Controlled onset and sustained release dosage forms and the preparation thereof
First Claim
Patent Images
1. A pharmaceutical composition for controlled onset and sustained release of an active ingredient, said composition comprising:
- (i) a core comprising;
(a) an active ingredient;
(b) a hydrophilic carrier;
(c) a hydrodynamic diffusion enhancer; and
optionally (d) conventional pharmaceutically acceptable excipients selected from the group consisting of binders, fillers and lubricants and combinations thereof; and
(ii) a functional coating membrane surrounding said core, and optionally (iii) a seal coating membrane between the core and the functional coating membrane, and optionally (iv) a top coating membrane surrounding the functional coating membrane;
wherein said composition provides a sustained release of the active ingredient from the composition for about 6 to about 24 hours.
0 Assignments
0 Petitions
Accused Products
Abstract
A pharmaceutical composition for controlled onset and sustained release of an active ingredient, said composition comprising:
(i) a core comprising:
(a) an active ingredient;
(b) a hydrophilic carrier;
(c) a hydrodynamic diffusion enhancer; and optionally
(d) conventional pharmaceutically acceptable excipients selected from the group consisting of binders, fillers and lubricants and combinations thereof; and
(ii) a functional coating membrane surrounding said core.
230 Citations
46 Claims
-
1. A pharmaceutical composition for controlled onset and sustained release of an active ingredient, said composition comprising:
-
(i) a core comprising;
(a) an active ingredient;
(b) a hydrophilic carrier;
(c) a hydrodynamic diffusion enhancer; and
optionally(d) conventional pharmaceutically acceptable excipients selected from the group consisting of binders, fillers and lubricants and combinations thereof; and
(ii) a functional coating membrane surrounding said core, and optionally (iii) a seal coating membrane between the core and the functional coating membrane, and optionally (iv) a top coating membrane surrounding the functional coating membrane;
wherein said composition provides a sustained release of the active ingredient from the composition for about 6 to about 24 hours.- View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
(I) an anti-inflammatory drug selected from the group consisting of phenylbutazone, indomethacin, naproxen, ibuprofen, flurbiprofen, diclofenac, dexamethasone, oxaprozin, prednisone and prednisolone; (II) a coronary dilator drug selected from the group consisting of glyceryl trinitrate, isosorbide dinitrate and pentaerythritol tetranitrate;
(III) a peripheral vasodilator drug selected from the group consisting of naftidrofuryl oxalate, cyclandelate and nicotinic acid;
(IV) an anti-infective drug selected from the group consisting of erythromycin, cephalexin, naldixic acid, clarithromycin, cefuroxime, cefaclor, cefprozil, zidovudine, acyclovir, ofloxacin, ciprofloxacillin, azithromycin and flucloxacillin sodium;
(V) a psychotropic and/or an antianxiety drug selected from the group consisting of fluazepam, diazepam, amitryptaline, doxepine, thioridazine, trifluperazine, fluphenazine, piperothiazine, haloperidol, maprotiline hydrochloride, imipremine, clorazepate, estazolam, lorazepam, alprazolam, bupropion, fluoxetine, buspirone, clonazepam, sertaline, zolpidem, desmethylimipramine, lithium carbonate, lithium sulfate and methylphenidate;
(VI) a central stimulant drug selected from the group consisting of isoproterinol, amphetamine sulphate and amphetamine hydrochloride;
(VII) an antihistamine drug selected from the group consisting of chlorpheniramine, bropheniramine, fexofenadine, loratidine and diphenhydramine;
(VIII) a laxative and/or antidiarrheal drug selected from the group consisting of bisacodyl, magnesium hydroxide, loperamide, diphenoxylate, and dioctyl sodium sulfosuccinate;
(IX) a decongestant drug selected from the group consisting of phenylpropanolamine and pseudoephedrine;
(X) a vitamin substance selected from the group consisting of alphatocopherol, thiamin, pyridoxine and ascorbic acid;
(XI) an antacid selected from the group consisting of aluminum trisilicate, aluminum hydroxide, cimetidine, ranitidine, famotidine, omeprazole and nizatidine;
(XII) a gastrointestinal sedative selected from the group consisting of propantheline bromide and metoclorpramide;
(XIII) a cerebral vasodilator selected from the group consisting of soloctidilum, naftidrofuryl oxalate, co-dergocrine mesylate, papaverine and pentoxifylline;
(XIV) an anti-anginal drug selected from the group consisting of isosorbide dinitrate, pentaerythritol tetranitrate, verapamil, nifedipine, diltiazem, and glyceryl trinitrate;
(XV) an antiarrythmic selected from the group consisting of verapamil, nifedipine, diltiazem, disopyramide, bretylium tosylate, quinidine sulfate, quinidine gluconate and procainamide;
