
178, 168
182
174, 184


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
<2
0, 0
0, 0
(a)
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 75







Stability data for DISKUS ® 250/50 μg 60 Dose Product with overwrap








Packed Batch Number: F
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
 7 to 13
13, 12
12, 11
11, 11
11, 9


Impaction Salmeterol Sum of stages

13, 12
11, 11
11, 11
10, 10


1-5 (μg per blister)

12, 12


Individual


Particle Size Distribution by Cascade
3 to 8
8, 7
7, 7
6, 6
5, 4


Impaction Salmeterol Sum of stages

7, 7
6, 6
6, 6
5, 5


3-4 (μg per blister)

7, 7


Individual


Particle Size Distribution by Cascade
28 to 42
36, 35
36, 35
35, 35
36, 34


Impaction Salmeterol Sum of stages

36, 35
36, 35
33, 31
36, 37


TP0 (μg per blister)

36, 33


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.1, 0.1
0.0, 0.1
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.1
0.1, 0.1
0.1, 0.0
0.0, 0.0


6, 7 & F (μg per blister)

0.1, 0.1


Individual
















TABLE 76







Stability data for DISKUS ® 250/50 μg 60 Dose Product with overwrap








Packed Batch Number: F
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 Months
12 Months
18 Months





Particle Size Distribution by Cascade
 7 to 13
13, 12
11, 11
9, 10
9, 10


Impaction Salmeterol Sum of stages

13, 12
11, 12
9, 10
10, 10


1-5 (μg per blister)

12, 12


Individual


Particle Size Distribution by Cascade
3 to 8
8, 7
6, 6
4, 4
4, 5


Impaction Salmeterol Sum of stages

7, 7
5, 6
4, 5
5, 5


3-4 (μg per blister)

7, 7


Individual


Particle Size Distribution by Cascade


Impaction Salmeterol Sum of stages
28 to 42
36, 35
34, 36
35, 37
37, 35


TP0 (μg per blister)

36, 35
36, 36
36, 38
35, 34


Individual

36, 33


Particle Size Distribution by Cascade


Impaction Salmeterol Sum of stages
NGT 0.5
0.1, 0.1
0.0, 0.0
0.0, 0.0
0.1, 0.1


6, 7 & F (μg per blister)

0.1, 0.1
0.0, 0.0
0.0, 0.0
0.1, 0.1


Individual

0.1, 0.1
















TABLE 77







Stability data for DISKUS ® 250/50 μg 60 Dose Product with overwrap








Packed Batch Number: F
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
42 to 73
76, 70
67, 65
63, 61
62, 53


Impaction Fluticasone Propionate

73, 70
62, 61
64, 63
61, 58


Sum of stages 1-5 (μg per blister)

68, 72


Individual


Particle Size Distribution by Cascade
19 to 45
46, 40
39, 39
34, 33
32, 26


Impaction Fluticasone Propionate

43, 42
36, 35
36, 34
31, 28


Sum of stages 3-4 (μg per blister)

39, 41


Individual


Particle Size Distribution by Cascade
140 to 200
173, 170
176, 169
170, 171
175, 166


Impaction Fluticasone Propionate

170, 168
172, 172
163, 154
177, 180


Sum of stages TP0 (μg per blister)

174, 159


Individual


Particle Size Distribution by Cascade
<2
1, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

1, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)

0, 0


Individual
















TABLE 78







Stability data for DISKUS ® 250/50 μg 60 Dose Product with overwrap








Packed Batch Number: F
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 Months
12 Months
18 Months





Particle Size Distribution by Cascade
42 to 73
76, 70
65, 65
50, 55
54, 55


Impaction Fluticasone Propionate

73, 70
63, 68
51, 59
55, 57


Sum of stages 1-5 (μg per blister)

68, 72


Individual


Particle Size Distribution by Cascade
19 to 45
46, 40
33, 33
22, 26
25, 27


Impaction Fluticasone Propionate

43, 42
31, 35
24, 27
27, 28


Sum of stages 3-4 (μg per blister)

39, 41


Individual


Particle Size Distribution by Cascade
140 to 200
173, 170
166, 178
172, 180
180, 170


Impaction Fluticasone Propionate

170, 168
175, 175
180, 187
172, 167


Sum of stages TP0 (μg per blister)

174, 159


Individual


Particle Size Distribution by Cascade
<2
1, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

1, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)

0, 0


Individual
















TABLE 79







Stability data for DISKUS ® 250/50 μg 60 Dose Product without overwrap








Packed Batch Number: F
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
 7 to 13
13, 12
11, 12
11, 11
10, 12
 9, 10


Impaction Salmeterol Sum of stages

13, 12
11, 11
12, 11
11, 12
10, 11


1-5 (μg per blister)

12, 12


Individual


Particle Size Distribution by Cascade
3 to 8
8, 7
7, 7
6, 6
5, 6
5, 5


Impaction Salmeterol Sum of stages

7, 7
7, 7
7, 6
6, 6
5, 6


3-4 (μg per blister)

7, 7


Individual


Particle Size Distribution by Cascade
28 to 42
36, 35
36, 36
36, 36
32, 36
37, 37


Impaction Salmeterol Sum of stages

36, 35
36, 36
35, 39
37, 36
36, 37


TP0 (μg per blister)

36, 33


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.1
0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)

0.1, 0.1


Individual
















TABLE 80







Stability data for DISKUS ® 250/50 μg 60 Dose Product without overwrap








Packed Batch Number: F
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
42 to 73
76, 70
65, 67
65, 64
59, 68
53, 60


Impaction Fluticasone Propionate

73, 70
65, 65
66, 65
65, 67
59, 62


Sum of stages 1-5 (μg per blister)

68, 72


Individual


Particle Size Distribution by Cascade
19 to 45
46, 40
38, 39
37, 37
31, 37
26, 31


Impaction Fluticasone Propionate

43, 42
37, 39
40, 35
35, 37
30, 33


Sum of stages 3-4 (μg per blister)

39, 41


Individual


Particle Size Distribution by Cascade
140 to 200
173, 170
174, 173
175, 174
152, 175
178, 180


Impaction Fluticasone Propionate

170, 168
172, 171
168, 188
178, 173
176, 179


Sum of stages TP0 (μg per blister)

174, 159


Individual


Particle Size Distribution by Cascade
<2
1, 0
0, 0
1, 0
0, 0
0, 0


Impaction Fluticasone Propionate

1, 0
0, 0
1, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)

0, 0


Individual
















TABLE 81







Stability data for DISKUS ® 250/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH for 17 months with overwrap








Packed Batch Number: F
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 Weeks
1 Month
1.5 Months





Particle Size Distribution by Cascade
 7 to 13
10, 10
10, 10
10, 10
10, 10


Impaction Salmeterol Sum of stages

 9, 10
10, 10
10, 10
10, 10


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
5, 5
5, 5
5, 5
5, 5


Impaction Salmeterol Sum of stages

5, 5
5, 5
5, 5
5, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
36, 36
38, 37
37, 38
37, 37


Impaction Salmeterol Sum of stages

34, 36
36, 37
35, 38
34, 36


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.0
0.1, 0.1
0.0, 0.0
0.1, 0.1


Impaction Salmeterol Sum of stages

0.1, 0.1
0.1, 0.1
0.1, 0.0
0.1, 0.1


6, 7 & F (μg per blister)


Individual
















TABLE 82







Stability data for DISKUS ® 250/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH for 17 months with overwrap (cont'd)








Packed Batch Number: F
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 Weeks
1 Month
1.5 Months





Particle Size Distribution by Cascade
42 to 73
59, 57
55, 56
59, 58
55, 60


Impaction Fluticasone Propionate

53, 59
55, 57
58, 59
57, 61


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
19 to 45
30, 29
26, 28
28, 27
28, 30


Impaction Fluticasone Propionate

27, 31
27, 28
29, 29
28, 30


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
140 to 200
177, 180
185, 183
183, 187
180, 182


Impaction Fluticasone Propionate

169, 180
179, 186
174, 184
170, 181


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
<2
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 83







Stability data for DISKUS ® 250/50 μg 60 Dose Product with overwrap








Packed Batch Number: G
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
 7 to 13
15, 15
13, 12
13, 13
10, 12


Impaction Salmeterol Sum of stages

15, 16
12, 13
12, 14
11, 12


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
9, 9
7, 7
7, 7
5, 6


Impaction Salmeterol Sum of stages

9, 9
7, 8
6, 7
6, 6


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
32, 33
32, 33
33, 36
30, 34


Impaction Salmeterol Sum of stages

34, 35
32, 32
33, 35
31, 33


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.2
0.1, 0.1
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 84







Stability data for DISKUS ® 250/50 μg 60 Dose Product with overwrap








Packed Batch Number: G
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 months
12 months
18 months





Particle Size Distribution by Cascade
 7 to 13
15, 15
12, 12
13, 14
11, 11


Impaction Salmeterol Sum of stages

15, 16
11, 11
13, 14
11, 11


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
9, 9
6, 7
7, 7
6, 6


Impaction Salmeterol Sum of stages

9, 9
6, 6
7, 7
6, 6


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
32, 33
33, 32
33, 34
33, 33


Impaction Salmeterol Sum of stages

34, 35
32, 33
34, 33
32, 34


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.0, 0.0
0.1, 0.1
0.1, 0.1


Impaction Salmeterol Sum of stages

0.1, 0.2
0.0, 0.0
0.1, 0.1
0.1, 0.1


6, 7 & F (μg per blister)


Individual
















TABLE 85







Stability data for DISKUS ® 250/50 μg 60 Dose Product with overwrap








Packed Batch Number: G
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
42 to 73
87, 86
72, 68
77, 74
57, 69


Impaction Fluticasone Propionate

88, 92
70, 74
70, 78
66, 72


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
19 to 45
52, 48
42, 38
43, 40
29, 35


Impaction Fluticasone Propionate

53, 54
41, 44
37, 42
36, 37


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
140 to 200
152, 157
153, 158
160, 174
150, 166


Impaction Fluticasone Propionate

159, 165
150, 150
157, 168
150, 161


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
<2
1, 1
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

1, 1
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 86







Stability data for DISKUS ® 250/50 μg 60 Dose Product with overwrap








Packed Batch Number: G
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 months
12 months
18 months





Particle Size Distribution by Cascade
42 to 73
87, 86
70, 70
75, 77
66, 66


Impaction Fluticasone Propionate

88, 92
63, 65
73, 75
65, 66


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
19 to 45
52, 48
37, 38
39, 42
33, 34


Impaction Fluticasone Propionate

53, 54
32, 33
38, 40
33, 33


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
140 to 200
152, 157
157, 152
160, 163
161, 164


Impaction Fluticasone Propionate

159, 165
155, 159
165, 162
158, 168


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
<2
1, 1
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

1, 1
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 87







Stability data for DISKUS ® 250/50 μg 60 Dose Product without overwrap








Packed Batch Number: G
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
 7 to 13
15, 15
13, 14
12, 13
14, 12
13, 11


