The present invention pertains to compositions comprising a gel material such as Gellan gum, Pregellatinized starch or Modified Starch adapted as a carrier for a pharmaceutical drug or the like. The invention further relates to an apparatus, kit and method for compounding an orally administered dosage form of a medicament.
In the medicinal field one or more coatings is desired for drug administration forms such as tablets, pills caplets and the like in order to obtain one or more of gloss, better appearance, identification, mouth feel, stability, color, swallowability, improved taste and the like.
Variety of coating material are used for medicaments especially gel materials as gellan gum.
US patent application No. 2008299199 describes a dosage form which before oral ingestion the particulate material is subjected to an aqueous medium, whereby it is converted to a semi-solid form by swelling or geling of one or more of the components, especially of a gellan gum, of the particulate matter. The invention also relates to a vehicle for oral administration of one or more active substances, the vehicle comprising a gellan gum arranged in a configuration allowing optimal water diffusion so that upon addition of a predetermined amount of an aqueous medium, without the necessity of applying shear forces or other mixing forces, within a time period of 5 minutes or less swells and/or gels and the texture of the swelled vehicle being similar to that of a soft pudding and having a viscosity of at least about 10,000 cps.
EP patent No. 0662320 further discloses a dry gel composition containing 40 wt. % or less of an orally administrable medicine, 3 wt. % or more of a geling agent and 5 wt. When mixed with a given amount of water, the composition gives a homogeneous aqueous gel composition having a viscosity of around 100 to 500 cP and preferably a thixotropy. The aqueous gel composition can be readily swallowed even by the aged having a reduced swallowing function without being aspirated into the trachea, so that it is useful for the pharmacotherapy of the aged.
US patent No. 2004033261 describes a film coated tablet wherein the tablet is film coated with a gellan gum coating composition containing gellan gum, a plasticizer, and a disintegration aid. Optionally a slip enhancer is added to the composition. A method for coating a tablet with the gellan gum composition wherein the composition is applied as a solution. A method of administering the gellan gum film coated tablet as a pharmaceutical.
The above prior art describes the formation of an aqueous gel composition and further the convenient of the use and preparation but they don't focused on the dosage form protection.
There is a desire for a product which provides enhanced tablet coating properties. The industry has recognized the need for an improved tablet coating which would provide increased gloss, better mouth feel at coating quantities at lower levels than conventionally accepted methods. The process of preparing such an improved tablet coating economically and efficiently continues to be of interest.
It therefore remains a long felt and unmet need to provide novel means and methods for an effectively composition for drug administration forms in a more effective and adjustable manner.
It is thus one object of the present invention to disclose an apparatus for compounding an orally administered dosage form of at least one medicament comprising: a container for mixing a crushed medicament with a gel-based carrier; the container comprises at least one chamber and at least one membrane as a separating element; wherein the membrane, when removed, provides a mixture of a defined dosage form of the medicament comprising the crushed medicament and the gel-based carrier; the membrane is further configured to prevent contamination, overdosing and non sanctioned abuse of active ingredient of the medicament.
It is a further object of the present invention to disclose the apparatus as defined above, wherein the container comprising at least one first chamber for accommodating a solution and at least one second chamber for accommodating a gel-based carrier; the at least one first chamber and at least one second chamber are connected with each other via a membrane for separating the first and second chambers; the membrane, when removed, provides a mixture of a defined dosage form of the medicament comprising the crushed medicament and the gel-based carrier, the first chamber and second chamber have a surface tension allowing the user to extract the mixture by pressing at least one chamber.
It is a further object of the present invention to disclose the apparatus as defined in any of the above, wherein at least one of the following hold true:
It is a further object of the present invention to disclose the apparatus as defined in any of the above, wherein at least one of the following holds true:
It is a further object of the present invention to disclose the apparatus as defined in any of the above, wherein at least one of the following holds true:
It is a further object of the present invention to disclose a kit for oral administration of at least one medicament comprising:
It is a further object of the present invention to disclose the kit as defined in any of the above, wherein the membrane, when removed, the content of each of the chamber is mixed thereby, forming a mixture of a defined dosage form of a defined medicament comprising the crushed medicament and the gel-based; the first chamber and second chamber have a surface tension allowing the user to extract the mixture by pressing at least one chamber.
It is a further object of the present invention to disclose the kit as defined in any of the above, wherein at least one of the following holds true:
It is a further object of the present invention to disclose the kit as defined in any of the above, wherein least one of the following holds true:
It is a further object of the present invention to disclose a composition solid dosage form composition for oral administration prepared by a process comprising steps of:
It is a further object of the present invention to disclose the composition as defined in any of the above, wherein the step of admixing the content is by additionally rotating the first chamber at least a half-turn membrane such that the membrane is partially broken therefore, providing a mixture of defined dosage form of a defined medicament comprising the crushed medicament and the gel-based carrier, so as to prevent contamination, overdosing and non sanctioned abuse of active ingredient of the medicament.
