Sustained-release formulations of topiramate
DC CAFCFirst Claim
1. A sustained release formulation of topiramate comprising between 0.5% to 85%, by weight of the formulation, topiramate, which is released immediately and continuously upon administration from the formulation, the formulation comprising:
- (a) an extended release (XR) topiramate-containing component, comprising a coating material selected from the group consisting of cellulosic polymers and acrylic polymers, and, optionally,(b) an immediate release (IR) topiramate-containing component comprising;
(i) a complexing agent selected from the group consisting of hydroxypropyl-beta-cyclodextrin, beta-cyclodextrin, gamma-cyclodextrin, alpha-cyclodextrin, cyclodextrin, and cyclodextrin derivative, and/or(ii) an enhancing agent selected from the group consisting of Vitamin E TPGS, glutamic acid, glycine, sorbitol, mannose, amylose, maltose, mannitol, lactose, sucrose, glucose, xylitose, dextrins, glycerol-polyethylene glycol oxystearate, polyethylene glycol-32 glyceryl palmitostearate, sodium lauryl sulfate, polyoxyethylene sorbitan monooleate, benzyl alcohol, sorbitan monolaurate, polyethylene-polypropylene glycol, polyethylene glycol-3350, polyvinylpyrrolidone-K25, oleic acid, glyceryl monooleate, sodium benzoate, cetyl alcohol, sucrose stearate, crospovidone, sodium starch glycolate, croscarmellose sodium, carboxymethylcellulose, starch, pregelatinized starch, hydroxypropylmethylcellulose (HPMC), substituted hydroxypropylcellulose, microcrystalline cellulose, sodium bicarbonate, calcium citrate, sodium docusate, menthol, and combinations thereof,wherein the XR component exhibits a maximum plasma concentration of topiramate in vivo between 4 and 8.5 hours, inclusive, after a single initial dose.
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Abstract
Pharmaceutical compositions of topiramate for once-a-day oral administration are provided. The formulations comprise a sustained-release component and an optional immediate-release component, the compositions of which can be selectively adjusted, respectively, to release the active ingredient along a pre-determined release profile. Method of treating or preventing pathological disorders in mammalian subjects comprising the administration of the novel formulations disclosed herein is also provided.
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Citations
20 Claims
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1. A sustained release formulation of topiramate comprising between 0.5% to 85%, by weight of the formulation, topiramate, which is released immediately and continuously upon administration from the formulation, the formulation comprising:
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(a) an extended release (XR) topiramate-containing component, comprising a coating material selected from the group consisting of cellulosic polymers and acrylic polymers, and, optionally, (b) an immediate release (IR) topiramate-containing component comprising; (i) a complexing agent selected from the group consisting of hydroxypropyl-beta-cyclodextrin, beta-cyclodextrin, gamma-cyclodextrin, alpha-cyclodextrin, cyclodextrin, and cyclodextrin derivative, and/or (ii) an enhancing agent selected from the group consisting of Vitamin E TPGS, glutamic acid, glycine, sorbitol, mannose, amylose, maltose, mannitol, lactose, sucrose, glucose, xylitose, dextrins, glycerol-polyethylene glycol oxystearate, polyethylene glycol-32 glyceryl palmitostearate, sodium lauryl sulfate, polyoxyethylene sorbitan monooleate, benzyl alcohol, sorbitan monolaurate, polyethylene-polypropylene glycol, polyethylene glycol-3350, polyvinylpyrrolidone-K25, oleic acid, glyceryl monooleate, sodium benzoate, cetyl alcohol, sucrose stearate, crospovidone, sodium starch glycolate, croscarmellose sodium, carboxymethylcellulose, starch, pregelatinized starch, hydroxypropylmethylcellulose (HPMC), substituted hydroxypropylcellulose, microcrystalline cellulose, sodium bicarbonate, calcium citrate, sodium docusate, menthol, and combinations thereof, wherein the XR component exhibits a maximum plasma concentration of topiramate in vivo between 4 and 8.5 hours, inclusive, after a single initial dose. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A sustained release formulation of topiramate comprising between 0.5% to 85%, by weight of the formulation, topiramate, which is released immediately and continuously upon administration from the formulation, the formulation comprising:
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(a) an extended release (XR) topiramate-containing component, comprising a coating material selected from the group consisting of cellulosic polymers and acrylic polymers, and, optionally, (b) an immediate release (IR) topiramate-containing component comprising; (i) a complexing agent selected from the group consisting of hydroxypropyl-beta-cyclodextrin, beta-cyclodextrin, gamma-cyclodextrin, alpha-cyclodextrin, cyclodextrin, and cyclodextrin derivative, and/or (ii) an enhancing agent selected from the group consisting of Vitamin E TPGS, glutamic acid, glycine, sorbitol, mannose, amylose, maltose, mannitol, lactose, sucrose, glucose, xylitose, dextrins, glycerol-polyethylene glycol oxystearate, polyethylene glycol-32 glyceryl palmitostearate, sodium lauryl sulfate, polyoxyethylene sorbitan monooleate, benzyl alcohol, sorbitan monolaurate, polyethylene-polypropylene glycol, polyethylene glycol-3350, polyvinylpyrrolidone-K25, oleic acid, glyceryl monooleate, sodium benzoate, cetyl alcohol, sucrose stearate, crospovidone, sodium starch glycolate, croscarmellose sodium, carboxymethylcellulose, starch, pregelatinized starch, hydroxypropylmethylcellulose (HPMC), substituted hydroxypropylcellulose, microcrystalline cellulose, sodium bicarbonate, calcium citrate, sodium docusate, menthol, and combinations thereof, wherein the XR component exhibits a maximum plasma concentration of topiramate in vivo at 16 or more hours after a single initial dose.