Impaction Salmeterol Sum of stages

15, 16
14, 13
12, 12
12, 12
11, 13


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
9, 9
6, 8
7, 7
8, 7
7, 6


Impaction Salmeterol Sum of stages

9, 9
8, 7
7, 6
6, 7
6, 7


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
32, 33
32, 33
32, 33
34, 32
32, 31


Impaction Salmeterol Sum of stages

34, 35
35, 34
32, 33
32, 33
31, 33


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.2
0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 88







Stability data for DISKUS ® 250/50 μg 60 Dose Product without overwrap








Packed Batch Number: G
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
42 to 73
87, 86
72, 82
67, 72
78, 70
76, 66


Impaction Fluticasone Propionate

88, 92
81, 76
70, 68
68, 72
66, 73


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
19 to 45
52, 48
37, 46
38, 41
44, 40
42, 36


Impaction Fluticasone Propionate

53, 54
45, 41
40, 37
35, 38
33, 40


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
140 to 200
152, 157
155, 156
155, 157
163, 152
156, 149


Impaction Fluticasone Propionate

159, 165
165, 160
155, 161
156, 160
149, 160


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
<2
1, 1
0, 1
1, 0
0, 0
0, 0


Impaction Fluticasone Propionate

1, 1
1, 1
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 89







Stability data for DISKUS ® 250/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH for 17 months with overwrap








Packed Batch Number: G
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 Weeks
1 Month
1.5 Months





Particle Size Distribution by Cascade
 7 to 13
12, 12
11, 11
13, 12
11, 11


Impaction Salmeterol Sum of stages

11, 11
12, 10
12, 11
10, 10


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
6, 6
6, 5
7, 6
6, 6


Impaction Salmeterol Sum of stages

5, 5
6, 5
6, 6
4, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
33, 34
33, 33
34, 33
33, 32


Impaction Salmeterol Sum of stages

33, 32
34, 32
34, 32
33, 34


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.1, 0.1
0.1, 0.1
0.1, 0.1


Impaction Salmeterol Sum of stages

0.1, 0.1
0.1, 0.1
0.1, 0.1
0.1, 0.1


6, 7 & F (μg per blister)


Individual
















TABLE 90







Stability data for DISKUS ® 250/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH for 17 months with overwrap (cont'd)








Packed Batch Number: G
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 weeks
1 Month
1.5 Months





Particle Size Distribution by Cascade
42 to 73
71, 69
65, 63
73, 71
66, 62


Impaction Fluticasone Propionate

62, 62
67, 61
68, 65
58, 61


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
19 to 45
35, 33
33, 30
39, 37
36, 32


Impaction Fluticasone Propionate

28, 29
32, 30
36, 33
26, 31


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
140 to 200
160, 166
156, 158
167, 161
162, 158


Impaction Fluticasone Propionate

161, 154
165, 155
165, 157
163, 166


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
<2
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 91







Stability data for DISKUS ® 250/50 μg 60 Dose Product with overwrap








Packed Batch Number: H
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
 7 to 13
11, 10
10, 10
10, 9 
9, 9


Impaction Salmeterol Sum of stages

12, 11
11, 10
10, 10
9, 9


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
6, 6
6, 6
5, 5
5, 5


Impaction Salmeterol Sum of stages

7, 6
6, 6
5, 5
5, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
38, 36
38, 37
39, 38
38, 37


Impaction Salmeterol Sum of stages

37, 36
39, 38
38, 38
39, 37


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.0, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 92







Stability data for DISKUS ® 250/50 μg 60 Dose Product with overwrap








Packed Batch Number: H
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 months
12 months
18 months





Particle Size Distribution by Cascade
 7 to 13
11, 10
9, 10
10, 10
10, 9 


Impaction Salmeterol Sum of stages

12, 11
10, 10
10, 10
9, 9


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
6, 6
5, 5
5, 5
5, 4


Impaction Salmeterol Sum of stages

7, 6
5, 5
5, 5
4, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
38, 36
38, 36
38, 37
39, 37


Impaction Salmeterol Sum of stages

37, 36
35, 35
38, 38
39, 33


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.0, 0.1
0.0, 0.0
0.1, 0.1
0.1, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.1
0.0, 0.0
0.1, 0.1
0.1, 0.1


6, 7 & F (μg per blister)


Individual
















TABLE 93







Stability data for DISKUS ® 250/50 μg 60 Dose Product with overwrap








Packed Batch Number: H
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
42 to 73
61, 59
57, 56
57, 55
53, 53


Impaction Fluticasone Propionate

66, 62
61, 58
59, 57
55, 54


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
19 to 45
35, 34
32, 32
30, 28
29, 28


Impaction Fluticasone Propionate

39, 34
34, 32
31, 29
28, 27


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
140 to 200
181, 170
182, 180
185, 181
181, 179


Impaction Fluticasone Propionate

175, 172
188, 185
181, 181
189, 181


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
<2
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

1, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 94







Stability data for DISKUS ® 250/50 μg 60 Dose Product with overwrap








Packed Batch Number: H
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 months
12 months
18 months





Particle Size Distribution by Cascade
42 to 73
61, 59
55, 56
60, 61
55, 51


Impaction Fluticasone Propionate

66, 62
56, 58
60, 59
50, 51


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
19 to 45
35, 34
27, 28
31, 32
27, 26


Impaction Fluticasone Propionate

39, 34
29, 30
31, 31
24, 27


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
140 to 200
181, 170
182, 177
188, 182
188, 183


Impaction Fluticasone Propionate

175, 172
172, 171
183, 183
193, 163


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
<2
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

1, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 95







Stability data for DISKUS ® 250/50 μg 60 Dose Product without overwrap








Packed Batch Number: H
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
 7 to 13
11, 10
10, 10
10, 11
9, 9
9, 9


Impaction Salmeterol Sum of stages

12, 11
10, 10
11, 10
10, 10
10, 9 


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
6, 6
6, 6
5, 6
5, 5
4, 5


Impaction Salmeterol Sum of stages

7, 6
6, 6
6, 5
5, 5
5, 4


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
38, 36
37, 35
36, 37
36, 37
39, 38


Impaction Salmeterol Sum of stages

37, 36
36, 37
38, 37
38, 38
39, 37


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.0, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 96







Stability data for DISKUS ® 250/50 μg 60 Dose Product without overwrap








Packed Batch Number: H
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
42 to 73
61, 59
59, 58
61, 61
54, 54
54, 54


Impaction Fluticasone Propionate

66, 62
59, 58
61, 59
57, 55
59, 53


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
19 to 45
35, 34
33, 34
32, 33
28, 28
26, 27


Impaction Fluticasone Propionate

39, 34
36, 34
32, 32
30, 29
31, 26


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
140 to 200
181, 170
180, 170
169, 175
175, 179
189, 185


Impaction Fluticasone Propionate

175, 172
172, 177
180, 175
183, 182
189, 181


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
<2
0, 0
0, 1
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

1, 0
1, 0
0, 0
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 97







Stability data for DISKUS ® 250/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH for 17 months with overwrap








Packed Batch Number: H
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 Weeks
1 Month
1.5 Months





Particle Size Distribution by Cascade
 7 to 13
9, 9
9, 9
10, 10
 9, 10


Impaction Salmeterol Sum of stages

10, 9 
9, 9
 9, 10
9, 9


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
3 to 8
5, 5
5, 4
5, 5
4, 5


Impaction Salmeterol Sum of stages

5, 4
4, 5
5, 5
4, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
37, 37
38, 38
36, 36
37, 38


Impaction Salmeterol Sum of stages

36, 37
38, 37
37, 36
35, 36


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.1, 0.1
0.1, 0.1
0.1, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.1
0.1, 0.1
0.0, 0.1
0.2, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 98







Stability data for DISKUS ® 250/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH for 17 months with overwrap (cont'd)








Packed Batch Number: H
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 weeks
1 Month
1.5 Months





Particle Size Distribution by Cascade
42 to 73
55, 54
54, 53
56, 55
51, 56


Impaction Fluticasone Propionate

57, 55
51, 53
55, 57
51, 55


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
19 to 45
27, 27
27, 26
29, 28
26, 28


Impaction Fluticasone Propionate

28, 26
24, 27
27, 28
23, 27


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
140 to 200
179, 184
184, 184
177, 179
178, 184


Impaction Fluticasone Propionate

178, 183
188, 183
183, 178
175, 191


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
<2
0, 0
0, 0
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
1, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 99







Stability data for DISKUS ® 500/50 μg 60 Dose Product with overwrap








Packed Batch Number: I
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
 7 to 13
11, 12
11, 11
10, 10
10, 10


Impaction Salmeterol Sum of stages

12, 11
11, 10
10, 10
 9, 10


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
7, 7
6, 6
5, 5
5, 5


Impaction Salmeterol Sum of stages

7, 7
6, 6
6, 6
5, 6


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
34, 35
31, 36
36, 35
33, 36


Impaction Salmeterol Sum of stages

35, 33
33, 34
36, 36
33, 33


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.0, 0.0
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.1
0.0, 0.0
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 100







Stability data for DISKUS ® 500/50 μg 60 Dose Product with overwrap








Packed Batch Number: I
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 Months
12 Months
18 Months





Particle Size Distribution by Cascade
 7 to 13
11, 12
10, 10
10, 9 
9, 9


Impaction Salmeterol Sum of stages

12, 11
10, 10
8, 9
9, 9


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
7, 7
5, 5
5, 4
5, 4


Impaction Salmeterol Sum of stages

7, 7
5, 6
4, 4
5, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
34, 35
35, 34
37, 34
36, 34


Impaction Salmeterol Sum of stages

35, 33
37, 37
32, 36
34, 35


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.1, 0.0
0.0, 0.0
0.0, 0.1


Impaction Salmeterol Sum of stages

0.1, 0.1
0.0, 0.0
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 101







Stability data for DISKUS ® 500/50 μg 60 Dose Product with overwrap








Packed Batch Number: I
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
 96 to 150
127, 130
119, 122
112, 111
110, 114


Impaction Fluticasone Propionate

129, 125
121, 112
117, 116
105, 116


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
43 to 92
75, 76
70, 71
60, 59
60, 61


Impaction Fluticasone Propionate

77, 75
71, 62
64, 64
55, 63


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
290 to 400
325, 339
301, 354
349, 346
326, 346


Impaction Fluticasone Propionate

337, 322
326, 333
350, 349
325, 319


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 2
1, 1
1, 1
1, 0
1, 1


Impaction Fluticasone Propionate

1, 1
1, 1
1, 1
1, 1


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 102







Stability data for DISKUS ® 500/50 μg 60 Dose Product with overwrap








Packed Batch Number: I
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 Months
12 Months
18 Months





Particle Size Distribution by Cascade
 96 to 150
127, 130
110, 110
110, 96 
100, 95 


Impaction Fluticasone Propionate

129, 125
109, 114
91, 99
106, 104


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
43 to 92
75, 76
59, 60
60, 50
51, 50


Impaction Fluticasone Propionate

77, 75
59, 62
48, 48
57, 56


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
290 to 400
325, 339
342, 332
360, 337
351, 335


