WO2009098661A1 - Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability - Google Patents

Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability Download PDF

Info

Publication number
WO2009098661A1
WO2009098661A1 PCT/IB2009/050486 IB2009050486W WO2009098661A1 WO 2009098661 A1 WO2009098661 A1 WO 2009098661A1 IB 2009050486 W IB2009050486 W IB 2009050486W WO 2009098661 A1 WO2009098661 A1 WO 2009098661A1
Authority
WO
WIPO (PCT)
Prior art keywords
entacapone
composition
pharmaceutical composition
levodopa
carbidopa
Prior art date
Application number
PCT/IB2009/050486
Other languages
French (fr)
Inventor
Munish Talwar
Ritesh Kapoor
Manoj Mashalkar
Girish Kumar Jain
Original Assignee
Wockhardt Research Centre
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to BRPI0908052-0A priority Critical patent/BRPI0908052A2/en
Priority to NZ587168A priority patent/NZ587168A/en
Application filed by Wockhardt Research Centre filed Critical Wockhardt Research Centre
Priority to JP2010545596A priority patent/JP5466179B2/en
Priority to AT09709056T priority patent/ATE510537T1/en
Priority to AU2009211028A priority patent/AU2009211028B2/en
Priority to CA2714112A priority patent/CA2714112C/en
Priority to US12/865,745 priority patent/US8709485B2/en
Priority to EP09709056A priority patent/EP2252284B1/en
Priority to MX2010008711A priority patent/MX2010008711A/en
Priority to CN2009801045488A priority patent/CN101939003A/en
Priority to KR1020107019494A priority patent/KR101444979B1/en
Priority to RU2010136935/15A priority patent/RU2485947C2/en
Priority to PL09709056T priority patent/PL2252284T3/en
Publication of WO2009098661A1 publication Critical patent/WO2009098661A1/en
Priority to ZA2010/05615A priority patent/ZA201005615B/en
Priority to US14/194,685 priority patent/US9089485B2/en

Links

Classifications

    • 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
    • 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
    • A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
    • A61K31/19—Carboxylic acids, e.g. valproic acid
    • A61K31/195—Carboxylic acids, e.g. valproic acid having an amino group
    • 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
    • A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
    • A61K31/19—Carboxylic acids, e.g. valproic acid
    • A61K31/195—Carboxylic acids, e.g. valproic acid having an amino group
    • A61K31/197—Carboxylic acids, e.g. valproic acid having an amino group the amino and the carboxyl groups being attached to the same acyclic carbon chain, e.g. gamma-aminobutyric acid [GABA], beta-alanine, epsilon-aminocaproic acid or pantothenic acid
    • A61K31/198—Alpha-amino acids, e.g. alanine or edetic acid [EDTA]
    • 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
    • A61K31/275—Nitriles; Isonitriles
    • 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
    • A61K31/275—Nitriles; Isonitriles
    • A61K31/277—Nitriles; Isonitriles having a ring, e.g. verapamil
    • 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
    • A61K9/141—Intimate drug-carrier mixtures characterised by the carrier, e.g. ordered mixtures, adsorbates, solid solutions, eutectica, co-dried, co-solubilised, co-kneaded, co-milled, co-ground products, co-precipitates, co-evaporates, co-extrudates, co-melts; Drug nanoparticles with adsorbed surface modifiers
    • A61K9/145—Intimate drug-carrier mixtures characterised by the carrier, e.g. ordered mixtures, adsorbates, solid solutions, eutectica, co-dried, co-solubilised, co-kneaded, co-milled, co-ground products, co-precipitates, co-evaporates, co-extrudates, co-melts; Drug nanoparticles with adsorbed surface modifiers with organic compounds
    • 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
    • A61K9/2022—Organic macromolecular compounds
    • A61K9/205—Polysaccharides, e.g. alginate, gums; Cyclodextrin
    • A61K9/2054—Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose
    • 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
    • A61K9/2072—Pills, tablets, discs, rods characterised by shape, structure or size; Tablets with holes, special break lines or identification marks; Partially coated tablets; Disintegrating flat shaped forms
    • A61K9/2077—Tablets comprising drug-containing microparticles in a substantial amount of supporting matrix; Multiparticulate tablets
    • 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
    • A61P25/14—Drugs for disorders of the nervous system for treating abnormal movements, e.g. chorea, dyskinesia
    • A61P25/16—Anti-Parkinson drugs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
    • 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
    • A61K9/1629—Organic macromolecular compounds
    • A61K9/1635—Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
    • 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
    • A61K9/1629—Organic macromolecular compounds
    • A61K9/1652—Polysaccharides, e.g. alginate, cellulose derivatives; Cyclodextrin