(XVI) an antihypertensive selected from the group consisting of methyldopa, captopril, hydralazine, propranolol, labetalol, sotalol, terazosin, enalapril, lisinopril, quinalapril, benazepril, ramipril, clonidine, fosinopril, felodipine, immodipine and amlodipine;
(XVII) a vasoconstrictor selected from the group consisting of ergotamine;
(XVIII) a substance which influences blood coagulability selected from the group consisting of protamine sulfate and epsilon aminocaproic acid;
(XIX) a hypnotic selected from the group consisting of dichloral phenazone, nitrazepam and temazepam;
(XX) an antinauseant selected from the group consisting of chlorpromazine and promethazine theoclate;
(XXI) an anticonvulsant selected from the group consisting of sodium valproate, phenytoin sodium, divalproex sodium and carbamezipine;
(XXII) a neuromuscular drug selected from the group consisting of dentrolene sodium;
(XXIII) a hypoglycemic agent selected from the group consisting of diabenese, insulin, glyburide, glipizide and troglitazone;
(XXIV) a drug used in treating thyroid gland disorders, selected from the group consisting of thyroxin, triiodothyronine and propylthiouracil;
(XXV) a diuretic selected from the group consisting of furosemide, chlorthalidone, hydrochlorthiazide, spironolactone, triampterene and indapamide;
(XXVI) a uterine relaxant medication selected from the group consisting of ritodrine;
(XXVII) an appetite suppressant selected from the group consisting of asphenteramine, diethylproprion hydrochloride and fenfluramine hydrochloride;
(XXVIII) an erythropoietic substance selected from group consisting of folic acid, calcium gluconate and ferrous sulphate;
(XXIX) an antiasthmatic drug selected from the group consisting of aminophylline, theophylline, orciprenaline sulphate, terbutaline sulphate, albuterol and salbutamol;
(XXX) an expectorant selected from the group consisting of carbocisteine and guaiphenesin;
(XXXI) a cough suppressant selected from the group consisting of noscapine, codeine phosphate, codeine sulfate, oxycodone, dihydrocodeine tartrate, oxycodeinone and dextromethorphan;
(XXXII) an antiuricemic drug selected from the group consisting of allopurinol, probenecid and sulphinpyrazone;
(XXXIII) an antiseptic selected from the group consisting of cetylpyridinium chloride, tyrothricin and chlorhexidine;
(XXXIV) an antilipidimic or anticholesterol agent selected from the group consisting of lovastatin, gemfibrozil, simvastatin and pravastatin; and
pharmaceutically acceptable salts thereof.
-
-
2. A method for preparing a controlled onset sustained release pharmaceutical composition, said composition comprising:
-
(i) a core comprising;
(a) an active ingredient;
(b) a hydrophilic carrier;
(c) a hydrodynamic diffusion enhancer; and
optionally(d) conventional pharmaceutically acceptable excipients selected from the group consisting of binders, fillers and lubricants;
(ii) a functional coating membrane surrounding said core; and
optionally;
(iii) a seal coating membrane between the core and the functional coating membrane, and optionally;
(iv) a top coating membrane surrounding the functional coating membrane;
wherein the method comprises; (v) blending the active ingredient with the hydrophilic carrier, the hydrodynamic diffusion enhancer and optionally with the conventional pharmaceutically acceptable excipients;
(vi) granulating the blend with a binder to obtain a wet mass;
(vii) drying the wet mass at 60°
C. for 3 hours;
(viii) lubricating the granules with a lubricant;
(ix) compressing the lubricated granules to form a core;
(x) applying a functional coating membrane containing aqueous polymeric dispersions, with dispersed plasticizers, and film extenders/diffusion enhancers to the surface of the core; and
(xi) curing of the coated core at a temperature range of 30°
C.-80°
C. for up to 12 hours; and
optionally(xii) after forming the core, applying a seal coating membrane to the surface of the core to smooth out the surface; and
optionally(xiii) after applying the functional coating membrane, applying a top coating membrane containing aqueous coating dispersions to the surface of the functional coating membrane. - View Dependent Claims (26, 27, 28, 29, 30, 32, 33, 34, 35, 36, 41)
-
-
3. A method for administering an active ingredient to a patient in need of therapy, which method comprises:
-
administering a controlled onset sustained release pharmaceutical composition to the patient, said composition comprising;
(i) a core comprising;
(a) an active ingredient;
(b) a hydrophilic carrier;
(c) a hydrodynamic diffusion enhancer; and
optionally(d) conventional pharmaceutically acceptable excipients selected from the group consisting of binders, fillers and lubricants and combinations thereof; and
(ii) a functional coating membrane surrounding said core, and optionally (iii) a seal coating membrane between the core and the functional coating membrane, and optionally (iv) a top coating membrane surrounding the functional coating membrane;
wherein said composition provides a sustained release of the active ingredient from the composition for about 6 to about 24 hours.
