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WO2025128057A1 - A sachet formulation comprising brivaracetam - Google Patents

A sachet formulation comprising brivaracetam Download PDF

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Publication number
WO2025128057A1
WO2025128057A1 PCT/TR2024/051508 TR2024051508W WO2025128057A1 WO 2025128057 A1 WO2025128057 A1 WO 2025128057A1 TR 2024051508 W TR2024051508 W TR 2024051508W WO 2025128057 A1 WO2025128057 A1 WO 2025128057A1
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Prior art keywords
acid
sodium
formulation according
mixtures
sachet formulation
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/TR2024/051508
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French (fr)
Inventor
Fatih Sunel
Fadime Bilgehan ATAK
Seval Ataman
Ozlem YAZICI
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Sanovel Ilac Sanayi ve Ticaret AS
Original Assignee
Sanovel Ilac Sanayi ve Ticaret AS
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Publication of WO2025128057A1 publication Critical patent/WO2025128057A1/en
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/40—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
    • A61K31/4015—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil having oxo groups directly attached to the heterocyclic ring, e.g. piracetam, ethosuximide
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/0087—Galenical forms not covered by A61K9/02 - A61K9/7023
    • A61K9/0095—Drinks; Beverages; Syrups; Compositions for reconstitution thereof, e.g. powders or tablets to be dispersed in a glass of water; Veterinary drenches
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • A61K9/1605—Excipients; Inactive ingredients
    • A61K9/1617—Organic compounds, e.g. phospholipids, fats
    • A61K9/1623—Sugars or sugar alcohols, e.g. lactose; Derivatives thereof; Homeopathic globules
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2004—Excipients; Inactive ingredients
    • A61K9/2013—Organic compounds, e.g. phospholipids, fats
    • A61K9/2018—Sugars, or sugar alcohols, e.g. lactose, mannitol; Derivatives thereof, e.g. polysorbates