Definitions

  • the present invention relates to single oral dose pharmaceutical compositions comprising a combination of entacapone, levodopa and carbidopa, or salts thereof along with one or more sugar alcohols, wherein the entacapone is co-micronized with one or more sugar alcohols.
  • the composition of the invention exhibits bioequivalence to commercially available entacapone, levodopa and carbidopa combination formulation marketed under the trade name Stalevo200 ® .
  • the invention also relates to processes for making such compositions. Background of the Invention
  • Entacapone an inhibitor of catechol-0-methyltransferase (COMT) is a nitro- catechol-structured compound used in the treatment of Parkinson's disease as an adjunct to levodopa/carbidopa therapy.
  • entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide having the following structural formula:
  • Carbidopa an inhibitor of aromatic amino acid decarboxylation
  • Entacapone is a class IV drug under the Biopharmaceutics Classification system and poses problems of low solubility, low dissolution rate and hence low bioavailability.
  • U.S. Patent No. 4,963,590 provides a pharmaceutical composition comprising entacapone and pharmaceutically acceptable carrier.
  • U.S. Patent Nos. 6,500,867 and 6,797,732 disclose oral solid tablet compositions comprising entacapone, levodopa and carbidopa, or pharmaceutically acceptable salts or hydrates thereof, and a pharmaceutically acceptable excipient. Both these patents disclose that when carbidopa, levodopa and entacapone are mixed together, it results in stability problems and desired therapeutic effect is not achieved. On the other hand, when a substantial portion of carbidopa is separated from levodopa and entacapone, the formulation exhibits better stability and desired therapeutic effect is also achieved.
  • U.S. Patent No. 6,599,530 provides an oral compacted composition in the form of a tablet which includes entacapone, nitecapone, or pharmaceutically acceptable salt of entacapone or nitecapone, and croscarmellose sodium in an amount of at least 6% by weight of the composition.
  • U.S. Application No. 20060222703 describes oral pharmaceutical compositions of entacapone, carbidopa and levodopa with microcrystalline cellulose and starch by simultaneous mixing of all the three actives.
  • the composition is prepared by compaction granulation.
  • the application describes the disadvantages associated with wet granulation technique which includes destabilization of composition and decreased dissolution of levodopa, carbidopa and entacapone due to use of water in the wet granulation method.
  • micronization or grinding of a substance in the presence of a surfactant or sugar can increase its solubility, these parameters are not always adequate.
  • bioavailability of micronized progesterone is not adequate and should be improved, for example by dispersion in carnauba wax.
  • PCT International Publication No.
  • a single oral dose pharmaceutical composition which includes a combination of entacapone, levodopa and carbidopa, or salts thereof along with one or more sugar alcohols, wherein the entacapone is co-micronized with one or more sugar alcohols.
  • Embodiments of the pharmaceutical composition may include one or more of the following features.
  • the pharmaceutical composition may further include one or more pharmaceutically acceptable excipients.
  • the pharmaceutically acceptable excipients may include one or more binders, fillers, lubricants, disintegrants, glidants, and the like.
  • a single oral dose pharmaceutical composition which includes a combination of entacapone, levodopa and carbidopa, or salts thereof along with one or more sugar alcohols; wherein the entacapone is co- micronized with one or more sugar alcohols; wherein the composition exhibits a dissolution profile such that at least 80% of the entacapone is released within 30 minutes; and wherein the release rate is measured in Apparatus 2 (USP, Dissolution, paddle, 50 rpm) using 900 ml of pH 5.5 phosphate buffer at 37 0 C + 0.5 0 C.
  • a process for preparing a pharmaceutical composition comprising: a) co-micronizing entacapone or salts thereof with one or more sugar alcohols, mixing and granulating with one or more pharmaceutically acceptable excipients; b) mixing and granulating carbidopa and levodopa with one or more pharmaceutically acceptable excipients; c) mixing the mixture of step (a) and step (b); and d) forming the mixture of step (c) into a pharmaceutical dosage form.
  • Embodiments of the pharmaceutical composition may include one or more of the following features.
  • the pharmaceutically acceptable excipients may include one or more binders, fillers, lubricants, disintegrants, glidants, and the like.
  • a single oral dose pharmaceutical composition which includes a combination of entacapone, levodopa and carbidopa, or salts thereof along with one or more sugar alcohols; wherein the entacapone is co- micronized with one or more sugar alcohols; and wherein the composition exhibits no significant difference in one or both of the rate and the extent of absorption of en- tacapone than that obtained by conventional entacapone, levodopa and carbidopa formulation marketed under the trade name Stalevo200 ® .
  • Embodiments of the pharmaceutical composition may include one or more of the following features.
  • the pharmaceutical composition may further include one or more pharmaceutically acceptable excipients.
  • the pharmaceutically acceptable excipients may include one or more binders, fillers, lubricants, disintegrants, glidants, and the like.
  • sugar alcohols like mannitol or sorbitol when used along with other known water insoluble drugs like fenofibrate, irbesartan, arip- iprazole, either as a physical mixture or in the form of a complex, does not result in any significant increase in solubility of the above mentioned poorly soluble drugs. It was also observed that it does not make any significant difference either in solubility or percent release of these poorly soluble drugs, whether these drugs are present alone in a formulation or along with sugar alcohols.