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15. A method of treatment of a neurological and/or psychiatric condition selected from the group consisting of epilepsy, migraine, essential tremor, restless limb syndrome, cluster headaches, neuralgia, neuropathic pain, Tourrette'"'"'s syndrome, infantile spasms, bipolar disorder, dementia, depression, psychosis, mania, anxiety, schizophrenia, obsessive-compulsive disorder, post-traumatic stress disorder, attention deficit hyperactivity disorder (ADHD), impulse control disorders, border line personality disorder, addiction, autism, chronic neurodegenerative disorders, acute neurodegeneration, and amyotrophic lateral sclerosis (ALS), comprising orally administering to a mammalian subject a therapeutically effective amount of a sustained release formulation of topiramate comprising between 0.5% to 85%, by weight of the formulation, topiramate, the formulation comprising:
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(a) an extended release (XR) topiramate-containing component, comprising a coating material selected from the group consisting of cellulosic polymers and acrylic polymers, and, optionally, (b) an immediate release (IR) topiramate-containing component comprising; (i) a complexing agent selected from the group consisting of hydroxypropyl-beta-cyclodextrin, beta-cyclodextrin, gamma-cyclodextrin, alpha-cyclodextrin, cyclodextrin, and cyclodextrin derivative, and/or (ii) an enhancing agent selected from the group consisting of Vitamin E TPGS, glutamic acid, glycine, sorbitol, mannose, amylose, maltose, mannitol, lactose, sucrose, glucose, xylitose, dextrins, glycerol-polyethylene glycol oxystearate, polyethylene glycol-32 glyceryl palmitostearate, sodium lauryl sulfate, polyoxyethylene sorbitan monooleate, benzyl alcohol, sorbitan monolaurate, polyethylene-polypropylene glycol, polyethylene glycol-3350, polyvinylpyrrolidone-K25, oleic acid, glyceryl monooleate, sodium benzoate, cetyl alcohol, sucrose stearate, crospovidone, sodium starch glycolate, croscarmellose sodium, carboxymethylcellulose, starch, pregelatinized starch, hydroxypropylmethylcellulose (HPMC), substituted hydroxypropylcellulose, microcrystalline cellulose, sodium bicarbonate, calcium citrate, sodium docusate, menthol, and combinations thereof, wherein administration of the formulation releases topiramate immediately and continuously and wherein the XR component exhibits a maximum plasma concentration of topiramate in vivo between 4 and 8.5 hours, inclusive, after a single initial dose. - View Dependent Claims (16, 17)
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18. A method of treatment of a neurological and/or psychiatric condition selected from the group consisting of epilepsy, migraine, essential tremor, restless limb syndrome, cluster headaches, neuralgia, neuropathic pain, Tourrette'"'"'s syndrome, infantile spasms, bipolar disorder, dementia, depression, psychosis, mania, anxiety, schizophrenia, obsessive-compulsive disorder, post-traumatic stress disorder, attention deficit hyperactivity disorder (ADHD), impulse control disorders, border line personality disorder, addiction, autism, chronic neurodegenerative disorders, acute neurodegeneration, and amyotrophic lateral sclerosis (ALS), comprising orally administering to a mammalian subject a therapeutically effective amount of a sustained release formulation of topiramate comprising between 0.5% to 85%, by weight of the formulation, topiramate, the formulation comprising:
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(a) an extended release (XR) topiramate-containing component, comprising a coating material selected from the group consisting of cellulosic polymers and acrylic polymers, and, optionally, (b) an immediate release (IR) topiramate-containing component comprising; (i) a complexing agent selected from the group consisting of hydroxypropyl-beta-cyclodextrin, beta-cyclodextrin, gamma-cyclodextrin, alpha-cyclodextrin, cyclodextrin, and cyclodextrin derivative, and/or (ii) an enhancing agent selected from the group consisting of Vitamin E TPGS, glutamic acid, glycine, sorbitol, mannose, amylose, maltose, mannitol, lactose, sucrose, glucose, xylitose, dextrins, glycerol-polyethylene glycol oxystearate, polyethylene glycol-32 glyceryl palmitostearate, sodium lauryl sulfate, polyoxyethylene sorbitan monooleate, benzyl alcohol, sorbitan monolaurate, polyethylene-polypropylene glycol, polyethylene glycol-3350, polyvinylpyrrolidone-K25, oleic acid, glyceryl monooleate, sodium benzoate, cetyl alcohol, sucrose stearate, crospovidone, sodium starch glycolate, croscarmellose sodium, carboxymethylcellulose, starch, pregelatinized starch, hydroxypropylmethylcellulose (HPMC), substituted hydroxypropylcellulose, microcrystalline cellulose, sodium bicarbonate, calcium citrate, sodium docusate, menthol, and combinations thereof, wherein administration of the formulation releases topiramate immediately and continuously and wherein the XR component exhibits a maximum plasma concentration of topiramate in vivo at 16 or more hours after a single initial dose. - View Dependent Claims (19, 20)
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Specification