It is a further object of the present invention to disclose the composition as defined in any of the above, wherein at least one of the following holds true:
It is a further object of the present invention to disclose the composition as defined in any of the above, wherein at least one of the following holds true:
It is a further object of the present invention to disclose the composition as defined in any of the above, wherein at least one of the following holds true:
It is a further object of the present invention to disclose the composition as defined in any of the above, wherein at least one of the following holds true:
It is a further object of the present invention to disclose the composition as defined in any of the above, wherein at least one of the following holds true:
It is a further object of the present invention to disclose a method for preparing a composition for oral administration of at least one medicament, comprising steps of:
It is a further object of the present invention to disclose the method as defined in any of the above, wherein at least one of the following holds true:
It is a further object of the present invention to disclose the method as defined in any of the above, wherein at least one of the following holds true:
b. the method additionally comprising step of opening the membrane's orifice by using a manual action or a manual or electronic button; It is a further object of the present invention to disclose the method as defined in any of the above, wherein at least one of the following holds true:
In order to understand the invention and to see how it may be implemented in practice, a few preferred embodiments will now be described, by way of non-limiting example only, with reference to be accompanying drawings, in which:
In the following description, various aspects of the invention will be described. For the purposes of explanation, specific details are set forth in order to provide a thorough understanding of the invention. It will be apparent to one skilled in the art that there are other embodiments of the invention that differ in details without affecting the essential nature thereof. Therefore the invention is not limited by that which is illustrated in the figures and described in the specification, but only as indicated in the accompanying claims, with the proper scope determined only by the broadest interpretation of the claims.
As employed herein, the term “Gellan Gum” includes gellan gum and/or compositions of gellan gum. The composition may further comprise polymers. The Gellan gum is a water-soluble polysaccharide solution which is used without limitation, as a thickener, emulsifier, and stabilizer. The gellan gum composition may further be prepared in tap water, deionized water, or other aqueous media containing salts or other components such as colorants, flavoring agents, active ingredients such as deodorants, foods, preservatives, etc.
As employed herein, the term “Dosage Form” includes without limitation, aliquot, tablet, caplet, capsule, pill, bolus, particle, micronized particle, particulate, pellet, core, powder, granule, granulate, small mass, seed, specks, spheres, crystals, beads, agglomerates, nanoparticles, mixtures thereof and the like. Furthermore the preferred dosage form will be in a form sufficiently stable physically and chemically to be effectively mixed in a system which involves some movement of the dosage form. Virtually any tablet, placebo, the latter typically lactose or sugar or mixtures thereof and the like. Furthermore the preferred dosage form may be in a liquid form.
The invention relates to an apparatus for preparing a swallowable pharmaceutical composition for oral administration comprising at least one pharmaceutically active compound in an effective amount and further comprising a carrier consisting of gellan gum, pregellatinized starch, various kinds of native and modified starches, maltodextrin, dextrins, and a kit and a process for production thereof.
As used herein the term “about X” or “approximately X” or “substantially X” usually refers to a range 25% less than to 25% more than of X (X+−25%), at times X+−20%, X+−15% and preferably X+−10%.
The present invention provides an apparatus for compounding an orally administered dosage form of at least medicament comprising: a container for mixing a crushed medicament with a carrier. The container comprises at least one chamber and a separating element. The container may additionally comprise a collecting device for collecting the prepared composition. The apparatus is adapted to provide a defined dosage form of the medicament comprising the crushed medicament and carrier such as a gel-based carrier. The apparatus is further adapted to prevent contamination, overdosing and non sanctioned abuse of active ingredients. The container may comprise a separating element such as a membrane or any divider element such that the container is divided to at least two portions or chambers. The separating element may be a mobile part such that when it is removed the content of each section within the container is mixed. The membrane has a film-like structure for separating at least two fluid and/or solid materials. It may act as a separating structure or a selective barrier allowing some particles or chemicals to pass through, but not others. The membrane may comprises at least one pore having a diameter size for allowing medicament particles to transform from the first chamber to the second chamber. The membrane pores size is selected from the group consisting of microporous (dp<2 nm), mesoporous (2 nm<dp<50 nm), macroporous (dp>50 nm) and any combination thereof. The e can be neutral or charged, and particles which transport can be active or passive. The latter can be facilitated by pressure, concentration, chemical or electrical gradients of the membrane process.
The container may further comprise at least two separated chambers which may be located one upon the other or one parallel to another. The chambers are connected with each other via the separating element such as membrane or a divider for separating the chambers.
In another embodiment of the present invention, the apparatus may be use for multiple uses and applications or for one time use respectively.
In another embodiment of the present invention the apparatus may comprise a syringe or a dispensing needle assembly which may be attached or mounted to at least one chamber of the container. The apparatus may be a sterile apparatus which configured to prevent direct contact with the environment and helping to reduce the danger of contamination and infection.
In another embodiment of the present invention the apparatus may comprise in one chamber at least one active agent in a solid or liquid form and a sterile solution in the second chamber such as NaCL, Lidocain, Lignocain, Novocain, water injection6 and the like which can be mixed with the active agent when the membrane is removed or activated and further useful for injection.
Reference is now made to
In another embodiment of the present invention, the membrane is configured, when removed or partially broken, to provide a defined dosage form of a defined medicament so as to prevent contamination, overdosing and non sanctioned abuse of active ingredients of the medicament. The first chamber 10 may comprise at least one mold adjusted to a structure of the dosage form of at least one medicament. The mold has a cavity shape selected from the group consisting of: tablet, caplet, particle, micronized particle, particulate, pellet, pill, core, powder, granule, granulate, small mass, seed, specks, spheres, crystals, beads, agglomerates, nanoparticles or any combination thereof. The mold may further be a replaceable element which can be removed and/or replaced.
In another embodiment of the present invention, the lower chamber may comprise at least one mold adjusted to a structure of the dosage form of at least one medicament. The mold has a cavity shape selected from the group consisting of: tablet, caplet, particle, micronized particle, particulate, pellet, pill, core, powder, granule, granulate, small mass, seed, specks, spheres, crystals, beads, agglomerates, nanoparticles or any combination thereof. The mold may further be a replaceable element which can be removed and/or replaced.