  • Stalevo 200 ® releases about 70% of entacapone in 30 minutes, whereas the pharmaceutical composition of the present invention releases about 85% of the entacapone in 30 minutes. This significant increase in percent release of entacapone leads to improved wettability, solubility, and hence increased percent release.
  • composition of the invention is bioequivalent to commercially available combination of entacapone, carbidopa, and levodopa (Stalevo 200 ® ).
  • a substantial portion of entacapone or a salt thereof may be separated from a mixture of levodopa and carbidopa or salts thereof; or a substantial portion of carbidopa or a salt thereof may be separated from a mixture of levodopa and entacapone or salts thereof; or the carbidopa, entacapone or levodopa may be present simultaneously in a mixture.
  • substantially all of entacapone/carbidopa/levodopa or a salt thereof herein refers to the amount of entacapone/carbidopa/levodopa or salts thereof that do not interfere with stability and or dissolution and therapeutic effect or bioavailability thereof of any of entacapone/carbidopa/levodopa in a single oral dose combination of entacapone, levodopa and carbidopa.
  • composition of the invention may exhibit pharmacokinetic profile characterized by maximum plasma concentration (C max ) from about 1.1 to about 2.0 ⁇ g/ml; time to reach maximum plasma concentration (T max ) from about 1.6 to about 3.5h; area under the concentration time curve (AUC 0 . t ) and (AUC ⁇ ) from about 1.80 to about 3.50 ⁇ g.h/ml.
  • C max maximum plasma concentration
  • T max time to reach maximum plasma concentration
  • AUC 0 . t area under the concentration time curve
  • AUC ⁇ area under the concentration time curve
  • AUC ⁇ values of composition of the invention may be between 0.70 and 1.30 and maximum plasma concentration (C 1112x ) values of composition of the invention may be between 0.60 and 1.40 as compared to that obtained by a Stalevo 200 ® .
  • Suitable sugar alcohols may include one or more of mannitol, maltitol, maltol, sorbitol, lactitol, xylitol, and the like.
  • the entacapone can be present in an amount relative to the sugar alcohol, such that a molar ratio between the entacapone and the sugar alcohol is from about 1:1 to 10:1.
  • the co-micronization can be carried out by suitable means known in the art, which include but not limited to one or more of nano mill, ball mill, attritor mill, vibratory mill, sand mill, bead mill, jet mill, ultrasonication, and the like.
  • the mean particle size of entacapone and sugar alcohol obtained after co- micronization may be less than 30 ⁇ .
  • the pharmaceutical composition can be prepared in two parts.
  • the first part may include co-micronizing entacapone with one or more suitable sugar alcohols, granulating with a binder solution and drying the granules.
  • the dried granules can be milled and mixed with other suitable pharmaceutically acceptable excipients.
  • the second part may include mixing levodopa and carbidopa with one or more suitable pharmaceutically acceptable excipients and granulating with a binder solution.
  • the granules can be dried.
  • the dried granules can be milled and mixed with one or more suitable pharmaceutically acceptable excipients.
  • the granules of entacapone and the granules of levodopa and carbidopa can be formulated into a suitable dosage form such as monolayered tablets, bilayered tablets, tablet in a tablet, a caplet, minitablets, capsules, tablet in a capsule, granules in a capsule, pellets, pellets in capsules, powder. Further, the powder or granules can be suspended to give a pharmaceutically acceptable oral suspension.
  • the pharmaceutical composition may include one or more pharmaceutically acceptable excipients.
  • the pharmaceutically acceptable excipients may include binders, fillers, lubricants, dis integrants, and glidants.
  • Suitable binders may include one or more of povidone, starch, stearic acid, gums, hy- droxypropylmethylcellulose, and the like.
  • Suitable fillers may include one or more of microcrystalline cellulose, lactose, mannitol, calcium phosphate, calcium sulfate, kaolin, dry starch, powdered sugar, and the like.
  • Suitable lubricants may include one or more of magnesium stearate, zinc stearate, calcium stearate, stearic acid, sodium stearyl fumarate, hydrogenated vegetable oil, and the like.
  • Suitable glidants may be one or more of colloidal silicon dioxide, talc orcornstarch, and the like.
  • Suitable disintegrants may be one or more of starch, croscarmellose sodium, crosspovidone, sodium starch glycolate, and the like.
  • Example 1 The composition of the batches is provided in table 1. The following formulations are representatives of the preferred compositions of the present invention. The preparation of example 1 is detailed below.
  • Table 1 Composition of Levodopa, carbidopa and entacapone
  • the pharmaceutical composition was prepared in two parts.
  • the first part included mixing entacapone with mannitol and co-micronizing the pre-mix through one or more cycles.
  • Starch, croscarmellose sodium, sodium starch glycollate were mixed in a rapid mix granulator, granulated with aqueous povidone solution and the granules were dried in a fluidized bed dryer.
  • the second part included mixing levodopa, carbidopa with starch, granulating with aqueous povidone solution and drying the granules in a fluidized bed dryer.
  • the dried granules of entacapone and levodopa, carbidopa were combined and mixed with sodium starch glycollate, mannitol, microcrystalline cellulose, and talc in a double cone blender and lubricated with magnesium stearate.
  • the lubricated granules were compressed into tablets using suitable tooling and coated with aqueous dispersion of opadry.
  • Table 2 Comparative dissolution data of Stalevo 200 ® vs composition of the present invention prepared as per example 1.
  • USP Type 2 Apparatus rpm 50
  • Table-3 Bioequivalence data of composition of the present invention against Stalevo 200 ® with respect to pharmacokinetic parameters.
  • Table-4 Bioequivalence data with respect to Test (composition of the present invention) to reference (Stalevo 200 ® ) Ratios (T/R ratios) at 90% Confidence Interval [54]

