Patent Grant
11684546
The present invention relates to the technical field of barrier coated surfaces, for example interior surfaces of pharmaceutical packages or other vessels for storing or other contact with fluids. Examples of suitable fluids include foods, nutritional supplements, drugs, inhalation anaesthetics, diagnostic test materials, biologically active compounds or body fluids, for example blood. The present invention also relates to a pharmaceutical package or other vessel and to a method for making a pharmaceutical package with a pH protective coating or layer between the contents and the barrier coating or layer. The present invention also relates more generally to medical articles, including articles other than packages or vessels, for example catheters.
The present disclosure also relates to improved methods for processing pharmaceutical packages or other vessels, for example multiple identical pharmaceutical packages or other vessels used for pharmaceutical preparation storage and delivery, venipuncture and other medical sample collection, and other purposes.
The resulting packages are also claimed. Such pharmaceutical packages or other vessels are used in large numbers for these purposes, and must be relatively economical to manufacture and yet highly reliable in storage and use.
One important consideration in manufacturing pharmaceutical packages or other vessels for storing or other contact with fluids, for example vials and pre-filled syringes, is that the contents of the pharmaceutical package or other vessel desirably will have a substantial shelf life. During this shelf life, it is important to isolate the material filling the pharmaceutical package or other vessel from the vessel wall containing it, or from barrier layers or other functional layers applied to the pharmaceutical package or other vessel wall to avoid leaching material from the pharmaceutical package or other vessel wall, barrier layer, or other functional layers into the prefilled contents or vice versa.
The traditional glass pharmaceutical packages or other vessels are prone to breakage or degradation during manufacture, filling operations, shipping and use, which means that glass particulates may enter the drug. The presence of glass particles has led to many FDA Warning Letters and to product recalls.
As a result, some companies have turned to plastic pharmaceutical packages or other vessels, which provide greater dimensional tolerance and less breakage than glass, but its use for primary pharmaceutical packaging remains limited due to its gas (oxygen) permeability: Plastic allows small molecule gases to permeate into (or out of) the article. The permeability of plastics to gases is significantly greater than that of glass and, in many cases (as with oxygen-sensitive drugs such as epinephrine), plastics have been unacceptable for that reason.
The problem of permeability has been addressed by adding a barrier coating or layer to the plastic pharmaceutical package where it contacts fluid contents of the package. One such barrier layer is a very thin coating of SiOx, as defined below, applied by plasma enhanced chemical vapor deposition. But, current SiOx barrier layers deposited on a package by PECVD are etched off by aqueous contents of the package having pH-values greater than 4, particularly at higher pH values. This reduces the useful shelf life of the package as its barrier efficacy is reduced.
An aspect of the invention is a vessel having a lumen defined at least in part by a wall, the wall having an interior surface facing the lumen, an outer surface, and a coating set on the interior surface comprising a tie coating or layer, a barrier coating or layer, and a pH protective coating or layer.
The tie coating or layer can comprise SiOxCy or Si(NH)xCy. In either formulation, x is from about 0.5 to about 2.4 and y is from about 0.6 to about 3. The tie coating or layer has an interior surface facing the lumen and an outer surface facing the wall interior surface.
The barrier coating or layer can comprise SiOx, wherein x is from 1.5 to 2.9. The barrier layer can be from 2 to 1000 nm thick. It can have an interior surface facing the lumen and an outer surface facing the interior surface of the tie coating or layer. The barrier coating or layer optionally is effective to reduce the ingress of atmospheric gas into the lumen compared to an vessel without a barrier coating or layer.
The pH protective coating or layer can comprise SiOxCy or Si(NH)xCy, where x is from about 0.5 to about 2.4 and y is from about 0.6 to about 3. The pH protective coating or layer can have an interior surface facing the lumen and an outer surface facing the interior surface of the barrier coating or layer.
In an embodiment, in the presence of a fluid composition contained in the lumen and having a pH between 5 and 9, the calculated shelf life of the package can be more than six months at a storage temperature of 4° C.
Many additional and alternative aspects and embodiments of the invention are also contemplated, and are described in the specification and claims that follow. Some optional features contemplated for any of the embodiments of
A vessel as previously described is contemplated in any embodiment is contemplated in any embodiment in any embodiment, in which at least a portion of the wall of the vessel comprises a cyclic olefin polymer
A vessel as previously described is contemplated in any embodiment is contemplated in any embodiment in any embodiment, comprising a syringe barrel, a vial, or a blister package.
A vessel as previously described is contemplated in any embodiment is contemplated in any embodiment in any embodiment, in which the barrier coating or layer is from 4 nm to 500 nm thick.
A vessel as previously described is contemplated in any embodiment is contemplated in any embodiment in any embodiment, in which the pH protective coating or layer comprises SiOxCy.
A vessel as previously described is contemplated in any embodiment is contemplated in any embodiment in any embodiment, in which the pH protective coating or layer is applied by PECVD of a precursor feed comprising an acyclic siloxane, a monocyclic siloxane, a polycyclic siloxane, a polysilsesquioxane, a monocyclic silazane, a polycyclic silazane, a polysilsesquiazane, a silatrane, a silquasilatrane, a silproatrane, an azasilatrane, an azasilquasiatrane, an azasilproatrane, or a combination of any two or more of these precursors.
A vessel as previously described is contemplated in any embodiment is contemplated in any embodiment in any embodiment, in which the pH protective coating or layer is applied by PECVD of a precursor feed comprising octamethylcyclotetrasiloxane (OMCTS).
A vessel as previously described is contemplated in any embodiment is contemplated in any embodiment in any embodiment, in which the pH protective coating or layer as applied is between 10 and 1000 nm thick.
A vessel as previously described is contemplated in any embodiment, in which the rate of erosion of the pH protective coating or layer, if directly contacted by a fluid composition having a pH of 8, is less than 20% of the rate of erosion of the barrier coating or layer, if directly contacted by the same fluid composition under the same conditions.
A vessel as previously described is contemplated in any embodiment, in which the pH protective coating or layer is at least coextensive with the barrier coating or layer.
A vessel as previously described is contemplated in any embodiment, in which the fluid composition removes the pH protective coating or layer at a rate of 1 nm or less of pH protective coating or layer thickness per 44 hours of contact with the fluid composition.
A vessel as previously described is contemplated in any embodiment, further comprising a lubricity coating or layer applied between the pH protective coating or layer and the lumen.
A vessel as previously described is contemplated in any embodiment, in which an FTIR absorbance spectrum of the pH protective coating or layer has a ratio greater than 0.75 between:
A vessel as previously described is contemplated in any embodiment, in which the silicon dissolution rate by a 50 mM potassium phosphate buffer diluted in water for injection, adjusted to pH 8 with concentrated nitric acid, and containing 0.2 wt. % polysorbate-80 surfactant from the vessel is less than 170 ppb/day.
A vessel as previously described is contemplated in any embodiment, in which the total silicon content of the pH protective coating or layer and barrier coating or layer, upon dissolution into 0.1 N potassium hydroxide aqueous solution at 40° C. from the vessel, is less than 66 ppm.
A vessel as previously described is contemplated in any embodiment, in which the calculated shelf life (total Si/Si dissolution rate) is more than 2 years.
A vessel as previously described is contemplated in any embodiment, wherein the pH protective coating or layer shows an O-Parameter measured with attenuated total reflection (ATR) of less than 0.4, measured as:
A vessel as previously described is contemplated in any embodiment, wherein the pH protective coating or layer shows an N-Parameter measured with attenuated total reflection (ATR) of less than 0.7, measured as:
A vessel as previously described is contemplated in any embodiment, in which the tie coating or layer is applied by PECVD of a precursor feed comprising octamethylcyclotetrasiloxane (OMCTS), tetramethyldisiloxane (TMDSO), or hexamethyldisiloxane (HMDSO).
A vessel as previously described is contemplated in any embodiment, in which the tie coating or layer is on average between 5 and 200 nm thick.
A vessel as previously described is contemplated in any embodiment, in which the tie coating or layer is at least coextensive with the barrier coating or layer.
A vessel as previously described is contemplated in any embodiment, in which the barrier coating or layer is between 10 and 200 nm thick
A vessel as previously described is contemplated in any embodiment, in which the fluid comprises a member selected from the group consisting of:
Inhalation Anesthetics
Aliflurane; Chloroform; Cyclopropane; Desflurane (Suprane); Diethyl Ether; Enflurane (Ethrane); Ethyl Chloride; Ethylene; Halothane (Fluothane); Isoflurane (Forane, Isoflo); Isopropenyl vinyl ether; Methoxyflurane; methoxyflurane; Methoxypropane; Nitrous Oxide; Roflurane; Sevoflurane (Sevorane, Ultane, Sevoflo); Teflurane; Trichloroethylene; Vinyl Ether; Xenon
Injectable Drugs
Ablavar (Gadofosveset Trisodium Injection); Abarelix Depot; Abobotulinumtoxin A Injection (Dysport); ABT-263; ABT-869; ABX-EFG; Accretropin (Somatropin Injection); Acetadote (Acetylcysteine Injection); Acetazolamide Injection (Acetazolamide Injection); Acetylcysteine Injection (Acetadote); Actemra (Tocilizumab Injection); Acthrel (Corticorelin Ovine Triflutate for Injection); Actummune; Activase; Acyclovir for Injection (Zovirax Injection); Adacel; Adalimumab; Adenoscan (Adenosine Injection); Adenosine Injection (Adenoscan); Adrenaclick; AdreView (Iobenguane I 123 Injection for Intravenous Use); Afluria; Ak-Fluor (Fluorescein Injection); Aldurazyme (Laronidase); Alglucerase Injection (Ceredase); Alkeran Injection (Melphalan Hcl Injection); Allopurinol Sodium for Injection (Aloprim); Aloprim (Allopurinol Sodium for Injection); Alprostadil; Alsuma (Sumatriptan Injection); ALTU-238; Amino Acid Injections; Aminosyn; Apidra; Apremilast; Alprostadil Dual Chamber System for Injection (Caverject Impulse); AMG 009; AMG 076; AMG 102; AMG 108; AMG 114; AMG 162; AMG 220; AMG 221; AMG 222; AMG 223; AMG 317; AMG 379; AMG 386; AMG 403; AMG 477; AMG 479; AMG 517; AMG 531; AMG 557; AMG 623; AMG 655; AMG 706; AMG 714; AMG 745; AMG 785; AMG 811; AMG 827; AMG 837; AMG 853; AMG 951; Amiodarone HCl Injection (Amiodarone HCl Injection); Amobarbital Sodium Injection (Amytal Sodium); Amytal Sodium (Amobarbital Sodium Injection); Anakinra; Anti-Abeta; Anti-Beta7; Anti-Beta20; Anti-CD4; Anti-CD20; Anti-CD40; Anti-IFNalpha; Anti-IL13; Anti-OX40L; Anti-oxLDS; Anti-NGF; Anti-NRP1; Arixtra; Amphadase (Hyaluronidase Inj); Ammonul (Sodium Phenylacetate and Sodium Benzoate Injection); Anaprox; Anzemet Injection (Dolasetron Mesylate Injection); Apidra (Insulin Glulisine [rDNA origin] Inj); Apomab; Aranesp (darbepoetin alfa); Argatroban (Argatroban Injection); Arginine Hydrochloride Injection (R-Gene 10); Aristocort; Aristospan; Arsenic Trioxide Injection (Trisenox); Articane HCl and Epinephrine Injection (Septocaine); Arzerra (Ofatumumab Injection); Asclera (Polidocanol Injection); Ataluren; Ataluren-DMD; Atenolol Inj (Tenormin I.V. Injection); Atracurium Besylate Injection (Atracurium Besylate Injection); Avastin; Azactam Injection (Aztreonam Injection); Azithromycin (Zithromax Injection); Aztreonam Injection (Azactam Injection); Baclofen Injection (Lioresal Intrathecal); Bacteriostatic Water (Bacteriostatic Water for Injection); Baclofen Injection (Lioresal Intrathecal); Bal in Oil Ampules (Dimercarprol Injection); BayHepB; BayTet; Benadryl; Bendamustine Hydrochloride Injection (Treanda); Benztropine Mesylate Injection (Cogentin); Betamethasone Injectable Suspension (Celestone Soluspan); Bexxar; Bicillin C-R 900/300 (Penicillin G Benzathine and Penicillin G Procaine Injection); Blenoxane (Bleomycin Sulfate Injection); Bleomycin Sulfate Injection (Blenoxane); Boniva Injection (Ibandronate Sodium Injection); Botox Cosmetic (OnabotulinumtoxinA for Injection); BR3-FC; Bravelle (Urofollitropin Injection); Bretylium (Bretylium Tosylate Injection); Brevital Sodium (Methohexital Sodium for Injection); Brethine; Briobacept; BTT-1023; Bupivacaine HCl; Byetta; Ca-DTPA (Pentetate Calcium Trisodium Inj); Cabazitaxel Injection (Jevtana); Caffeine Alkaloid (Caffeine and Sodium Benzoate Injection); Calcijex Injection (Calcitrol); Calcitrol (Calcijex Injection); Calcium Chloride (Calcium Chloride Injection 