Definitions

  • the present invention relates to a sachet formulation comprising brivaracetam or a pharmaceutically acceptable salt thereof, and at least one sweetener, wherein the amount of brivaracetam is between 1.0% and 15.0% by weight in the total formulation.
  • the present invention also relates to a simple, rapid, cost effective, time-saving and industrially convenient process of preparing the sachet formulation.
  • brivaracetam (2S)-2-[(4R)-2-oxo-4-propyl-pyrrolidin-l-yl] butanamide and its chemical structure is shown in the Formula I.
  • Brivaracetam is a white to off-white crystalline powder. It is very soluble in water, buffer (pH 1.2, 4.5 and 7.4), ethanol, methanol, and glacial acetic acid. It is freely soluble in acetonitrile and acetone and soluble in toluene. It is very slightly soluble in n-hexane. Additionally, brivaracetam is an extremely viscous compound (adhesive capacity).
  • Brivaracetam is commercially approved in the form of tablets, oral solution and injection, in the USA under the brand name Briviact and are marketed by UCB Pharma.
  • Brivaracetam Due to Brivaracetam's high adhesion properties, we wanted to create a simple and homogeneous sachet formulation by using a several excipients. In this way, the disadvantages of the active substance will be eliminated and patient compliance will be ensured by providing ease of use. Creating sachet formulations provides a more convenient and easier method for active substances that have such disadvantages. Brivaracetam has low melting point that result in some challenges in tablet coating such as pitting of the coating layer. Since the use of sachet formulation does not contain a coating, it has become advantageous in terms of physical stability as well as patient compliance.
  • Brivaracetam has a bitter taste so this is a problem that should be overcome. Therefore, it is needed to develop a sachet formulation which has a desired acceptable taste for patients.
  • a sachet formulation was developed to cater for patients who have difficulty swallowing tablets.
  • the formulation was developed in order to create a solution of acceptable taste, consistency and stability.
  • the main object of the present invention provides a sachet formulation comprising brivaracetam having the desired stability, content uniformity and dissolution profile.
  • Another object of the present invention is to eliminate the problems related to active ingredients and to obtain a solution with pleasant taste when the sachet formulation dissolves in water.
  • Another object of the present invention is to provide a process of preparing a sachet formulation comprising brivaracetam which is simple and cost-effective process.
  • the sachet formulations with a good solubility result in a homogenous mixture.
  • Taste is one of the most important parameters governing patient compliance for sachet formulations. It has been surprisingly found that using a sachet formulation comprising brivaracetam with an excipient that is a sweetener, we have achieved a formulation that provides the desired stability, dissolution profile and gives the tablet a good taste.
  • sachet formulations have become an issue with increasing importance in terms of patient compliance as compared to conventional solid dosage forms such as capsules and tablets. This issue is more important in terms of patients having difficulty in swallowing. For these reasons, sachet formulations are one of the advantageous routes for administering the drugs comprising brivaracetam and provide a higher patient compliance along with recommended pharmaceutical therapies.
  • a sachet formulation comprises brivaracetam or a pharmaceutically acceptable salt thereof, and at least one pharmaceutically acceptable sweetener, wherein the amount of brivaracetam is between 0.1% and 15.0% by weight in the total formulation.
  • the amount of brivaracetam is between 1.0% and 7.0% by weight in the total formulation.
  • the high adhesion properties of brivaracetam its use at this ratio provided the desired dissolution profile.
  • Suitable sweeteners are selected from the group comprising sucralose, sucrose, mannitol, saccharin, neotame, xylose, maltitol, aspartame, maltol, sorbitol, glucose, menthol, peppermint and xylitol or mixtures thereof.
  • the sweetener is sucralose or sucrose or mannitol or saccharin or neotame or mixtures thereof.
  • the sweeteners used also help to provide the stability of the sachet form.
  • a sachet formulation further comprises at least one pharmaceutically acceptable excipient which is selected from the group comprising flavouring agent, pH agent, acid source, gas generating agent, binders or mixtures thereof.
  • Suitable flavouring agents are selected from the group comprising orange, lemon, cherry, menthol, peppermint, cinnamon, chocolate, vanillin, strawberry, grape, black currant, raspberry, banana, red fruits, wild berries or mixtures thereof.
  • the flavouring agent is orange or lemon or mixtures thereof.
  • Suitable pH agents are selected from the group comprising monosodium citrate, anhydrous disodium hydrogen phosphate, potassium carbonate, anhydrous sodium dihydrogen phosphate, dibasic potassium sulfate, nicotinic acid, dilute hydrochloric acid, glacial acetic acid, monobasic potassium phosphate, phosphoric acid, adipic acid, sodium acetate, sodium dihydrogen phosphate dihydrate, tribasic sodium phosphate or mixtures thereof.
  • the pH agent is monosodium citrate.
  • Suitable acid sources are selected from the group comprising citric acid anhydrous, malic acid, maleic acid, tartaric acid, nicotinic acid, dilute hydrochloric acid, glacial acetic acid, ascorbic acid, acetylsalicylic acid, lactic acid, adipic acid, tartaric acid or mixtures thereof.
  • the acid source is citric acid anhydrous or malic acid or maleic acid or tartaric acid or mixtures thereof.
  • Suitable gas generating agents are selected from the group comprising sodium bicarbonate, sodium carbonate, calcium carbonate, aluminum potassium sulfate, anhydrous disodium hydrogen phosphate, potassium bicarbonate, anhydrous sodium dihydrogen phosphate, dibasic potassium sulfate, monobasic potassium phosphate, sodium carbonate, sodium glycine carbonate sodium citrate, sodium dihydrogen phosphate dihydrate, tribasic sodium phosphate or mixtures thereof.
  • the gas generating agent is sodium bicarbonate or sodium carbonate or calcium carbonate or mixtures thereof.
  • Suitable binders are selected from the group comprising polyvinylpyrrolidone, hydroxypropyl cellulose, sodium carboxymethyl cellulose, sodium carboxymethyl cellulose, polyethylene glycol, starch, pregelatinized starch, sodium alginate, hydroxypropyl methyl cellulose, carboxy methyl cellulose, methyl cellulose, guar gum, polymethacrylates, methacrylate polymers, polysaccharides, poloxamer, polyoxyethylene-alkyl ether, polydextrose, polyethylene oxide or mixtures thereof.
  • the binder is polyvinylpyrrolidone.
  • Sachet formulation may be achieved using the dry and wet granulation method, resulting in a simple and low-cost production method.
  • Brivaracetam is extremely prone to sticking and clumping due to the high adhesion during the preparation process, which poses major problems for the appearance and ingredient integrity of the final product.
  • Powder is granulated with povidone k30 in water solution and dried

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Neurosurgery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Preparation (AREA)

Abstract

The present invention relates to a sachet formulation comprising brivaracetam or a pharmaceutically acceptable salt thereof, and at least one sweetener, wherein the amount of brivaracetam is between 1.0% and 15.0% by weight in the total formulation. The present invention also relates to a simple, rapid, cost effective, time-saving and industrially convenient process of preparing the sachet formulation.