Landscapes

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

Abstract

The present invention relates to single oral dose pharmaceutical compositions comprising a combination of entacapone, levodopa and carbidopa, or salts thereof along with one or more sugar alcohols, wherein the entacapone is co-micronized with one or more sugar alcohols. The composition of the invention exhibits bioequivalence to commercially available entacapone, levodopa and carbidopa combination formulation marketed under the trade name Stalevo200®. The invention also relates to processes for making such compositions.

Description

Description
Title of Invention: PHARMACEUTICAL COMPOSITIONS OF ENTACAPONE, LEVODOPA AND CARBIDOPA WITH
IMPROVED BIOAVAILABILITY
Field of the Invention
[1] The present invention relates to single oral dose pharmaceutical compositions comprising a combination of entacapone, levodopa and carbidopa, or salts thereof along with one or more sugar alcohols, wherein the entacapone is co-micronized with one or more sugar alcohols. The composition of the invention exhibits bioequivalence to commercially available entacapone, levodopa and carbidopa combination formulation marketed under the trade name Stalevo200®. The invention also relates to processes for making such compositions. Background of the Invention
[2] Entacapone, an inhibitor of catechol-0-methyltransferase (COMT), is a nitro- catechol-structured compound used in the treatment of Parkinson's disease as an adjunct to levodopa/carbidopa therapy. Chemically, entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide having the following structural formula:
Figure imgf000002_0001
[4] Carbidopa, an inhibitor of aromatic amino acid decarboxylation, is a white, crystalline compound which is slightly soluble in water. Chemically, it is (-)-L-(α-hydrazino-(α-methyl-β-(3,4-dihydroxybenzene) propanoic acid monohydrate having structural formula the following structural formula:
Figure imgf000002_0002
[6] Levodopa, an aromatic amino acid, is a white, crystalline compound which is slightly soluble in water. Chemically, it is (-)-L-α-amino-β-(3,4-dihydroxybenzene) propanoic acid having the following structural formula:
[7]
Figure imgf000003_0001
[8] Entacapone is a class IV drug under the Biopharmaceutics Classification system and poses problems of low solubility, low dissolution rate and hence low bioavailability.
[9] U.S. Patent No. 4,963,590 provides a pharmaceutical composition comprising entacapone and pharmaceutically acceptable carrier.
[10] U.S. Patent Nos. 6,500,867 and 6,797,732 disclose oral solid tablet compositions comprising entacapone, levodopa and carbidopa, or pharmaceutically acceptable salts or hydrates thereof, and a pharmaceutically acceptable excipient. Both these patents disclose that when carbidopa, levodopa and entacapone are mixed together, it results in stability problems and desired therapeutic effect is not achieved. On the other hand, when a substantial portion of carbidopa is separated from levodopa and entacapone, the formulation exhibits better stability and desired therapeutic effect is also achieved.
[11] U.S. Patent No. 6,599,530 provides an oral compacted composition in the form of a tablet which includes entacapone, nitecapone, or pharmaceutically acceptable salt of entacapone or nitecapone, and croscarmellose sodium in an amount of at least 6% by weight of the composition.
[12] U.S. Application No. 20060222703 describes oral pharmaceutical compositions of entacapone, carbidopa and levodopa with microcrystalline cellulose and starch by simultaneous mixing of all the three actives. The composition is prepared by compaction granulation. The application describes the disadvantages associated with wet granulation technique which includes destabilization of composition and decreased dissolution of levodopa, carbidopa and entacapone due to use of water in the wet granulation method.
[13] Although it is known that micronization or grinding of a substance in the presence of a surfactant or sugar can increase its solubility, these parameters are not always adequate. For example, the bioavailability of micronized progesterone is not adequate and should be improved, for example by dispersion in carnauba wax. Such a technique is described in International Publication No. (PCT) WO 8902742. Thus, it appears that the properties of a substance treated by micronization or grinding, in particular its solubility and its bioavailability, are not predictable and contradictory results may be obtained.
[14] There are numerous prior art references which disclose the use of sugar alcohols like mannitol, sorbitol etc. as fillers in the formulation or as sensory cue agents, i.e. the agents which impart feeling of cooling in mouth in case of orally disintegrating tablets. For example, International Publication Nos. (PCT) WO 2007080601, 2007001086, 2006057912; European Patent Nos. 589981B1, 906089B1, 1109534B1; U.S. Patent No. 6,328,994, and US Application Nos. 20070196494, 20060240101, and 20060057199. Sugar alcohols like mannitol are employed in the most orally disintegrating formulations and not in the conventional immediate release formulations as sensory cue agents because the orally disintegrating tablets disintegrate in mouth instead of disintegrating in the gastrointestinal tract as in the case of conventional immediate release tablets. Summary of the Invention
[15] In one general aspect there is provided a single oral dose pharmaceutical composition which includes a combination of entacapone, levodopa and carbidopa, or salts thereof along with one or more sugar alcohols, wherein the entacapone is co-micronized with one or more sugar alcohols.