Impaction Fluticasone Propionate

337, 322
364, 364
313, 348
342, 349


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 2
1, 1
1, 1
0, 0
1, 1


Impaction Fluticasone Propionate

1, 1
1, 1
0, 0
1, 1


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 103







Stability data for DISKUS ® 500/50 μg 60 Dose Product without overwrap








Packed Batch Number: I
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
 7 to 13
11, 12
11, 11
10, 11
10, 11
10, 10


Impaction Salmeterol Sum of stages

12, 11
12, 11
11, 11
11, 11
10, 9 


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
7, 7
6, 6
6, 7
6, 6
6, 6


Impaction Salmeterol Sum of stages

7, 7
7, 6
6, 6
6, 6
5, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
34, 35
37, 37
35, 36
34, 34
36, 34


Impaction Salmeterol Sum of stages

35, 33
37, 35
36, 36
35, 35
35, 33


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 104







Stability data for DISKUS ® 500/50 μg 60 Dose Product without overwrap








Packed Batch Number: I
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
 96 to 150
127, 130
127, 125
116, 128
114, 124
118, 113


Impaction Fluticasone Propionate

129, 125
131, 117
119, 127
125, 118
113, 105


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
43 to 92
75, 76
70, 68
66, 73
67, 72
65, 64


Impaction Fluticasone Propionate

77, 75
73, 66
69, 72
71, 67
62, 56


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
290 to 400
325, 339
355, 362
336, 352
326, 324
345, 332


Impaction Fluticasone Propionate

337, 322
358, 341
346, 348
337, 345
344, 322


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 2
1, 1
1, 1
1, 1
1, 1
1, 1


Impaction Fluticasone Propionate

1, 1
1, 1
1, 1
1, 1
1, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 105







Stability data for DISKUS ® 500/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH with overwrap for 17 months








Packed Batch Number: I
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 Weeks
1 Month
1.5 Months





Particle Size Distribution by Cascade
 7 to 13
10, 9 
9, 9
10, 10
9, 9


Impaction Salmeterol Sum of stages

9, 9
10, 10
10, 9 
 9, 10


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
6, 4
5, 5
5, 5
4, 5


Impaction Salmeterol Sum of stages

5, 5
5, 5
5, 5
5, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
35, 38
37, 36
36, 36
35, 34


Impaction Salmeterol Sum of stages

36, 36
37, 38
35, 34
35, 36


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.0, 0.0
0.1, 0.0
0.1, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.0, 0.0
0.1, 0.1
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 106







Stability data for DISKUS ® 500/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH with overwrap for 17 months (cont'd)








Packed Batch Number: I
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 Weeks
1 Month
1.5 Months





Particle Size Distribution by Cascade
 96 to 150
107, 101
101, 101
115, 108
105, 102


Impaction Fluticasone Propionate

103, 105
107, 112
108, 104
101, 108


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
43 to 92
70, 50
54, 51
62, 56
50, 55


Impaction Fluticasone Propionate

51, 53
55, 59
56, 55
52, 57


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
290 to 400
344, 375
361, 355
359, 353
344, 334


Impaction Fluticasone Propionate

351, 359
369, 375
347, 341
344, 353


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 2
1, 0
1, 1
1, 1
1, 1


Impaction Fluticasone Propionate

1, 1
1, 1
1, 1
1, 1


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 107







Stability data for DISKUS ® 500/50 μg 60 Dose Product with overwrap








Packed Batch Number: J
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
 7 to 13
11, 11
10, 11
10, 11
 9, 10


Impaction Salmeterol Sum of stages

12, 11
10, 10
11, 10
10, 10


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
7, 7
6, 6
5, 6
5, 5


Impaction Salmeterol Sum of stages

7, 6
6, 6
6, 5
5, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
35, 36
35, 34
36, 36
36, 37


Impaction Salmeterol Sum of stages

35, 32
35, 34
36, 36
36, 35


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.0, 0.0
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.0
0.0, 0.0
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 108







Stability data for DISKUS ® 500/50 μg 60 Dose Product with overwrap








Packed Batch Number: J
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 Months
12 Months
18 Months





Particle Size Distribution by Cascade
 7 to 13
11, 11
10, 10
10, 10
10, 10


Impaction Salmeterol Sum of stages

12, 11
9, 9
10, 10
11, 9 


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
7, 7
5, 5
6, 5
6, 5


Impaction Salmeterol Sum of stages

7, 6
5, 5
6, 5
6, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
35, 36
35, 33
38, 37
35, 35


Impaction Salmeterol Sum of stages

35, 32
36, 35
37, 37
36, 34


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.0, 0.0
0.0, 0.0
0.1, 0.1


Impaction Salmeterol Sum of stages

0.1, 0.0
0.0, 0.0
0.0, 0.0
0.1, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 109







Stability data for DISKUS ® 500/50 μg 60 Dose Product with overwrap








Packed Batch Number: J
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
96 to 150
125, 124
114, 118
113, 124
105, 108


Impaction Fluticasone Propionate

127, 116
114, 113
119, 115
110, 109


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
43 to 92
75, 77
65, 70
61, 70
54, 56


Impaction Fluticasone Propionate

77, 70
65, 67
65, 60
58, 58


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
290 to 400
336, 344
338, 329
354, 350
363, 369


Impaction Fluticasone Propionate

344, 309
340, 325
359, 358
352, 341


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 2
1, 1
1, 1
1, 1
1, 0


Impaction Fluticasone Propionate

1, 1
1, 1
1, 1
0, 1


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 110







Stability data for DISKUS ® 500/50 μg 60 Dose Product with overwrap








Packed Batch Number: J
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 months
12 months
18 months





Particle Size Distribution by Cascade
 96 to 150
125, 124
111, 108
113, 113
113, 108


Impaction Fluticasone Propionate

127, 116
103, 106
115, 114
117, 105


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
43 to 92
75, 77
59, 60
61, 61
64, 58


Impaction Fluticasone Propionate

77, 70
55, 57
62, 59
64, 56


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
290 to 400
336, 344
343, 330
363, 358
350, 349


Impaction Fluticasone Propionate

344, 309
353, 342
361, 367
355, 344


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 2
1, 1
1, 1
1, 1
1, 1


Impaction Fluticasone Propionate

1, 1
1, 1
1, 1
1, 1


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 111







Stability data for DISKUS ® 500/50 μg 60 Dose Product without overwrap








Packed Batch Number: J
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
 7 to 13
11, 11
11, 11
11, 11
11, 11
 9, 10


Impaction Salmeterol Sum of stages

12, 11
11, 11
11, 11
11, 10
10, 11


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
7, 7
6, 6
6, 7
7, 7
5, 6


Impaction Salmeterol Sum of stages

7, 6
6, 6
6, 6
7, 6
5, 6


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
35, 36
35, 36
34, 36
34, 34
35, 36


Impaction Salmeterol Sum of stages

35, 32
35, 35
36, 34
32, 34
35, 37


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.0
0.1, 0.1
0.0, 0.0
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 112







Stability data for DISKUS ® 500/50 μg 60 Dose Product without overwrap








Packed Batch Number: J
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
 96 to 150
125, 124
121, 121
118, 123
124, 127
103, 116


Impaction Fluticasone Propionate

127, 116
120, 120
122, 118
123, 115
108, 117


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
43 to 92
75, 77
68, 67
71, 73
72, 75
54, 66


Impaction Fluticasone Propionate

77, 70
69, 66
71, 70
73, 64
60, 66


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
290 to 400
336, 344
339, 348
325, 345
334, 331
341, 353


Impaction Fluticasone Propionate

344, 309
337, 343
346, 331
314, 332
341, 361


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 2
1, 1
1, 1
1, 1
1, 1
1, 1


Impaction Fluticasone Propionate

1, 1
1, 1
1, 1
1, 1
1, 1


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 113







Stability data for DISKUS ® 500/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH with overwrap for 17 months








Packed Batch Number: J
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 Weeks
1 Month
1.5 Months





Particle Size Distribution by Cascade
 7 to 13
 9, 10
10, 10
10, 10
10, 11


Impaction Salmeterol Sum of stages

10, 10
10, 10
 9, 10
10, 10


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
4, 6
5, 5
5, 6
6, 6


Impaction Salmeterol Sum of stages

5, 5
5, 5
5, 5
5, 6


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
36, 36
36, 35
35, 35
38, 37


Impaction Salmeterol Sum of stages

35, 36
37, 35
34, 36
34, 35


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.0, 0.1
0.1, 0.1
0.0, 0.1
0.1, 0.1


Impaction Salmeterol Sum of stages

0.1, 0.1
0.0, 0.1
0.0, 0.1
0.0, 0.1


6, 7 & F (μg per blister)


Individual
















TABLE 114







Stability data for DISKUS ® 500/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH with overwrap for 17 months (cont'd)








Packed Batch Number: J
Storage condition



25° C./75% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 Weeks
1 Month
1.5 Months





Particle Size Distribution by Cascade
 96 to 150
100, 115
114, 105
107, 114
108, 117


Impaction Fluticasone Propionate

108, 115
115, 107
 99, 112
116, 114


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
43 to 92
49, 61
58, 53
57, 63
61, 63


Impaction Fluticasone Propionate

57, 59
60, 56
52, 61
60, 64


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
290 to 400
346, 359
355, 341
344, 348
367, 365


Impaction Fluticasone Propionate

341, 360
366, 348
338, 357
340, 353


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 2
0, 1
1, 1
1, 1
1, 1


Impaction Fluticasone Propionate

1, 1
1, 1
1, 1
1, 1


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 115







Stability data for DISKUS ® 500/50 μg 60 Dose Product with overwrap








Packed Batch Number: K
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
7 to 13
11, 12
11, 11
9, 11
10 11


Impaction Salmeterol Sum of stages

12, 12
11, 11
10, 10
11, 9


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
7, 7
6, 6
5, 6
6, 6


Impaction Salmeterol Sum of stages

8, 7
6, 6
5, 6
6, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
36, 37
35, 37
34, 36
36, 37


Impaction Salmeterol Sum of stages

37, 39
36, 36
35, 38
37, 34


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.0, 0.0
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.1
0.0, 0.0
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 116







Stability data for DISKUS ® 500/50 μg 60 Dose Product with overwrap








Packed Batch Number: K
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 Months
12 Months
18 Months





Particle Size Distribution by Cascade
 7 to 13
11, 12
10, 10
10, 8 
9, 9


Impaction Salmeterol Sum of stages

12, 12
10, 9 
10, 9 
10, 9 


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
7, 7
6, 5
5, 4
5, 5


Impaction Salmeterol Sum of stages

8, 7
6, 5
5, 4
5, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
36, 37
36, 38
36, 34
36, 36


Impaction Salmeterol Sum of stages

37, 39
35, 36
38, 36
36, 37


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.0, 0.0
0.0, 0.0
0.1, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.1
0.0, 0.0
0.0, 0.0
0.1, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 117







Stability data for DISKUS ® 500/50 μg 60 Dose Product with overwrap








Packed Batch Number: K
Storage condition



25° C./60% RH



Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
 96 to 150
124, 132
118, 124
104, 120
113, 118


Impaction Fluticasone Propionate

138, 136
120, 119
113, 117
118, 104


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
43 to 92
76, 80
69, 71
54, 67
64, 65