10%); Calcium Disodium Versenate (Edetate Calcium Disodium Injection); Campath (Altemtuzumab); Camptosar Injection (Irinotecan Hydrochloride); Canakinumab Injection (Ilaris); Capastat Sulfate (Capreomycin for Injection); Capreomycin for Injection (Capastat Sulfate); Cardiolite (Prep kit for Technetium Tc99 Sestamibi for Injection); Carticel; Cathflo; Cefazolin and Dextrose for Injection (Cefazolin Injection); Cefepime Hydrochloride; Cefotaxime; Ceftriaxone; Cerezyme; Carnitor Injection; Caverject; Celestone Soluspan; Celsior; Cerebyx (Fosphenytoin Sodium Injection); Ceredase (Alglucerase Injection); Ceretec (Technetium Tc99m Exametazime Injection); Certolizumab; CF-101; Chloramphenicol Sodium Succinate (Chloramphenicol Sodium Succinate Injection); Chloramphenicol Sodium Succinate Injection (Chloramphenicol Sodium Succinate); Cholestagel (Colesevelam HCL); Choriogonadotropin Alfa Injection (Ovidrel); Cimzia; Cisplatin (Cisplatin Injection); Clolar (Clofarabine Injection); Clomiphine Citrate; Clonidine Injection (Duraclon); Cogentin (Benztropine Mesylate Injection); Colistimethate Injection (Coly-Mycin M); Coly-Mycin M (Colistimethate Injection); Compath; Conivaptan Hcl Injection (Vaprisol); Conjugated Estrogens for Injection (Premarin Injection); Copaxone; Corticorelin Ovine Triflutate for Injection (Acthrel); Corvert (Ibutilide Fumarate Injection); Cubicin (Daptomycin Injection); CF-101; Cyanokit (Hydroxocobalamin for Injection); Cytarabine Liposome Injection (DepoCyt); Cyanocobalamin; Cytovene (ganciclovir); D.H.E. 45; Dacetuzumab; Dacogen (Decitabine Injection); Dalteparin; Dantrium IV (Dantrolene Sodium for Injection); Dantrolene Sodium for Injection (Dantrium IV); Daptomycin Injection (Cubicin); Darbepoietin Alfa; DDAVP Injection (Desmopressin Acetate Injection); Decavax; Decitabine Injection (Dacogen); Dehydrated Alcohol (Dehydrated Alcohol Injection); Denosumab Injection (Prolia); Delatestryl; Delestrogen; Delteparin Sodium; Depacon (Valproate Sodium Injection); Depo Medrol (Methylprednisolone Acetate Injectable Suspension); DepoCyt (Cytarabine Liposome Injection); DepoDur (Morphine Sulfate XR Liposome Injection); Desmopressin Acetate Injection (DDAVP Injection); Depo-Estradiol; Depo-Provera 104 mg/ml; Depo-Provera 150 mg/ml; Depo-Testosterone; Dexrazoxane for Injection, Intravenous Infusion Only (Totect); Dextrose/Electrolytes; Dextrose and Sodium Chloride Inj (Dextrose 5% in 0.9% Sodium Chloride); Dextrose; Diazepam Injection (Diazepam Injection); Digoxin Injection (Lanoxin Injection); Dilaudid-HP (Hydromorphone Hydrochloride Injection); Dimercarprol Injection (Bal in Oil Ampules); Diphenhydramine Injection (Benadryl Injection); Dipyridamole Injection (Dipyridamole Injection); DMOAD; Docetaxel for Injection (Taxotere); Dolasetron Mesylate Injection (Anzemet Injection); Doribax (Doripenem for Injection); Doripenem for Injection (Doribax); Doxercalciferol Injection (Hectorol Injection); Doxil (Doxorubicin Hcl Liposome Injection); Doxorubicin Hcl Liposome Injection (Doxil); Duraclon (Clonidine Injection); Duramorph (Morphine Injection); Dysport (Abobotulinumtoxin A Injection); Ecallantide Injection (Kalbitor); EC-Naprosyn (naproxen); Edetate Calcium Disodium Injection (Calcium Disodium Versenate); Edex (Alprostadil for Injection); Engerix; Edrophonium Injection (Enlon); Eliglustat Tartate; Eloxatin (Oxaliplatin Injection); Emend Injection (Fosaprepitant Dimeglumine Injection); Enalaprilat Injection (Enalaprilat Injection); Enlon (Edrophonium Injection); Enoxaparin Sodium Injection (Lovenox); Eovist (Gadoxetate Disodium Injection); Enbrel (etanercept); Enoxaparin; Epicel; Epinepherine; Epipen; Epipen Jr.; Epratuzumab; Erbitux; Ertapenem Injection (Invanz); Erythropoieten; Essential Amino Acid Injection (Nephramine); Estradiol Cypionate; Estradiol Valerate; Etanercept; Exenatide Injection (Byetta); Evlotra; Fabrazyme (Adalsidase beta); Famotidine Injection; FDG (Fludeoxyglucose F 18 Injection); Feraheme (Ferumoxytol Injection); Feridex I.V. (Ferumoxides Injectable Solution); Fertinex; Ferumoxides Injectable Solution (Feridex I.V.); Ferumoxytol Injection (Feraheme); Flagyl Injection (Metronidazole Injection); Fluarix; Fludara (Fludarabine Phosphate); Fludeoxyglucose F 18 Injection (FDG); Fluorescein Injection (Ak-Fluor); Follistim AQ Cartridge (Follitropin Beta Injection); Follitropin Alfa Injection (Gonal-f RFF); Follitropin Beta Injection (Follistim AQ Cartridge); Folotyn (Pralatrexate Solution for Intravenous Injection); Fondaparinux; Forteo (Teriparatide (rDNA origin) Injection); Fostamatinib; Fosaprepitant Dimeglumine Injection (Emend Injection); Foscarnet Sodium Injection (Foscavir); Foscavir (Foscarnet Sodium Injection); Fosphenytoin Sodium Injection (Cerebyx); Fospropofol Disodium Injection (Lusedra); Fragmin; Fuzeon (enfuvirtide); GA101; Gadobenate Dimeglumine Injection (Multihance); Gadofosveset Trisodium Injection (Ablavar); Gadoteridol Injection Solution (ProHance); Gadoversetamide Injection (OptiMARK); Gadoxetate Disodium Injection (Eovist); Ganirelix (Ganirelix Acetate Injection); Gardasil; GC1008; GDFD; Gemtuzumab Ozogamicin for Injection (Mylotarg); Genotropin; Gentamicin Injection; GENZ-112638; Golimumab Injection (Simponi Injection); Gonal-f RFF (Follitropin Alfa Injection); Granisetron Hydrochloride (Kytril Injection); Gentamicin Sulfate; Glatiramer Acetate; Glucagen; Glucagon; HAE1; Haldol (Haloperidol Injection); Havrix; Hectorol Injection (Doxercalciferol Injection); Hedgehog Pathway Inhibitor; Heparin; Herceptin; hG-CSF; Humalog; Human Growth Hormone; Humatrope; HuMax; Humegon; Humira; Humulin; Ibandronate Sodium Injection (Boniva Injection); Ibuprofen Lysine Injection (NeoProfen); Ibutilide Fumarate Injection (Corvert); Idamycin PFS (Idarubicin Hydrochloride Injection); Idarubicin Hydrochloride Injection (Idamycin PFS); Ilaris (Canakinumab Injection); Imipenem and Cilastatin for Injection (Primaxin I.V.); Imitrex; Incobotulinumtoxin A for Injection (Xeomin); Increlex (Mecasermin [rDNA origin] Injection); Indocin IV (Indomethacin Inj); Indomethacin Inj (Indocin IV); Infanrix; Innohep; Insulin; Insulin Aspart [rDNA origin] Inj (NovoLog); Insulin Glargine [rDNA origin] Injection (Lantus); Insulin Glulisine [rDNA origin] Inj (Apidra); Interferon alfa-2b, Recombinant for Injection (Intron A); Intron A (Interferon alfa-2b, Recombinant for Injection); Invanz (Ertapenem Injection); Invega Sustenna (Paliperidone Palmitate Extended-Release Injectable Suspension); Invirase (saquinavir mesylate); Iobenguane I 123 Injection for Intravenous Use (AdreView); lopromide Injection (Ultravist); loversol Injection (Optiray Injection); Iplex (Mecasermin Rinfabate [rDNA origin] Injection); Iprivask; Irinotecan Hydrochloride (Camptosar Injection); Iron Sucrose Injection (Venofer); Istodax (Romidepsin for Injection); Itraconazole Injection (Sporanox Injection); Jevtana (Cabazitaxel Injection); Jonexa; Kalbitor (Ecallantide Injection); KCL in D5NS (Potassium Chloride in 5% Dextrose and Sodium Chloride Injection); KCL in D5W; KCL in NS; Kenalog 10 Injection (Triamcinolone Acetonide Injectable Suspension); Kepivance (Palifermin); Keppra Injection (Levetiracetam); Keratinocyte; KFG; Kinase Inhibitor; Kineret (Anakinra); Kinlytic (Urokinase Injection); Kinrix; Klonopin (clonazepam); Kytril Injection (Granisetron Hydrochloride); lacosamide Tablet and Injection (Vimpat); Lactated Ringer's; Lanoxin Injection (Digoxin Injection); Lansoprazole for Injection (Prevacid I.V.); Lantus; Leucovorin Calcium (Leucovorin Calcium Injection); Lente (L); Leptin; Levemir; Leukine Sargramostim; Leuprolide Acetate; Levothyroxine; Levetiracetam (Keppra Injection); Lovenox; Levocarnitine Injection (Carnitor Injection); Lexiscan (Regadenoson Injection); Lioresal Intrathecal (Baclofen Injection); Liraglutide [rDNA] Injection (Victoza); Lovenox (Enoxaparin Sodium Injection); Lucentis (Ranibizumab Injection); Lumizyme; Lupron (Leuprolide Acetate Injection); Lusedra (Fospropofol Disodium Injection); Maci; Magnesium Sulfate (Magnesium Sulfate Injection); Mannitol Injection (Mannitol IV); Marcaine (Bupivacaine Hydrochloride and Epinephrine Injection); Maxipime (Cefepime Hydrochloride for Injection); MDP Multidose Kit of Technetium Injection (Technetium Tc99m Medronate Injection); Mecasermin [rDNA origin] Injection (Increlex); Mecasermin Rinfabate [rDNA origin] Injection (Iplex); Melphalan Hcl Injection (Alkeran Injection); Methotrexate; Menactra; Menopur (Menotropins Injection); Menotropins for Injection (Repronex); Methohexital Sodium for Injection (Brevital Sodium); Methyldopate Hydrochloride Injection, Solution (Methyldopate Hcl); Methylene Blue (Methylene Blue Injection); Methylprednisolone Acetate Injectable Suspension (Depo Medrol); MetMab; Metoclopramide Injection (Reglan Injection); Metrodin (Urofollitropin for Injection); Metronidazole Injection (Flagyl Injection); Miacalcin; Midazolam (Midazolam Injection); Mimpara (Cinacalet); Minocin Injection (Minocycline Inj); Minocycline Inj (Minocin Injection); Mipomersen; Mitoxantrone for Injection Concentrate (Novantrone); Morphine Injection (Duramorph); Morphine Sulfate XR Liposome Injection (DepoDur); Morrhuate Sodium (Morrhuate Sodium Injection); Motesanib; Mozobil (Plerixafor Injection); Multihance (Gadobenate Dimeglumine Injection); Multiple Electrolytes and Dextrose Injection; Multiple Electrolytes Injection; Mylotarg (Gemtuzumab Ozogamicin for Injection); Myozyme (Alglucosidase alfa); Nafcillin Injection (Nafcillin Sodium); Nafcillin Sodium (Nafcillin Injection); Naltrexone XR Inj (Vivitrol); Naprosyn (naproxen); NeoProfen (Ibuprofen Lysine Injection); Nandrol Decanoate; Neostigmine Methylsulfate (Neostigmine Methylsulfate Injection); NEO-GAA; NeoTect (Technetium Tc 99m Depreotide Injection); Nephramine (Essential Amino Acid Injection); Neulasta (pegfilgrastim); Neupogen (Filgrastim); Novolin; Novolog; NeoRecormon; Neutrexin (Trimetrexate Glucuronate Inj); NPH (N); Nexterone (Amiodarone HCl Injection); Norditropin (Somatropin Injection); Normal Saline (Sodium Chloride Injection); Novantrone (Mitoxantrone for Injection Concentrate); Novolin 70/30 Innolet (70% NPH, Human Insulin Isophane Suspension and 30% Regular, Human Insulin Injection); NovoLog (Insulin Aspart [rDNA origin] Inj); Nplate (romiplostim); Nutropin (Somatropin (rDNA origin) for Inj); Nutropin AQ; Nutropin Depot (Somatropin (rDNA origin) for Inj); Octreotide Acetate Injection (Sandostatin LAR); Ocrelizumab; Ofatumumab Injection (Arzerra); Olanzapine Extended Release Injectable Suspension (Zyprexa Relprevv); Omnitarg; Omnitrope (Somatropin [rDNA origin] Injection); Ondansetron Hydrochloride Injection (Zofran Injection); OptiMARK (Gadoversetamide Injection); Optiray Injection (loversol Injection); Orencia; Osmitrol Injection in Aviva (Mannitol Injection in Aviva Plastic Vessel); Osmitrol Injection in Viaflex (Mannitol Injection in Viaflex Plastic Vessel); Osteoprotegrin; Ovidrel (Choriogonadotropin Alfa Injection); Oxacillin (Oxacillin for Injection); Oxaliplatin Injection (Eloxatin); Oxytocin Injection (Pitocin); Paliperidone Palmitate Extended-Release Injectable Suspension (Invega Sustenna); Pamidronate Disodium Injection (Pamidronate Disodium Injection); Panitumumab Injection for Intravenous Use (Vectibix); Papaverine Hydrochloride Injection (Papaverine Injection); Papaverine Injection (Papaverine Hydrochloride Injection); Parathyroid Hormone; Paricalcitol Injection Fliptop Vial (Zemplar Injection); PARP Inhibitor; Pediarix; PEGIntron; Peginterferon; Pegfilgrastim; Penicillin G Benzathine and Penicillin G Procaine; Pentetate Calcium Trisodium Inj (Ca-DTPA); Pentetate Zinc Trisodium Injection (Zn-DTPA); Pepcid Injection (Famotidine Injection); Pergonal; Pertuzumab; Phentolamine Mesylate (Phentolamine Mesylate for Injection); Physostigmine Salicylate (Physostigmine Salicylate (injection)); Physostigmine Salicylate (injection) (Physostigmine Salicylate); Piperacillin and Tazobactam Injection (Zosyn); Pitocin (Oxytocin Injection); Plasma-Lyte 148 (Multiple Electrolytes Inj); Plasma-Lyte 56 and Dextrose (Multiple Electrolytes and Dextrose Injection in Viaflex Plastic Vessel); PlasmaLyte; Plerixafor Injection (Mozobil); Polidocanol Injection (Asclera); Potassium Chloride; Pralatrexate Solution for Intravenous Injection (Folotyn); Pramlintide Acetate Injection (Symlin); Premarin Injection (Conjugated Estrogens for Injection); Prep kit for Technetium Tc99 Sestamibi for Injection (Cardiolite); Prevacid I.V. (Lansoprazole for Injection); Primaxin I.V. (Imipenem and Cilastatin for Injection); Prochymal; Procrit; Progesterone; ProHance (Gadoteridol Injection Solution); Prolia (Denosumab Injection); Promethazine HCl Injection (Promethazine Hydrochloride Injection); Propranolol Hydrochloride Injection (Propranolol Hydrochloride Injection); Quinidine Gluconate Injection (Quinidine Injection); Quinidine Injection (Quinidine Gluconate Injection); R-Gene 10 (Arginine Hydrochloride Injection); Ranibizumab Injection (Lucentis); Ranitidine Hydrochloride Injection (Zantac Injection); Raptiva; Reclast (Zoledronic Acid Injection); Recombivarix HB; Regadenoson Injection (Lexiscan); Reglan Injection (Metoclopramide Injection); Remicade; Renagel; Renvela (Sevelamer Carbonate); Repronex (Menotropins for Injection); Retrovir IV (Zidovudine Injection); rhApo2L/TRAIL; Ringer's and 5% Dextrose Injection (Ringers in Dextrose); Ringer's Injection (Ringers Injection); Rituxan; Rituximab; Rocephin (ceftriaxone); Rocuronium Bromide Injection (Zemuron); Roferon-A (interferon alfa-2a); Romazicon (flumazenil); Romidepsin for Injection (Istodax); Saizen (Somatropin Injection); Sandostatin LAR (Octreotide Acetate Injection); Sclerostin Ab; Sensipar (cinacalcet); Sensorcaine (Bupivacaine HCl Injections); Septocaine (Articane HCl and Epinephrine Injection); Serostim LQ (Somatropin (rDNA origin) Injection); Simponi Injection (Golimumab