The medicament mold plate may be of metal or metal alloys. The medicament triturate molds is a cavity plate which has holes. The volume of the cavities always remains constant, but the weight of the medicament dosage form will be depended upon the nature of the material. Different medicament dosage form will have different densities and so the cavity capacity must be determined for each medicament dosage form. The mold is further calibrated.
The container is adapted for customizing tamper proof production of swallowable aliquots. The separation element is a flexible membrane which separates the two chamber such that when it is removed the content of each of the chambers is mixed. The removing of the membrane allows mixing a variety of components in order to prepare a product suitable to be consumed as a pharmaceutical/cosmoceutical/veterinary.
The chambers of the container have a surface tension allowing the user to extract the mixed composition to a built-in spoon by pressing the chamber. The composition can be further molded into a desired shape or pressed onto a dispensing unit, a build in collecting element 40 selected from the group consisting of a spoon or a cap like element.
The apparatus may further comprise an instruction leaflet which describes the manner and way for using the apparatus its elements.
Reference is now made to
Reference is now made to
The apparatus may be composed of rigid or semi-rigid material selected from a group consisting of polymers, metals, metal oxides, metal alloys, wood, cellulose and any combination thereof. The apparatus and more particularly the membrane is composed of a flexible, semi rigid material selected from the group consisting of Acrylic and modified acrylic plastics, Acrylonitrile/butadiene/styrene co-polymer, Acrylonitrile/butadiene/styrene/methyl methacrylate copolymer, Acrylonitrile/styrene copolymer, n-Alkylglutarimide/acrylic copolymers, Cellophane, Cross-linked polyacrylate copolymers, 1,4-Cyclohexylene dimethylene terephthalate, 1,4-cyclohexylene dimethylene isophthalate copolymer, Ethylene-acrylic acid copolymers, Ethylene-carbon monoxide copolymers, Ethylene-1, 4-cyclohexylene dimethylene terephthalate copolymers, Ethylene-ethyl acrylate copolymers, Ethylene-methyl acrylate copolymer resins, Ethylene/1,3-phenylene oxyethylene isophthalate/terephthalate copolymer, Ethylene-vinyl acetate copolymers, Ethylene-vinyl acetate-vinyl alcohol copolymers, Fluorocarbon resins, Hydroxyethyl cellulose film, water-insoluble, Isobutylene polymers, Isobutylene-butene copolymers, Nylon resins, Olefin polymers, Perfluorocarbon resins, Polyarylate resins, Polyaryletherketone resins, Polyarylsulfone resins, Poly-1-butene resins and butene/ethylene copolymers, Polycarbonate resins, Polyestercarbonate resins, Polyester elastomers, Polyetherimide resin, Polyethylene resins, carboxyl modified, Polyethylene, chlorinated, Polyethylene, fluorinated, Polyethylene, oxidized, Polyethylene phthalate polymers, Poly(phenyleneterephthalamide) resins, Poly(p-methylstyrene) and rubber-modified poly(p-methyl styrene), Poly(oxy-1,2-ethanediyloxycarbonyl-2,6-naphthalenediylcarbonyl) resins, Polystyrene and rubber-modified polystyrene, Polysulfide polymer-polyepoxy resins, Polysulfone resins, Poly (tetramethylene terephthalate), Polyvinyl alcohol film, Polyurethane resins, Styrene block polymers, Styrene-maleic anhydride copolymers, Styrene-methyl methacrylate copolymers, Textryls, Urea-formaldehyde resins in molded articles, Melamine-formaldehyde resins in molded articles, Vinyl chloride-ethylene copolymers, Vinyl chloride-hexene-1 copolymers, Vinyl chloride-lauryl vinyl ether copolymers, Vinyl chloride-propylene copolymers, Vinylidene chloride/methyl acrylate copolymers, Vinylidene chloride/methyl acrylate/methyl methacrylate polymers and any combination thereof. The membrane may further be partially broken by rotation of the upper chamber relative to the lower chamber or by pushing, pressing or/and clicking the upper chamber. The membrane is partially broken to enable to content of the upper chamber to be transferred to the lower chamber.
The container further comprises an upper chamber for containing water and a lower portion for accommodating the gellan gum and/or additional additives. The medicament may be located in the lower chamber with the gellan gum or added and dissolved in the water located in to the upper chamber of the container.
Reference is now made to
The apparatus comprises an opening for medicament entrance 310. The opening may further comprise a medicament identifier for medicament type identification. The medicament is transferred to a crushing apparatus 330 using a pressing button 340.
The apparatus further comprises at least one chamber 360 for mixing the crushed medicament, the gel based carrier, water and salts. The apparatus additionally comprises two separated containers 390, 380 which are connected to the mixing chamber using lines 380A, 390B for supplying a sufficient amount of gel based carrier and solutions to the mixing chamber 360. The apparatus is mechanically operated using a handle 330 which activates the apparatus. The prepared mixture is transferred to a cup 350.
The present invention further provides a kit comprising a device for mixing a crushed medicament with a carrier consisting of gellan gum, pregellatinized starch or modified starch, using water and/or salt solutions. The kit for oral administration of a medicament comprises: (a) a container for mixing a crushed medicament with a carrier comprising at least one first chamber and at least one second chamber connected with each other via a membrane for separating the chambers, (b) at least one additive, (c) a crushing apparatus for crushing a medicament, (d) a collecting device and (e) a medicament.
The kit is configured to the dosage form of the medicament to prevent contamination, overdosing and non sanctioned abuse of active ingredients.