Description

A SACHET FORMULATION COMPRISING BRIVARACETAM
Field of the Invention
The present invention relates to a sachet formulation comprising brivaracetam or a pharmaceutically acceptable salt thereof, and at least one sweetener, wherein the amount of brivaracetam is between 1.0% and 15.0% by weight in the total formulation. The present invention also relates to a simple, rapid, cost effective, time-saving and industrially convenient process of preparing the sachet formulation.
Background of the Invention
The chemical name of brivaracetam is (2S)-2-[(4R)-2-oxo-4-propyl-pyrrolidin-l-yl] butanamide and its chemical structure is shown in the Formula I.
Figure imgf000002_0001
Formula I: Brivaracetam
Brivaracetam is a white to off-white crystalline powder. It is very soluble in water, buffer (pH 1.2, 4.5 and 7.4), ethanol, methanol, and glacial acetic acid. It is freely soluble in acetonitrile and acetone and soluble in toluene. It is very slightly soluble in n-hexane. Additionally, brivaracetam is an extremely viscous compound (adhesive capacity).
Brivaracetam is commercially approved in the form of tablets, oral solution and injection, in the USA under the brand name Briviact and are marketed by UCB Pharma.
Due to Brivaracetam's high adhesion properties, we wanted to create a simple and homogeneous sachet formulation by using a several excipients. In this way, the disadvantages of the active substance will be eliminated and patient compliance will be ensured by providing ease of use. Creating sachet formulations provides a more convenient and easier method for active substances that have such disadvantages. Brivaracetam has low melting point that result in some challenges in tablet coating such as pitting of the coating layer. Since the use of sachet formulation does not contain a coating, it has become advantageous in terms of physical stability as well as patient compliance.
Brivaracetam has a bitter taste so this is a problem that should be overcome. Therefore, it is needed to develop a sachet formulation which has a desired acceptable taste for patients.
A sachet formulation was developed to cater for patients who have difficulty swallowing tablets. The formulation was developed in order to create a solution of acceptable taste, consistency and stability.
Detailed Description of the Invention
The main object of the present invention provides a sachet formulation comprising brivaracetam having the desired stability, content uniformity and dissolution profile.
Another object of the present invention is to eliminate the problems related to active ingredients and to obtain a solution with pleasant taste when the sachet formulation dissolves in water.
Another object of the present invention is to provide a process of preparing a sachet formulation comprising brivaracetam which is simple and cost-effective process.
The sachet formulations with a good solubility result in a homogenous mixture. Taste is one of the most important parameters governing patient compliance for sachet formulations. It has been surprisingly found that using a sachet formulation comprising brivaracetam with an excipient that is a sweetener, we have achieved a formulation that provides the desired stability, dissolution profile and gives the tablet a good taste.
Also, concerning oral administration, sachet formulations have become an issue with increasing importance in terms of patient compliance as compared to conventional solid dosage forms such as capsules and tablets. This issue is more important in terms of patients having difficulty in swallowing. For these reasons, sachet formulations are one of the advantageous routes for administering the drugs comprising brivaracetam and provide a higher patient compliance along with recommended pharmaceutical therapies.
The term "sachet" will refer to an envelope or bag for a granulate, while "granulate" refers to particles, granulate or spheronised particles. The sachets require no special shaping or molding operations. Thus, the compaction, compression or tamping steps used with other dosage forms are not needed. According to one embodiment of the invention, a sachet formulation comprises brivaracetam or a pharmaceutically acceptable salt thereof, and at least one pharmaceutically acceptable sweetener, wherein the amount of brivaracetam is between 0.1% and 15.0% by weight in the total formulation.
Preferably, the amount of brivaracetam is between 1.0% and 7.0% by weight in the total formulation. Although, the high adhesion properties of brivaracetam, its use at this ratio provided the desired dissolution profile.