Injection); Sodium Acetate (Sodium Acetate Injection); Sodium Bicarbonate (Sodium Bicarbonate 5% Injection); Sodium Lactate (Sodium Lactate Injection in AVIVA); Sodium Phenylacetate and Sodium Benzoate Injection (Ammonul); Somatropin (rDNA origin) for Inj (Nutropin); Sporanox Injection (Itraconazole Injection); Stelara Injection (Ustekinumab); Stemgen; Sufenta (Sufentanil Citrate Injection); Sufentanil Citrate Injection (Sufenta); Sumavel; Sumatriptan Injection (Alsuma); Symlin; Symlin Pen; Systemic Hedgehog Antagonist; Synvisc-One (Hylan G-F 20 Single Intra-articular Injection); Tarceva; Taxotere (Docetaxel for Injection); Technetium Tc 99m; Telavancin for Injection (Vibativ); Temsirolimus Injection (Torisel); Tenormin I.V. Injection (Atenolol Inj); Teriparatide (rDNA origin) Injection (Forteo); Testosterone Cypionate; Testosterone Enanthate; Testosterone Propionate; Tev-Tropin (Somatropin, rDNA Origin, for Injection); tgAAC94; Thallous Chloride; Theophylline; Thiotepa (Thiotepa Injection); Thymoglobulin (Anti-Thymocyte Globulin (Rabbit); Thyrogen (Thyrotropin Alfa for Injection); Ticarcillin Disodium and Clavulanate Potassium Galaxy (Timentin Injection); Tigan Injection (Trimethobenzamide Hydrochloride Injectable); Timentin Injection (Ticarcillin Disodium and Clavulanate Potassium Galaxy); TNKase; Tobramycin Injection (Tobramycin Injection); Tocilizumab Injection (Actemra); Torisel (Temsirolimus Injection); Totect (Dexrazoxane for Injection, Intravenous Infusion Only); Trastuzumab-DM1; Travasol (Amino Acids (Injection)); Treanda (Bendamustine Hydrochloride Injection); Trelstar (Triptorelin Pamoate for Injectable Suspension); Triamcinolone Acetonide; Triamcinolone Diacetate; Triamcinolone Hexacetonide Injectable Suspension (Aristospan Injection 20 mg); Triesence (Triamcinolone Acetonide Injectable Suspension); Trimethobenzamide Hydrochloride Injectable (Tigan Injection); Trimetrexate Glucuronate Inj (Neutrexin); Triptorelin Pamoate for Injectable Suspension (Trelstar); Twinject; Trivaris (Triamcinolone Acetonide Injectable Suspension); Trisenox (Arsenic Trioxide Injection); Twinrix; Typhoid Vi; Ultravist (lopromide Injection); Urofollitropin for Injection (Metrodin); Urokinase Injection (Kinlytic); Ustekinumab (Stelara Injection); Ultralente (U); Valium (diazepam); Valproate Sodium Injection (Depacon); Valtropin (Somatropin Injection); Vancomycin Hydrochloride (Vancomycin Hydrochloride Injection); Vancomycin Hydrochloride Injection (Vancomycin Hydrochloride); Vaprisol (Conivaptan Hcl Injection); VAQTA; Vasovist (Gadofosveset Trisodium Injection for Intravenous Use); Vectibix (Panitumumab Injection for Intravenous Use); Venofer (Iron Sucrose Injection); Verteporfin Inj (Visudyne); Vibativ (Telavancin for Injection); Victoza (Liraglutide [rDNA] Injection); Vimpat (lacosamide Tablet and Injection); Vinblastine Sulfate (Vinblastine Sulfate Injection); Vincasar PFS (Vincristine Sulfate Injection); Victoza; Vincristine Sulfate (Vincristine Sulfate Injection); Visudyne (Verteporfin Inj); Vitamin B-12; Vivitrol (Naltrexone XR Inj); Voluven (Hydroxyethyl Starch in Sodium Chloride Injection); Xeloda; Xenical (orlistat); Xeomin (Incobotulinumtoxin A for Injection); Xolair; Zantac Injection (Ranitidine Hydrochloride Injection); Zemplar Injection (Paricalcitol Injection Fliptop Vial); Zemuron (Rocuronium Bromide Injection); Zenapax (daclizumab); Zevalin; Zidovudine Injection (Retrovir IV); Zithromax Injection (Azithromycin); Zn-DTPA (Pentetate Zinc Trisodium Injection); Zofran Injection (Ondansetron Hydrochloride Injection); Zingo; Zoledronic Acid for Inj (Zometa); Zoledronic Acid Injection (Reclast); Zometa (Zoledronic Acid for Inj); Zosyn (Piperacillin and Tazobactam Injection); Zyprexa Relprevv (Olanzapine Extended Release Injectable Suspension)
Liquid Drugs (Non-Injectable)
Abilify; AccuNeb (Albuterol Sulfate Inhalation Solution); Actidose Aqua (Activated Charcoal Suspension); Activated Charcoal Suspension (Actidose Aqua); Advair; Agenerase Oral Solution (Amprenavir Oral Solution); Akten (Lidocaine Hydrochloride Ophthalmic Gel); Alamast (Pemirolast Potassium Ophthalmic Solution); Albumin (Human) 5% Solution (Buminate 5%); Albuterol Sulfate Inhalation Solution; Alinia; Alocril; Alphagan; Alrex; Alvesco; Amprenavir Oral Solution; Analpram-HC; Arformoterol Tartrate Inhalation Solution (Brovana); Aristospan Injection 20 mg (Triamcinolone Hexacetonide Injectable Suspension); Asacol; Asmanex; Astepro; Astepro (Azelastine Hydrochloride Nasal Spray); Atrovent Nasal Spray (Ipratropium Bromide Nasal Spray); Atrovent Nasal Spray 0.06; Augmentin ES-600; Azasite (Azithromycin Ophthalmic Solution); Azelaic Acid (Finacea Gel); Azelastine Hydrochloride Nasal Spray (Astepro); Azelex (Azelaic Acid Cream); Azopt (Brinzolamide Ophthalmic Suspension); Bacteriostatic Saline; Balanced Salt; Bepotastine; Bactroban Nasal; Bactroban; Beclovent; Benzac W; Betimol; Betoptic S; Bepreve; Bimatoprost Ophthalmic Solution; Bleph 10 (Sulfacetamide Sodium Ophthalmic Solution 10%); Brinzolamide Ophthalmic Suspension (Azopt); Bromfenac Ophthalmic Solution (Xibrom); Bromhist; Brovana (Arformoterol Tartrate Inhalation Solution); Budesonide Inhalation Suspension (Pulmicort Respules); Cambia (Diclofenac Potassium for Oral Solution); Capex; Carac; Carboxine-PSE; Carnitor; Cayston (Aztreonam for Inhalation Solution); Cellcept; Centany; Cerumenex; Ciloxan Ophthalmic Solution (Ciprofloxacin HCL Ophthalmic Solution); Ciprodex; Ciprofloxacin HCL Ophthalmic Solution (Ciloxan Ophthalmic Solution); Clemastine Fumarate Syrup (Clemastine Fumarate Syrup); CoLyte (PEG Electrolytes Solution); Combiven; Comtan; Condylox; Cordran; Cortisporin Ophthalmic Suspension; Cortisporin Otic Suspension; Cromolyn Sodium Inhalation Solution (Intal Nebulizer Solution); Cromolyn Sodium Ophthalmic Solution (Opticrom); Crystalline Amino Acid Solution with Electrolytes (Aminosyn Electrolytes); Cutivate; Cuvposa (Glycopyrrolate Oral Solution); Cyanocobalamin (CaloMist Nasal Spray); Cyclosporine Oral Solution (Gengraf Oral Solution); Cyclogyl; Cysview (Hexaminolevulinate Hydrochloride Intravesical Solution); DermOtic Oil (Fluocinolone Acetonide Oil Ear Drops); Desmopressin Acetate Nasal Spray; DDAVP; Derma-Smoothe/FS; Dexamethasone Intensol; Dianeal Low Calcium; Dianeal PD; Diclofenac Potassium for Oral Solution (Cambia); Didanosine Pediatric Powder for Oral Solution (Videx); Differin; Dilantin 125 (Phenytoin Oral Suspension); Ditropan; Dorzolamide Hydrochloride Ophthalmic Solution (Trusopt); Dorzolamide Hydrochloride-Timolol Maleate Ophthalmic Solution (Cosopt); Dovonex Scalp (Calcipotriene Solution); Doxycycline Calcium Oral Suspension (Vibramycin Oral); Efudex; Elaprase (Idursulfase Solution); Elestat (Epinastine HCl Ophthalmic Solution); Elocon; Epinastine HCl Ophthalmic Solution (Elestat); Epivir HBV; Epogen (Epoetin alfa); Erythromycin Topical Solution 1.5% (Staticin); Ethiodol (Ethiodized Oil); Ethosuximide Oral Solution (Zarontin Oral Solution); Eurax; Extraneal (Icodextrin Peritoneal Dialysis Solution); Felbatol; Feridex I.V. (Ferumoxides Injectable Solution); Flovent; Floxin Otic (Ofloxacin Otic Solution); Flo-Pred (Prednisolone Acetate Oral Suspension); Fluoroplex; Flunisolide Nasal Solution (Flunisolide Nasal Spray 0.025%); Fluorometholone Ophthalmic Suspension (FML); Flurbiprofen Sodium Ophthalmic Solution (Ocufen); FML; Foradil; Formoterol Fumarate Inhalation Solution (Perforomist); Fosamax; Furadantin (Nitrofurantoin Oral Suspension); Furoxone; Gammagard Liquid (Immune Globulin Intravenous (Human) 10%); Gantrisin (Acetyl Sulfisoxazole Pediatric Suspension); Gatifloxacin Ophthalmic Solution (Zymar); Gengraf Oral Solution (Cyclosporine Oral Solution); Glycopyrrolate Oral Solution (Cuvposa); Halcinonide Topical Solution (Halog Solution); Halog Solution (Halcinonide Topical Solution); HEP-LOCK U/P (Preservative-Free Heparin Lock Flush Solution); Heparin Lock Flush Solution (Hepflush 10); Hexaminolevulinate Hydrochloride Intravesical Solution (Cysview); Hydrocodone Bitartrate and Acetaminophen Oral Solution (Lortab Elixir); Hydroquinone 3% Topical Solution (Melquin-3 Topical Solution); IAP Antagonist; Isopto; Ipratropium Bromide Nasal Spray (Atrovent Nasal Spray); Itraconazole Oral Solution (Sporanox Oral Solution); Ketorolac Tromethamine Ophthalmic Solution (Acular LS); Kaletra; Lanoxin; Lexiva; Leuprolide Acetate for Depot Suspension (Lupron Depot 11.25 mg); Levobetaxolol Hydrochloride Ophthalmic Suspension (Betaxon); Levocarnitine Tablets, Oral Solution, Sugar-Free (Carnitor); Levofloxacin Ophthalmic Solution 0.5% (Quixin); Lidocaine HCl Sterile Solution (Xylocaine MPF Sterile Solution); Lok Pak (Heparin Lock Flush Solution); Lorazepam Intensol; Lortab Elixir (Hydrocodone Bitartrate and Acetaminophen Oral Solution); Lotemax (Loteprednol Etabonate Ophthalmic Suspension); Loteprednol Etabonate Ophthalmic Suspension (Alrex); Low Calcium Peritoneal Dialysis Solutions (Dianeal Low Calcium); Lumigan (Bimatoprost Ophthalmic Solution 0.03% for Glaucoma); Lupron Depot 11.25 mg (Leuprolide Acetate for Depot Suspension); Megestrol Acetate Oral Suspension (Megestrol Acetate Oral Suspension); MEK Inhibitor; Mepron; Mesnex; Mestinon; Mesalamine Rectal Suspension Enema (Rowasa); Melquin-3 Topical Solution (Hydroquinone 3% Topical Solution); MetMab; Methyldopate Hcl (Methyldopate Hydrochloride Injection, Solution); Methylin Oral Solution (Methylphenidate HCl Oral Solution 5 mg/5 mL and 10 mg/5 mL); Methylprednisolone Acetate Injectable Suspension (Depo Medrol); Methylphenidate HCl Oral Solution 5 mg/5 mL and 10 mg/5 mL (Methylin Oral Solution); Methylprednisolone sodium succinate (Solu Medrol); Metipranolol Ophthalmic Solution (Optipranolol); Migranal; Miochol-E (Acetylcholine Chloride Intraocular Solution); Micro-K for Liquid Suspension (Potassium Chloride Extended Release Formulation for Liquid Suspension); Minocin (Minocycline Hydrochloride Oral Suspension); Nasacort; Neomycin and Polymyxin B Sulfates and Hydrocortisone; Nepafenac Ophthalmic Suspension (Nevanac); Nevanac (Nepafenac Ophthalmic Suspension); Nitrofurantoin Oral Suspension (Furadantin); Noxafil (Posaconazole Oral Suspension); Nystatin (oral) (Nystatin Oral Suspension); Nystatin Oral Suspension (Nystatin (oral)); Ocufen (Flurbiprofen Sodium Ophthalmic Solution); Ofloxacin Ophthalmic Solution (Ofloxacin Ophthalmic Solution); Ofloxacin Otic Solution (Floxin Otic); Olopatadine Hydrochloride Ophthalmic Solution (Pataday); Opticrom (Cromolyn Sodium Ophthalmic Solution); Optipranolol (Metipranolol Ophthalmic Solution); Patanol; Pediapred; PerioGard; Phenytoin Oral Suspension (Dilantin 125); Phisohex; Posaconazole Oral Suspension (Noxafil); Potassium Chloride Extended Release Formulation for Liquid Suspension (Micro-K for Liquid Suspension); Pataday (Olopatadine Hydrochloride Ophthalmic Solution); Patanase Nasal Spray (Olopatadine Hydrochloride Nasal Spray); PEG Electrolytes Solution (CoLyte); Pemirolast Potassium Ophthalmic Solution (Alamast); Penlac (Ciclopirox Topical Solution); PENNSAID (Diclofenac Sodium Topical Solution); Perforomist (Formoterol Fumarate Inhalation Solution); Peritoneal Dialysis Solution; Phenylephrine Hydrochloride Ophthalmic Solution (Neo-Synephrine); Phospholine Iodide (Echothiophate Iodide for Ophthalmic Solution); Podofilox (Podofilox Topical Solution); Pred Forte (Prednisolone Acetate Ophthalmic Suspension); Pralatrexate Solution for Intravenous Injection (Folotyn); Pred Mild; Prednisone Intensol; Prednisolone Acetate Ophthalmic Suspension (Pred Forte); Prevacid; PrismaSol Solution (Sterile Hemofiltration Hemodiafiltration Solution); ProAir; Proglycem; ProHance (Gadoteridol Injection Solution); Proparacaine Hydrochloride Ophthalmic Solution (Alcaine); Propine; Pulmicort; Pulmozyme; Quixin (Levofloxacin Ophthalmic Solution 0.5%); QVAR; Rapamune; Rebetol; Relacon-HC; Rotarix (Rotavirus Vaccine, Live, Oral Suspension); Rotavirus Vaccine, Live, Oral Suspension (Rotarix); Rowasa (Mesalamine Rectal Suspension Enema); Sabril (Vigabatrin Oral Solution); Sacrosidase Oral Solution (Sucraid); Sandimmune; Sepra; Serevent Diskus; Solu Cortef (Hydrocortisone Sodium Succinate); Solu Medrol (Methylprednisolone sodium succinate); Spiriva; Sporanox Oral Solution (Itraconazole Oral Solution); Staticin (Erythromycin Topical Solution 1.5%); Stalevo; Starlix; Sterile Hemofiltration Hemodiafiltration Solution (PrismaSol Solution); Stimate; Sucralfate (Carafate Suspension); Sulfacetamide Sodium Ophthalmic Solution 10% (Bleph 10); Synarel Nasal Solution (Nafarelin Acetate Nasal Solution for Endometriosis); Taclonex Scalp (Calcipotriene and Betamethasone Dipropionate Topical Suspension); Tamiflu; Tobi; TobraDex; Tobradex ST (Tobramycin/Dexamethasone Ophthalmic Suspension 0.3%/0.05%); Tobramycin/Dexamethasone Ophthalmic Suspension 0.3%/0.05% (Tobradex ST); Timolol; Timoptic; Travatan Z; Treprostinil Inhalation Solution (Tyvaso); Trusopt (Dorzolamide Hydrochloride Ophthalmic Solution); Tyvaso (Treprostinil Inhalation Solution); Ventolin; Vfend; Vibramycin Oral (Doxycycline Calcium Oral Suspension); Videx (Didanosine Pediatric Powder for Oral Solution); Vigabatrin Oral Solution (Sabril); Viokase; Viracept; Viramune; Vitamin K1 (Fluid Colloidal Solution of Vitamin K1); Voltaren Ophthalmic (Diclofenac Sodium Ophthalmic Solution); Zarontin Oral Solution (Ethosuximide Oral Solution); Ziagen; Zyvox; Zymar (Gatifloxacin Ophthalmic Solution); Zymaxid (Gatifloxacin Ophthalmic Solution)
Drug Classes
