SUSTAINED-RELEASE FORMULATIONS OF TOPIRAMATE

• US 20170266121A1
• Filed: 03/30/2017
• Published: 09/21/2017
• Est. Priority Date: 11/17/2006
• Status: Active Grant

• Current Assignee: Supernus Pharmaceuticals Incorporated
• Original Assignee: Supernus Pharmaceuticals Incorporated
• Inventors: LIANG, Likan, WANG, Hua, BHATT, Padmanabh P., VIEIRA, Michael L.
• Granted Patent: US 10,314,790 B2
• Time in Patent Office: Days
• CPC Class Codes: A61K 31/357 having two or more oxygen atoms in the same ring, e.g. crown ethers, guanadrel
• CPC Class Codes: A61K 31/7048 having oxygen as a ring hetero atom, e.g. leucoglucosan, hesperidin, erythromycin, nystatin , digitoxin or digoxin
• CPC Class Codes: A61K 45/06 Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
• CPC Class Codes: A61K 47/6951 using cyclodextrin cyclodextrins used as simple excipients A61K47/40
• CPC Class Codes: A61K 9/1652 Polysaccharides, e.g. alginate, cellulose derivatives; Cyclodextrin homeopathic globules A61K9/1623
• CPC Class Codes: A61K 9/1676 having a drug-free core with discrete complete coating layer containing drug adsorbates of liquid drug formulations on inert powders without simultaneous granulation step A61K9/141; with further drug-free outer coating A61K9/5078; drug conjugated to non-active particles A61K47/6921
• CPC Class Codes: A61K 9/209 containing drug in at least two layers or in the core and in at least one outer layer
• CPC Class Codes: A61K 9/5042 Cellulose; Cellulose derivatives, e.g. phthalate or acetate succinate esters of hydroxypropyl methylcellulose
• CPC Class Codes: A61K 9/5047 Cellulose ethers containing no ester groups, e.g. hydroxypropyl methylcellulose
• CPC Class Codes: A61K 9/5078 with drug-free core
• CPC Class Codes: A61K 9/5084 Mixtures of one or more drugs in different galenical forms, at least one of which being granules, microcapsules or (coated) microparticles according to A61K9/16 or A61K9/50, e.g. for obtaining a specific release pattern or for combining different drugs tablets containing such a mixture A61K9/2077
• CPC Class Codes: A61P 1/14 Prodigestives, e.g. acids, enzymes, appetite stimulants, antidyspeptics, tonics, antiflatulents
• CPC Class Codes: A61P 11/06 Antiasthmatics
• CPC Class Codes: A61P 11/16 Central respiratory analeptics
• CPC Class Codes: A61P 15/00 Drugs for genital or sexual disorders for disorders of sex hormones A61P5/24; Contraceptives
• CPC Class Codes: A61P 17/00 Drugs for dermatological disorders
• CPC Class Codes: A61P 17/02 for treating wounds, ulcers, burns, scars, keloids, or the like
• CPC Class Codes: A61P 21/02 Muscle relaxants, e.g. for tetanus or cramps
• CPC Class Codes: A61P 25/00 Drugs for disorders of the nervous system
• CPC Class Codes: A61P 25/02 for peripheral neuropathies
• CPC Class Codes: A61P 25/04 : Centrally acting analgesics, e.g. opioids
• CPC Class Codes: A61P 25/06 : Antimigraine agents
• CPC Class Codes: A61P 25/08 : Antiepileptics; Anticonvulsants
• CPC Class Codes: A61P 25/14 : for treating abnormal movements, e.g. chorea, dyskinesia
• CPC Class Codes: A61P 25/18 : Antipsychotics, i.e. neuroleptics; Drugs for mania or schizophrenia
• CPC Class Codes: A61P 25/20 : Hypnotics; Sedatives
• CPC Class Codes: A61P 25/22 : Anxiolytics
• CPC Class Codes: A61P 25/24 : Antidepressants
• CPC Class Codes: A61P 25/28 : for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
• CPC Class Codes: A61P 25/30 : for treating abuse or dependence
• CPC Class Codes: A61P 27/02 : Ophthalmic agents
• CPC Class Codes: A61P 27/06 : Antiglaucoma agents or miotics
• CPC Class Codes: A61P 29/00 : Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
• CPC Class Codes: A61P 3/00 : Drugs for disorders of the metabolism of the blood or the extracellular fluid A61P7/00
• CPC Class Codes: A61P 3/04 : Anorexiants; Antiobesity agents
• CPC Class Codes: A61P 3/06 : Antihyperlipidemics
• CPC Class Codes: A61P 3/10 : for hyperglycaemia, e.g. antidiabetics
• CPC Class Codes: A61P 37/00 : Drugs for immunological or allergic disorders
• CPC Class Codes: A61P 37/02 : Immunomodulators
• CPC Class Codes: A61P 9/10 : for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
• CPC Class Codes: A61P 9/12 : Antihypertensives
• CPC Class Codes: B82Y 5/00 : Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
• CPC Class Codes: Y02A 50/30 : Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

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.

Claims

1-103. -103. (canceled)

104. A sustained release formulation of topiramate comprising topiramate as an active ingredient, the formulation comprising:

(a) at least two extended release (XR) topiramate-containing components, wherein each component comprises 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 formulation exhibits an in vivo steady state maximum plasma concentration of topiramate at 3 or more hours after administration.