Impaction Fluticasone Propionate

83, 81
70, 68
61, 63
66, 57


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
290 to 400
344, 353
356, 363
334, 350
353, 361


Impaction Fluticasone Propionate

352, 371
353, 349
340, 365
367, 337


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 2
1, 1
1, 1
0, 1
1, 0


Impaction Fluticasone Propionate

1, 1
1, 1
1, 1
1, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 118







Stability data for DISKUS ® 500/50 μg 60 Dose Product with overwrap









Packed Batch Number:
K
Storage condition




25° C./60% RH




Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 Months
12 Months
18 Months





Particle Size Distribution by Cascade
 96 to 150
124, 132
115, 113
107, 85 
103, 103


Impaction Fluticasone Propionate

138, 136
111, 106
107, 94 
112, 105


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
43 to 92
76, 80
67, 60
55, 41
57, 52


Impaction Fluticasone Propionate

83, 81
64, 55
55, 48
60, 56


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
290 to 400
344, 353
351, 368
356, 340
350, 355


Impaction Fluticasone Propionate

352, 371
342, 361
382, 359
356, 365


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 2
1, 1
1, 1
0, 0
1, 0


Impaction Fluticasone Propionate

1, 1
1, 1
0, 0
1, 1


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 119







Stability data for DISKUS ® 500/50 μg 60 Dose Product without overwrap









Packed Batch Number:
K
Storage condition




25° C./75% RH




Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
 7 to 13
11, 12
10, 10
11, 11
11, 10
10, 11


Impaction Salmeterol Sum of stages

12, 12
12, 10
11, 11
11, 11
11, 11


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
7, 7
6, 6
6, 6
6, 5
6, 6


Impaction Salmeterol Sum of stages

8, 7
7, 6
6, 6
6, 7
6, 6


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
36, 37
34, 35
35, 36
35, 34
32, 35


Impaction Salmeterol Sum of stages

37, 39
37, 36
35, 35
32, 38
35, 35


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.1
0.1, 0.1
0.0, 0.0
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.1, 0.1
0.1, 0.0
0.0, 0.0
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 120







Stability data for DISKUS ® 500/50 μg 60 Dose Product without overwrap









Packed Batch Number:
K
Storage condition




25° C./75% RH




Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
 96 to 150
124, 132
111, 114
117, 121
118, 108
113, 121


Impaction Fluticasone Propionate

138, 136
129, 111
120, 120
125, 126
118, 122


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
42 to 93
76, 80
66, 68
69, 69
66, 58
65, 68


Impaction Fluticasone Propionate

83, 81
77, 63
70, 71
72, 72
65, 70


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
290 to 400
344, 353
330, 340
339, 353
340, 329
315, 343


Impaction Fluticasone Propionate

352, 371
354, 345
339, 344
310, 355
345, 340


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 2
1, 1
1, 1
1, 1
1, 1
1, 1


Impaction Fluticasone Propionate

1, 1
1, 1
1, 1
1, 1
1, 2


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 121







Stability data for DISKUS ® 500/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH with overwrap for 17 months









Packed Batch Number:
K
Storage condition




25° C./75% RH




Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 Weeks
1 Month
1.5 Months





Particle Size Distribution by Cascade
 7 to 13
10, 10
9, 9
11, 10
10, 10


Impaction Salmeterol Sum of stages

10, 9 
9, 9
10, 10
10, 9 


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
5, 5
5, 5
6, 5
6, 5


Impaction Salmeterol Sum of stages

5, 5
5, 5
5, 5
5, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
38, 35
35, 36
37, 35
37, 36


Impaction Salmeterol Sum of stages

37, 36
34, 34
36, 35
36, 35


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.1, 0.0
0.0, 0.1
0.1, 0.1
0.0, 0.0


Impaction Salmeterol Sum of stages

0.0, 0.0
0.0, 0.1
0.0, 0.1
0.1, 0.1


6, 7 & F (μg per blister)


Individual
















TABLE 122







Stability data for DISKUS ® 500/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH with overwrap for 17 months (cont'd)









Packed Batch Number:
K
Storage condition




25° C./75% RH




Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 Weeks
1 Month
1.5 Months





Particle Size Distribution by Cascade
 96 to 150
109, 111
100, 106
119, 109
108, 110


Impaction Fluticasone Propionate

109, 105
103, 102
110, 109
111, 103


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
43 to 92
58, 59
53, 56
62, 56
60, 57


Impaction Fluticasone Propionate

58, 54
55, 55
61, 61
58, 56


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
290 to 400
373, 349
351, 361
369, 348
365, 352


Impaction Fluticasone Propionate

367, 361
343, 340
357, 351
352, 347


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 2
1, 0
1, 1
1, 1
1, 1


Impaction Fluticasone Propionate

1, 0
1, 1
1, 1
1, 1


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 123







Stability data for DISKUS ® 500/50 μg 60 Dose Product with overwrap









Packed Batch Number:
L
Storage condition




25° C./60% RH




Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
 7 to 13
10, 10
8, 8
8, 8
9, 8


Impaction Salmeterol Sum of stages

10, 10
9, 9
8, 8
8, 8


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
6, 6
5, 4
4, 4
5, 4


Impaction Salmeterol Sum of stages

5, 6
5, 5
4, 4
4, 4


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
36, 34
36, 36
36, 37
36, 36


Impaction Salmeterol Sum of stages

36, 35
37, 37
35, 36
36, 37


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.0, 0.0
0.0, 0.0
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.0, 0.0
0.0, 0.0
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 124







Stability data for DISKUS ® 500/50 μg 60 Dose Product with overwrap









Packed Batch Number:
L
Storage condition




25° C./60% RH




Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 Months
12 Months
18 Months





Particle Size Distribution by Cascade
 7 to 13
10, 10
10, 9 
8, 6
9, 9


Impaction Salmeterol Sum of stages

10, 10
9, 9
7, 7
8, 8


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
6, 6
5, 5
4, 3
5, 5


Impaction Salmeterol Sum of stages

5, 6
5, 5
3, 4
5, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
36, 34
36, 37
36, 35
36, 38


Impaction Salmeterol Sum of stages

36, 35
35, 36
35, 36
34, 35


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.0, 0.0
0.0, 0.0
0.0, 0.0
0.1, 0.1


Impaction Salmeterol Sum of stages

0.0, 0.0
0.0, 0.0
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 125







Stability data for DISKUS ® 500/50 μg 60 Dose Product with overwrap









Packed Batch Number:
L
Storage condition




25° C./60% RH




Testing Complete










End of life
Storage Time












Test
Specification
Initial
1 Month
3 Months
6 Months





Particle Size Distribution by Cascade
 96 to 150
116, 115
94, 90
90, 93
104, 94 


Impaction Fluticasone Propionate

105, 108
101, 104
89, 92
88, 93


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
43 to 92
67, 70
52, 48
46, 49
56, 49


Impaction Fluticasone Propionate

60, 64
54, 59
47, 50
44, 48


Sum of stages 3-4 (μg per blister)


Individual



Particle Size Distribution by Cascade
290 to 400
355, 337
350, 355
352, 367
356, 354


Impaction Fluticasone Propionate

348, 343
358, 360
342, 358
357, 358


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 2
1, 1
1, 0
0, 0
0, 0


Impaction Fluticasone Propionate

1, 1
0, 1
0, 0
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 126







Stability data for DISKUS ® 500/50 μg 60 Dose Product with overwrap









Packed Batch Number:
L
Storage condition




25° C./60% RH




Testing Complete










End of life
Storage Time












Test
Specification
Initial
9 Months
12 Months
18 Months





Particle Size Distribution by Cascade
 96 to 150
116, 115
109, 96 
92, 71
97, 97


Impaction Fluticasone Propionate

105, 108
 96, 100
79, 83
95, 94


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
43 to 92
67, 70
57, 51
47, 32
53, 54


Impaction Fluticasone Propionate

60, 64
52, 52
38, 40
52, 50


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
290 to 400
355, 337
357, 361
360, 354
360, 381


Impaction Fluticasone Propionate

348, 343
345, 355
347, 363
345, 353


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 2
1, 1
1, 1
0, 0
1, 1


Impaction Fluticasone Propionate

1, 1
0, 1
0, 0
1, 1


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 127







Stability data for DISKUS ® 500/50 μg 60 Dose Product without overwrap









Packed Batch Number:
L
Storage condition




25° C./75% RH




Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
 7 to 13
10, 10
10, 9 
9, 9
10, 9 
8, 7


Impaction Salmeterol Sum of stages

10, 10
9, 9
8, 9
10, 10
9, 8


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
6, 6
6, 5
5, 5
6, 5
4, 4


Impaction Salmeterol Sum of stages

5, 6
5, 5
5, 5
5, 5
5, 5


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
36, 34
38, 36
37, 36
36, 34
36, 36


Impaction Salmeterol Sum of stages

36, 35
35, 37
36, 37
35, 36
36, 36


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.0, 0.0
0.1, 0.1
0.0, 0.0
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.0, 0.0
0.0, 0.0
0.0, 0.0
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 128







Stability data for DISKUS ® 500/50 μg 60 Dose Product without overwrap









Packed Batch Number:
L
Storage condition




25° C./75% RH




Testing Complete










End of life
Storage Time













Test
Specification
Initial
2 Weeks
1 Month
1.5 Months
3 Months





Particle Size Distribution by Cascade
 96 to 150
116, 115
113, 102
97, 99
109, 106
91, 82


Impaction Fluticasone Propionate

105, 108
101, 97 
 94, 104
109, 107
97, 94


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
43 to 92
67, 70
63, 60
53, 55
62, 59
48, 46


Impaction Fluticasone Propionate

60, 64
58, 56
53, 59
61, 61
52, 51


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
290 to 400
355, 337
371, 346
359, 350
349, 333
354, 351


Impaction Fluticasone Propionate

348, 343
345, 356
345, 357
340, 355
356, 356


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 2
1, 1
1, 1
0, 1
1, 1
0, 1


Impaction Fluticasone Propionate

1, 1
1, 1
0, 1
1, 1
0, 0


Sum of stages 6, 7 & F (μg per blister)


Individual
















TABLE 129







Stability data for DISKUS ® 500/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH with overwrap for 17 months









Packed Batch Number:
L
Storage condition




25° C./75% RH




Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 Weeks
1 Month
1.5 Months





Particle Size Distribution by Cascade
 7 to 13
8, 7
8, 9
9, 7
9, 9


Impaction Salmeterol Sum of stages

8, 8
7, 8
8, 8
9, 9


1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
4 to 8
4, 4
4, 4
4, 4
5, 4


Impaction Salmeterol Sum of stages

4, 4
4, 4
4, 4
4, 4


3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
28 to 42
36, 35
35, 36
34, 35
36, 37


Impaction Salmeterol Sum of stages

38, 36
34, 35
37, 35
36, 37


TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 0.5
0.0, 0.0
0.0, 0.0
0.0, 0.0
0.0, 0.0


Impaction Salmeterol Sum of stages

0.0, 0.0
0.0, 0.0
0.0, 0.0
0.0, 0.0


6, 7 & F (μg per blister)


Individual
















TABLE 130







Stability data for DISKUS ® 500/50 μg 60 Dose Product without overwrap


Samples previously stored at 25° C./60% RH with overwrap for 17 months (cont'd)









Packed Batch Number:
L
Storage condition




25° C./75% RH




Testing Complete










End of life
Storage Time












Test
Specification
Initial
2 Weeks
1 Month
1.5 Months





Particle Size Distribution by Cascade
 96 to 150
86, 83
86, 96
96, 83
95, 98


Impaction Fluticasone Propionate

94, 91
79, 92
85, 86
97, 96


Sum of stages 1-5 (μg per blister)


Individual


Particle Size Distribution by Cascade
43 to 92
44, 43
46, 49
49, 43
51, 47


Impaction Fluticasone Propionate

49, 46
42, 50
43, 45
48, 49


Sum of stages 3-4 (μg per blister)


Individual


Particle Size Distribution by Cascade
290 to 400
356, 354
350, 364
337, 348
358, 371


Impaction Fluticasone Propionate

353, 359
340, 349
371, 347
359, 372


Sum of stages TP0 (μg per blister)


Individual


Particle Size Distribution by Cascade
NGT 2
0, 0
1, 1
0, 0
0, 0


Impaction Fluticasone Propionate

0, 0
0, 0
0, 0
0, 1


Sum of stages 6, 7 & F (μg per blister)


Individual









The invention has been described in reference to the embodiments set forth above. It should be appreciated that such embodiments are for illustrative purposes only, and do not limit the scope of the invention as defined by the claims.