5-alpha-reductase inhibitors; 5-aminosalicylates; 5HT3 receptor antagonists; adamantane antivirals; adrenal cortical steroids; adrenal corticosteroid inhibitors; adrenergic bronchodilators; agents for hypertensive emergencies; agents for pulmonary hypertension; aldosterone receptor antagonists; alkylating agents; alpha-adrenoreceptor antagonists; alpha-glucosidase inhibitors; alternative medicines; amebicides; aminoglycosides; aminopenicillins; aminosalicylates; amylin analogs; Analgesic Combinations; Analgesics; androgens and anabolic steroids; angiotensin converting enzyme inhibitors; angiotensin II inhibitors; anorectal preparations; anorexiants; antacids; anthelmintics; anti-angiogenic ophthalmic agents; anti-CTLA-4 monoclonal antibodies; anti-infectives; antiadrenergic agents, centrally acting; antiadrenergic agents, peripherally acting; antiandrogens; antianginal agents; antiarrhythmic agents; antiasthmatic combinations; antibiotics/antineoplastics; anticholinergic antiemetics; anticholinergic antiparkinson agents; anticholinergic bronchodilators; anticholinergic chronotropic agents; anticholinergics/antispasmodics; anticoagulants; anticonvulsants; antidepressants; antidiabetic agents; antidiabetic combinations; antidiarrheals; antidiuretic hormones; antidotes; antiemetic/antivertigo agents; antifungals; antigonadotropic agents; antigout agents; antihistamines; antihyperlipidemic agents; antihyperlipidemic combinations; antihypertensive combinations; antihyperuricemic agents; antimalarial agents; antimalarial combinations; antimalarial quinolines; antimetabolites; antimigraine agents; antineoplastic detoxifying agents; antineoplastic interferons; antineoplastic monoclonal antibodies; antineoplastics; antiparkinson agents; antiplatelet agents; antipseudomonal penicillins; antipsoriatics; antipsychotics; antirheumatics; antiseptic and germicides; antithyroid agents; antitoxins and antivenins; antituberculosis agents; antituberculosis combinations; antitussives; antiviral agents; antiviral combinations; antiviral interferons; anxiolytics, sedatives, and hypnotics; aromatase inhibitors; atypical antipsychotics; azole antifungals; bacterial vaccines; barbiturate anticonvulsants; barbiturates; BCR-ABL tyrosine kinase inhibitors; benzodiazepine anticonvulsants; benzodiazepines; beta-adrenergic blocking agents; beta-lactamase inhibitors; bile acid sequestrants; biologicals; bisphosphonates; bone resorption inhibitors; bronchodilator combinations; bronchodilators; calcitonin; calcium channel blocking agents; carbamate anticonvulsants; carbapenems; carbonic anhydrase inhibitor anticonvulsants; carbonic anhydrase inhibitors; cardiac stressing agents; cardioselective beta blockers; cardiovascular agents; catecholamines; CD20 monoclonal antibodies; CD33 monoclonal antibodies; CD52 monoclonal antibodies; central nervous system agents; cephalosporins; cerumenolytics; chelating agents; chemokine receptor antagonist; chloride channel activators; cholesterol absorption inhibitors; cholinergic agonists; cholinergic muscle stimulants; cholinesterase inhibitors; CNS stimulants; coagulation modifiers; colony stimulating factors; contraceptives; corticotropin; coumarins and indandiones; cox-2 inhibitors; decongestants; dermatological agents; diagnostic radiopharmaceuticals; dibenzazepine anticonvulsants; digestive enzymes; dipeptidyl peptidase 4 inhibitors; diuretics; dopaminergic antiparkinsonism agents; drugs used in alcohol dependence; echinocandins; EGFR inhibitors; estrogen receptor antagonists; estrogens; expectorants; factor Xa inhibitors; fatty acid derivative anticonvulsants; fibric acid derivatives; first generation cephalosporins; fourth generation cephalosporins; functional bowel disorder agents; gallstone solubilizing agents; gamma-aminobutyric acid analogs; gamma-aminobutyric acid reuptake inhibitors; gamma-aminobutyric acid transaminase inhibitors; gastrointestinal agents; general anesthetics; genitourinary tract agents; GI stimulants; glucocorticoids; glucose elevating agents; glycopeptide antibiotics; glycoprotein platelet inhibitors; glycylcyclines; gonadotropin releasing hormones; gonadotropin-releasing hormone antagonists; gonadotropins; group I antiarrhythmics; group II antiarrhythmics; group III antiarrhythmics; group IV antiarrhythmics; group V antiarrhythmics; growth hormone receptor blockers; growth hormones; H. pylori eradication agents; H2 antagonists; hematopoietic stem cell mobilizer; heparin antagonists; heparins; HER2 inhibitors; herbal products; histone deacetylase inhibitors; hormone replacement therapy; hormones; hormones/antineoplastics; hydantoin anticonvulsants; illicit (street) drugs; immune globulins; immunologic agents; immunosuppressive agents; impotence agents; in vivo diagnostic biologicals; incretin mimetics; inhaled anti-infectives; inhaled corticosteroids; inotropic agents; insulin; insulin-like growth factor; integrase strand transfer inhibitor; interferons; intravenous nutritional products; iodinated contrast media; ionic iodinated contrast media; iron products; ketolides; laxatives; leprostatics; leukotriene modifiers; lincomycin derivatives; lipoglycopeptides; local injectable anesthetics; loop diuretics; lung surfactants; lymphatic staining agents; lysosomal enzymes; macrolide derivatives; macrolides; magnetic resonance imaging contrast media; mast cell stabilizers; medical gas; meglitinides; metabolic agents; methylxanthines; mineralocorticoids; minerals and electrolytes; miscellaneous agents; miscellaneous analgesics; miscellaneous antibiotics; miscellaneous anticonvulsants; miscellaneous antidepressants; miscellaneous antidiabetic agents; miscellaneous antiemetics; miscellaneous antifungals; miscellaneous antihyperlipidemic agents; miscellaneous antimalarials; miscellaneous antineoplastics; miscellaneous antiparkinson agents; miscellaneous antipsychotic agents; miscellaneous antituberculosis agents; miscellaneous antivirals; miscellaneous anxiolytics, sedatives and hypnotics; miscellaneous biologicals; miscellaneous bone resorption inhibitors; miscellaneous cardiovascular agents; miscellaneous central nervous system agents; miscellaneous coagulation modifiers; miscellaneous diuretics; miscellaneous genitourinary tract agents; miscellaneous GI agents; miscellaneous hormones; miscellaneous metabolic agents; miscellaneous ophthalmic agents; miscellaneous otic agents; miscellaneous respiratory agents; miscellaneous sex hormones; miscellaneous topical agents; miscellaneous uncategorized agents; miscellaneous vaginal agents; mitotic inhibitors; monoamine oxidase inhibitors; monoclonal antibodies; mouth and throat products; mTOR inhibitors; mTOR kinase inhibitors; mucolytics; multikinase inhibitors; muscle relaxants; mydriatics; narcotic analgesic combinations; narcotic analgesics; nasal anti-infectives; nasal antihistamines and decongestants; nasal lubricants and irrigations; nasal preparations; nasal steroids; natural penicillins; neuraminidase inhibitors; neuromuscular blocking agents; next generation cephalosporins; nicotinic acid derivatives; nitrates; NNRTIs; non-cardioselective beta blockers; non-iodinated contrast media; non-ionic iodinated contrast media; non-sulfonylureas; nonsteroidal anti-inflammatory agents; norepinephrine reuptake inhibitors; norepinephrine-dopamine reuptake inhibitors; nucleoside reverse transcriptase inhibitors (NRTIs); nutraceutical products; nutritional products; ophthalmic anesthetics; ophthalmic anti-infectives; ophthalmic anti-inflammatory agents; ophthalmic antihistamines and decongestants; ophthalmic diagnostic agents; ophthalmic glaucoma agents; ophthalmic lubricants and irrigations; ophthalmic preparations; ophthalmic steroids; ophthalmic steroids with anti-infectives; ophthalmic surgical agents; oral nutritional supplements; otic anesthetics; otic anti-infectives; otic preparations; otic steroids; otic steroids with anti-infectives; oxazolidinedione anticonvulsants; parathyroid hormone and analogs; penicillinase resistant penicillins; penicillins; peripheral opioid receptor antagonists; peripheral vasodilators; peripherally acting antiobesity agents; phenothiazine antiemetics; phenothiazine antipsychotics; phenylpiperazine antidepressants; plasma expanders; platelet aggregation inhibitors; platelet-stimulating agents; polyenes; potassium-sparing diuretics; probiotics; progesterone receptor modulators; progestins; prolactin inhibitors; prostaglandin D2 antagonists; protease inhibitors; proton pump inhibitors; psoralens; psychotherapeutic agents; psychotherapeutic combinations; purine nucleosides; pyrrolidine anticonvulsants; quinolones; radiocontrast agents; radiologic adjuncts; radiologic agents; radiologic conjugating agents; radiopharmaceuticals; RANK ligand inhibitors; recombinant human erythropoietins; renin inhibitors; respiratory agents; respiratory inhalant products; rifamycin derivatives; salicylates; sclerosing agents; second generation cephalosporins; selective estrogen receptor modulators; selective serotonin reuptake inhibitors; serotonin-norepinephrine reuptake inhibitors; serotoninergic neuroenteric modulators; sex hormone combinations; sex hormones; skeletal muscle relaxant combinations; skeletal muscle relaxants; smoking cessation agents; somatostatin and somatostatin analogs; spermicides; statins; sterile irrigating solutions; Streptomyces derivatives; succinimide anticonvulsants; sulfonamides; sulfonylureas; synthetic ovulation stimulants; tetracyclic antidepressants; tetracyclines; therapeutic radiopharmaceuticals; thiazide diuretics; thiazolidinediones; thioxanthenes; third generation cephalosporins; thrombin inhibitors; thrombolytics; thyroid drugs; tocolytic agents; topical acne agents; topical agents; topical anesthetics; topical anti-infectives; topical antibiotics; topical antifungals; topical antihistamines; topical antipsoriatics; topical antivirals; topical astringents; topical debriding agents; topical depigmenting agents; topical emollients; topical keratolytics; topical steroids; topical steroids with anti-infectives; toxoids; triazine anticonvulsants; tricyclic antidepressants; trifunctional monoclonal antibodies; tumor necrosis factor (TNF) inhibitors; tyrosine kinase inhibitors; ultrasound contrast media; upper respiratory combinations; urea anticonvulsants; urinary anti-infectives; urinary antispasmodics; urinary pH modifiers; uterotonic agents; vaccine; vaccine combinations; vaginal anti-infectives; vaginal preparations; vasodilators; vasopressin antagonists; vasopressors; VEGF/VEGFR inhibitors; viral vaccines; viscosupplementation agents; vitamin and mineral combinations; vitamins
Diagnostic Tests
17-Hydroxyprogesterone; ACE (Angiotensin I converting enzyme); Acetaminophen; Acid phosphatase; ACTH; Activated clotting time; Activated protein C resistance; Adrenocorticotropic hormone (ACTH); Alanine aminotransferase (ALT); Albumin; Aldolase; Aldosterone; Alkaline phosphatase; Alkaline phosphatase (ALP); Alpha1-antitrypsin; Alpha-fetoprotein; Alpha-fetoprotien; Ammonia levels; Amylase; ANA (antinuclear antbodies); ANA (antinuclear antibodies); Angiotensin-converting enzyme (ACE); Anion gap; Anticardiolipin antibody; Anticardiolipin antivbodies (ACA); Anti-centromere antibody; Antidiuretic hormone; Anti-DNA; Anti-Dnase-B; Anti-Gliadin antibody; Anti-glomerular basement membrane antibody; Anti-HBc (Hepatitis B core antibodies; Anti-HBs (Hepatitis B surface antibody; Antiphospholipid antibody; Anti-RNA polymerase; Anti-Smith (Sm) antibodies; Anti-Smooth Muscle antibody; Antistreptolysin O (ASO); Antithrombin III; Anti-Xa activity; Anti-Xa assay; Apolipoproteins; Arsenic; Aspartate aminotransferase (AST); B12; Basophil; Beta-2-Microglobulin; Beta-hydroxybutyrate; B-HCG; Bilirubin; Bilirubin, direct; Bilirubin, indirect; Bilirubin, total; Bleeding time; Blood gases (arterial); Blood urea nitrogen (BUN); BUN; BUN (blood urea nitrogen); CA 125; CA 15-3; CA 19-9; Calcitonin; Calcium; Calcium (ionized); Carbon monoxide (CO); Carcinoembryonic antigen (CEA); CBC; CEA; CEA (carcinoembryonic antigen); Ceruloplasmin; CH50Chloride; Cholesterol; Cholesterol, HDL; Clot lysis time; Clot retraction time; CMP; CO2; Cold agglutinins; Complement C3; Copper; Corticotrophin releasing hormone (CRH) stimulation test; Cortisol; Cortrosyn stimulation test; C-peptide; CPK (Total); CPK-MB; C-reactive protein; Creatinine; Creatinine kinase (CK); Cryoglobulins; DAT (Direct antiglobulin test); D-Dimer; Dexamethasone suppression test; DHEA-S; Dilute Russell viper venom; Elliptocytes; Eosinophil; Erythrocyte sedimentation rate (ESR); Estradiol; Estriol; Ethanol; Ethylene glycol; Euglobulin lysis; Factor V Leiden; Factor VIII inhibitor; Factor VIII level; Ferritin; Fibrin split products; Fibrinogen; Folate; Folate (serum; Fractional excretion of sodium (FENA); FSH (follicle stimulating factor); FTA-ABS; Gamma glutamyl transferase (GGT); Gastrin; GGTP (Gamma glutamyl transferase); Glucose; Growth hormone; Haptoglobin; HBeAg (Hepatitis Be antigen); HBs-Ag (Hepatitis B surface antigen); Helicobacter pylori; Hematocrit; Hematocrit (HCT); Hemoglobin; Hemoglobin AlC; Hemoglobin electrophoresis; Hepatitis A antibodies; Hepatitis C antibodies; IAT (Indirect antiglobulin test); Immunofixation (IFE); Iron; Lactate dehydrogenase (LDH); Lactic acid (lactate); LDH; LH (Leutinizing hormone; Lipase; Lupus anticoagulant; Lymphocyte; Magnesium; MCH (mean corpuscular hemoglobin; MCHC (mean corpuscular hemoglobin concentration); MCV (mean corpuscular volume); Methylmalonate; Monocyte; MPV (mean platelet volume); Myoglobin; Neutrophil; Parathyroid hormone (PTH); Phosphorus; Platelets (pit); Potassium; Prealbumin; Prolactin; Prostate specific antigen (PSA); Protein C; Protein S; PSA (prostate specific antigen); PT (Prothrombin time); PTT (Partial thromboplastin time); RDW (red cell distribution width); Renin; Rennin; Reticulocyte count; reticulocytes; Rheumatoid factor (RF); Sed Rate; Serum glutamic-pyruvic transaminase (SGPT; Serum protein electrophoresis (SPEP); Sodium; T3-resin uptake (T3RU); T4, Free; Thrombin time; Thyroid stimulating hormone (TSH); Thyroxine (T4); Total iron binding capacity (TIBC); Total protein; Transferrin; Transferrin saturation; Triglyceride (TG); Troponin; Uric acid; Vitamin B12; White blood cells (WBC); Widal test.