-
-
25. A method for producing a delay of from about 30 minutes to about 6 hours in the onset of release of an active ingredient from a pharmaceutical composition in a patient in need of therapy, wherein the method comprises:
-
(A) administering a controlled onset sustained release pharmaceutical composition to the patient, said composition comprising;
(i) a core comprising;
(a) an active ingredient;
(b) a hydrophilic carrier;
(c) a hydrodynamic diffusion enhancer; and
optionally(d) conventional pharmaceutically acceptable excipients selected from the group consisting of binders, fillers and lubricants and combinations thereof; and
(ii) a functional coating membrane surrounding said core, and optionally (iii) a seal coating membrane between the core and the functional coating membrane, and optionally (iv) a top coating membrane surrounding the functional coating membrane. - View Dependent Claims (31, 37, 38, 39, 40, 42, 43, 44, 45, 46)
(I) an anti-inflammatory drug selected from the group consisting of phenylbutazone, indomethacin, naproxen, ibuprofen, flurbiprofen, diclofenac, dexamethasone, oxaprozin, prednisone and prednisolone; (II) a coronary dilator drug selected from the group consisting of glyceryl trinitrate, isosorbide dinitrate and pentaerythritol tetranitrate;
(III) a peripheral vasodilator drug selected from the group consisting of naftidrofuryl oxalate, cyclandelate and nicotinic acid;
(IV) an anti-infective drug selected from the group consisting of erythromycin, cephalexin, naldixic acid, clarithromycin, cefuroxime, cefaclor, cefprozil, zidovudine, acyclovir, ofloxacin, ciprofloxacillin, azithromycin and flucloxacillin sodium;
(V) a psychotropic and/or an antianxiety drug selected from the group consisting of fluazepam, diazepam, amitryptaline, doxepine, thioridazine, trifluperazine, fluphenazine, piperothiazine, haloperidol, maprotiline hydrochloride, imipremine, clorazepate, estazolam, lorazepam, alprazolam, bupropion, fluoxetine, buspirone, clonazepam, sertaline, zolpidem, desmethylimipramine, lithium carbonate, lithium sulfate and methylphenidate;
(VI) a central stimulant drug selected from the group consisting of isoproterinol, amphetamine sulphate and amphetamine hydrochloride;
(VII) an antihistamine drug selected from the group consisting of chlorpheniramine, bropheniramine, fexofenadine, loratidine and diphenhydramine;
(VIII) a laxative and/or antidiarrheal drug selected from the group consisting of bisacodyl, magnesium hydroxide, loperamide, diphenoxylate, and dioctyl sodium sulfosuccinate;
(IX) a decongestant drug selected from the group consisting of phenylpropanolamine and pseudoephedrine;
(X) a vitamin substance selected from the group consisting of alphatocopherol, thiamin, pyridoxine and ascorbic acid;
(XI) an antacid selected from the group consisting of aluminum trisilicate, aluminum hydroxide, cimetidine, ranitidine, famotidine, omeprazole and nizatidine;
(XII) a gastrointestinal sedative selected from the group consisting of propantheline bromide and metoclorpramide;
(XIII) a cerebral vasodilator selected from the group consisting of soloctidilum, naftidrofuryl oxalate, co-dergocrine mesylate, papaverine and pentoxifylline;
(XIV) an anti-anginal drug selected from the group consisting of isosorbide dinitrate, pentaerythritol tetranitrate, verapamil, nifedipine, diltiazem, and glyceryl trinitrate;
(XV) an antiarrythmic selected from the group consisting of verapamil, nifedipine, diltiazem, disopyramide, bretylium tosylate, quinidine sulfate, quinidine gluconate and procainamide;
(XVI) an antihypertensive selected from the group consisting of methyldopa, captopril, hydralazine, propranolol, labetalol, sotalol, terazosin, enalapril, lisinopril, quinalapril, benazepril, ramipril, clonidine, fosinopril, felodipine, immodipine and amlodipine;
(XVII) a vasoconstrictor selected from the group consisting of ergotamine;