Claims
  • 1. A process for forming lactose composition suitable for use in a pharmaceutical formulation, said process comprising: providing a plurality of lactose particles containing no more than 10% w/w of lactose particles having a volume average particle size of about 70 microns or less, wherein said plurality of lactose particles are present as crystalline lactose;milling the plurality of lactose particles to yield a plurality of milled lactose particles with an average particle size, (D50), ranging from about 50 microns to about 100 microns;classifying said plurality of milled lactose particles into at least two fractions comprising a fine fraction and a coarse fraction wherein the fine fraction has an average particle size, (D50), ranging from 10 microns to 30 microns, and the coarse fraction has an average particle size, (D50), ranging from about 40 microns to about 250 microns; andcombining a portion of the coarse fraction with a portion of the fine fraction to form a lactose composition consisting of the fine fraction and the coarse fraction;
  • 2. The process according to claim 1, wherein the lactose is selected from the group consisting of anhydrous lactose, lactose monohydrate, and combinations thereof.
  • 3. The process according to claim 1, further comprising combining at least one medicament with a lactose composition to form a pharmaceutical formulation, the lactose composition comprising from 0 to 100 percent by weight of the coarse fraction and from 0 to 100 percent by weight of the fine fraction.
  • 4. The process according to claim 1, further comprising combining the lactose composition with at least one medicament to form a pharmaceutical formulation.
  • 5. The process according to claim 1, further comprising combining: (i) from 0 to 100 percent by weight of the coarse fraction, (ii) from 0 to 100 percent by weight of the fine fraction, and (iii) at least one medicament to form a pharmaceutical formulation.
  • 6. The process according to claim 3, wherein the pharmaceutical formulation is a dry powder pharmaceutical formulation suitable for inhalation.
  • 7. The process according to claim 3, wherein the at least one medicament comprises at least one beta agonist.
  • 8. The process according to claim 7, wherein the at least one beta agonist comprises salmeterol xinafoate.
  • 9. The process according to claim 7, wherein the at least one beta agonist comprises salbutamol sulphate.
  • 10. The process according to claim 3, wherein the at least one medicament comprises at least one anti-inflammatory steroid.
  • 11. The process according to claim 10, wherein the at least one anti-inflammatory steroid comprises fluticasone propionate.
  • 12. The process according to claim 3, wherein the at least one medicament comprises at least one beta agonist and at least one anti-inflammatory steroid.
  • 13. The process according to claim 12, wherein the at least one beta agonist comprises salmeterol xinafoate and the at least one anti-inflammatory steroid comprises fluticasone propionate.
  • 14. The process according to claim 3, wherein the at least one medicament is selected from the group consisting of albuterol sulphate, salmeterol xinafoate, fluticasone propionate, beclomethasone dipropionate, and combinations thereof.
  • 15. The process according to claim 3, wherein said pharmaceutical formulation further comprises at least one additional excipient.
CROSS-REFERENCE TO RELATED APPLICATIONS

This application is filed pursuant to 35 USC 371 as a United States National Phase Application of International Patent Application Serial No. PCT/US2006/004032 filed on Feb. 6, 2006, which claims priority from 60/651,755 filed on Feb. 10, 2005 in the United States.