[16] Embodiments of the pharmaceutical composition may include one or more of the following features. For example, the pharmaceutical composition may further include one or more pharmaceutically acceptable excipients. The pharmaceutically acceptable excipients may include one or more binders, fillers, lubricants, disintegrants, glidants, and the like.
[17] In another general aspect there is provided a single oral dose pharmaceutical composition which includes a combination of entacapone, levodopa and carbidopa, or salts thereof along with one or more sugar alcohols; wherein the entacapone is co- micronized with one or more sugar alcohols; wherein the composition exhibits a dissolution profile such that at least 80% of the entacapone is released within 30 minutes; and wherein the release rate is measured in Apparatus 2 (USP, Dissolution, paddle, 50 rpm) using 900 ml of pH 5.5 phosphate buffer at 37 0C + 0.50C.
[18] In another general aspect there is provided a process for preparing a pharmaceutical composition, the process comprising: a) co-micronizing entacapone or salts thereof with one or more sugar alcohols, mixing and granulating with one or more pharmaceutically acceptable excipients; b) mixing and granulating carbidopa and levodopa with one or more pharmaceutically acceptable excipients; c) mixing the mixture of step (a) and step (b); and d) forming the mixture of step (c) into a pharmaceutical dosage form.
[19] Embodiments of the pharmaceutical composition may include one or more of the following features. For example, the pharmaceutically acceptable excipients may include one or more binders, fillers, lubricants, disintegrants, glidants, and the like.
[20] In another general aspect there is provided a single oral dose pharmaceutical composition which includes a combination of entacapone, levodopa and carbidopa, or salts thereof along with one or more sugar alcohols; wherein the entacapone is co- micronized with one or more sugar alcohols; and wherein the composition exhibits no significant difference in one or both of the rate and the extent of absorption of en- tacapone than that obtained by conventional entacapone, levodopa and carbidopa formulation marketed under the trade name Stalevo200®.
[21] Embodiments of the pharmaceutical composition may include one or more of the following features. For example, the pharmaceutical composition may further include one or more pharmaceutically acceptable excipients. The pharmaceutically acceptable excipients may include one or more binders, fillers, lubricants, disintegrants, glidants, and the like.
[22] The details of one or more embodiments of the inventions are set forth in the description below. Other features, objects and advantages of the inventions will be apparent from the description and claims. Detailed Description of the Invention
[23] The present inventors have noticed that sugar alcohols like mannitol or sorbitol when used along with other known water insoluble drugs like fenofibrate, irbesartan, arip- iprazole, either as a physical mixture or in the form of a complex, does not result in any significant increase in solubility of the above mentioned poorly soluble drugs. It was also observed that it does not make any significant difference either in solubility or percent release of these poorly soluble drugs, whether these drugs are present alone in a formulation or along with sugar alcohols.
[24] The present inventors while working on the combination formulation of entacapone, levodopa, carbidopa have surprisingly found that when entacapone is co-micronized with one or more sugar alcohols, it results in a significant increase in the solubility of entacapone and percent drug release of entacapone from the combination of entacapone, levodopa, and carbidopa formulation vis-a-vis the formulation wherein the entacapone is not co-micronized with a sugar alcohol.
[25] Stalevo 200® releases about 70% of entacapone in 30 minutes, whereas the pharmaceutical composition of the present invention releases about 85% of the entacapone in 30 minutes. This significant increase in percent release of entacapone leads to improved wettability, solubility, and hence increased percent release.
[26] The inventors have further noticed that the pharmaceutical composition of the invention is bioequivalent to commercially available combination of entacapone, carbidopa, and levodopa (Stalevo 200®).
[27] 'Bioequivalency' is established by a 90% Confidence Interval (CI) of between 0.80 and 1.25 for both maximum plasma concentration (Cmax) and area under the curve (AUC) under USFDA regulatory guidelines, or a 90% CI for AUC of between 0.80 to 1.25 and a 90% CI for Cmax of between 0.70 to 1.43 under the European EMEA regulatory guidelines.
[28] Bioequivalence studies were carried out between Stalevo 200® and the composition of the present invention. The study was monitored in terms of Cmax, AUC, and time to reach maximum plasma concentration (Tmax ) achieved with the test product (composition of the present invention) and the reference product (Stalevo 200®). Table 3 gives the bioequivalence data of composition of the present invention and Stalevo 200®. Table 4 provides the bioequivalence data with respect to Test to reference Ratios (T/R ratios) at 90% Confidence Interval.
[29] In the single oral dose pharmaceutical composition of the invention, a substantial portion of entacapone or a salt thereof may be separated from a mixture of levodopa and carbidopa or salts thereof; or a substantial portion of carbidopa or a salt thereof may be separated from a mixture of levodopa and entacapone or salts thereof; or the carbidopa, entacapone or levodopa may be present simultaneously in a mixture.