Suitable sweeteners are selected from the group comprising sucralose, sucrose, mannitol, saccharin, neotame, xylose, maltitol, aspartame, maltol, sorbitol, glucose, menthol, peppermint and xylitol or mixtures thereof.
According to an embodiment of the present invention, the sweetener is sucralose or sucrose or mannitol or saccharin or neotame or mixtures thereof. The sweeteners used also help to provide the stability of the sachet form.
According to an embodiment of the present invention, a sachet formulation further comprises at least one pharmaceutically acceptable excipient which is selected from the group comprising flavouring agent, pH agent, acid source, gas generating agent, binders or mixtures thereof.
Suitable flavouring agents are selected from the group comprising orange, lemon, cherry, menthol, peppermint, cinnamon, chocolate, vanillin, strawberry, grape, black currant, raspberry, banana, red fruits, wild berries or mixtures thereof.
According to an embodiment of the present invention, the flavouring agent is orange or lemon or mixtures thereof.
Suitable pH agents are selected from the group comprising monosodium citrate, anhydrous disodium hydrogen phosphate, potassium carbonate, anhydrous sodium dihydrogen phosphate, dibasic potassium sulfate, nicotinic acid, dilute hydrochloric acid, glacial acetic acid, monobasic potassium phosphate, phosphoric acid, adipic acid, sodium acetate, sodium dihydrogen phosphate dihydrate, tribasic sodium phosphate or mixtures thereof.
According to an embodiment of the present invention, the pH agent is monosodium citrate.
Suitable acid sources are selected from the group comprising citric acid anhydrous, malic acid, maleic acid, tartaric acid, nicotinic acid, dilute hydrochloric acid, glacial acetic acid, ascorbic acid, acetylsalicylic acid, lactic acid, adipic acid, tartaric acid or mixtures thereof.
According to this embodiment of the present invention, the acid source is citric acid anhydrous or malic acid or maleic acid or tartaric acid or mixtures thereof. Suitable gas generating agents are selected from the group comprising sodium bicarbonate, sodium carbonate, calcium carbonate, aluminum potassium sulfate, anhydrous disodium hydrogen phosphate, potassium bicarbonate, anhydrous sodium dihydrogen phosphate, dibasic potassium sulfate, monobasic potassium phosphate, sodium carbonate, sodium glycine carbonate sodium citrate, sodium dihydrogen phosphate dihydrate, tribasic sodium phosphate or mixtures thereof.
According to an embodiment of the present invention, the gas generating agent is sodium bicarbonate or sodium carbonate or calcium carbonate or mixtures thereof.
Suitable binders are selected from the group comprising polyvinylpyrrolidone, hydroxypropyl cellulose, sodium carboxymethyl cellulose, sodium carboxymethyl cellulose, polyethylene glycol, starch, pregelatinized starch, sodium alginate, hydroxypropyl methyl cellulose, carboxy methyl cellulose, methyl cellulose, guar gum, polymethacrylates, methacrylate polymers, polysaccharides, poloxamer, polyoxyethylene-alkyl ether, polydextrose, polyethylene oxide or mixtures thereof.
According to an embodiment of the present invention, the binder is polyvinylpyrrolidone.
Sachet formulation may be achieved using the dry and wet granulation method, resulting in a simple and low-cost production method. We have found that Brivaracetam is extremely prone to sticking and clumping due to the high adhesion during the preparation process, which poses major problems for the appearance and ingredient integrity of the final product. However, thanks to our formulation, we have created a sachet formulation suitable for both wet granulation and dry granulation production. When produced with these processes, there was no problem of content uniformity.
Example 1;
Figure imgf000005_0001
Method of Manufacture
1) Brivaracetam, orange, saccharin and sucrose, mannitol are mixed
2) Powder is filled into sachets. Example 2;
Figure imgf000006_0001
Method of Manufacture
1) Brivaracetam, sucralose, anhydrous citric acid, mannitol, neotame, monosodium sitrate is mixed
2) Powder is filled into sachets
Example 3;
Figure imgf000006_0002
Method of Manufacture
1) Brivaracetam, lemon, malic acid, sodium bicarbonate and sucrose are mixed
2) Mixture is filled into sachets. Example 4;
Figure imgf000007_0001
Method of Manufacture
1) Brivaracetam, mannitol, maleic acid, calcium carbonate, lemon flavor and sucrose, are mixed
2) Mixture is filled into sachets.
Example 5;
Figure imgf000007_0002
Method of Manufacture
1) Brivaracetam, anhydrous citric acid, tartaric acid, lemon, sucrose is mixed
2) Powder is granulated with povidone k30 in water solution and dried
3) Dried granules are sieved and sodium bicarbonate and sodium carbonate are added and mixed
4) Granules are filled into sachets