(XVIII) a substance which influences blood coagulability selected from the group consisting of protamine sulfate and epsilon aminocaproic acid;
(XIX) a hypnotic selected from the group consisting of dichloral phenazone, nitrazepam and temazepam;
(XX) an antinauseant selected from the group consisting of chlorpromazine and promethazine theoclate;
(XXI) an anticonvulsant selected from the group consisting of sodium valproate, phenytoin sodium, divalproex sodium and carbamezipine;
(XXII) a neuromuscular drug selected from the group consisting of dentrolene sodium;
(XXIII) a hypoglycemic agent selected from the group consisting of diabenese, insulin, glyburide, glipizide and troglitazone;
(XXIV) a drug used in treating thyroid gland disorders, selected from the group consisting of thyroxin, triiodothyronine and propylthiouracil;
(XXV) a diuretic selected from the group consisting of furosemide, chlorthalidone, hydrochlorthiazide, spironolactone, triampterene and indapamide;
(XXVI) a uterine relaxant medication selected from the group consisting of ritodrine;
(XXVII) an appetite suppressant selected from the group consisting of asphenteramine, diethylproprion hydrochloride and fenfluramine hydrochloride;
(XXVIII) an erythropoietic substance selected from group consisting of folic acid, calcium gluconate and ferrous sulphate;
(XXIX) an antiasthmatic drug selected from the group consisting of aminophylline, theophylline, orciprenaline sulphate, terbutaline sulphate, albuterol and salbutamol;
(XXX) an expectorant selected from the group consisting of carbocisteine and guaiphenesin;
(XXXI) a cough suppressant selected from the group consisting of noscapine, codeine phosphate, codeine sulfate, oxycodone, dihydrocodeine tartrate, oxycodeinone and dextromethorphan;
(XXXII) an antiuricemic drug selected from the group consisting of allopurinol, probenecid and sulphinpyrazone;
(XXXIII) an antiseptic selected from the group consisting of cetylpyridinium chloride, tyrothricin and chlorhexidine;
(XXXIV) an antilipidimic or anticholesterol agent selected from the group consisting of lovastatin, gemfibrozil, simvastatin and pravastatin; and
pharmaceutically acceptable salts thereof.
-
-
37. The method of claim 25, 28 or 29 wherein the hydrophilic carrier in said core is present in a concentration of about 5 to 99% W/W of the weight of the core.
-
38. The method of claim 25, 28 or 29 wherein the hydrodynamic diffusion enhancer is selected from the group consisting of sodium starch glycolate, sodium croscarmellose, gellan gum, crospovidone, starches, clays, celluloses, cellulose derivatives, alginates and combinations thereof.
-
39. The method of claim 25, 28 or 29 wherein the hydrodynamic diffusion enhancer in said core is present in a concentration of about 5 to 60% W/W of the weight of the core.
-
40. The method of claim 25, 28 or 29 wherein the binders in said core are present in a concentration of about 1 to 10% W/W of the weight of the core.
-
42. The method of claim 25, 28 or 29 wherein the fillers in said core are present in a concentration of about 2 to 40% W/W of the weight of the core.
-
43. The method of claim 25, 28 or 29 wherein the lubricants and flow promoters are selected from the group consisting of stearic acid, talc, waxes, stearic acid salts, stearic acid derivatives, sodium stearyl fumarate, corn starch, silica derivatives and combinations thereof.
-
44. The method of claim 25, 28 or 29 wherein the lubricants in said core are present in a concentration of about 0.25 to 4% W/W of the weight of the core.
-
45. The method of claim 25, 28 or 29 wherein the functional coating membrane is an aqueous polymeric dispersion comprising dispersed plasticizers, film extenders and diffusion enhancers and wherein said aqueous polymeric dispersion is present in a concentration of about 1-25% W/W of the weight of the core.
-
46. The method of claim 45 wherein the ratio of the polymer to film extender in the aqueous polymeric dispersion is from about 0.25-0.75 to 0.99-0.01.
Specification