The following reference characters are used in the drawing figures:
In the context of the present invention, the following definitions and abbreviations are used:
RF is radio frequency.
The term “at least” in the context of the present invention means “equal or more” than the integer following the term. The word “comprising” does not exclude other elements or steps, and the indefinite article “a” or “an” does not exclude a plurality unless indicated otherwise. Whenever a parameter range is indicated, it is intended to disclose the parameter values given as limits of the range and all values of the parameter falling within said range.
“First” and “second” or similar references to, for example, deposits of lubricant, processing stations or processing devices refer to the minimum number of deposits, processing stations or devices that are present, but do not necessarily represent the order or total number of deposits, processing stations and devices or require additional deposits, processing stations and devices beyond the stated number. These terms do not limit the number of processing stations or the particular processing carried out at the respective stations. For example, a “first” deposit in the context of this specification can be either the only deposit or any one of plural deposits, without limitation. In other words, recitation of a “first” deposit allows but does not require an embodiment that also has a second or further deposit.
For purposes of the present invention, an “organosilicon precursor” is a compound having at least one of the linkages:
which is a tetravalent silicon atom connected to an oxygen or nitrogen atom and an organic carbon atom (an organic carbon atom being a carbon atom bonded to at least one hydrogen atom). A volatile organosilicon precursor, defined as such a precursor that can be supplied as a vapor in a PECVD apparatus, is an optional organosilicon precursor. Optionally, the organosilicon precursor is selected from the group consisting of a linear siloxane, a monocyclic siloxane, a polycyclic siloxane, a polysilsesquioxane, an alkyl trimethoxysilane, a linear silazane, a monocyclic silazane, a polycyclic silazane, a polysilsesquiazane, and a combination of any two or more of these precursors.
The feed amounts of PECVD precursors, gaseous reactant or process gases, and carrier gas are sometimes expressed in “standard volumes” in the specification and claims. The standard volume of a charge or other fixed amount of gas is the volume the fixed amount of the gas would occupy at a standard temperature and pressure (without regard to the actual temperature and pressure of delivery). Standard volumes can be measured using different units of volume, and still be within the scope of the present disclosure and claims. For example, the same fixed amount of gas could be expressed as the number of standard cubic centimeters, the number of standard cubic meters, or the number of standard cubic feet. Standard volumes can also be defined using different standard temperatures and pressures, and still be within the scope of the present disclosure and claims. For example, the standard temperature might be 0° C. and the standard pressure might be 760 Torr (as is conventional), or the standard temperature might be 20° C. and the standard pressure might be 1 Torr. But whatever standard is used in a given case, when comparing relative amounts of two or more different gases without specifying particular parameters, the same units of volume, standard temperature, and standard pressure are to be used relative to each gas, unless otherwise indicated.
The corresponding feed rates of PECVD precursors, gaseous reactant or process gases, and carrier gas are expressed in standard volumes per unit of time in the specification. For example, in the working examples the flow rates are expressed as standard cubic centimeters per minute, abbreviated as sccm. As with the other parameters, other units of time can be used, such as seconds or hours, but consistent parameters are to be used when comparing the flow rates of two or more gases, unless otherwise indicated.
A “vessel” in the context of the present invention can be any type of vessel with at least one opening and a wall defining an inner or interior surface. The substrate can be the wall of a vessel having a lumen. Though the invention is not necessarily limited to pharmaceutical packages or other vessels of a particular volume, pharmaceutical packages or other vessels are contemplated in which the lumen has a void volume of from 0.5 to 50 mL, optionally from 1 to 10 mL, optionally from 0.5 to 5 mL, optionally from 1 to 3 mL. The substrate surface can be part or all of the inner or interior surface of a vessel having at least one opening and an inner or interior surface. Some examples of a pharmaceutical package include, but are not limited to, a vial, a plastic-coated vial, a syringe, a plastic coated syringe, a blister pack, an ampoule, a plastic coated ampoule, a cartridge, a bottle, a plastic coated bottle, a pouch, a pump, a sprayer, a stopper, a needle, a plunger, a cap, a stent, a catheter or an implant.
The term “at least” in the context of the present invention means “equal or more” than the integer following the term. Thus, a vessel in the context of the present invention has one or more openings. One or two openings, like the openings of a sample tube (one opening) or a syringe barrel (two openings) are preferred. If the vessel has two openings, they can be of same or different size. If there is more than one opening, one opening can be used for the gas inlet for a PECVD coating method according to the present invention, while the other openings are either capped or open. A vessel according to the present invention can be a sample tube, for example for collecting or storing biological fluids like blood or urine, a syringe (or a part thereof, for example a syringe barrel) for storing or delivering a biologically active compound or composition, for example a medicament or pharmaceutical composition, a vial for storing biological materials or biologically active compounds or compositions, a pipe, for example a catheter for transporting biological materials or biologically active compounds or compositions, or a cuvette for holding fluids, for example for holding biological materials or biologically active compounds or compositions.
A vessel can be of any shape, a vessel having a substantially cylindrical wall adjacent to at least one of its open ends being preferred. Generally, the interior wall of the vessel is cylindrically shaped, like, for example in a sample tube or a syringe barrel. Sample tubes and syringes or their parts (for example syringe barrels) are contemplated.
A “hydrophobic layer” in the context of the present invention means that the coating or layer lowers the wetting tension of a surface coated with the coating or layer, compared to the corresponding uncoated surface. Hydrophobicity is thus a function of both the uncoated substrate and the coating or layer. The same applies with appropriate alterations for other contexts wherein the term “hydrophobic” is used. The term “hydrophilic” means the opposite, i.e. that the wetting tension is increased compared to reference sample. The present hydrophobic layers are primarily defined by their hydrophobicity and the process conditions providing hydrophobicity
These values of w, x, y, and z are applicable to the empirical composition SiwOxCyHz throughout this specification. The values of w, x, y, and z used throughout this specification should be understood as ratios or an empirical formula (for example for a coating or layer), rather than as a limit on the number or type of atoms in a molecule. For example, octamethylcyclotetrasiloxane, which has the molecular composition Si4O4C8H24, can be described by the following empirical formula, arrived at by dividing each of w, x, y, and z in the molecular formula by 4, the largest common factor: Si1O1C2H6. The values of w, x, y, and z are also not limited to integers. For example, (acyclic) octamethyltrisiloxane, molecular composition Si3O2C8H24, is reducible to Si1O0.67C2.67H8. Also, although SiOxCyHz is described as equivalent to SiOxCy, it is not necessary to show the presence of hydrogen in any proportion to show the presence of SiOxCy.
“Wetting tension” is a specific measure for the hydrophobicity or hydrophilicity of a surface. An optional wetting tension measurement method in the context of the present invention is ASTM D 2578 or a modification of the method described in ASTM D 2578. This method uses standard wetting tension solutions (called dyne solutions) to determine the solution that comes nearest to wetting a plastic film surface for exactly two seconds. This is the film's wetting tension. The procedure utilized is varied herein from ASTM D 2578 in that the substrates are not flat plastic films, but are tubes made according to the Protocol for Forming PET Tube and (except for controls) coated according to the Protocol for coating Tube Interior with Hydrophobic Coating or Layer (see Example 9 of EP2251671 A2).
The atomic ratio can be determined by XPS. Taking into account the H atoms, which are not measured by XPS, the coating or layer may thus in one aspect have the formula SiwOxCyHz (or its equivalent SiOxCy), for example where w is 1, x is from about 0.5 to about 2.4, y is from about 0.6 to about 3, and z is from about 2 to about 9. Typically, such coating or layer would hence contain 36% to 41% carbon normalized to 100% carbon plus oxygen plus silicon.
The term “syringe” is broadly defined to include cartridges, injection “pens,” and other types of barrels or reservoirs adapted to be assembled with one or more other components to provide a functional syringe. “Syringe” is also broadly defined to include related articles such as auto-injectors, which provide a mechanism for dispensing the contents.
A coating or layer or treatment is defined as “hydrophobic” if it lowers the wetting tension of a surface, compared to the corresponding uncoated or untreated surface. Hydrophobicity is thus a function of both the untreated substrate and the treatment.
The word “comprising” does not exclude other elements or steps.
The indefinite article “a” or “an” does not exclude a plurality.
The present invention will now be described more fully, with reference to the accompanying drawings, in which several embodiments are shown. This invention can, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth here. Rather, these embodiments are examples of the invention, which has the full scope indicated by the language of the claims. Like numbers refer to like or corresponding elements throughout. The following disclosure relates to all embodiments unless specifically limited to a certain embodiment.
Vessels and Coating Sets
An aspect of the invention, illustrated most broadly by
An embodiment of the vessel coating or layer set 285 is at least one tie coating or layer 289, at least one barrier coating or layer 288, and at least one pH protective coating or layer 286, illustrated in
Several particular coordinating coating sets 285, 285a, and 285b for a vessel 210 and closure of
Sets 1-4 and 7 in the Table of Coating Sets are among the useful alternatives for a syringe. The syringe barrel wall coatings (left column) of Set 1 are one example of the previously described trilayer coating, and Set 7 is a modification of the trilayer coating in which a PECVD lubricant coating or layer is the top layer of the set.
The Set 1 trilayer coating set 285, illustrated in
The Set 1 trilayer coating set 285 includes as a first layer an adhesion or tie coating or layer 289 that improves adhesion of the barrier coating or layer to the COP substrate. The adhesion or tie coating or layer 289 is also believed to relieve stress on the barrier coating or layer 288, making the barrier layer less subject to damage from thermal expansion or contraction or mechanical shock. The adhesion or tie coating or layer 289 is also believed to decouple defects between the barrier coating or layer 288 and the COP substrate. This is believed to occur because any pinholes or other defects that may be formed when the adhesion or tie coating or layer 289 is applied tend not to be continued when the barrier coating or layer 288 is applied, so the pinholes or other defects in one coating do not line up with defects in the other. The adhesion or tie coating or layer 289 has some efficacy as a barrier layer, so even a defect providing a leakage path extending through the barrier coating or layer 289 is blocked by the adhesion or tie coating or layer 289.
The Set 1 trilayer coating set 285 includes as a second layer a barrier coating or layer 288 that provides a barrier to oxygen that has permeated the COP barrel wall. The barrier coating or layer 288 also is a barrier to extraction of the composition of the barrel wall 214 by the contents of the lumen 214.
The Set 1 trilayer coating set 285 includes as a third layer a pH protective coating or layer 286 that provides protection of the underlying barrier coating or layer 288 against contents of the syringe having a pH from 4 to 8, including where a surfactant is present. For a prefilled syringe that is in contact with the contents of the syringe from the time it is manufactured to the time it is used, the pH protective coating or layer 286 prevents or inhibits attack of the barrier coating or layer 288 sufficiently to maintain an effective oxygen barrier over the intended shelf life of the prefilled syringe.
Sets 5 and 6 are useful for a vial, for instance. The lubricant deposit as the coating set 285b represents a siliconized septum in which the entire surface is coated with a lubricant to aid insertion into a vial neck, so the facing surface of the closure is coated although the coating is not needed there.
The vessel wall coating set 285 represented by Set 6 is another trilayer coating set, again illustrated in
Tie Coating or Layer
The tie coating or layer 289 has at least two functions. One function of the tie coating or layer 289 is to improve adhesion of a barrier coating or layer 288 to a substrate, in particular a thermoplastic substrate, although a tie layer can be used to improve adhesion to a glass substrate or to another coating or layer. For example, a tie coating or layer, also referred to as an adhesion layer or coating can be applied to the substrate and the barrier layer can be applied to the adhesion layer to improve adhesion of the barrier layer or coating to the substrate.
Another function of the tie coating or layer 289 has been discovered: a tie coating or layer 289 applied under a barrier coating or layer 288 can improve the function of a pH protective coating or layer 286 applied over the barrier coating or layer 288.
The tie coating or layer 289 can be composed of, comprise, or consist essentially of SiOxCy, in which x is between 0.5 and 2.4 and y is between 0.6 and 3. Alternatively, the atomic ratio can be expressed as the formula SiwOxCy, The atomic ratios of Si, O, and C in the tie coating or layer 289 are, as several options:
Si 100: O 50-150: C 90-200 (i.e. w=1, x=0.5 to 1.5, y=0.9 to 2);
Si 100: O 70-130: C 90-200 (i.e. w=1, x=0.7 to 1.3, y=0.9 to 2)
Si 100: O 80-120: C 90-150 (i.e. w=1, x=0.8 to 1.2, y=0.9 to 1.5)
Si 100: O 90-120: C 90-140 (i.e. w=1, x=0.9 to 1.2, y=0.9 to 1.4), or
Si 100: O 92-107: C 116-133 (i.e. w=1, x=0.92 to 1.07, y=1.16 to 1.33)
The atomic ratio can be determined by XPS. Taking into account the H atoms, which are not measured by XPS, the tie coating or layer 289 may thus in one aspect have the formula SiwOxCyHz (or its equivalent SiOxCy), for example where w is 1, x is from about 0.5 to about 2.4, y is from about 0.6 to about 3, and z is from about 2 to about 9. Typically, tie coating or layer 289 would hence contain 36% to 41% carbon normalized to 100% carbon plus oxygen plus silicon.
Optionally, the tie coating or layer can be similar or identical in composition with the pH protective coating or layer 286 described elsewhere in this specification, although this is not a requirement.
The tie coating or layer 289 is contemplated in any embodiment generally to be from 5 nm to 100 nm thick, preferably from 5 to 20 nm thick, particularly if applied by chemical vapor deposition. These thicknesses are not critical. Commonly but not necessarily, the tie coating or layer 289 will be relatively thin, since its function is to change the surface properties of the substrate.
Barrier Layer
A barrier coating or layer 288 optionally can be deposited by plasma enhanced chemical vapor deposition (PECVD) or other chemical vapor deposition processes on the vessel of a pharmaceutical package, in particular a thermoplastic package, to prevent oxygen, carbon dioxide, or other gases from entering the vessel and/or to prevent leaching of the pharmaceutical material into or through the package wall.