The present invention may further comprise a kit for oral administration of a medicament comprising: (a) an apparatus for compounding an orally administered dosage form of a medicament comprising: (i) a container for mixing a crushed medicament with a carrier the container comprising a first chamber and a second chamber connected with each other via a membrane for separating the chambers; (ii) a crushing apparatus for crushing a medicament; and, (iii) a collecting device; (b) a medicament, and (c) a gel-based carrier consisting of gellan gum, pregellatinized starch or modified starch;
The kit is configured to provide a defined dosage form of a defined medicament so as to prevent contamination, overdosing and non sanctioned abuse of active ingredients.
The kit comprises a container having at least two flexible chambers whilst the first chamber may comprise a gel-based carrier, additional additives and the crushed medicament; the second chamber may comprise water and salt solution. Furthermore the carrier may be located in the lower chamber and the water and salt solution may be located in the upper chamber respectively. The medicament may be further added to the upper chamber or the lower chamber.
In another embodiment of the invention, the container comprises a flexible membrane for separating the two chambers such that when the membrane is removed the content of each of the chambers is mixed. The chambers have a surface tension allowing the user to extract the mixed composition to a built-in spoon by pressing the chamber.
In another embodiment of the invention, the membrane may be a flexible membrane such that when rotating the first chamber at least a half-turn, the membrane is partially broken therefore forming an aperture allowing the content of the first chamber to pass to the second chamber. The membrane may further partially brake by tapping, knocking, raping or hitting at least one chamber thereby forming an aperture within a portion of the membrane.
By further admixing the mixture a defined dosage form of a defined medicament is formed so as to prevent contamination, overdosing and non sanctioned abuse of active ingredient of the medicament.
In another embodiment of the invention, the kit may further comprise an instruction leaflet which describes the manner and way for using its elements and further mixing a desired medicament with a carrier.
The kit of the present invention comprises a home use or doctor's office device which, by it's specific features, provides a means of taking a tablet for example, converting it to powder (by a built-in crushing apparatus or the like), mixing it with gellan gum or another carrier, to provide a swallowable and safer bolus or aliquot, all the while protecting the active ingredient.
The kit of the present invention is with the ability to produce the customized aliquots, and furthermore is with the ability to ensure that only medically sanctioned dosages can be prepared. The present invention is suitable and designed with drug administration and anti tampering and safety standards in mind.
The chamber that comprises the medicament will be adjusted to the dosage, aliquot, tablet, caplet, capsule, pill, bolus, particle, micronized particle, particulate, pellet, core, powder, granule, granulate, small mass, seed, specks, spheres, crystals, beads, nanoparticles, agglomerates, of a specific medicament to prevent contamination, overdosing and non sanctioned abuse of active ingredients.
This kit leverages a unique Home compounding approach. In another embodiment of the present invention is a lab bench and retail pharmacy scale compounding kit suitable for customizing a tailor made prescription to fit individual requirements in a dosage form that insures efficacy, swallowability, safety and compliance.
The invention relates to an easy to swallow pharmaceutical composition for oral administration comprising at least one pharmaceutically active compound in an effective amount and comprising a gel agent.
In another embodiment of the present invention, the mixed composition of the present invention may be in a solid form, a gel form or a liquid form.
The present invention proposes an improvement over the art by providing a substantially water free dosage form, containing particulate materials which are further designed for the purpose of masking the taste of drug substances and/or to provide controlled release of a drug substance or drug substances
The present invention further provides a pharmaceutical composition for improving palatability of medicaments. The invention may further provides a taste masking formulation comprising a blend of a lipid(s) in combination with an acid soluble or swellable polymer, which enables delivery of substantial amount of drug immediately, while ensuring improved palatability. Depending on the type of dosage form, the amount of polymer required for imparting palatability will vary.
Palatability of the active pharmaceutical ingredient is a very significant technical obstacle to develop a patient friendly formulation. Organoleptic properties such as taste, mouth feel, smell and the like are considerable factors in distinguishing different products and medicament for same active pharmaceutical index. Therefore the medicament palatability is influenced by a combination of sensory perceptions including taste and smell, and to a lesser extent texture, appearance, and temperature of the product undesirable taste of most drugs is one of the important factors to affect the patient compliance. Furthermore, in the case of pediatric patient for example the taste of the drug product is one f the important criteria when designing the product. Therefore taste masking of bitter drugs is required in order to improve the patient's acceptance and adherence to the particular drug therapy. Various techniques known in the field may be adapted for concealing the objectionable taste of the drug.
The present invention improves the medicament palatability by optimizing these factors. Since there is often a correlation between the chemical structure of a compound and its taste, the present invention provides an optimized composition which is adjusted to the chemical structure and dosage form of the medicament.
The present invention presents a novel technology using geling agent consisting of gellan gum, pregellatinized starch or modified Starch as a carrier and water for a pharmaceutical drug or the like whilst protecting the drug and its function. The gellan gum, pregellatinized starch or modified Starch is in a pH range of about 1-7.5.
Furthermore the present invention provides a composition, a kit and a method configured for converting a prescribed drug into a swallowable drug bolus by using a carrier gel consisting of gellan gum, pregellatinized starch or modified starch for an orally administrated medicine. The carrier is adjusted to the dosage form and amount of the medicament and further to protect the active ingredient of the medicament especially when digestion occurs. The carrier is further adjusted to the dosage, aliquot, tablet, caplet, capsule, pill, bolus, particle, micronized particle, particulate, pellet, core, powder, granule, granulate, small mass, seed, specks, spheres, crystals, beads, agglomerates, nanoparticles of a specific medicament to prevent contamination, overdosing and non sanctioned abuse of active ingredients.