[30] The term 'substantial portion' of entacapone/carbidopa/levodopa or a salt thereof herein refers to the amount of entacapone/carbidopa/levodopa or salts thereof that do not interfere with stability and or dissolution and therapeutic effect or bioavailability thereof of any of entacapone/carbidopa/levodopa in a single oral dose combination of entacapone, levodopa and carbidopa.
[31] The composition of the invention may exhibit pharmacokinetic profile characterized by maximum plasma concentration (Cmax) from about 1.1 to about 2.0μg/ml; time to reach maximum plasma concentration (Tmax) from about 1.6 to about 3.5h; area under the concentration time curve (AUC0.t ) and (AUCΦ) from about 1.80 to about 3.50 μg.h/ml.
[32] At 90% confidence interval; area under the concentration time curve (AUC0.t and /or
AUCφ) values of composition of the invention may be between 0.70 and 1.30 and maximum plasma concentration (C1112x) values of composition of the invention may be between 0.60 and 1.40 as compared to that obtained by a Stalevo 200®.
[33] Suitable sugar alcohols may include one or more of mannitol, maltitol, maltol, sorbitol, lactitol, xylitol, and the like.
[34] In the pharmaceutical composition of the invention, the entacapone can be present in an amount relative to the sugar alcohol, such that a molar ratio between the entacapone and the sugar alcohol is from about 1:1 to 10:1.
[35] The co-micronization can be carried out by suitable means known in the art, which include but not limited to one or more of nano mill, ball mill, attritor mill, vibratory mill, sand mill, bead mill, jet mill, ultrasonication, and the like.
[36] The mean particle size of entacapone and sugar alcohol obtained after co- micronization may be less than 30μ.
[37] The pharmaceutical composition can be prepared in two parts. The first part may include co-micronizing entacapone with one or more suitable sugar alcohols, granulating with a binder solution and drying the granules. The dried granules can be milled and mixed with other suitable pharmaceutically acceptable excipients.
[38] The second part may include mixing levodopa and carbidopa with one or more suitable pharmaceutically acceptable excipients and granulating with a binder solution. The granules can be dried. The dried granules can be milled and mixed with one or more suitable pharmaceutically acceptable excipients.
[39] The granules of entacapone and the granules of levodopa and carbidopa can be formulated into a suitable dosage form such as monolayered tablets, bilayered tablets, tablet in a tablet, a caplet, minitablets, capsules, tablet in a capsule, granules in a capsule, pellets, pellets in capsules, powder. Further, the powder or granules can be suspended to give a pharmaceutically acceptable oral suspension.
[40] The pharmaceutical composition may include one or more pharmaceutically acceptable excipients. The pharmaceutically acceptable excipients may include binders, fillers, lubricants, dis integrants, and glidants.
[41] Suitable binders may include one or more of povidone, starch, stearic acid, gums, hy- droxypropylmethylcellulose, and the like.
[42] Suitable fillers may include one or more of microcrystalline cellulose, lactose, mannitol, calcium phosphate, calcium sulfate, kaolin, dry starch, powdered sugar, and the like.
[43] Suitable lubricants may include one or more of magnesium stearate, zinc stearate, calcium stearate, stearic acid, sodium stearyl fumarate, hydrogenated vegetable oil, and the like.
[44] Suitable glidants may be one or more of colloidal silicon dioxide, talc orcornstarch, and the like.
[45] Suitable disintegrants may be one or more of starch, croscarmellose sodium, crosspovidone, sodium starch glycolate, and the like.
[46] Example 1: The composition of the batches is provided in table 1. The following formulations are representatives of the preferred compositions of the present invention. The preparation of example 1 is detailed below.
[47] Table 1: Composition of Levodopa, carbidopa and entacapone
[Table 1] [Table ]
Figure imgf000008_0001
[48] Procedure: The pharmaceutical composition was prepared in two parts. The first part included mixing entacapone with mannitol and co-micronizing the pre-mix through one or more cycles. Starch, croscarmellose sodium, sodium starch glycollate were mixed in a rapid mix granulator, granulated with aqueous povidone solution and the granules were dried in a fluidized bed dryer. [49] The second part included mixing levodopa, carbidopa with starch, granulating with aqueous povidone solution and drying the granules in a fluidized bed dryer. The dried granules of entacapone and levodopa, carbidopa were combined and mixed with sodium starch glycollate, mannitol, microcrystalline cellulose, and talc in a double cone blender and lubricated with magnesium stearate. The lubricated granules were compressed into tablets using suitable tooling and coated with aqueous dispersion of opadry.
[50] Table 2: Comparative dissolution data of Stalevo 200® vs composition of the present invention prepared as per example 1. For determination of drug release rate, USP Type 2 Apparatus (rpm 50) was used wherein 1000 ml of pH 5.5 phosphate buffer at 37 0C ± 0.50C was used as a medium. [Table 2] [Table ]
Figure imgf000009_0001
[51] Table-3: Bioequivalence data of composition of the present invention against Stalevo 200® with respect to pharmacokinetic parameters. [52]
Figure imgf000009_0002
[53] Table-4: Bioequivalence data with respect to Test (composition of the present invention) to reference (Stalevo 200®) Ratios (T/R ratios) at 90% Confidence Interval [54]
Figure imgf000010_0001
[55] While the invention has been described in terms of its specific embodiments, certain modifications and equivalents will be apparent to those skilled in the art and are intended to be included within the scope of the invention.