The barrier coating or layer for any embodiment defined in this specification (unless otherwise specified in a particular instance) is a coating or layer, optionally applied by PECVD as indicated in U.S. Pat. No. 7,985,188. The barrier layer optionally is characterized as an “SiOx” coating, and contains silicon, oxygen, and optionally other elements, in which x, the ratio of oxygen to silicon atoms, is from about 1.5 to about 2.9, or 1.5 to about 2.6, or about 2. These alternative definitions of x apply to any use of the term SiOx in this specification. The barrier coating or layer is applied, for example to the interior of a pharmaceutical package or other vessel, for example a sample collection tube, a syringe barrel, a vial, or another type of vessel.
The barrier coating 288 comprises or consists essentially of SiOx, wherein x is from 1.5 to 2.9, from 2 to 1000 nm thick, the barrier coating 288 of SiOx having an interior surface 220 facing the lumen 212 and an outer surface 222 facing the wall 214 article surface 254, the barrier coating 288 being effective to reduce the ingress of atmospheric gas into the lumen 212 compared to an uncoated vessel 250. One suitable barrier composition is one where x is 2.3, for example. For example, the barrier coating or layer such as 288 of any embodiment can be applied at a thickness of at least 2 nm, or at least 4 nm, or at least 7 nm, or at least 10 nm, or at least 20 nm, or at least 30 nm, or at least 40 nm, or at least 50 nm, or at least 100 nm, or at least 150 nm, or at least 200 nm, or at least 300 nm, or at least 400 nm, or at least 500 nm, or at least 600 nm, or at least 700 nm, or at least 800 nm, or at least 900 nm. The barrier coating or layer can be up to 1000 nm, or at most 900 nm, or at most 800 nm, or at most 700 nm, or at most 600 nm, or at most 500 nm, or at most 400 nm, or at most 300 nm, or at most 200 nm, or at most 100 nm, or at most 90 nm, or at most 80 nm, or at most 70 nm, or at most 60 nm, or at most 50 nm, or at most 40 nm, or at most 30 nm, or at most 20 nm, or at most 10 nm, or at most 5 nm thick. Ranges of 20-200 nm, optionally 20-30 nm, are contemplated. Specific thickness ranges composed of any one of the minimum thicknesses expressed above, plus any equal or greater one of the maximum thicknesses expressed above, are expressly contemplated.
The thickness of the SiOx or other barrier coating or layer can be measured, for example, by transmission electron microscopy (TEM), and its composition can be measured by X-ray photoelectron spectroscopy (XPS). The primer coating or layer described herein can be applied to a variety of pharmaceutical packages or other vessels made from plastic or glass, for example to plastic tubes, vials, and syringes.
A barrier coating or layer 286 of SiOx, in which x is between 1.5 and 2.9, is applied by plasma enhanced chemical vapor deposition (PECVD) directly or indirectly to the thermoplastic wall 214 (for example a tie coating or layer 289 can be interposed between them) so that in the filled pharmaceutical package or other vessel 210 the barrier coating or layer 286 is located between the inner or interior surface 220 of the thermoplastic wall 214 and the fluid 218.
The barrier coating or layer 286 of SiOx is supported by the thermoplastic wall 214. The barrier coating or layer 286 as described elsewhere in this specification, or in U.S. Pat. No. 7,985,188, can be used in any embodiment.
Certain barrier coatings or layers 286 such as SiOx as defined here have been found to have the characteristic of being subject to being measurably diminished in barrier improvement factor in less than six months as a result of attack by certain relatively high pH contents of the coated vessel as described elsewhere in this specification, particularly where the barrier coating or layer directly contacts the contents. This issue can be addressed using a pH protective coating or layer as discussed in this specification.
The barrier coating or layer 286 of SiOx also can function as a primer coating or layer 283, as discussed elsewhere in this specification.
pH Protective Coating or Layer
The inventors have found that barrier layers or coatings of SiOx are eroded or dissolved by some fluids, for example aqueous compositions having a pH above about 5. Since coatings applied by chemical vapor deposition can be very thin—tens to hundreds of nanometers thick—even a relatively slow rate of erosion can remove or reduce the effectiveness of the barrier layer in less time than the desired shelf life of a product package. This is particularly a problem for fluid pharmaceutical compositions, since many of them have a pH of roughly 7, or more broadly in the range of 5 to 9, similar to the pH of blood and other human or animal fluids. The higher the pH of the pharmaceutical preparation, the more quickly it erodes or dissolves the SiOx coating. Optionally, this problem can be addressed by protecting the barrier coating or layer 288, or other pH sensitive material, with a pH protective coating or layer 286.
Optionally, the pH protective coating or layer 286 can be composed of, comprise, or consist essentially of SiwOxCyHx (or its equivalent SiOxCy) or SiwNxCyHz or its equivalent Si(NH)xCy), each as defined previously. The atomic ratio of Si:O:C or Si:N:C can be determined by XPS (X-ray photoelectron spectroscopy). Taking into account the H atoms, the pH protective coating or layer may thus in one aspect have the formula SiwOxCyHz, or its equivalent SiOxCy, for example where w is 1, x is from about 0.5 to about 2.4, y is from about 1.6 to about 3, and z is from about 2 to about 9.
Typically, expressed as the formula SiwOxCy, the atomic ratios of Si, O, and C are, as several options:
Alternatively, the pH protective coating or layer can have atomic concentrations normalized to 100% carbon, oxygen, and silicon, as determined by X-ray photoelectron spectroscopy (XPS) of less than 50% carbon and more than 25% silicon. Alternatively, the atomic concentrations are from 25 to 45% carbon, 25 to 65% silicon, and 10 to 35% oxygen. Alternatively, the atomic concentrations are from 30 to 40% carbon, 32 to 52% silicon, and 20 to 27% oxygen. Alternatively, the atomic concentrations are from 33 to 37% carbon, 37 to 47% silicon, and 22 to 26% oxygen.
The thickness of the pH protective coating or layer can be, for example:
Optionally, the atomic concentration of carbon in the protective layer, normalized to 100% of carbon, oxygen, and silicon, as determined by X-ray photoelectron spectroscopy (XPS), can be greater than the atomic concentration of carbon in the atomic formula for the organosilicon precursor. For example, embodiments are contemplated in which the atomic concentration of carbon increases by from 1 to 80 atomic percent, alternatively from 10 to 70 atomic percent, alternatively from 20 to 60 atomic percent, alternatively from 30 to 50 atomic percent, alternatively from 35 to 45 atomic percent, alternatively from 37 to 41 atomic percent.
Optionally, the atomic ratio of carbon to oxygen in the pH protective coating or layer can be increased in comparison to the organosilicon precursor, and/or the atomic ratio of oxygen to silicon can be decreased in comparison to the organosilicon precursor.
Optionally, the pH protective coating or layer can have an atomic concentration of silicon, normalized to 100% of carbon, oxygen, and silicon, as determined by X-ray photoelectron spectroscopy (XPS), less than the atomic concentration of silicon in the atomic formula for the feed gas. For example, embodiments are contemplated in which the atomic concentration of silicon decreases by from 1 to 80 atomic percent, alternatively by from 10 to 70 atomic percent, alternatively by from 20 to 60 atomic percent, alternatively by from 30 to 55 atomic percent, alternatively by from 40 to 50 atomic percent, alternatively by from 42 to 46 atomic percent.
As another option, a pH protective coating or layer is contemplated in any embodiment that can be characterized by a sum formula wherein the atomic ratio C:O can be increased and/or the atomic ratio Si:O can be decreased in comparison to the sum formula of the organosilicon precursor.
The pH protective coating or layer 286 commonly is located between the barrier coating or layer 288 and the fluid 218 in the finished article. The pH protective coating or layer 286 is supported by the thermoplastic wall 214.
The pH protective coating or layer 286 optionally is effective to keep the barrier coating or layer 288 at least substantially undissolved as a result of attack by the fluid 218 for a period of at least six months.
The pH protective coating or layer can have a density between 1.25 and 1.65 g/cm3, alternatively between 1.35 and 1.55 g/cm3, alternatively between 1.4 and 1.5 g/cm3, alternatively between 1.4 and 1.5 g/cm3, alternatively between 1.44 and 1.48 g/cm3, as determined by X-ray reflectivity (XRR). Optionally, the organosilicon compound can be octamethylcyclotetrasiloxane and the pH protective coating or layer can have a density which can be higher than the density of a pH protective coating or layer made from HMDSO as the organosilicon compound under the same PECVD reaction conditions.
The pH protective coating or layer optionally can prevent or reduce the precipitation of a compound or component of a composition in contact with the pH protective coating or layer, in particular can prevent or reduce insulin precipitation or blood clotting, in comparison to the uncoated surface and/or to a barrier coated surface using HMDSO as precursor.
The pH protective coating or layer optionally can have an RMS surface roughness value (measured by AFM) of from about 5 to about 9, optionally from about 6 to about 8, optionally from about 6.4 to about 7.8. The Ra surface roughness value of the pH protective coating or layer, measured by AFM, can be from about 4 to about 6, optionally from about 4.6 to about 5.8. The Rmax surface roughness value of the pH protective coating or layer, measured by AFM, can be from about 70 to about 160, optionally from about 84 to about 142, optionally from about 90 to about 130.
The interior surface of the pH protective optionally can have a contact angle (with distilled water) of from 90° to 110°, optionally from 80° to 120°, optionally from 70° to 130°, as measured by Goniometer Angle measurement of a water droplet on the pH protective surface, per ASTM D7334-08 “Standard Practice for Surface Wettability of Coatings, Substrates and Pigments by Advancing Contact Angle Measurement.”
The passivation layer or pH protective coating or layer 286 optionally shows an O-Parameter measured with attenuated total reflection (ATR) of less than 0.4, measured as:
The O-Parameter is defined in U.S. Pat. No. 8,067,070, which claims an O-parameter value of most broadly from 0.4 to 0.9. It can be measured from physical analysis of an FTIR amplitude versus wave number plot to find the numerator and denominator of the above expression, as shown in
U.S. Pat. No. 8,067,070 asserts that the claimed O-parameter range provides a superior pH protective coating or layer, relying on experiments only with HMDSO and HMDSN, which are both non-cyclic siloxanes. Surprisingly, it has been found by the present inventors that if the PECVD precursor is a cyclic siloxane, for example OMCTS, O-parameters outside the ranges claimed in U.S. Pat. No. 8,067,070, using OMCTS, provide even better results than are obtained in U.S. Pat. No. 8,067,070 with HMDSO.
Alternatively in the embodiment of
Even another aspect of the invention is a composite material as just described, exemplified in
The N-Parameter is also described in U.S. Pat. No. 8,067,070, and is measured analogously to the O-Parameter except that intensities at two specific wave numbers are used—neither of these wave numbers is a range. U.S. Pat. No. 8,067,070 claims a passivation layer with an N-Parameter of 0.7 to 1.6. Again, the present inventors have made better coatings employing a pH protective coating or layer 286 having an N-Parameter lower than 0.7, as described above. Alternatively, the N-parameter has a value of at least 0.3, or from 0.4 to 0.6, or at least 0.53.
The rate of erosion, dissolution, or leaching (different names for related concepts) of the pH protective coating or layer 286, if directly contacted by the fluid 218, is less than the rate of erosion of the barrier coating or layer 288, if directly contacted by the fluid 218.
The thickness of the pH protective coating or layer is contemplated in any embodiment to be from 50-500 nm, with a preferred range of 100-200 nm.
The pH protective coating or layer 286 is effective to isolate the fluid 218 from the barrier coating or layer 288, at least for sufficient time to allow the barrier coating to act as a barrier during the shelf life of the pharmaceutical package or other vessel 210.
The inventors have further found that certain pH protective coatings or layers of SiOxCy or Si(NH)xCy formed from polysiloxane precursors, which pH protective coatings or layers have a substantial organic component, do not erode quickly when exposed to fluids, and in fact erode or dissolve more slowly when the fluids have higher pHs within the range of 5 to 9. For example, at pH 8, the dissolution rate of a pH protective coating or layer made from the precursor octamethylcyclotetrasiloxane, or OMCTS, is quite slow. These pH protective coatings or layers of SiOxCy or Si(NH)xCy can therefore be used to cover a barrier layer of SiOx, retaining the benefits of the barrier layer by protecting it from the fluid in the pharmaceutical package. The protective layer is applied over at least a portion of the SiOx layer to protect the SiOx layer from contents stored in a vessel, where the contents otherwise would be in contact with the SiOx layer.
Although the present invention does not depend upon the accuracy of the following theory, it is further believed that effective pH protective coatings or layers for avoiding erosion can be made from siloxanes and silazanes as described in this disclosure. SiOxCy or Si(NH)xCy coatings deposited from cyclic siloxane or linear silazane precursors, for example octamethylcyclotetrasiloxane (OMCTS), are believed to include intact cyclic siloxane rings and longer series of repeating units of the precursor structure. These coatings are believed to be nanoporous but structured and hydrophobic, and these properties are believed to contribute to their success as pH protective coatings or layers, and also protective coatings or layers. This is shown, for example, in U.S. Pat. No. 7,901,783.
SiOxCy or Si(NH)xCy coatings also can be deposited from linear siloxane or linear silazane precursors, for example hexamethyldisiloxane (HMDSO) or tetramethyldisiloxane (TMDSO).
Optionally an FTIR absorbance spectrum of the pH protective coating or layer 286 of any embodiment has a ratio greater than 0.75 between the maximum amplitude of the Si—O—Si symmetrical stretch peak normally located between about 1000 and 1040 cm-1, and the maximum amplitude of the Si—O—Si assymetric stretch peak normally located between about 1060 and about 1100 cm-1. Alternatively in any embodiment, this ratio can be at least 0.8, or at least 0.9, or at least 1.0, or at least 1.1, or at least 1.2. Alternatively in any embodiment, this ratio can be at most 1.7, or at most 1.6, or at most 1.5, or at most 1.4, or at most 1.3. Any minimum ratio stated here can be combined with any maximum ratio stated here, as an alternative embodiment of the invention of
Optionally, in any embodiment the pH protective coating or layer 286, in the absence of the medicament, has a non-oily appearance. This appearance has been observed in some instances to distinguish an effective pH protective coating or layer from a lubricity layer, which in some instances has been observed to have an oily (i.e. shiny) appearance.
Optionally, for the pH protective coating or layer 286 in any embodiment, the silicon dissolution rate by a 50 mM potassium phosphate buffer diluted in water for injection, adjusted to pH 8 with concentrated nitric acid, and containing 0.2 wt. % polysorbate-80 surfactant, (measured in the absence of the medicament, to avoid changing the dissolution reagent), at 40° C., is less than 170 ppb/day. (Polysorbate-80 is a common ingredient of pharmaceutical preparations, available for example as Tween®-80 from Uniqema Americas LLC, Wilmington Del.)