The carrier is designed to hold the medicament together such that it acts as an ‘enteric coating’ or a ‘gastro-resistant’ of the active ingredient within the digestive system without adding any liquid or any other substrate. Further more the composition of the present invention provides a better swallowing form, better smell and taste of the medicament it comprises. Such a composition can be swallowed by even aged people having a weakened swallowing function without causing the improper suction in the trachea.
The gel composition can be easily prepared from a dry gel composition containing a gelling agent capable of rapidly forming a gel upon mixing with water at an ambient temperature in a range of about 20 to 30° C. The gel composition can be formed without the need of heating or cooling the composition.
The composition comprising the gellan gum carrier may further comprise an effective amount of a plasticizer, a disintegration aid, and optionally an effective amount of a slip enhancer.
The plasticizer is selected from the group consisting of propylene glycol, polyethylene glycol 400, polyethylene glycol 3350, polyethylene glycol 8000, glycerol triacetate, polysorbate 80, triethyl citrate, PLAS 2, and acetylated monoglycerides. The disintegration aid is selected from the group consisting of lecithin, pregelatinized modified corn starch, pregellatinized starch, glyceryl carpylate, sorbitan oleate, and sodium lauryl sulfate.
The gellan gum may further comprise a color or colorants or color systems for application to a colored or non colored coated or uncoated dosage form. Illustrative colors and colorants useful herein include without limitation, pigments, dyes, lakes, and oxides (including titanium dioxide) and the like, may be optionally employed with gellan gum used in practicing this invention.
The composition may further comprise binders selected from the group consisting of: hydroxypropyl cellulose, hydroxypropyl methylcellulose and polyvinylpyrrolidone.
In addition, various other ingredients may be employed in the gellan gum composition including any ingredient which is compatible or can be made compatible with the gellan gum composition useful to be mixed with dosage forms presented in this invention. Such other ingredients include, but not limited to, flavor(s), sweetener(s), mint(s), fragrance(s), active ingredient(s) and mixtures thereof and the like. Suitable sweeteners include, but are not limited to, corn syrup solids, sucrose, aspartame, neotame, maltilol, maltilol syrup, neosorb, xylitol, acesulfame, Sweet Am, fructose, brown sugar, Stevia (Butterfly Brand & Wisdom of the Ancients.) Flavors include, but are not limited to, cherry, mint, spearmint, peppermint, wintergreen, banana, coconut, wild cherry, grape, tooti fruiti, cinnamon, strawberry, orange, root beer, bubble gum, chocolate, saccharin and any combination thereof. The gellan gum may be further used as a primary coating, a secondary coating, or a tertiary coating. The gellan gum composition may be coated onto dosage forms which are uncoated or have been coated with one or more prior coatings (overcoating) of an acceptable coating composition which allows adherency with gellan gum. For example, an initial coating may comprise one or more polymers consisting of: cellulosics, dextrins, acrylics, colors, or other pharmaceutical coating material.
Typically this amount of gellan gum is that amount which is necessary to provide an effective or desired coating. The amount of gellan gum which may be added to a dosage form such as tablets in practicing this invention is that amount which provides a gellan gum having a weight gain from about 0.025% to about 30% weight percent of the total medicament weight and preferably from about 0.05% to about 5% weight percent of the total tablet weight although larger and smaller weight percents may be employed if desired
In another embodiment of the present invention, other gelling agents may be used in the present invention such as, Pionil 1500 (a product of Matsutani Chemical Industries Co., Ltd.) is used as the sodium starch phosphate, GENU GEL SWG-J (a product of Copenhagen Pectin Factory) is used as the carrageenin; Primojel (a product of Matsutani Chemical Industries Co., Ltd.) is used as the carboxymethylated starch; GENU pectin is used as the LM pectin, guaiacol is used as the guar gum; L-HPC(LH-31) and L-HPC(LH-21) are used as the low substituted hydroxypropyl cellulose; and Avicel RC-591NF is used as the mixture of crystalline cellulose and sodium carboxymethyl cellulose.
In another embodiment of the present invention, the composition of the present invention may further comprise other suitable gelling and/or swelling a vehicle and/or compositions selected from the group consisting of: hydrocolloids and hydrogelling agents such as alginic acid, sodium alginate, potassium alginate, ammonium alginate, calcium alginate, propane-1,2-diol alginate, agar, carrageenan, processed eucheuma seaweed, locust bean gum, guar gum, tragacanth, acacia gum, xanthan gum, karaya gum, tara gum, konjac, pectins, cellulose derivatives such as: methyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, ethyl methyl cellulose, carboxy methyl cellulose, sodium carboxy methyl cellulose, crosslinked sodium carboxy methyl cellulose, enzymatically hydrolysed carboxy methyl cellulose, gelatine, or mixtures thereof.
In another embodiment of the present invention, the composition may further comprise sequestrants for facilitating the dissolution of the gellan gum composition. The sequestrants which may be used in the present invention include trisodium orthophosphate (TSP), ethylenediaminetetraacetic acid (EDTA), sodium citrate, tetrasodium pyrophosphate (TSPP), sodium hexametaphosphate (Calgon) and the like. The sequestrants can be added to the aqueous media before or after introduction of the gum. Alternatively, they can be added concomitantly, for example, by preparing dry blends of gum and sequestrant. The amount of sequestrant required to completely dissolve the gum at ambient temperature is a function of the amount of gum, the number of free polyvalent cations in solution, and the particular sequestrant used. The amount of gellan gum which can be used for forming gels ranges from about 0.05-3% (wt./wt.). For many applications levels of 0.05-1% (wt./wt.) are recommended. The gums can be used singly or in combination depending on the properties of the gel which are desired. In another embodiment of the present invention, the composition may further comprise a salt selected from the group consisting of: calcium sulfate, sodium chloride, potassium sulfate, sodium carbonate, lithium chloride, tripotassium phosphate, sodium borate, potassium bromide, potassium fluoride, sodium bicarbonate, calcium chloride, magnesium chloride, sodium citrate, sodium acetate, calcium lactate, magnesium sulfate, alkali metal chlorides, sodium fluoride, organic acids such s citric, succinic, fumaric, malic, maleic, glutaric, lactic and the like; alkali metal sulfates such as sodium sulfate; dihydrogen sodium phosphate, monohydrogen sodium phosphate, disodium hydrogen phosphate, and mixtures thereof, and multivalent metal cations.