PCT Information
Filing Document Filing Date Country Kind 371c Date
PCT/US2006/004032 2/6/2006 WO 00 8/9/2007
Publishing Document Publishing Date Country Kind
WO2006/086270 8/17/2006 WO A
US Referenced Citations (40)
Number Name Date Kind
2856318 Peebles Oct 1958 A
3344030 Stevens et al. Sep 1967 A
3634582 Hartley et al. Jan 1972 A
3728445 Bardani Apr 1973 A
4099983 Wittenberg Jul 1978 A
4404038 Credoz et al. Sep 1983 A
4778054 Newell et al. Oct 1988 A
4811731 Newell et al. Mar 1989 A
5035237 Newell et al. Jul 1991 A
5254330 Ganderton et al. Oct 1993 A
5478578 Arnold et al. Dec 1995 A
5590645 Davies et al. Jan 1997 A
5860419 Davies et al. Jan 1999 A
5873360 Davies et al. Feb 1999 A
6030604 Trofast Feb 2000 A
6032666 Davies et al. Mar 2000 A
6129905 Cutie Oct 2000 A
6143277 Ashurst et al. Nov 2000 A
6153224 Staniforth Nov 2000 A
6170717 Di Giovanni et al. Jan 2001 B1
6221338 Staniforth Apr 2001 B1
6253762 Britto Jul 2001 B1
6315173 Di Giovanni et al. Nov 2001 B1
6318603 Burt Nov 2001 B1
6321747 Dmitrovic et al. Nov 2001 B1
6360739 Rand et al. Mar 2002 B1
6378519 Davies et al. Apr 2002 B1
6390291 Garrill et al. May 2002 B1
6431168 Rand et al. Aug 2002 B1
6511653 Britto et al. Jan 2003 B1
6532955 Ashurst et al. Mar 2003 B1
6536427 Davies et al. Mar 2003 B2
6546928 Ashurst et al. Apr 2003 B1
6623760 Yang et al. Sep 2003 B1
20010051187 Yang Dec 2001 A1
20020053344 Davies et al. May 2002 A1
20030157184 Yang Aug 2003 A1
20040037784 Armour et al. Feb 2004 A1
20040109828 Yang Jun 2004 A1
20040258626 Zeng Dec 2004 A1
Foreign Referenced Citations (63)
Number Date Country
718846 Jan 1969 BE
872319 May 1979 BE
246121 May 1987 DE
19962926 Jun 2001 DE
4140689 Nov 2007 DE
069715 Jan 1983 EP
52541 Feb 1985 EP
239172 Feb 1993 EP
311977 Dec 1993 EP
611589 Aug 1997 EP
1381872 Jan 1975 GB
2064336 Jun 1981 GB
2129691 May 1984 GB
2169265 Jul 1986 GB
2178965 Feb 1987 GB
2240337 Jul 1991 GB
2242134 Sep 1991 GB
55019237 Feb 1980 JP
55071498 May 1980 JP
2001072586 Mar 2001 JP
2001151673 Jun 2001 JP
2003313118 Nov 2003 JP
7908599 Jun 1980 NL
1787413 Jan 1993 RU
1796844 Feb 1993 RU
1105506 Jul 1984 SU
1208078 Jan 1986 SU
1227670 Apr 1986 SU
1286631 Jan 1987 SU
1296581 Mar 1987 SU
1337026 Sep 1987 SU
9511666 May 1995 WO
9524889 Sep 1995 WO
9623485 Aug 1996 WO
9826827 Jun 1998 WO
9948475 Sep 1999 WO
0033789 Jun 2000 WO
0038811 Jul 2000 WO
0044352 Aug 2000 WO
0053158 Sep 2000 WO
0105429 Jan 2001 WO
0132125 May 2001 WO
0145677 Jun 2001 WO
0160341 Aug 2001 WO
0176560 Oct 2001 WO
0178693 Oct 2001 WO
0178694 Oct 2001 WO
0178695 Oct 2001 WO
0189491 Nov 2001 WO
0189492 Nov 2001 WO
0200197 Jan 2002 WO
0228368 Apr 2002 WO
0230389 Apr 2002 WO
0230390 Apr 2002 WO
0230394 Apr 2002 WO
0250089 Jun 2002 WO
02080884 Oct 2002 WO
03024396 Mar 2003 WO
03077886 Sep 2003 WO
03088943 Oct 2003 WO
03088944 Oct 2003 WO
03090786 Nov 2003 WO
2004052334 Jun 2004 WO
Non-Patent Literature Citations (181)
Entry
Zeng, Xian, The influence of Lactose carrier on the content of homogeneity and dispersibility of beclomethasone from dry powder aerosol, International Journal of Pharmaceutics 197 (2000) 41-52.
Riepma, et al., “Consolidation and compaction of powder mixtures: II. Binary mixtures of different particle size fractions of a-lactose monohydrate” International Journal of Pharmaceutics, vol. 76, pp. 9-15 (1991).
Riepma, et al., “The effect of dry granulation on the consolidation and compaction of crystalline lactose” International Journal of Pharmaceutics, vol. 97, pp. 29-38 (1993).
Rowley, “Quantifying electrostatic interactions in pharmaceutical solid systems” International Journal of Pharmaceutics, vol. 227, pp. 47-55 (2001).
Sebhatu, et al., “Relationships between the effective interparticulate contact area and the tensile strength of tablets of amorphous and crystalline lactose of varying particle size” European Journal of Pharmaceutical Sciences, vol. 8, pp. 235-242 (1999).
Sebhatu, et al., “The effect of moisture content on the compression and bond-formation properties of amorphous lactose particles” International Journal of Pharmaceutics, vol. 146, pp. 101-114 (1997).
Shah, et al., “High Energy Ordered Mixture for Improving the Dissolution Rate of Sparingly Soluble Compounds” Drug Development and Industrial Pharmacy, vol. 20 (5), pp. 873-888 (1994).
Shekunov, et al., “Aerosolisation behaviour of micronised and supercritically-processed powders” Aerosol Science, vol. 34, pp. 553-568 (2003).
Srichana, et al., “On the relationship between drug and carrier deposition from dry powder inhalers in vitro” International Journal of Pharmaceutics, vol. 167, pp. 13-23 (1998).
Steckel, et al., “In vitro evaluation of dry powder inhalers II: influence of carrier particle size and concentration on in vitro deposition” International Journal of Pharmaceutics, vol. 154, pp. 31-37 (1997).
Steckel, et al., “Functionality testing of inhalation grade lactose” European Journal of Pharmaceutics and Biopharmaceutics, vol. 57, pp. 495-505 (2004).
Stubberud, et al., “The use of gravimetry for the study of the effect of additives on the moisture-induced recrystallisation of amorphous lactose” International Journal of Pharmaceutics, vol. 163, pp. 145-156 (1998).
Takano, et al., “Binderless granulation of pharmaceutical fine powders with coarse lactose for dry powder inhalation” Powder Technology, vol. 131, pp. 129-138 (2003).
Takano, et al., “Binderless granulation of pharmaceutical lactose powders” Powder Technology, vol. 122, pp. 212-221 (2002).
Takano, et al., “Fluidized bed binderless granulation of hydrophobic drugs with fine lactose powder” Advanced Powder Takano, vol. 14(3), pp. 369-381 (2003).
te Wierik, et al., “Formulation of Lactose for Inhaled Delivery Systems” Pharmaceutical Technology Europe, pp. 1-5 (2002).
Tee, et al., “The use of different sugars as fine and coarse carriers for aerosolised salbutamol sulphate” International Journal of Pharmaceutics, vol. 208, pp. 111-123 (2000).
Thwaites, et al., “An Investigation of the Effect of High Speed Mixing on the Mechanical and Physical Properties of Direct Compression Lactose” Drug Development and Industrial Pharmacy, vol. 17(4), pp. 503-517 (1991).
Nakate, et al., “Formulation development of inhalation powders for FK888 with carrier lactose using Spinhaler and its absorption in healthy volunteers” Journal of Controlled Release, vol. 97, pp. 19-29 (2004).
Valle-Vega, et al., “Variability of Growth of Lactose Crystals Under Commercial Treatment” J. Dairy Sci., vol. 60, pp. 1544-1549 (1977).
van den Dries, et al.., “Relationship between inhomogeneity phenomena and granule growth mechanisms in a high-shear mixer” International Journal of Pharmaceutics, vol. 247, pp. 167-177 (2002).
Vanbever, et al., Formulation and Physical Characterization of Large Porous Particles for Inhalation, Pharmaceutical Research, vol. 16(11), pp. 1735-1742 (1999).
Vanderbist, et al., “Optimization of a Dry Powder Inhaler Formulation of Nacystelyn, a New Mucoactive Agent” J. Pharm. Pharmacol., vol. 51, pp. 1229-1234 (1999).
Vatsaraj, et al., “Optimization of the Operating Conditions of a Lab Scale Aljet Mill Using Lactose and Sucrose: A Technical Note” AAPS PharmSciTech, vol. 4(2), Article 27, pp. 1-6 (2003).
Vojnovic, et al., “Experimental Design for a Granulation Process with “A Priori” Criterias” Drug Development and Industrial Pharmacy, vol. 21 (7), pp. 823-831 (1995).
Vromans, et al., “Studies on Tableting Properties of Lactose; The Effect of Initial Particle Size on Binding Properties and Dehydration Characteristics of a-Lactose Monohydrate” Drug Development and Industrial Pharmacy, vol. 12 (11-13), pp. 1715-1730 (1986).
Vromans, et al., “Studies of tableting properties of lactose. IX. The relationship between particle structure and compactibility of crystalline lactose” International Journal of Pharmaceutics, vol. 39, pp. 207-212, (1987).
Vromans, et al., “Studies on tableting properties of lactose. VII. The effect of variations in primary particle size and percentage of amorphous lactose in spray dried lactose products” International Journal of Pharmaceutics, vol. 35, pp. 29-37 (1987).
Vromans, et al., “Studies on tableting properties of lactose. VIII. The effect of variations in primary particle size, percentage of amorphous lactose and addition of a disintegrant on the disintegration of spray-dried lactose tablets” International JOunral of Pharmaceutics, vol. 39, pp. 201-206 (1987).
Whiteman, et al., “Variations in Lactose NF from Two Different Sources and Their Influence on Tablet Properties” Drug Development and Industrial Pharmacy, vol. 16(11), pp. 1815-1827 (1990).
Zeng, et al., “The role of fine particle lactose on the dispersion and deaggregation of salbutamol sulphate in an air stream in vitro” International Journal of Pharmaceutics, vol. 176, pp. 99-110 (1998).
Zeng, et al., “Crystallization of Lactose from Carbopol Gels” Pharmaceutical Research, vol. 17(7), pp. 879-886 (2000).
Zeng, et al., “The influence of lactose carrier on the content homogeneity and dispersibility of beclomethasone dipropionate from dry powder aerosols” International Journal of Pharmaceutics, vol. 197, pp. 41-52 (2000).
Zeng, et al.,. “The use of lactose recrystallised from carbopol gels as a carrier for aerosolised salbutamol sulphate” European Journal of Pharmaceutics and Biopharmaceutics, vol. 51, pp. 55-62 (2001).
Zeng, et al., “Effects of particle size and adding sequence of fine lactose on the deposition of salbutamol sulphate from a dry powder formulation” International Journal of Pharmaceutics, vol. 182, pp. 133-144 (1999).
Zeng, et al., “Lactose as a Carrier in Dry Powder Formulations: The Influence of Surface Characteristics on Drug Delivery” Journal of Pharmaceutical Sciences, vol. 90(9), pp. 1424-1434 (2001).
Zeng, et al., “The Effects of Carrier Size and Morphology on the Dispersion of Salbutamol Sulphate after Aerosolization at Different Flow Rates” J. Pharm. Pharmacol., vol. 52, pp. 1211-1221 (2000).
Zeng, et al., “The influence of carrier morphology on drug delivery by dry powder inhalers” International Journal of Pharmaceutics, vol. 200, pp. 93-106 (2000).
Zeng, et al., “The Influence of Crystallization Conditions on the Morphology of Lactose Intended for Use as a Carrier for Dry Powder Aerosols” J. Pharm. Pharmacol., vol. 52, pp. 633-643 (2000).
Zuurman,e t al., “The relationship between bulk density and compactibility of lactose granulations” International Journal of Pharmaceutics, vol. 102, pp. 1-9 (1994).
Zeng, X.M., et al; The role of fine particle lactose on the dispersion and deaggregation of salbutamol sulphate in an air stream in vitro; International Journal of Pharmaceutics; 1998; 176; 99-110; Elsevier.
Zeng, X.M., et al; The influence of lactose carrier on the content homogeneity and dispersibility of beclomethasone dipropionate from dry powder aerosols; International Journal of Pharmaceutics; 2000; 197; 41-52; Elsevier.
Bauer-Brandl, et al. “Evaluation of a Conical Mill for Screening of Direct Compression Formulations” Drug Development and Industrial Pharmacy, vol. 22(5), pp. 417-430 (1996).
Bennett, et al., “Modification of Electrostatic Charge on Inhaled Carrier Lactose Particles by Addition of Fine Particles” Drug Development and Industrial Pharmacy, vol. 25(1), pp. 99-103 (1999).
Bolhuis, et al., “Evaluation of Anhydrous a-Lactose, A New Excipient in Direct Compression” Drug Development and Industrial Pharmacy, vol. 11(8), pp. 1657-1681 (1985).
Bolhuis, et al., “Tableting Properties of Experimental and Commercially Available Lactose Granulations for Direct Compression” Drug Development and Industrial Pharmacy, vol. 21(18), pp. 2057-2071 (1995).
Briggner, et al., “The use of isothermal microcalorimetry in the study of changes in crystallinity induced during the processing of powders” International Journal of Pharmaceutics, vol. 105, pp. 125-135 (1994).
