Methylphenidate Extended Release Chewable Tablet
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Abstract
An oral methylphenidate extended release tablet is described, which can be scored and still retain its extended release profile. The tablet contains a combination of an uncoated methylphenidate-ion exchange resin complex, a barrier coated methylphenidate-ion exchange resin complex-matrix, and an uncomplexed methylphenidate active component. Following administration of a single dose of the extended release methylphenidate chewable tablet, a therapeutically effective amount of methylphenidate is reached in less than about 20 minutes and the composition provides a twelve-hour extended release profile.
8 Citations
31 Claims
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1. (canceled)
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2. An extended release racemic methylphenidate tablet, wherein the tablet is a solid dispersion comprising:
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(a) a racemic methylphenidate component comprising a water-insoluble, water-permeable, pH-independent barrier coated, racemic methylphenidate-cation exchange resin complex which comprises; (i) a racemic methylphenidate-cation exchange resin complex comprising racemic methylphenidate and a pharmaceutically acceptable cation ion exchange resin, wherein the racemic methylphenidate is bound to the pharmaceutically acceptable cation exchange resin; (ii) a water-insoluble, water-permeable, pH-independent, barrier coating comprising a water-insoluble polymer and a plasticizer over the racemic methylphenidate-cation exchange resin complex of (a)(i), wherein the barrier coating modifies the release of the racemic methylphenidate in the complex; and wherein about 50% w/w to about 90% w/w of total racemic methylphenidate in the tablet is provided by the racemic methylphenidate component of (a); and (b) at least one immediate release methylphenidate component which provides a release of the racemic methylphenidate in less than about 30 minutes as determined in an in vitro dissolution assay; wherein the tablet is capable of being swallowed intact or following being divided or chewed and the tablet provides a pharmacokinetic profile for racemic methylphenidate comprising a geometric mean area under the curve (AUC)0-∞
of about 110 ng-hr/mL to about 140 ng-hr/mL and further providing a geometric mean Cmax of about 10 ng/mL to about 15 ng/mL and/or a single mean plasma concentration peak for racemic methylphenidate, and optionally further comprising a Tmax of about 4 hours to about 5.25 hours for racemic methylphenidate, under fasted conditions in adults following a single oral administration of the tablet which has a total amount of racemic methylphenidate which is the equivalent of 40 mg racemic methylphenidate HCl. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. An extended release racemic methylphenidate tablet, wherein the tablet is a solid dispersion comprising:
- wherein the tablet is a solid dispersion comprising;
(a) a racemic methylphenidate component comprising a water-insoluble, water-permeable, pH-independent barrier coated, racemic methylphenidate-cation exchange resin complex which comprises; (i) a racemic methylphenidate-cation exchange resin complex comprising racemic methylphenidate and a pharmaceutically acceptable cation ion exchange resin, wherein the racemic methylphenidate is bound to the pharmaceutically acceptable cation exchange resin; (ii) a water-insoluble, water-permeable, pH-independent, barrier coating comprising cellulose acetate and a plasticizer over the racemic methylphenidate-cation exchange resin complex of (a)(i), wherein the barrier coating modifies the release profile of the racemic methylphenidate; and wherein about 50% w/w to about 90% w/w of total racemic methylphenidate in the chewable tablet is provided by the racemic methylphenidate component of (a); and (b) at least one immediate release methylphenidate component which provides a release of the racemic methylphenidate in less than about 30 minutes as determined in an in vitro dissolution assay and which comprises an immediate release methylphenidate-cation exchange resin complex comprising racemic methylphenidate bound to a pharmaceutically acceptable cation exchange resin; wherein the tablet is capable of being swallowed intact or following being divided or chewed and the tablet provides a pharmacokinetic profile for racemic methylphenidate comprising a geometric mean area under the curve (AUC)0-∞
of about 110 ng-hr/mL to about 140 ng-hr/mL and further providing a geometric mean Cmax of about 10 ng/mL to about 15 ng/mL and/or a single mean plasma concentration peak for racemic methylphenidate, and optionally further comprising a Tmax of about 4 hours to about 5.25 hours for racemic methylphenidate, under fasted conditions in adults following a single oral administration of the tablet which has a total amount of racemic methylphenidate which is the equivalent of 40 mg racemic methylphenidate HCl - View Dependent Claims (29, 30, 31)
- wherein the tablet is a solid dispersion comprising;
Specification