In another embodiment of the present invention, the composition can be prepared in a short time in a simplified manner just before the use.
The present invention further provides a method for preparing a composition for oral administration of a medicament, comprising the steps of: (a) providing a kit for oral administration of a medicament comprising: (i) a container for mixing a crushed medicament with a carrier comprising a lower chamber and an upper chamber connected with each other and a membrane for separating the chambers, (ii) at least one additive, (iii) a crushing apparatus for crushing a medicament, (iv) a collecting device, (v) a medicament and, (vi) a carrier consisting of gellan gum, pregellatinized starch or modified starch.
(b) crushing the medicament using a crushing apparatus, (c) adjusting the upper chamber to the dosage form of the medicament, (d) applying the gel-based carrier and the medicament to the upper chamber of the container whilst the lower chamber comprises water and salt solution, (e) removing or partially breaking the membrane of the container; and
(f) admixing the lower and upper chambers comprising gellan gum and water under shear to prepare a gellan gum composition.
The composition of the present invention may be in a solid form, a gel form or a liquid form.
In another embodiment of the invention, the method may comprise the step of applying the gel-based carrier to the first chamber of the container whilst the second chamber comprises water and salt solution. The medicament and additional additives may be applied to the first chamber together with the carrier or optionally to the second chamber together with the water.
In another embodiment of the invention the method as described above, wherein the gel-based carrier is adapted as an enteric coating of the medicament; In another embodiment of the invention the method as described above, wherein the enteric coating is adjusted to the dosage form of the medicament in order to prevent contamination, overdosing and non sanctioned abuse of active ingredients.
In another embodiment of the invention the method as described above, wherein the dosage form selected from the group consisting of: aliquot, tablet, caplet, capsule, pill, bolus, particle, micronized particle, particulate, pellet, core, powder, granule, granulate, small mass, seed, specks, spheres, crystals, beads, agglomerates, nanoparticles or any combination thereof.
In another embodiment of the invention the method as described above, wherein further comprises an effective amount of a plasticizer, a disintegration aid, or an effective amount of a slip enhancer.
In another embodiment of the invention the method as described above, wherein the gellan gum has a weight of about 0.025% to about 30% weight percent of the total medicament dosage form weight.
In another embodiment of the invention the method as described above, wherein the gellan gum has a weight of about 0.025% to about 10% weight percent of the total medicament dosage form weight.
In another embodiment of the invention the method as described above, wherein the gellan gum has a weight of preferably from about 0.05% to about 5% weight percent of the total dosage form weight.
Pregellatinized starch (800 mg), Maltodextrine (300 mg), Sweetener (Sucrazit) 80 mg, Strawberry flavoring, Pink coloring, Dexamol (Paracetamol) 500 mg, Purified water (10 ml).
The tablet was crushed using a crushed apparatus and added to the upper chamber of the container at a room temperature and standard conditions. After admixing by rotating and shaking the upper chamber at least half-turn (relatively to the lower chamber) the membrane (separating the upper and lower chamber) is broken forming an aperture in the middle of the membrane. The apparatus is of a semi rigid material such that when tapping, knocking, raping or just hitting the upper chamber the membrane will brake in the middle forming an aperture. The formed aperture allows the content of the upper chamber to be transferred to the lower chamber. The apparatus comprising the mixture was mixed again forming a homogeneous medicament composition. The prepared medicament composition was extruded by removing the upper chamber. The prepared medicament composition had a taste with pudding consistency and was further easy to swallow.
A tablet of Acetaminophen (Dexamol, 500 mg, Dexcel Pharma) was grinded to fine powder using mortar and pestle. The powder was introduced to a beaker with 100 ml of simulated gastric fluid (SGF, 37° C., pH 1.2) and were mixed slowly and gently at least 6 rounds per minute, using magnetic stirrer. 100 μL of the mixture was sampled and methanol was added up to whole content of 1 ml. The prepared sample was filtered and used for absorbance measurement (Cole-Parmer Scanning Double Beam UV/Visible Spectrophotometer). An absorbance of the prepared sample was observed at 243.5 nm.
The results show that after 25 minutes in the SGF, a 100% of acetaminophen was released to the medium, as compared with the blank measurement, thus, indicating the same release profile comparing to an in vivo medicament release profile in a patient stomach. (The In vitro drug dissolution data generated from dissolution testing experiments was further related to in vivo pharmacokinetic data by means of in vitro-in vivo correlations (IVIVC)).
Modified starch (acetylated distarch phosphate) 800 mg, Maltodextrine 500 mg Sweetener (Sucrazit) 82 mg, Strawberry flavoring, Pink coloring, CaCl2, Dexamol (Paracetamol) 500 mg, Purified water (10 ml).
The procedure of the gel preparation is identical to this of the Example 1. The prepared gel was tasty and easy to swallow.
Pregellatinized starch (800 mg), Sugar (400 mg), Orange flavoring, Orange coloring CaCl2, Dexamol (Paracetamol) (500 mg), Purified water (10 ml).