Cal, et al., “Comparison of a spray-dried a-lactose monohydrate with a fully hydrated roller-dried B-lactose.” International Journal of Pharmaceutics, vol. 136, pp. 13-21 (1996).
Cal, et al., “Effects of hydration on the properties of a roller-dried B-lactose for direct compression.” International Journal of Pharmaceutics, vol. 129, pp. 253-261 (1996).
Chan, et al., “Ultrafine Grinding Using a Fluidized Bed Opposed Jet Mill: Effects of Feed Load and Rotational Speed of Classifier Wheel on Particle Shape” Drug Development and Industrial Pharmacy, vol. 28(8), pp. 939-947 (2002).
Chan, et al., “Immobilization of Fine Particles on Lactose Carrier by Precision Coating and Its Effect on the Performance of Dry Powder Formulations” Journal of Pharmaceutical Sciences, vol. 92(5), pp. 975-984 (2003).
Chavan, et al., “Effect of Rise in Simulated Inspiratory Flow Rate and Carrier Particle Size on Powder Emptying from Dry Powder Inhalers” AAPS Pharmsci, vol. 2(2), article 10 (2000).
Chen, et al., “Energy-based Analysis of Milling a-lactose Monohydrate” Journal of Pharmaceutical Sciences, vol. 93 (4), pp. 886-895 (2004).
Chidavaenzi, et al., “The use of thermal techniques to assess the impact of feed concentration on the amorphous content and polymorphic forms present in spray dried lactose.” International Journal of Pharmaceutics, vol. 159, pp. 67-74 (1997).
Clarke, et al., “The formulation of Powder Inhalation Systems Containing a High Mass of Nedocromil Sodium Trihydrate” Journal of Pharmaceutical Sciences, vol. 90(2), pp. 213-223 (2001).
Podzeck, “Adhesion measurements to aid the formulation of dry powder inhalations” Current Topics in Colloid & Interface Science, vol. 5, pp. 221-235 (2002).
De Matas, et al., “The Effects of Particle Size and Sample Weight on the Dehydration of Lactose Monohydrate” Poster Session p. 3. 060.
Feeley, et al., “Processing effects on the surface properties of a-lactose monohydrate assessed by inverse gas chromatography (IGC)” Journal of Materials Science, vol. 37, pp. 217-222 (2002).
Fielden, et al., “The influence of lactose particle size on spheronization of extrudate processed by a ram extruder” International Journal of Pharmaceutics, vol. 81, pp. 205-224 (1992).
Garnier, et al., “Influence of supersaturation and structurally related additives on the crystal growth of a-lactose monohydrate” Journal of Crystal Growth, vol. 234, pp. 207-219 (2002).
Harjunen, et al., “Lactose modifications enhance its drug performance in the novel multiple dose Taifun DPI” European Journal of Pharmaceutical Sciences, vol. 16, pp. 313-321 (2002).
Hassanpour, et al., “Distinct element analysis of the effect of temperature on the bulk crushing of a-lactose monohydrate” Advanced Powder Technol., vol. 14(4), pp. 427-434 (2003).
Iida, et al., “Evaluation of Flow Properties of Dry Powder Inhalation of Salbutamol Sulfate with Lactose Carrier” Chem. Pharm. Bull., vol. 49(10), pp. 1326-1330 (2001).
Iida, et al., “Preparation of Dry Powder Inhalation by Surface Treatment of Lactose Carrier Particles” Chem. Pharm. Bull., vol. 51(1), pp. 1-5 (2003).
Ikegami, et al., “A new spherically agglomerated drug composite system with lactose for dry powder inhalation” Advanced Powder Technology, vol. 14(2), pp. 215-229 (2003).
Islam, et al., “Lactose Surface Modification by Decantation: Are Drug-Fine Lactose Ratios the Key to Better Dispersion of Salmeterol Xinafoate from Lactose-Interactive Mixtures?” Pharmaceutical Research, vol. 21(3), pp. 492-499 (2004).
Juppo, et al., “Determination of size distribution of lactose, glucose and mannitol granules by sieve analysis and laser diffractometry” International Journal of Pharmaceutics, vol. 88, pp. 141-149 (1992).
Larhrib, et al., “Characterisation and deposition studies of engineered lactose crystals with potential for use as a carrier for aerosolised salbutamol sulfate from dry powder inhalers” European Journal of Pharmaceutical Sciences, vol. 19, pp. 211-221 (2003).
Larhrib, et al., “The influence of carrier and drug morphology on drug delivery from dry powder formulations” International Journal of Pharmaceutics, vol. 257, pp. 283-296 (2003).
Larhrib, et al., “The use of different grades of lactose as a carrier for aerosolised salbutamol sulphate” International Journal of Pharmaceutics, vol. 191, pp. 1-14 (1999).
Lee, et al., “Use of a Fluidized Bed Hammer Mill for Size Reduction and Classification: Effects of Process Variables and Starting Materials on the Particle Size Distribution of Milled Lactose Batches” Pharmaceutical Development and Technology, vol. 8(4), pp. 431-442 (2003).
Lerk, “Consolidation and Compaction of Lactose” Drug Development and Industrial Pharmacy, vol. 19(17&18), pp. 2359-2398 (1993).
Leuenberger, et al., “Relation between crushing strength and internal specific surface area of lactose compacts” International Journal of Pharmaceutics, vol. 52, pp. 91-100 (1989).
Longuemard, et al., “Ground and native crystals: comparison of compression capacity and dissolution rate” International Journal of Pharmaceutics, vol. 170, pp. 51-61 (1998).
Louey, et al., “Particle Interactions Involved in Aerosol Dispersion of Ternary Interactive Mixtures” Pharmaceutical Research, vol. 19(10), pp. 1524-1531 (2002).
Lowe, et al., “A Mathematical Model for Lactose Dissolution, Part II. Dissolution Below the Alpha Lactose Solubility Limit” Journal of Food Engineering, vol. 38, pp. 15-25 (1998).
Lucas, et al., “Protein Deposition from Dry Powder Inhalers: Fine Particle Multiplets as Performance Modifiers” Pharmaceutical Research, vol. 15(4), pp. 562-569 (1998).
Mackaplow, et al., “Effect of primary particle size on granule growth and endpoint determination in high-shear wet granulation” Powder Technology, vol. 108, pp. 32-45 (2000).
Mackin, et al., “Quantification of low levels (<10%) of amorphous content in micronised active batches using dynamic vapour sorption and isothermal microcalonmetry.” International Journal of Pharmaceutics, vol. 231, pp. 227-236 (2002).
Modler, et al., “Influence of pH, Casein, and Whey Protein Denaturation on the Composition, Crystal Size, and Yield of Lactose from Condensed Whey” J. Dairy Sci, vol. 69, pp. 684-697 (1986).
Murakami, et al “Correlation between loose density and compactibility of granules prepared by various granulation methods” International Journal of Pharmaceutics, vol. 216, pp. 159-164 (2001).
Newell, et al., “The Use of Inverse Phase Gas Chromatography to Measure the Surface Energy of Crystalline, Amorphous, and Recently Milled Lactose” Pharmaceutical Research, vol. 18(5), pp. 662-666 (2001).
Newell, et al., “The use of inverse phase gas chromatography to study the change of surface energy of amorphous lactose as a function of relative humidity and the processes of collapse and crystallisation” International Journal of Pharmaceutics, vol. 217, pp. 45-56 (2001).
Ohkuma, et al., “Development of Air Separator for Pharmaceutical Powder Products” J. Soc. Powder Technol., vol. 39, pp. 864-869 (2002).
Osewa, et al., “Effect of Sieve Size for Wet and Dry Screening on the Physical Properties of Lactose Granules and Their Corresponding Tablets” Drug Development and Industrial Pharmacy, vol. 9(1&2), pp. 179-201 (1983).
Palakodaty, et al., “Supercritical Fluid Processing of materials from Aqueous Solutions: The Application of SEDS to Lactose as a Model Substance” Pharmaceutical Research, vol. 15(12), pp. 1835-1843 (1998).
Gericke, et al., PharmaZeutische Industrie, vol. 65(6), pp. 619-623 (2003).
Podczeck, “The Influence of Particle Size Distribution and Surface Roughness of Carrier Particles on the in vitro Properties of Dry Powder Inhalations” Aerosol Science and Technology, vol. 31, pp. 301-321 (1999).
Podczeck, “The relationship between physical properties of lactose monohydrate and the aerodynamic behaviour of adhered drug particles” International Journal of Pharmaceutics, vol. 160, pp. 119-130 (1998).
Raghavan, et al, “The Bulk Crystallization of a-lactose Monohydrate from Aqueous Solution” Journal of Pharmaceutical Sciences, Vo. 90(7), pp. 823-832 (2001).
Riepma, et al., “Consolidation and compaction of powder mixtures: III. Binary mixtures of different particle size fractions of different types of crystalline lactose” International Journal of Pharmaceutics, vol. 85, pp. 121-128 (1992).
Riepma, et al., “Consolidation and compaction of powder mixtures. I. Binary mixtures of same particle size fractions of different types of crystalline lactose” International Journal of Pharmaceutics, vol. 66, pp. 47-52 (1990).
Domo Closer to you. Lactopress—pharmaceutical lactose for direct compression tabletting. Lactochem—pharmaceutical lactose for wet granulation, capsules and sachets. Jan. 30, 2007.
Lactochem—Pharmaceutical lactose for wet granulation, capsules and sachets. Pre-2005.
Steckel, et al. “Effect of milling and sieving on functionality of dry powder inhalation products” 2006; Int. J. Pharm; vol. 309; pp. 51-59.
Pilcer, et al. “Lactose characteristics and the generation of the aerosol.” 2012; Adv. Drug Del.Revs.; vol. 64; pp. 233-256.
Ho, et al. “Influence of fines on the surface energy heterogeneity of lactose for pulmonary drug delivery.” 2010; Int. J. Pharm.; vol. 388; pp. 88-94.
MacGregor, et al.; “A preliminary study of size reduction of powders in a single-vessel pharmaceutical processor.” Poceedings of the Institution of Mechanical Engineers Part B—Journal of Engineering Manufacture; 2000; pp. 251-253; 214(3).
Mikkonen, et al.; “Effect of nanofiltration on lactose crystallisation.” Milchwissenschaft; 2001; pp. 307-310; 56(6).
Morita, et al; “Physiochemical properties of crystalline lactose. II> Effect of crystallinity on mechanical and structural properties.” Chem. Pharm. Bull.; 1984; pp. 4076-4083; 32(10).
Naini, et al.; “Physiochemical Stability of Crystalline Sugars and Their Spray-Dried Forms-Dependence upon Relative Humidity and Suitability for Use in Powder Inhalers.” Drug Development & Industrial Pharmacy; 1998; pp. 895-909; 24 (10).
Otsuka, et al.; “Isomerization of lactose in solid-state by mechanical stress during grinding.” Journal of Pharmacy Pharmacology; 1991; pp. 148-153; 43(3).
Otsuka, et al.; “Effect of humidity on solid-state isomerization of various kinds of lactose during grinding.” Journal of Pharmacy & Pharmacology; 1993; pp. 2-5; 45(1).
Perevoznikov, et al.; “Installation for fine milling of lactose crystals.” Vsesoyuznyi Nauchno-issledovatel'skii Institut Maslodel'noi Syrodel'noi Promyshlennosti; 1975; pp. 66-69, 78; 20 (Abstract Only).
Podczeck, F.; “Adhesion forces in interactive powder mixtures of a micronized drug and carrier particles of various particle size distributions.” Journal of Adhesion Science & Technology; 1998; pp. 1323-1339; 12(12).
Riepma, et al.; “Consolidation and Compaction of Powder Mixtures I. Binary Mixtures of Same Particle Size Fractions of Different Types of Crystalline Lactose.” Int. J. Pharm.; 1990; pp. 47-52; 66(1-3).
Riepma, et al.; “Consolidation and Compaction of Powder Mixtures II. Binary Mixtures of Different Particle Size Fractions of Alpha Lactose Monohydrate.” Int. J. Pharm.; 1991; pp. 9-16; 76(1-2).
Ritala, et al.; “The effect of binder solution quantity and lactose particle size on granule properties.” Acta Pharmaceutica Nordica; 1991; pp. 229-234; 3(4).
Ritala, et al.; “Effect of Lactose Grade and the Amount of Binder in Granules on the Tablet Properties.” Acta Pharm Fenn.; 1991; pp. 281-288; 100(4).
Sakr, et al.; “Effect of granule size and compression.” Manuf. Chem. Aerosol News ; 1973; pp. 29-33; 44(Feb).
Schaefer, et al.; “Melt pelletization in a high shear mixer. III. Effects of lactose quality.” Acta Pharmaceutica Nordica; 1992; pp. 245-252; 4(4).