Claims

1. A sachet formulation comprises brivaracetam or a pharmaceutically acceptable salt thereof, and at least one pharmaceutically acceptable sweetener, wherein the amount of brivaracetam is between 0.1% and 15.0% by weight in the total formulation.
2. The sachet formulation according to claim 1, wherein sweeteners are selected from the group comprising sucralose, sucrose, mannitol, saccharin, neotame, xylose, maltitol, aspartame, maltol, sorbitol, glucose, menthol, peppermint and xylitol or mixtures thereof.
3. The sachet formulation according to claim 2, wherein the sweetener is sucralose or sucrose or mannitol or saccharin or neotame or mixtures thereof.
4. The sachet formulation according to claim 1, wherein a sachet formulation further comprises at least one pharmaceutically acceptable excipient which is selected from the group comprising flavouring agent, pH agent, acid source, gas generating agent, binders or mixtures thereof.
5. The sachet formulation according to claim 4, wherein flavouring agents are selected from the group comprising orange, lemon, cherry, menthol, peppermint, cinnamon, chocolate, vanillin, strawberry, grape, black currant, raspberry, banana, red fruits, wild berries or mixtures thereof.
6. The sachet formulation according to claim 5, wherein the flavouring agent is orange or lemon.
7. The sachet formulation according to claim 4, wherein pH agents are selected from the group comprising monosodium citrate, anhydrous disodium hydrogen phosphate, potassium carbonate, anhydrous sodium dihydrogen phosphate, dibasic potassium sulfate, nicotinic acid, dilute hydrochloric acid, glacial acetic acid, monobasic potassium phosphate, phosphoric acid, adipic acid, sodium acetate, sodium dihydrogen phosphate dihydrate, tribasic sodium phosphate or mixtures thereof.
8. The sachet formulation according to claim 7, wherein the pH agent is monosodium citrate.
9. The sachet formulation according to claim 4, wherein acid sources are selected from the group comprising citric acid anhydrous, malic acid, maleic acid, tartaric acid, nicotinic acid, dilute hydrochloric acid, glacial acetic acid, ascorbic acid, acetylsalicylic acid, lactic acid, adipic acid, tartaric acid or mixtures thereof.
10. The sachet formulation according to claim 9, wherein the acid source is citric acid anhydrous or malic acid or maleic acid or tartaric acid or mixtures thereof.
11. The sachet formulation according to claim 4, wherein gas generating agents are selected from the group comprising sodium bicarbonate, sodium carbonate, calcium carbonate, aluminum potassium sulfate, anhydrous disodium hydrogen phosphate, potassium bicarbonate, anhydrous sodium dihydrogen phosphate, dibasic potassium sulfate, monobasic potassium phosphate, sodium carbonate, sodium glycine carbonate sodium citrate, sodium dihydrogen phosphate dihydrate, tribasic sodium phosphate or mixtures thereof.
12. The sachet formulation according to claim 11, wherein the gas generating agent is sodium bicarbonate or sodium carbonate or calcium carbonate or mixtures thereof.
13. The sachet formulation according to claim 4, wherein binders are selected from the group comprising polyvinylpyrrolidone, hydroxypropyl cellulose, sodium carboxymethyl cellulose, sodium carboxymethyl cellulose, polyethylene glycol, starch, pregelatinized starch, sodium alginate, hydroxypropyl methyl cellulose, carboxy methyl cellulose, methyl cellulose, guar gum, polymethacrylates, methacrylate polymers, polysaccharides, poloxamer, polyoxyethylene-alkyl ether, polydextrose, polyethylene oxide or mixtures thereof.
14. The sachet formulation according to claim 13, wherein the binder is polyvinylpyrrolidone.
PCT/TR2024/051508 2023-12-13 2024-12-09 A sachet formulation comprising brivaracetam Pending WO2025128057A1 (en)

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TR2023/017170A TR2023017170A1 (en) 2023-12-13 2023-12-13 A sachet formulation containing brivaracetam
TR2023/017170 2023-12-13

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010006929A1 (en) * 2008-07-16 2010-01-21 Ucb Pharma, S.A. Pharmaceutical compositions comprising levetiracetam
US8460712B2 (en) * 2008-11-18 2013-06-11 Ucb Pharma, S.A. Prolonged release formulations comprising an 2-oxo-1-pyrrolidine derivate
US20220226368A1 (en) * 2019-10-02 2022-07-21 Intas Pharmaceuticals Ltd. Essentially sodium-free effervescent solid pharmaceutical compositions
WO2023157025A1 (en) * 2022-02-17 2023-08-24 Zenvision Pharma Llp Novel pharmaceutical or nutraceutical composition for treating or preventing epilepsy

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010006929A1 (en) * 2008-07-16 2010-01-21 Ucb Pharma, S.A. Pharmaceutical compositions comprising levetiracetam
US8460712B2 (en) * 2008-11-18 2013-06-11 Ucb Pharma, S.A. Prolonged release formulations comprising an 2-oxo-1-pyrrolidine derivate
US20220226368A1 (en) * 2019-10-02 2022-07-21 Intas Pharmaceuticals Ltd. Essentially sodium-free effervescent solid pharmaceutical compositions
WO2023157025A1 (en) * 2022-02-17 2023-08-24 Zenvision Pharma Llp Novel pharmaceutical or nutraceutical composition for treating or preventing epilepsy

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