The procedure of the gel preparation is identical to this of the Example 1. The prepared gel was tasty and easy for swallowing.
Gellan Gum (50 mg), Pregellatinized starch (200 mg), Sugar (300 mg) Orange flavoring, Orange coloring, Dexamol (Paracetamol) 500 mg, Deionized water (10 ml).
The procedure of the gel preparation is identical to Example 1 except than the nature of the gellation agent.
After the preparation, the gel that contains the medicine was introduced to a beaker with 100 mL SGF equipped with magnetic stirrer. The gel particles immediately changed their texture to more solid and hard in this medium. After 120 min, a monobasic potassium phosphate (0.68 g) was added and the pH was adjusted to 6.8 by addition of 0.2 N sodium hydroxide (simulated intestinal fluid (SIF) sine pancreatin). The gel particles changed their texture with a time to more soft. Each 5 min a 100 μL of the fluid were sampled and a methanol was added up to whole volume of 1 mL. Then, the sample was filtered and an absorbance value was observed at 243.5 nm After 1 h of the measurement, the fluid was sampled each 15 min.
The results show very low release rate within 120 min (up to 6% in the SGF). After the 120 min interval (SIF), a gradual elevation of the acetaminophen release occurs. During 7.5 hours of the test, the release level reached 78%, as compared with the blank measurement. Thus, a medicine gets a protection in the stomach by the formation of a more hard gel and by critically decreased release of the medicine. After a passing along the intestine, the pH is increase and the gel swelling and releases the medicine. The release rate depends on the gel composition, the amount of the gel agents, the medicine nature, the temperature, and the pH.
Gellan Gum (100 mg), CaSO4 (25 mg), Sodium citrate (21 mg), Sugar (300 mg) Strawberry flavoring, Pink coloring, Dexamol (Paracetamol) 500 mg, Deionized water (10 mL).
The procedure of the gel preparation is identical to this of the Example 4.
Pregellatinized Starch Gel Dissolution Assay;
Each sample was prepared from pregellatinized starch (800 mg), maltodextrin (300 mg), and distilled water (10 mL). 30 sec after the preparation, each sample was placed to vial comprising aqueous media with specific pH value. A pH values were achieved by addition of HCl/NaOH to purified water and measured using a pH meter.
The dissolution was determined by visual test of each vial and by filtration of each sample via filtration paper and examining the solids.
In the aqueous media of all the pH values a time of gel dissolution was 8-11 min. So, after swallowing of the gel, it's structure destroyed within this time interval and, thus, it can't influence a medicine release.
Reference is now made to
The device and more particularly the membrane is composed of a flexible, semi rigid material selected from the group consisting of Acrylic and modified acrylic plastics, Acrylonitrile/butadiene/styrene co-polymer, Acrylonitrile/butadiene/styrene/methyl methacrylate copolymer, Acrylonitrile/styrene copolymer, n-Alkylglutarimide/acrylic copolymers, Cellophane, Cross-linked polyacrylate copolymers, 1,4-Cyclohexylene dimethylene terephthalate, 1,4-cyclohexylene dimethylene isophthalate copolymer, Ethylene-acrylic acid copolymers, Ethylene-carbon monoxide copolymers, Ethylene-1, 4-cyclohexylene dimethylene terephthalate copolymers, Ethylene-ethyl acrylate copolymers, Ethylene-methyl acrylate copolymer resins, Ethylene/1,3-phenylene oxyethylene isophthalate/terephthalate copolymer, Ethylene-vinyl acetate copolymers, Ethylene-vinyl acetate-vinyl alcohol copolymers, Fluorocarbon resins, Hydroxyethyl cellulose film, water-insoluble, Isobutylene polymers, Isobutylene-butene copolymers, Nylon resins, Olefin polymers, Perfluorocarbon resins, Polyarylate resins, Polyaryletherketone resins, Polyarylsulfone resins, Poly-1-butene resins and butene/ethylene copolymers, Polycarbonate resins, Polyestercarbonate resins, Polyester elastomers, Polyetherimide resin, Polyethylene resins, carboxyl modified, Polyethylene, chlorinated, Polyethylene, fluorinated, Polyethylene, oxidized, Polyethylene phthalate polymers, Poly(phenyleneterephthalamide) resins, Poly(p-methylstyrene) and rubber-modified poly(p-methylstyrene), Poly(oxy-1,2-ethanediyloxycarbonyl-2,6-naphthalenediylcarbonyl) resins, Polystyrene and rubber-modified polystyrene, Polysulfide polymer-polyepoxy resins, Polysulfone resins, Poly (tetramethylene terephthalate), Polyvinyl alcohol film, Polyurethane resins, Styrene block polymers, Styrene-maleic anhydride copolymers, Styrene-methyl methacrylate copolymers, Textryls, Urea-formaldehyde resins in molded articles, Melamine-formaldehyde resins in molded articles, Vinyl chloride-ethylene copolymers, Vinyl chloride-hexene-1 copolymers, Vinyl chloride-lauryl vinyl ether copolymers, Vinyl chloride-propylene copolymers, Vinylidene chloride/methyl acrylate copolymers, Vinylidene chloride/methyl acrylate/methyl methacrylate polymers and any combination thereof.
In another embodiment of the present invention, the membrane comprising a reversibly sealed orifice or aperture such that when opened, provides a mixture of a defined dosage form of the medicament comprising the crushed medicament and the gel-based carrier. The container further comprises a disposable cap for extracting the prepared mixture.