Shi, et al.; “Crystallization kinetics of alpha-lactose monohydrate in a continuous cooling crystallizer.” Journal of Food Science; 1990; pp. 817-820; 55(3).
Spring ;“ Segregation of granules during tableting.” Journal of Pharmacy & Pharmacology; 1977; pp. 513-514; 29 (Aug).
Staniforth ; “Performance-Modifying Influences in Dry Powder Inhalation Systems.” Aerosol Science & Technology; 1995; pp. 346-353; 22(4).
Steiner, et al.; “Effects of milling on granulation particle size distribution.” Journal of Pharmaceutical Sciences; 1974; pp. 1395-1398; 63(Sep).
Tapper, et al.; “The granulation of some lactose qualities with different particle size distributions in a domestic-type mixer.” Acta Pharm. Suec.; 1986; pp. 47-56; 23(1).
Tatsumi, et al.; “Influence of load on particle size distribution of lactose fluidized powder (Japanese).” Yakuzaigaku, Faculty of Pharmaceutical Sciences; 2000; pp. 88-100; 60(1) (English Translation).
Topal, et al.; “Lactose crystallization in the presence of phosphatide concentrates (Russian).” Pishchevaya Teknologiya; 1997; pp. 58-59; (1) (Abstract Only).
Valle-Vega, et al.; “Measurement of lactose crystal growth by image analyzer.” Journal of Food Science; 1977; pp. 1069-1072; 42(4).
Van Kreveld ; “Growth rates of lactose crystals in solutions of stable anhydrous a-lactose.” Ned. Melk-Zuiveltijdschr.; 1969; pp. 258-275; 23(4).
Vojnovic, et al.; “Experimental design for a granulation process with a priori criterias.” Drug Development & Industrial Pharmacy; 1995; pp. 823-831; 21(7).
Vromans, et al.; “Studies on tableting properties of lactose. Part 2. Consolidation and compaction of different types of crystalline lactose.” Pharm. Weekbl., Sci. Ed.; 1985; pp. 186-193; 7(5).
Vromans, et al.; “Studies on tableting properties of lactose. Part 1. Effect of initial particle size on binding properties and dehydration characteristics of lactose.” Acta Pharmaceutica Suecica; 1985; pp. 163-172; 22(3).
Weyhers, et al.; “Analysis of particle size distribution of micronized lactose by laser diffractometry.” Pharmazeutische Industrie; 1996; pp. 354-357; 58(4).
Weyhers, et al.; “Analysis of particle size distribution of micronized lactose by laser diffractometry.” Drugs Made in Germany; 1997; pp. 66-69; 40(2).
Zatloukal, Z.; “Evaluation of bulk properties of mixtures of size fractions of lactose. Czech.” Ceska a Slovenska Farmacie; 1995; pp. 313-316; 44(6) (Abstract Only).
Zeng, et al.; “Effects of surface smoothness of lactose on the delivery of salbutamol sulphate from dry powder Inhalers.” Pharm. Res.; 1997; pp. S136-S137; 14(11, Suppl).
Alpar, et al.; “Compression properties of lactose.” J. of Pharmacy & Pharmacology; 1970; pp. 1S-7S; 22 (Dec Suppl).
Barrau, et al.; “Interest of the relation wetting/particle size yield in extrusion/spheronization. Application to four varieties of lactose (French).” Pharmaceutica Acta Helvetiae; 1992; pp. 124-128; 67(4) (Abstract Only).
Bernabe, et al.; “Compression Ability Improvement of Lactose by Recrystallization—Influence of Lactose Phosphate Content.” Farmaco; 1995; pp. 801-809; 50(11).
Bernabe, et al.; “An attempt at explaining the variability of the compression capacity of lactose.” Pharmaceutical Technology; 1997; pp. 66-78; 21(5).
Bernabe, et al.; “Attempt at explaining the variability of the compression capacity of lactose.” Pharmaceutical Technology International; 1997; pp. 42, 44, 46-48, 50; 9(Jan).
Bos ; “Backgrounds of technologies used for the production of lactose.” Bulletin of the International Dairy Federation; 1987; pp. 99-102; 212 (Abstract Only).
Carter, et al.; “Triboelectrification of fractionated crystalline and spray-dried lactose.” Pharmacy & Pharmacology aommunications; 1998; pp. 111-115; 4(Feb).
Cartilier, et al.; “Effect of particle morphology on the flow and packing properties of lactose.” S.T.P. Pharma Sciences; 1993; pp. 213-220; 3(3).
Cartilier, et al.; “The Effect of Particle Morphology on Flow and Packing Properties of Lactose.” Pharm. Res.; 1988' pp. S231; 5(10 Suppl).
Clarke, et al.; “The effects of ternary components on the performance of nedocromil sodium in dry powder blends for Inhalation.” Pharm. Res.; 1997; pp. S130-131; 14(11, Suppl.).
Clyne, et al.; “Lactose. The influence of particle size and structure on drug delivery.” Royal Society of Chemistry Special Publication; 1996; pp. 97-104; 178.
Darcy, et al.; “Crystallization of bulk samples of partially amorphous spray-dried lactose.” Pharmaceutical Development and Technology; 1998; pp. 503-507; 314.
Deboer, et al.; “Studies on tableting properties of lactose. Part 3. Consolidation behavior of sieve fractions of crystalline alpha-lactose monohydrate.” Pharmaceutisch Weekblad—Scientific Edition; 1986; pp. 145-150; 8(Apr 25).
Di Martino, et al.; “The batch-to-batch non-reproducibility of the compression ability of lactose. Reasons and detection.” S.T.P. Pharma Sciences; 1993; pp. 436-441; 3(6).
Eilbeck, et al.; “Effect of materials of construction of pharmaceutical processing equipment and drug delivery devices on the triboelectrification of size fractionated lactose.” Pharmacy & Pharmacology Communications; 1999; pp. 129-433; 5(Jul.).
Eilbeck, et al.; “Effect of contamination of pharmaceutical equipment on powder triboelectrification.” International Journal of Pharmaceutics; 2000; pp. 7-11; 195(Feb 15).
Embleton, et al.; “Development and in-vitro testing of PassCal dry powder formulations for the pulmonary delivery of Insulin.” Pharm. Res.; 1997; pp. S138-S139; 14(11, Suppl).
Fell, et al.; “The tensile strength of lactose tablets.” J. Pharm. Pharmcol.; 1968; pp. 657-659; 20(8).
Fell, et al.; “Assessment of compression characteristics of powders.” J. of Pharmaceutical Sciences; 1971; pp. 1428-1429; 60(Sep).
Fell, et al.; “Effect of particle size and speed of compaction on density changes in tablets of crystalline and sprayiried lactose.” J. Pharm. Sci.; 1971; pp. 1866-1869; 60(12).
Fell ; “Influence of fines on the flow and compaction properties of lactose.” J. Pharm. Pharmacology; 1973; p. 109; 25 (Suppl).
Fell ; “Flow and compaction properties of lactose.” Pharmaceutisch Weekblad ; 1976; pp. 681-685; 111 (Jul 9).
Fielden ; “Effect of lactose particle size on the extrusion properties of microcrystalline cellulose-lactose mixtures.” J. of Pharmacy & Pharmacology; 1989; pp. 217-221; 41 (Apr.).
Frake, et al.; “Near-infrared mass median particle size determination of lactose monohydrate, evaluating several chemometric approaches.” GlaxoWellcome Research and Development; 1998; pp. 2043-2046; 123(10).
Gnezdilova, et al.; “Kinetics of a-lactose crystals growth from supersaturated solutions (Russian).” Pishchevaya Tekhnologiya; 1999; pp. 65-67; (2-3) (Abstract Only).
Gohel, et al.; “Preparation of directly compressible lactose and optimization of characteristics affecting direct compression.” Indian Drugs; 1997; pp. 322-326; 34(6).
Gold, et al.; “Powder flow studies. III. Factors affecting the flow of lactose granules.” J. Pharm. Sci.; 1968; pp. 667-684; 57(4).
Griffiths, et al.; “Preliminary investigation of lactose crystallization using the population balance technique.” AlChE Symp. Ser.; 1982; pp. 118-128; 78(218).
Harris, et al.; “Effects of stressing a-lactose monohydrate on surface and particulate properties.” Congr. Int. Technol. Pharm.; 1983; pp. 21-27; vol. 1 (Abstract Only).
Heng, et al.; “Ultrafine grinding using a fluidized bed opposed jet mill: effects of process parameters on the size distribution of milled particles.” S.T.P. Pharma Sciences; 2000; pp. 445-451; 10(6).
Heng, et al.; “Quantification of the surface morphologies of lactose carriers and their effect on the in vitro deposition of salbutamol sulphate.” Chemical & Pharmaceutical Bulletin; 2000; pp. 393-398; 48(3).
Hickey, et al.; “Flow Properties of Selected Pharmaceutical Powders from a Vibrating Spatula.” Particle & Particle Systems Characterization; 1994; pp. 457-462; 11(6).
Hindle, et al.; “Size distribution control of raw materials for dry-powder inhalers using the aerosizer with the aero-disperser” Pharmaceutical Technology; 1995; pp. 64,66,68,70,72,74,76,78; 19(Jun).
Hrestak, et al.; “Investigation of the behavior of two lactose types in wet granulation process.” Famracevtski Vestnik (Ljubljana); 1997; pp. 402-403; 48.
Huettenrauch, et al.; Molecular Galenics. Part 4: mechanochemical alteration of the crystallinity degree of lactose in the milling process (German); Pharmazie; 1976; pp. 329-330; 31(5) (Abstract Only).
Hunter, et al.; “Effect of particle size on the granulation of lactose by massing and screening.” J. of Pharmacy & Pharmacology; 1972; pp. 17P -24P; 24 (Dec Suppl).
Huttenrauch, et al.; “Influence of lattice defects on the course and rate of drying of particulate solids. Part 45. Molecular pharmaceutics.” International Journal of Pharmaceutical Technology & Product Manufacture; 1981; pp. 35-37; 2(Apr).
Iida, et al.; “Effect of separation characteristics between salbutamol sulfate (SS) particles and model carrier excipients on dry powder for inhalation.” Yakugaku Zasshi. Journal of the Pharmaceutical Society of Japan; 1999; pp. 752-762; 119(10).
Inghelbrecht, et al.; “Roller compaction of different types of lactose.” International Journal of Pharmaceutics; 1998; pp. 135-144; 166(May 18).
Juslin, et al.“ Effect of fluidized bed granulation on the crystal properties of lactose, glucose and mannitol.” S.T.P. Pharma Sciences; 1996; pp. 173-178; 6(3).
Kassem, et al.; “Effect of granule size on physical standards of tablets.” Manuf. Chem. Aerosol News; 1972; pp. 24-27; 43(Aug).
Kata ; “Shear cell investigation of powder mixtures containing micronized drugs.” Acta Pharm. Technol.; 1979; pp. 203-216; 25(3) (Abstract Only).
Kay, et al.; “Design of a fluid energy single vessel powder processor for pharmaceutical use.” International Journal of Pharmaceutics; 1999; pp. 243-254; 181(2).
Keller, et al.; “Lactose crystallization and manufacturing processes.” In 'Proceedings, 1982 Whey Products Conference held at Schaumburg, Illinois; 1983; pp. 103-115 (Abstract Only).
Kristensen ; “Studies on flow properties of powders. VI. Some physical properties of crystalline and spray dried lactose.” Dansk Tidsskrift for Farmaci; 1971; pp. 114-124; 45(Apr).
Krycer, et al.; “Detection of mechanical activation during the milling of lactose monohydrate.” Int'l Journal of Pharmaceutical; 1981; pp. 55-56; 2(2) (Abstract Only).
Lallukka, et al ; “Particle size measurement of lactose powder with an electrical sensing zone method (Coulter Principle).” Meijeritieteellinen Aikakauskirja; 1986; pp. 63-73; 44(2).
Lerk, et al.; “The effect of mechanical treatment on the properties of lactose as observed by differential scanning calorimetry.” Neth. Milk Dairy J.; 1980; pp. 69-73; 34(1).
Liang, et al.; “Growth Rate Dispersion Effects on Lactose Crystal Size Distributions from a Continuous Cooling Crystallizer.” Journal of Food Science; 1991; pp. 848-854; 56(4).
Lucas, et al.; “Protein deposition from dry powder inhalers: effect of performance modifiers.” Pharm. Res.; 1997; pp. S130; 14(11, Suppl).
Bos; “Backgrounds of technologies used for the production of lactose.” Bulletin of the International Dairy Federation; 1987; pp. 99-102; 212.
Keller, et al.; “Lactose crystallization and manufacturing processes.” In 'Proceedings, 1982 Whey Products Conference held at Schaumburg, Illinois; 1983; pp. 103-115.
Krycer, et al.; “Detection of mechanical activation during the milling of lactose monohydrate.” Int'l Journal of Pharmaceutical; 1981; pp. 55-56; 2(2).
Harris, et al.; “Effects of stressing a-lactose monohydrate on surface and particulate properties.” Congr. Int. Technol. Pharm. 3rd.; 1983; pp. 21-27; vol. 1.
Related Publications (1)
Number Date Country
20090047351 A1 Feb 2009 US
Provisional Applications (1)
Number Date Country
60651755 Feb 2005 US