Optionally, for the pH protective coating or layer 286 in any embodiment, the silicon dissolution rate is less than 160 ppb/day, or less than 140 ppb/day, or less than 120 ppb/day, or less than 100 ppb/day, or less than 90 ppb/day, or less than 80 ppb/day. Optionally, in any embodiment of
Optionally, for the pH protective coating or layer 286 in any embodiment the total silicon content of the pH protective coating or layer and barrier coating, upon dissolution into a test composition with a pH of 8 from the vessel, is less than 66 ppm, or less than 60 ppm, or less than 50 ppm, or less than 40 ppm, or less than 30 ppm, or less than 20 ppm.
pH Protective Coating or Layer Properties of any Embodiment
Theory of Operation
The inventors offer the following theory of operation of the pH protective coating or layer described here. The invention is not limited by the accuracy of this theory or to the embodiments predictable by use of this theory.
The dissolution rate of the SiOx barrier layer is believed to be dependent on SiO bonding within the layer. Oxygen bonding sites (silanols) are believed to increase the dissolution rate.
It is believed that the OMCTS-based pH protective coating or layer bonds with the silanol sites on the SiOx barrier layer to “heal” or passivate the SiOx surface and thus dramatically reduces the dissolution rate. In this hypothesis, the thickness of the OMCTS layer is not the primary means of protection—the primary means is passivation of the SiOx surface. It is contemplated in any embodiment that a pH protective coating or layer as described in this specification can be improved by increasing the crosslink density of the pH protective coating or layer.
Hydrophobic Layer
The protective or lubricity coating or layer of SiwOxCy or its equivalent SiOxCy also can have utility as a hydrophobic layer, independent of whether it also functions as a pH protective coating or layer Suitable hydrophobic coatings or layers and their application, properties, and use are described in U.S. Pat. No. 7,985,188. Dual functional protective/hydrophobic coatings or layers having the properties of both types of coatings or layers can be provided for any embodiment of the present invention.
An embodiment can be carried out under conditions effective to form a hydrophobic pH protective coating or layer on the substrate. Optionally, the hydrophobic characteristics of the pH protective coating or layer can be set by setting the ratio of the 02 to the organosilicon precursor in the gaseous reactant, and/or by setting the electric power used for generating the plasma. Optionally, the pH protective coating or layer can have a lower wetting tension than the uncoated surface, optionally a wetting tension of from 20 to 72 dyne/cm, optionally from 30 to 60 dynes/cm, optionally from 30 to 40 dynes/cm, optionally 34 dyne/cm. Optionally, the pH protective coating or layer can be more hydrophobic than the uncoated surface.
Use of a coating or layer according to any described embodiment is contemplated in any embodiment as (i) a lubricity coating having a lower frictional resistance than the uncoated surface; and/or (ii) a pH protective coating or layer preventing dissolution of the barrier coating in contact with a fluid, and/or (iii) a hydrophobic layer that is more hydrophobic than the uncoated surface.
Some conditions used for production of pH Protective Layers are shown in Table 1.
Syringe samples were produced as follows. A COC 8007 extended barrel syringe was produced according to the Protocol for Forming COC Syringe Barrel. An SiOx barrier coating or layer was applied to the syringe barrels according to the Protocol for Coating COC Syringe Barrel Interior with SiOx. A pH protective coating or layer was applied to the SiOx coated syringes according to the Protocol for Coating COC Syringe Barrel Interior with OMCTS, modified as follows. Argon carrier gas and oxygen were used where noted in Table 2. The process conditions were set to the following, or as indicated in Table 2:
The silicon was extracted using saline water digestion. The tip of each syringe plunger was covered with PTFE tape to prevent extracting material from the elastomeric tip material, then inserted into the syringe barrel base. The syringe barrel was filled with two milliliters of 0.9% aqueous saline solution via a hypodermic needle inserted through the Luer tip of the syringe. This is an appropriate test for extractables because many prefilled syringes are used to contain and deliver saline solution. The Luer tip was plugged with a piece of PTFE beading of appropriate diameter. The syringe was set into a PTFE test stand with the Luer tip facing up and placed in an oven at 50° C. for 72 hours.
Then, either a static or a dynamic mode was used to remove the saline solution from the syringe barrel. According to the static mode indicated in Table 2, the syringe plunger was removed from the test stand, and the fluid in the syringe was decanted into a vessel. According to the dynamic mode indicated in Table 2, the Luer tip seal was removed and the plunger was depressed to push fluid through the syringe barrel and expel the contents into a vessel. In either case, the fluid obtained from each syringe barrel was brought to a volume of 50 ml using 18.2 MΩ-cm deionized water and further diluted 2× to minimize sodium background during analysis. The CVH barrels contained two milliliters and the commercial barrels contained 2.32 milliliters.
Next, the fluid recovered from each syringe was tested for extractable silicon using the Protocol for Measuring Dissolved Silicon in a Vessel. The instrument used was a Perkin Elmer Elan DRC II equipped with a Cetac ASX-520 autosampler. The following ICP-MS conditions were employed:
Aliquots from aqueous dilutions obtained from Syringes E, F, and G were injected and analyzed for Si in concentration units of micrograms per liter. The results of this test are shown in Table 2. While the results are not quantitative, they do indicate that extractables from the pH protective coating or layer are not clearly higher than the extractables for the SiOx barrier layer only. Also, the static mode produced far less extractables than the dynamic mode, which was expected.
Syringe Examples 9, 10, and 11, employing three different pH protective coatings or layers, were produced in the same manner as for Examples 5-8 except as follows or as indicated in Table 3:
Syringe Example 9 had a three-component pH protective coating or layer employing OMCTS, oxygen, and carrier gas. Syringe Example 10 had a two component pH protective coating or layer employing OMCTS and oxygen, but no carrier gas. Syringe Example 11 had a one-component pH protective coating or layer (OMCTS only). Syringes of Examples 9-11 were then tested for lubricity as described for Examples 5-8.
The pH protective coatings or layers produced according to these working examples are also contemplated to function as protective coatings or layers to increase the shelf life of the vessels, compared to similar vessels provided with a barrier coating or layer but no pH protective coating or layer.
Examples 9-11 using an OMCTS precursor gas were repeated in Examples 12-14, except that HMDSO was used as the precursor in Examples 12-14. The results are shown in Table 4. The coatings produced according to these working examples are contemplated to function as pH protective coatings or layers, and also as protective coatings or layers to increase the shelf life of the vessels, compared to similar vessels provided with a barrier coating or layer but no pH protective coating or layer.
The pH protective coatings or layers produced according to these working examples are also contemplated to function as protective coatings or layers to increase the shelf life of the vessels, compared to similar vessels provided with a barrier coating or layer but no pH protective coating or layer.
Summary of Lubricity and/or Protective Measurements
[Table 8 shows a summary of the above OMCTS coatings or layers
16A
The Protocol for Measuring Dissolved Silicon in a Vessel is followed, except as modified here. Test solutions—50 mM buffer solutions at pH 3, 6, 7, 8, 9, and 12 are prepared. Buffers are selected having appropriate pKa values to provide the pH values being studied. A potassium phosphate buffer is selected for pH 3, 7, 8 and 12, a sodium citrate buffer is utilized for pH 6 and tris buffer is selected for pH 9. 3 ml of each test solution is placed in borosilicate glass 5 ml pharmaceutical vials and SiOx coated 5 ml thermoplastic pharmaceutical vials. The vials are all closed with standard coated stoppers and crimped. The vials are placed in storage at 20-25° C. and pulled at various time points for inductively coupled plasma spectrometer (ICP) analysis of Si content in the solutions contained in the vials, in parts per billion (ppb) by weight, for different storage times.
The Protocol for Determining Average Dissolution Rate Si content is used to monitor the rate of glass dissolution, except as modified here. The data is plotted to determine an average rate of dissolution of borosilicate glass or SiOx coating at each pH condition. Representative plots at pH 6 through 8 are
The rate of Si dissolution in ppb is converted to a predicted thickness (nm) rate of Si dissolution by determining the total weight of Si removed, then using a surface area calculation of the amount of vial surface (11.65 cm2) exposed to the solution and a density of SiOx of 2.2 g/cm3.
The coating thicknesses in
The following conclusions are reached, based on this test. First, the amount of dissolved Si in the SiOx coating or glass increases exponentially with increasing pH. Second, the SiOx coating dissolves more slowly than borosilicate glass at a pH lower than 8. The SiOx coating shows a linear, monophasic dissolution over time, whereas borosilicate glass tends to show a more rapid dissolution in the early hours of exposure to solutions, followed by a slower linear dissolution. This may be due to surface accumulation of some salts and elements on borosilicate during the forming process relative to the uniform composition of the SiOx coating. This result incidentally suggests the utility of an SiOx coating on the wall of a borosilicate glass vial to reduce dissolution of the glass at a pH lower than 8. Third, PECVD applied barrier coatings for vials in which pharmaceutical preparations are stored will need to be adapted to the specific pharmaceutical preparation and proposed storage conditions (or vice versa), at least in some instances in which the pharmaceutical preparation interacts with the barrier coating significantly.
An experiment is conducted with vessels coated with SiOx coating+OMCTS pH protective coating or layer, to test the pH protective coating or layer for its functionality as a protective coating or layer. The vessels are 5 mL vials (the vials are normally filled with product to 5 mL; their capacity without headspace, when capped, is about 7.5 mL) composed of cyclic olefin co-polymer (COC, Topas® 6013M-07).
Sixty vessels are coated on their interior surfaces with an SiOx coating produced in a plasma enhanced chemical vapor deposition (PECVD) process using a HMDSO precursor gas according to the Protocol for Coating Tube Interior with SiOx set forth above, except that equipment suitable for coating a vial is used. The following conditions are used.
Eight vials are selected and the total deposited quantity of PECVD coating (SiOx+SiOxCy) is determined with a Perkin Elmer Optima Model 7300DV ICP-OES instrument, using the Protocol for Total Silicon Measurement set forth above. This measurement determines the total amount of silicon in both coatings, and does not distinguish between the respective SiOx and SiOxCy coatings. The results are shown below.
In the following work, except as indicated otherwise in this example, the Protocol for Determining Average Dissolution Rate is followed. Two buffered pH test solutions are used in the remainder of the experiment, respectively at pH 4 and pH 8 to test the effect of pH on dissolution rate. Both test solutions are 50 mM buffers using potassium phosphate as the buffer, diluted in water for injection (WFI) (0.1 um sterilized, filtered). The pH is adjusted to pH 4 or 8, respectively, with concentrated nitric acid.
25 vials are filled with 7.5 ml per vial of pH 4 buffered test solution and 25 other vials are filled with 7.5 ml per vial of pH 4 buffered test solution (note the fill level is to the top of the vial—no head space). The vials are closed using prewashed butyl stoppers and aluminum crimps. The vials at each pH are split into two groups. One group at each pH containing 12 vials is stored at 4CC and the second group of 13 vials is stored at 23° C.
The vials are sampled at Days 1, 3, 6, and 8. The Protocol for Measuring Dissolved Silicon in a Vessel is used, except as otherwise indicated in this example. The analytical result is reported on the basis of parts per billion of silicon in the buffered test solutions of each vial. A dissolution rate is calculated in terms of parts per billion per day as described above in the Protocol for Determining Average Dissolution Rate. The results at the respective storage temperatures follow:
The observations of Si dissolution versus time for the OMCTS-based coating at pH8 and pH 4 indicate the pH 4 rates are higher at ambient conditions. Thus, the pH 4 rates are used to determine how much material would need to be initially applied to leave a coating of adequate thickness at the end of the shelf life, taking account of the amount of the initial coating that would be dissolved. The results of this calculation are:
Based on this calculation, the OMCTS protective layer needs to be about 2.5 times thicker—resulting in dissolution of 33945 ppb versus the 14,371 ppb representing the entire mass of coating tested—to achieve a 3-year calculated shelf life.
The results of Comparative Example 26 and Example 27 above can be compared as follows, where the “pH protective coating or layer” is the coating of SiOxCy referred to in Example BB.
This data shows that the silicon dissolution rate of SiOx alone is reduced by more than 2 orders of magnitude at pH 8 in vials also coated with SiOxCy coatings.
Another comparison is shown by the following data from several different experiments carried out under similar accelerated dissolution conditions, of which the 1-day data is also presented in
Samples 1-6 as listed in Table 9 were prepared as described in Example AA, with further details as follows.
A cyclic olefin copolymer (COC) resin was injection molded to form a batch of 5 ml vials. Silicon chips were adhered with double-sided adhesive tape to the internal walls of the vials. The vials and chips were coated with a two layer coating by plasma enhanced chemical vapor deposition (PECVD). The first layer was composed of SiOx with barrier properties as defined in the present disclosure, and the second layer was an SiOxCy pH protective coating or layer.
A precursor gas mixture comprising OMCTS, argon, and oxygen was introduced inside each vial. The gas inside the vial was excited between capacitively coupled electrodes by a radio-frequency (13.56 MHz) power source. The monomer flow rate (Fm) in units of sccm, oxygen flow rate (Fo) in units of sccm, argon flowrate in sccm, and power (W) in units of watts are shown in Table 9.
A composite parameter, W/FM in units of kJ/kg, was calculated from process parameters W, Fm, Fo and the molecular weight, M in g/mol, of the individual gas species. W/FM is defined as the energy input per unit mass of polymerizing gases. Polymerizing gases are defined as those species that are incorporated into the growing coating such as, but not limited to, the monomer and oxygen. Non-polymerizing gases, by contrast, are those species that are not incorporated into the growing coating, such as but not limited to argon, helium and neon.
In this test, PECVD processing at high W/FM is believed to have resulted in higher monomer fragmentation, producing organosiloxane coatings with higher cross-link density. PECVD processing at low W/FM, by comparison, is believed to have resulted in lower monomer fragmentation producing organosiloxane coatings with a relatively lower cross-link density.
The relative cross-link density of samples 5, 6, 2, and 3 was compared between different coatings by measuring FTIR absorbance spectra. The spectra of samples 5, 6, 2, and 3 are provided in
A qualitative relation—whether the coating appeared oily (shiny, often with iridescence) or non-oily (non-shiny) when applied on the silicon chips—was also found to correlate with the W/FM values in Table 9. Oily appearing coatings deposited at lower W/FM values, as confirmed by Table 9, are believed to have a lower crosslink density, as determined by their lower sym/asym ratio, relative to the non-oily coatings that were deposited at higher W/FM and a higher cross-link density. The only exception to this general rule of thumb was sample 2 in Table 9. It is believed that the coating of sample 2 exhibited a non-oily appearance because it was too thin to see. Thus, an oiliness observation was not reported in Table 9 for sample 2. The chips were analyzed by FTIR in transmission mode, with the infrared spectrum transmitted through the chip and sample coating, and the transmission through an uncoated null chip subtracted.
Non-oily organosiloxane layers produced at higher W/FM values, which protect the underlying SiOx coating from aqueous solutions at elevated pH and temperature, were preferred because they provided lower Si dissolution and a longer shelf life, as confirmed by Table 9. For example, the calculated silicon dissolution by contents of the vial at a pH of 8 and 40° C. was reduced for the non-oily coatings, and the resulting shelf life was 1381 days in one case and 1147 days in another, as opposed to the much shorter shelf lives and higher rates of dissolution for oily coatings. Calculated shelf life was determined as shown for Example AA. The calculated shelf life also correlated linearly to the ratio of symmetric to asymmetric stretching modes of the Si—O—Si bond in organosiloxane pH protective coatings or layers.