Reference is now made to
In another embodiment of the present invention, a method for preparing a composition for oral administration of at least one medicament, comprising the steps of: opening the cap, transfer crushed medicine to first chamber comprising a solution such as water, closing the cap, shaking or rotating the device for mixing the crushed medicine with the water, rotating, pushing, pulling or knocking at least one chamber thereby forming an orifice within the membrane such that the mixed solution comprising the medicine is transferred to the lower chamber. The following step is rotating at opposite direction the first chamber such that the orifice of the membrane is hermetically closed. The device is than shook for a number of seconds forming a gel formation. In order to extract the formed gel the cap is disposed by pressing the first chamber to take out the formed tasty gel using a manually operated cover.
Reference is now made to
In another embodiment of the present invention, the chambers may be configured as a piston-like such that the first chamber can be inserted within the second chamber.
In another embodiment of the present invention, at least one of the chambers may further comprise excipients (fillers) such as bulking agents or diluents selected from the group consisting of lactose, sucrose, glucose, mannitol, sorbitol, magnesium stearate, plant cellulose, calcium carbonate, calcium phosphate, ascorbic acid and any mixture thereof. The fillers are added to prevent the formation of agglomerates and means thereof. The second chamber comprising the gel-base carrier further includes a cover which can be removed when a mixture is prepared and further for administrating the mixture.
In order to extract the formed gel the cap is disposed by pressing the upper side of the first chamber to take out the formed tasty gel using a piston-like action.
Reference is now made to
In another embodiment of the present invention, the method for preparing a composition for oral administration of at least one medicament, comprising the steps of: providing a device for oral administration of a medicament comprising: a container for mixing a crushed medicament with a gel-based carrier comprising at least one first chamber and at least one second chamber connected with each other via a membrane for separating the chambers. The membrane comprising a reversibly sealed orifice, (i) a crushed medicament; and (ii) a gel-based carrier.
The method further comprises the following steps applying a gel-based carrier and a medicament to the first chamber of the container whilst the second chamber comprises water,
opening the membrane's orifice by pressing an operation button or by rotating, spinning, turning or twisting the first chamber at least a half-turn therefore, and admixing the constant of the first chamber and the second chamber forming a gel-like mixture comprising the gel-based carrier, medicament and water under shear to prepare a solid composition.
Reference in now made to
Reference is now made to
The sample mixture to be separated and analyzed is introduced, in a discrete small volume (typically microliters), into the stream of mobile phase percolating through the column. The components of the sample move through the column at different velocities, which are function of specific physical interactions with the sorbent (also called stationary phase). The velocity of each component depends on its chemical nature, on the nature of the stationary phase (column) and on the composition of the mobile phase. The time at which a specific analyte elutes (emerges from the column) thereby its retention time was measured under particular conditions and is considered an identifying characteristic of a given analyte.
The HPLC procedure and sample preparation included 5 replicate injections of first standard solution and additional 2 injections of a second standard solution were identified and analyzed. The release of paracetamol in mg dose of pharscetamol gel, 500 mg during dissolution test after 30 min, was calculated according to the following equation:
The retention time (RT) of paracetamil is 7.5+_1.0 min
As illustrated, the paracetamol retention time was detected after 7.79 minutes similar to the standard retention time.
A gel-based carrier was prepared to serve as a vehicle for oral dosage forms administration. The initial product may be a mix of dry powders containing crushed medication, turning to gel after addition of water. The gel-based carrier is characterized by gelatinization, homogeneity formulation and further API release similar as the paracetamol medication.
The gel which may be used are dispersed and neutralized carbomer-based or long dispersion and mixed cellulose-based gel.
A 100% of pregelatinized starch was used. An additional dry water soluble excipients (filler) such as sugar, ascorbic acid and sodium saccharin were used.
In 20 ml scintillation vial, ascorbic acid, sodium saccharin, pregelatinized starch and crushed Acamol tablet have been mixed. The powders were added to 10 ml of water and after shaking for a few seconds. the gel containing a crushed tablet was obtained.
Another gel formulation without any clump eas based on gum guar. Gum guar forms gels during a few seconds. The quantity of the gum guar was optimized to achieve the limits of dissolution test (see table 1)
The FDA requirements of paracetamol tablet is >85% release for 30 min both formulations are based on gum guar and on pregelatinized starch.
The release of the paracetamol from the developed gel containing crushed medication is equivalent to the release of the paracetamol from the medication
Ingredients: water, sweetener, colorant, odor and taste additives. Volume of the syrup inside a bottle is 10-30 mL.
After opening of a bottle with the syrup, a medicine powder must be inserted into the bottle, and after shaking of the mixture the tasty syrup with the medicine can be eaten.
Ingredients of a ready gel: water, gelating agent (Gelan Gum, pregellatinized starch, modified starch or other gelating agent), sweetener, colorant, odor and taste additives. The gel was prepared before a use.
The gel on basis of Gelan Gum, pregellatinized starch, modified starch or other gelating agents is ready to eating and intended for mixing with crushed medicine. The bottle (300-2000 mL) equipped with dispenser and contains gel of jelly/pudding texture. After a pushing of the dispenser, the gel may be collected into a small cup and mixed with crushed medicine. After the mixing, the tasty gel can be eaten.
This application is a national phase of PCT Application Number PCT/IL2013/051049, filed on Dec. 23, 2013, which claims priority from provisional application No. 61/745,614, filed on Dec. 23, 2012 and provisional application No. 62/015,457, filed on Jun. 22, 2014. All of these applications are hereby incorporated by reference in their entirety.
Filing Document | Filing Date | Country | Kind |
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PCT/IL2013/051049 | 12/23/2013 | WO | 00 |
Number | Date | Country | |
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61745614 | Dec 2012 | US |