Claims

Claims
[Claim 1] A single oral dose pharmaceutical composition comprising a combination of entacapone, levodopa and carbidopa, or salts thereof along with one or more sugar alcohols; wherein the entacapone is co- micronized with one or more sugar alcohols.
[Claim 2] The pharmaceutical composition of claim 1, wherein the entacapone and sugar alcohol are present in a molar ratio from about 1:1 to 10:1.
[Claim 3] The pharmaceutical composition of claim 1, wherein the sugar alcohols comprise one or more of mannitol, maltitol, maltol, sorbitol, lactitol and xylitol.
[Claim 4] The pharmaceutical composition of claim 1, wherein the co-micronized entacapone and sugar alcohol mixture has a mean particle size less than 30μ.
[Claim 5] The pharmaceutical composition of claim 1, wherein the composition comprises one or more of a tablet, a capsule, powder, a disc, a caplet, granules, pellets, granules in a capsule, minitablets, minitablets in a capsule, pellets in a capsule and a sachet.
[Claim 6] The pharmaceutical composition of claim 1 further comprises one or more pharmaceutically acceptable excipients.
[Claim 7] The composition of claim 1, wherein a substantial portion of entacapone or a salt thereof is separated from a mixture of levodopa and carbidopa or salts thereof.
[Claim 8] The composition of claim 1, wherein a substantial portion of carbidopa or a salt thereof is separated from a mixture of entacapone and levodopa or salts thereof.
[Claim 9] The composition of claim 1, wherein the composition exhibits a dissolution profile such that at least 80% of entacapone is released within 30 minutes; wherein the release rate is measured in Apparatus 2 (USP, Dissolution, paddle, 50 rpm) using 900 ml of pH 5.5 phosphate buffer at 37 0C + 0.50C.
[Claim 10] The composition of claim 1, wherein the composition is prepared by a) co-micronizing entacapone or salts thereof with one or more sugar alcohols, mixing and granulating with other pharmaceutically acceptable excipients; b) mixing, granulating carbidopa and levodopa with other pharmaceutically acceptable excipients; c) mixing the mixture of step (a) and step (b); and d) forming the mixture of step (c) into a pharmaceutical dosage form.
[Claim 11] A single oral dose pharmaceutical composition comprising a combination of entacapone, levodopa and carbidopa, or salts thereof along with one or more sugar alcohols; wherein the entacapone is co- micronized with one or more sugar alcohols; and wherein the composition exhibits no significant difference in one or both of the rate and the extent of absorption of the entacapone or a salt thereof than that obtained by entacapone, levodopa and carbidopa formulation marketed under the trade name Stalevo200®.
[Claim 12] The pharmaceutical composition of claim 11, wherein the composition exhibits a maximum plasma concentration (Cmax) from about 1.1 μg/ml to about 2.0μg/ml.
[Claim 13] The pharmaceutical composition of claim 11, wherein the composition exhibits a time to reach maximum plasma concentration (Tmax) from about 1.6h to about 3.5h.
[Claim 14] The pharmaceutical composition of claim 11, wherein the composition exhibits an area under the concentration time curve (AUC0.t ) and (AUC φ) from about 1.80 μg/ml to about 3.50 μg.h/ml.
[Claim 15] The pharmaceutical composition of claim 11, wherein the entacapone and sugar alcohol are present in a molar from about 1:1 to 10:1.
[Claim 16] The pharmaceutical composition of claim 11, wherein the sugar alcohols comprise one or more of mannitol, maltitol, maltol, sorbitol, lactitol and xylitol.
[Claim 17] The pharmaceutical composition of claim 11, wherein the co- micronized entacapone and sugar alcohol mixture has a mean particle size of less than 30μ.
[Claim 18] The pharmaceutical composition of claim 11, wherein the composition comprises one or more of a tablet, capsule, powder, a disc, a caplet, granules, pellets, granules in a capsule, minitablets, minitablets in a capsule, pellets in a capsule and a sachet.
[Claim 19] The pharmaceutical composition of claim 11 further comprises one or more pharmaceutically acceptable excipients.
PCT/IB2009/050486 2008-02-06 2009-02-06 Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability WO2009098661A1 (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
MX2010008711A MX2010008711A (en) 2008-02-06 2009-02-06 Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability.
EP09709056A EP2252284B1 (en) 2008-02-06 2009-02-06 Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability
JP2010545596A JP5466179B2 (en) 2008-02-06 2009-02-06 Entacapone, levodopa and carbidopa pharmaceutical compositions with improved bioavailability
NZ587168A NZ587168A (en) 2008-02-06 2009-02-06 Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability
AU2009211028A AU2009211028B2 (en) 2008-02-06 2009-02-06 Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability
CA2714112A CA2714112C (en) 2008-02-06 2009-02-06 Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability
CN2009801045488A CN101939003A (en) 2008-02-06 2009-02-06 Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability
BRPI0908052-0A BRPI0908052A2 (en) 2008-02-06 2009-02-06 Enhanced bioavailability entacapone, levodopa and carbidopa pharmaceutical compositions
AT09709056T ATE510537T1 (en) 2008-02-06 2009-02-06 PHARMACEUTICAL COMPOSITIONS OF ENTACAPONE, LEVODOPA AND CARBIDOPA WITH IMPROVED BIOAVAILABILITY
US12/865,745 US8709485B2 (en) 2008-02-06 2009-02-06 Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability
KR1020107019494A KR101444979B1 (en) 2008-02-06 2009-02-06 Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability
RU2010136935/15A RU2485947C2 (en) 2008-02-06 2009-02-06 Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability
PL09709056T PL2252284T3 (en) 2008-02-06 2009-02-06 Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability
ZA2010/05615A ZA201005615B (en) 2008-02-06 2010-08-05 Pharmaceutical compositions of entacapone,levodopa and carbidopa with improved bioavailability
US14/194,685 US9089485B2 (en) 2008-02-06 2014-03-01 Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IN263/MUM/2008 2008-02-06
IN262MU2008 2008-02-06
IN262/MUM/2008 2008-02-06
IN263MU2008 2008-02-06

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US12/865,745 A-371-Of-International US8709485B2 (en) 2008-02-06 2009-02-06 Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability
US14/194,685 Continuation US9089485B2 (en) 2008-02-06 2014-03-01 Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability

Publications (1)

Publication Number Publication Date
WO2009098661A1 true WO2009098661A1 (en) 2009-08-13

Family

ID=40626854

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/050486 WO2009098661A1 (en) 2008-02-06 2009-02-06 Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability

Country Status (16)