105. The formulation according to claim 104, wherein at least one of the at least two XR components further comprises a binder selected from the group consisting of starches, microcrystalline cellulose, hydroxypropyl cellulose, hydroxyethyl cellulose, hydroxypropylmethyl cellulose, and polyvinylpyrrolidone.

106. The formulation according to claim 104, wherein at least one of the at least two XR components further comprises a pore former selected from the group consisting of glucose, fructose, mannitol, mannose, galactose, sorbitol, pullulan, dextran, hydroxyalkylcelluloses, carboxyalkylcelluloses, hydroxypropylmethylcellulose, cellulose ethers, acrylic resins, polyvinylpyrrolidone, cross-linked polyvinylpyrrolidone, polyethylene oxide, carbomer, diols, polyols, polyhydric alcohols, polyalkylene glycols, polyethylene glycols, polypropylene glycols or block polymers thereof, polyglycols, poly(α

-ω

)alkylenediols, alkali metal salts, alkaline earth metal salts, and combinations thereof.

107. The formulation of claim 104, wherein at least a part of the active ingredient is in a form of micronized particles.

108. The formulation of claim 104, wherein the formulation is in a dosage form of a tablet, a pill, a capsule, a caplet, a troche, a pouch, or sprinkles.

109. The formulation of claim 104, wherein the total amount of topiramate in the formulation is from 0.5 to 3000 mg.

110. The formulation of claim 104, wherein at least one of the at least two XR components further comprises an inert carrier selected from the group consisting of cellulose spheres, silicon dioxide, starch, and sugar spheres.

111. The formulation of claim 104, wherein the coating material comprises ethylcellulose, methylcellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, cellulose acetate, cellulose acetate phthalate, polyvinyl alcohol, polyacrylates, polymethacrylates or copolymers thereof.

112. The formulation of claim 104, wherein the formulation provides for a maximum steady state plasma concentration (Cmax) of topiramate which is in the range from 50% to 125% of the maximum plasma concentration produced by the same amount of topiramate administered as an immediate release formulation BID.

113. The formulation of claim 104, wherein the formulation provides for a relative steady state AUC in the range of 80% to 125% of the AUC of the same amount of topiramate administered as an immediate release formulation BID.

114. The formulation of claim 104, further comprising an additional pharmaceutically active ingredient in combination with topiramate.

115. A method of treatment of a neurological and/or psychiatric condition comprising orally administering to a mammalian subject a therapeutically effective amount of a sustained release formulation of topiramate comprising topiramate as an active ingredient, the formulation comprising:

(a) at least two extended release (XR) topiramate-containing components, wherein each component comprises 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 formulation exhibits an in vivo steady state maximum plasma concentration of topiramate at 3 or more hours after administration.

116. The method of claim 115, wherein the neurological and/or psychiatric condition is selected from a group consisting of epilepsy, migraine, essential tremor, restless limb syndrome, cluster headaches, neuralgia, neuropathic pain, Tourette'"'"'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).

117. The method of claim 116, wherein the condition is epilepsy.

118. The method of claim 116, wherein the condition is migraine.

119. The method according to claim 115, wherein at least one of the at least two XR components of the formulation further comprises a binder selected from the group consisting of starches, microcrystalline cellulose, hydroxypropyl cellulose, hydroxyethyl cellulose, hydroxypropylmethyl cellulose, and polyvinylpyrrolidone.

120. The method according to claim 115, wherein at least one of the at least two XR components of the formulation further comprises a pore former selected from the group consisting of glucose, fructose, mannitol, mannose, galactose, sorbitol, pullulan, dextran, hydroxyalkylcelluloses, carboxyalkylcelluloses, hydroxypropylmethylcellulose, cellulose ethers, acrylic resins, polyvinylpyrrolidone, cross-linked polyvinylpyrrolidone, polyethylene oxide, carbomer, diols, polyols, polyhydric alcohols, polyalkylene glycols, polyethylene glycols, polypropylene glycols or block polymers thereof, polyglycols, poly(α

-ω

)alkylenediols, alkali metal salts, alkaline earth metal salts, and combinations thereof.

121. The method of claim 115, wherein the formulation comprises at least a part of the active ingredient in a form of micronized particles.

122. The method of claim 115, wherein the formulation is in a dosage form of a tablet, a pill, a capsule, a caplet, a troche, a pouch, or sprinkles.

123. The method of claim 115, wherein the total amount of topiramate in the formulation is from 0.5 to 3000 mg.

124. The method of claim 115, wherein at least one of the at least two XR components of the formulation further comprises an inert carrier selected from the group consisting of cellulose spheres, silicon dioxide, starch, and sugar spheres.

125. The method of claim 115, wherein the coating material of the formulation comprises ethylcellulose, methylcellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, cellulose acetate, cellulose acetate phthalate, polyvinyl alcohol, polyacrylates, polymethacrylates or copolymers thereof.

126. The method of claim 115, wherein the formulation provides for a maximum steady state plasma concentration (Cmax) of topiramate which is in the range from 50% to 125% of the maximum plasma concentration produced by the same amount of topiramate administered as an immediate release formulation BID.

127. The method of claim 115, wherein the formulation provides for a relative steady state AUC in the range of 80% to 125% of the AUC of the same amount of topiramate administered as an immediate release formulation BID.

128. The method of claim 115, wherein the formulation further comprising an additional pharmaceutically active ingredient in combination with topiramate.