Sample 6 can be particularly compared to Sample 5. An organosiloxane, pH protective coating or layer was deposited according to the process conditions of sample 6 in Table 9. The coating was deposited at a high W/FM. This resulted in a non-oily coating with a high Si—O—Si sym/asym ratio of 0.958, which resulted in a low rate of dissolution of 84.1 ppb/day (measured by the Protocol for Determining Average Dissolution Rate) and long shelf life of 1147 days (measured by the Protocol for Determining Calculated Shelf Life). The FTIR spectra of this coating is shown in
An organosiloxane pH protective coating or layer was deposited according to the process conditions of sample 5 in Table 9. The coating was deposited at a moderate W/FM. This resulted in an oily coating with a low Si—O—Si sym/asym ratio of 0.673, which resulted in a high rate of dissolution of 236.7 ppb/day (following the Protocol for Determining Average Dissolution Rate) and shorter shelf life of 271 days (following the Protocol for Determining Calculated Shelf Life). The FTIR spectrum of this coating is shown in
Sample 2 can be particularly compared to Sample 3. A pH protective coating or layer was deposited according to the process conditions of sample 2 in Table 9. The coating was deposited at a low W/FM. This resulted in a coating that exhibited a low Si—O—Si sym/asym ratio of 0.582, which resulted in a high rate of dissolution of 174 ppb/day and short shelf life of 107 days. The FTIR spectrum of this coating is shown in
An organosiloxane, pH protective coating or layer was deposited according to the process conditions of sample 3 in Table 9. The coating was deposited at a high W/FM. This resulted in a non-oily coating with a high Si—O—Si sym/asym ratio of 0.947, which resulted in a low rate of Si dissolution of 79.5 ppb/day (following the Protocol for Determining Average Dissolution Rate) and long shelf life of 1381 days (following the Protocol for Determining Calculated Shelf Life). The FTIR spectrum of this coating is shown in
An experiment similar to Example 27 was carried out, modified as indicated in this example and in Table 10 (where the results are tabulated). 100 5 mL COP vials were made and coated with an SiOx barrier layer and an OMCTS-based pH protective coating or layer as described previously, except that for Sample PC194 only the pH protective coating or layer was applied. The coating quantity was again measured in parts per billion extracted from the surfaces of the vials to remove the entire pH protective coating or layer, as reported in Table 10.
In this example, several different coating dissolution conditions were employed. The test solutions used for dissolution contained either 0.02 or 0.2 wt. % polysorbate-80 surfactant, as well as a buffer to maintain a pH of 8. Dissolution tests were carried out at either 23° C. or 40° C.
Multiple syringes were filled with each test solution, stored at the indicated temperature, and analyzed at several intervals to determine the extraction profile and the amount of silicon extracted. An average dissolution rate for protracted storage times was then calculated by extrapolating the data obtained according to the Protocol for Determining Average Dissolution Rate. The results were calculated as described previously and are shown in Table 10. Of particular note, as shown on Table 10, were the very long calculated shelf lives of the filled packages provided with a PC 194 pH protective coating or layer:
21045 days (over 57 years) based on storage at a pH of 8, 0.02 wt. % polysorbate-80 surfactant, at 23° C.;
38768 days (over 100 years) based on storage at a pH of 8, 0.2 wt. % polysorbate-80 surfactant, at 23° C.;
8184 days (over 22 years) based on storage at a pH of 8, 0.02 wt. % polysorbate-80 surfactant, at 40° C.; and
14732 days (over 40 years) based on storage at a pH of 8, 0.2 wt. % polysorbate-80 surfactant, at 40° C.
Referring to Table 10, the longest calculated shelf lives corresponded with the use of an RF power level of 150 Watts and a corresponding high W/FM value. It is believed that the use of a higher power level causes higher cross-link density of the pH protective coating or layer.
Another series of experiments similar to those of Example 31 are run, showing the effect of progressively increasing the RF power level on the FTIR absorbance spectrum of the pH protective coating or layer. The results are tabulated in Table 11, which in each instance shows a symmetric/assymetric ratio greater than 1.75 between the maximum amplitude of the Si—O—Si symmetrical stretch peak normally located between about 1000 and 1040 cm-1, and the maximum amplitude of the Si—O—Si assymetric stretch peak normally located between about 1060 and about 1100 cm-1. Thus, the symmetric/assymetric ratio is 0.79 at a power level of 20 W, 1.21 or 1.22 at power levels of 40, 60, or 80 W, and 1.26 at 100 Watts under otherwise comparable conditions.
The 150 Watt data in Table 11 is taken under somewhat different conditions than the other data, so it is not directly comparable with the 20-100 Watt data discussed above. The FTIR data of samples 6 and 8 of Table 11 was taken from the upper portion of the vial and the FTIR data of samples 7 and 9 of Table 11 was taken from the lower portion of the vial. Also, the amount of OMCTS was cut in half for samples 8 and 9 of Table 11, compared to samples 6 and 7. Reducing the oxygen level while maintaining a power level of 150 W raised the symmetric/asymmetric ratio still further, as shown by comparing samples 6 and 7 to samples 8 and 9 in Table 11.
It is believed that, other conditions being equal, increasing the symmetric/asymmetric ratio increases the shelf life of a vessel filled with a material having a pH exceeding 5.
Table 12 shows the calculated O-Parameters and N-Parameters (as defined in U.S. Pat. No. 8,067,070) for the experiments summarized in Table 11. As Table 12 shows, the O-Parameters ranged from 0.134 to 0.343, and the N-Parameters ranged from 0.408 to 0.623—all outside the ranges claimed in U.S. Pat. No. 8,067,070.
The purpose of this example was to evaluate the recoverability or drainage of a slightly viscous aqueous solution from glass, COP and coated vials,
This study evaluated the recovery of a 30 cps (centipoise) carbohydrate solution in water-for-injection from (A) an uncoated COP vial, (B) an SiOx+pH protective layer coated COP vial prepared according to the above Protocol for Coating Syringe Barrel Interior with SiOx, followed by the Protocol for Coating Syringe Barrel Interior with OMCTS PH protective Coating or Layer, and (C) a glass vial.
2.0 ml of the carbohydrate solution was pipetted into 30 vials each of glass, COP and pH protective coated vials. The solution was aspirated from the vials with a 10 ml syringe, through a 23 gauge, 1.5″ needle. The vials were tipped to one side as the solution was aspirated to maximize the amount recovered. The same technique and similar withdrawal time was used for all vials. The vials were weighed empty, after placing 2.0 ml of the solution to the vial and at the conclusion of aspirating the solution from the vial. The amount delivered to the vial (A) was determined by subtracting the weight of the empty vial from the weight of the vial with the 2.0 ml of solution. The weight of solution not recovered (B) was determined by subtracting the weight of the empty vial from the weight of the vials after aspirating the solution from the vial. The percent unrecovered was determined by dividing B by A and multiplying by 100.
It was observed during the aspiration of drug product that the glass vials remained wetted with the solution. The COP vial repelled the liquid and as the solution was aspirated from the vials. This helped with recovery but droplets were observed to bead on the sidewalls of the vials during the aspiration. The pH protective coated vials also repelled the liquid during aspiration but no beading of solution on the sidewalls was observed.
The conclusion was that pH protective coated vials do not wet with aqueous solutions as do glass vials, leading to superior recovery of drug product relative to glass. PH protective coated vials were not observed to cause beading of solution on sidewall during aspiration of aqueous products therefore coated vials performed better than uncoated COP vials in product recovery experiments.
Syringe samples were produced as follows. A COC 8007 extended barrel syringe was produced according to the Protocol for Forming COC Syringe Barrel. An SiOx coating or layer was applied to some of the syringes according to the Protocol for coating COC Syringe Barrel Interior with SiOx. A pH protective coating or layer was applied to the SiOx coated syringes according to the Protocol for Coating COC Syringe Barrel Interior with OMCTS Lubricity Coating, modified as follows. The OMCTS was supplied from a vaporizer, due to its low volatility. Argon carrier gas was used. The process conditions were set to the following:
The coater was later determined to have a small leak while producing the samples identified in the Table, which resulted in an estimated oxygen flow of 1.0 sccm. The samples were produced without introducing oxygen.
The coatings produced according to these working examples are contemplated to function as primer coatings or layers, and also as protective coatings or layers to increase the shelf life of the vessels, compared to similar vessels provided with a barrier coating or layer but no pH protective coating or layer.
PECVD Process for Trilayer Coating
The PECVD trilayer coating described in this specification can be applied, for example, as follows for a 1 to 5 mL vessel. Two specific examples are 1 mL thermoplastic resin syringe and a 5 mL thermoplastic resin drug vial. Larger or smaller vessels will call for adjustments in parameters that a person of ordinary skill can carry out in view of the teaching of this specification.
The apparatus used is the PECVD apparatus with rotating quadrupole magnets as described generally in this specification.
The general coating parameter ranges, with preferred ranges in parentheses, for a trilayer coating for a 1 mL syringe barrel are shown in the PECVD Trilayer Process General Parameters Tables (1 mL syringe and 5 mL vial).
Examples of specific coating parameters that have been used for a 1 mL syringe and 5 mL vial are shown in the PECVD Trilayer Process Specific Parameters Tables (1 mL syringe and 5 mL vial):
The O-parameter and N-parameter values for the pH protective coating or layer applied to the 1 mL syringe as described above are 0.34 and 0.55, respectively.
The O-parameter and N-parameter values for the pH protective coating or layer applied to the 5 mL vial are 0.24 and 0.63, respectively.
Referring to
Referring to
A syringe having a coating similar to the trilayer coating of
The three vials were each exposed to 1 N potassium hydroxide for four hours, then exposed for 24 hours to a ruthenium oxide (RuO4) stain that darkens any exposed part of the thermoplastic vial unprotected by the coatings. The high pH potassium hydroxide exposure erodes any exposed part of the barrier coating or layer at a substantial rate, greatly reduced, however by an intact pH protective coating or layer. In particular, the high pH exposure opens up any pinholes in the coating system. As
Protocol for Total Silicon Measurement
This protocol is used to determine the total amount of silicon coatings present on the entire vessel wall. A supply of 0.1 N potassium hydroxide (KOH) aqueous solution is prepared, taking care to avoid contact between the solution or ingredients and glass. The water used is purified water, 18 MΩ quality. A Perkin Elmer Optima Model 7300DV ICP-OES instrument is used for the measurement except as otherwise indicated.
Each device (vial, syringe, tube, or the like) to be tested and its cap and crimp (in the case of a vial) or other closure are weighed empty to 0.001 g, then filled completely with the KOH solution (with no headspace), capped, crimped, and reweighed to 0.001 g. In a digestion step, each vial is placed in an autoclave oven (liquid cycle) at 121° C. for 1 hour. The digestion step is carried out to quantitatively remove the silicon coatings from the vessel wall into the KOH solution. After this digestion step, the vials are removed from the autoclave oven and allowed to cool to room temperature. The contents of the vials are transferred into ICP tubes. The total Si concentration is run on each solution by ICP/OES following the operating procedure for the ICP/OES.
The total Si concentration is reported as parts per billion of Si in the KOH solution. This concentration represents the total amount of silicon coatings that were on the vessel wall before the digestion step was used to remove it.
The total Si concentration can also be determined for fewer than all the silicon layers on the vessel, as when an SiOx barrier layer is applied, an SiOxCy second layer (for example, a lubricity layer or a primer coating or layer) is then applied, and it is desired to know the total silicon concentration of just the SiOxCy layer. This determination is made by preparing two sets of vessels, one set to which only the SiOx layer is applied and the other set to which the same SiOx layer is applied, followed by the SiOxCy layer or other layers of interest. The total Si concentration for each set of vessels is determined in the same manner as described above. The difference between the two Si concentrations is the total Si concentration of the SiOxCy second layer.
Protocol for Measuring Dissolved Silicon in a Vessel
In some of the working examples, the amount of silicon dissolved from the wall of the vessel by a test solution is determined, in parts per billion (ppb), for example to evaluate the dissolution rate of the test solution. This determination of dissolved silicon is made by storing the test solution in a vessel provided with an SiOx and/or SiOxCy coating or layer under test conditions, then removing a sample of the solution from the vessel and testing the Si concentration of the sample. The test is done in the same manner as the Protocol for Total Silicon Measurement, except that the digestion step of that protocol is replaced by storage of the test solution in the vessel as described in this protocol. The total Si concentration is reported as parts per billion of Si in the test solution
Protocol for Determining Average Dissolution Rate
The average dissolution rates reported in the working examples are determined as follows. A series of test vessels having a known total silicon measurement are filled with the desired test solution analogous to the manner of filling the vials with the KOH solution in the Protocol for Total Silicon Measurement. (The test solution can be a physiologically inactive test solution as employed in the present working examples or a physiologically active pharmaceutical preparation intended to be stored in the vessels to form a pharmaceutical package). The test solution is stored in respective vessels for several different amounts of time, then analyzed for the Si concentration in parts per billion in the test solution for each storage time. The respective storage times and Si concentrations are then plotted. The plots are studied to find a series of substantially linear points having the steepest slope.
The plot of dissolution amount (ppb Si) versus days decreases in slope with time, even though it does not appear that the Si layer has been fully digested by the test solution.
For the PC194 test data in Table 10 below, linear plots of dissolution versus time data are prepared by using a least squares linear regression program to find a linear plot corresponding to the first five data points of each of the experimental plots. The slope of each linear plot is then determined and reported as representing the average dissolution rate applicable to the test, measured in parts per billion of Si dissolved in the test solution per unit of time.
Protocol for Determining Calculated Shelf Life
The calculated shelf life values reported in the working examples are determined by extrapolation of the total silicon measurements and average dissolution rates, respectively determined as described in the Protocol for Total Silicon Measurement and the Protocol for Determining Average Dissolution Rate. The assumption is made that under the indicated storage conditions the SiOxCy primer coating or layer will be removed at the average dissolution rate until the coating is entirely removed. Thus, the total silicon measurement for the vessel, divided by the dissolution rate, gives the period of time required for the test solution to totally dissolve the SiOxCy coating. This period of time is reported as the calculated shelf life. Unlike commercial shelf life calculations, no safety factor is calculated. Instead, the calculated shelf life is the calculated time to failure.
It should be understood that because the plot of ppb Si versus hours decreases in slope with time, an extrapolation from relatively short measurement times to relatively long calculated shelf lives is believed to be a “worst case” test that tends to underestimate the calculated shelf life actually obtainable.
This application is a continuation of U.S. application Ser. No. 17/150,841, filed Jan. 15, 2021, which is a continuation of U.S. application Ser. No. 16/029,923, filed Jul. 9, 2018, which is a continuation of U.S. application Ser. No. 15/385,150, filed Dec. 20, 2016, which is a continuation of U.S. application Ser. No. 14/205,329, filed Mar. 11, 2014, which claims priority to U.S. Provisional Applications 61/776,733, filed Mar. 11, 2013, and 61/800,746, filed Mar. 15, 2013. The entire specification and all the drawings of each of these prior applications are incorporated here by reference to provide continuity of disclosure. The specification and drawings of U.S. Pat. No. 7,985,188 are incorporated here by reference in their entirety. That patent describes apparatus, vessels, precursors, coatings or layers and methods (in particular coating methods and test methods for examining the coatings or layers) which can generally be used in performing the present invention, unless stated otherwise herein. They also describe SiOx barrier coatings or layers to which reference is made herein.
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