Country Link
US (2) US8709485B2 (en)
EP (1) EP2252284B1 (en)
JP (1) JP5466179B2 (en)
KR (1) KR101444979B1 (en)
CN (1) CN101939003A (en)
AT (1) ATE510537T1 (en)
AU (1) AU2009211028B2 (en)
BR (1) BRPI0908052A2 (en)
CA (1) CA2714112C (en)
MX (1) MX2010008711A (en)
NZ (1) NZ587168A (en)
PL (1) PL2252284T3 (en)
PT (1) PT2252284E (en)
RU (1) RU2485947C2 (en)
WO (1) WO2009098661A1 (en)
ZA (1) ZA201005615B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010020969A1 (en) * 2008-08-22 2010-02-25 Wockhardt Research Centre An extended release pharmaceutical composition of entacapone or salts thereof
WO2010020970A1 (en) * 2008-08-22 2010-02-25 Wockhardt Research Centre Single unit oral dose pharmaceutical composition comprising levodopa, carbidopa and entacapone or salts thereof
WO2010027340A1 (en) * 2008-09-03 2010-03-11 Dr. F. Frik Ilac Sanayi Ve Ticaret Anonim Sirketi Pharmaceutical compositions composing entakapon, levodopa and karbidoba
WO2011075912A1 (en) * 2009-12-25 2011-06-30 台湾东洋药品工业股份有限公司 Pharmaceutical composition for treating parkinson's disease and preparation method thereof
WO2012145893A1 (en) 2011-04-26 2012-11-01 因华生技制药股份有限公司 A composition of entacopone
EP2656856A3 (en) * 2012-04-25 2014-07-09 Ali Raif Ilaç Sanayi ve Ticaret Anonim Sirketi Tablet formulation comprising levodopa, carbidopa, entacapone providing extended release
WO2016036308A1 (en) 2014-09-04 2016-03-10 Lobsor Pharmaceuticals Aktiebolag Pharmaceutical compositions comprising levodopa, a dopamine decarboxylase inhibitor and a comt inhibitor and method of administration thereof
WO2017039525A1 (en) * 2015-09-04 2017-03-09 Lobsor Pharmaceuticals Aktiebolag Method of treating a dopamine related disorder in a subject by administering levodopa, in combination with a dopamine decarboxylase inhibitor and a catechol-o-methyltransferase inhibitor
WO2018034626A1 (en) * 2016-08-18 2018-02-22 İlko İlaç Sanayi Ve Ticaret Anonim Şirketi Antiparkinson tablet formulation with improved dissolution profile
WO2019182506A1 (en) 2018-03-23 2019-09-26 Lobsor Pharmaceuticals Aktiebolag Continuous administration of pharmaceutical composition for treatment of neurodegenerative disorders
US11975104B2 (en) 2016-07-11 2024-05-07 Contera Pharma A/S Pulsatile drug delivery system for treating morning akinesia

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9642810B2 (en) 2013-03-15 2017-05-09 Mylan Inc. Formulation containing carbidopa, levodopa, and entacapone
MX2016011837A (en) * 2014-03-13 2017-04-27 Neuroderm Ltd Dopa decarboxylase inhibitor compositions.
KR102537018B1 (en) * 2014-10-21 2023-05-30 애브비 인코포레이티드 Carbidopa and l-dopa prodrugs and their use to treat parkinson's disease
CN106880607A (en) * 2015-12-15 2017-06-23 北大方正集团有限公司 A kind of oral disnitegration tablet containing Rui Gefeini and preparation method thereof
CN106236720A (en) * 2016-08-29 2016-12-21 海南通用康力制药有限公司 A kind of pharmaceutical composition of entacapone and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001001984A1 (en) * 1999-06-30 2001-01-11 Orion Corporation Levodopa / carbidopa / entacapone pharmaceutical preparation
WO2006131591A2 (en) * 2005-06-08 2006-12-14 Orion Corporation An entacapone-containing oral dosage form
WO2007138086A1 (en) * 2006-05-31 2007-12-06 Solvay Pharmaceuticals Gmbh Long term 24 hour intestinal administration of levodopa/carbidopa

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2642486B2 (en) * 1989-08-04 1997-08-20 田辺製薬株式会社 Ultrafine particle method for poorly soluble drugs
EP0437098A3 (en) * 1990-01-11 1991-09-18 Warner-Lambert Company Compressed confectionery tablets with at least two phases and sequential flavour delivery system
US6599530B2 (en) * 1998-09-14 2003-07-29 Orion Corporation Oral compacted composition comprising catechol derivatives

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001001984A1 (en) * 1999-06-30 2001-01-11 Orion Corporation Levodopa / carbidopa / entacapone pharmaceutical preparation
WO2006131591A2 (en) * 2005-06-08 2006-12-14 Orion Corporation An entacapone-containing oral dosage form
WO2007138086A1 (en) * 2006-05-31 2007-12-06 Solvay Pharmaceuticals Gmbh Long term 24 hour intestinal administration of levodopa/carbidopa

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010020970A1 (en) * 2008-08-22 2010-02-25 Wockhardt Research Centre Single unit oral dose pharmaceutical composition comprising levodopa, carbidopa and entacapone or salts thereof
WO2010020969A1 (en) * 2008-08-22 2010-02-25 Wockhardt Research Centre An extended release pharmaceutical composition of entacapone or salts thereof
US8895065B2 (en) 2008-08-22 2014-11-25 Wockhardt Ltd. Single unit oral dose pharmaceutical composition comprising levodopa, carbidopa and entacapone or salts thereof
AU2009283813B2 (en) * 2008-08-22 2015-02-19 Wockhardt Research Centre An extended release pharmaceutical composition of entacapone or salts thereof
US9289392B2 (en) 2008-08-22 2016-03-22 Wockhardt Ltd. Extended release pharmaceutical composition of entacapone or salts thereof
WO2010027340A1 (en) * 2008-09-03 2010-03-11 Dr. F. Frik Ilac Sanayi Ve Ticaret Anonim Sirketi Pharmaceutical compositions composing entakapon, levodopa and karbidoba
WO2011075912A1 (en) * 2009-12-25 2011-06-30 台湾东洋药品工业股份有限公司 Pharmaceutical composition for treating parkinson's disease and preparation method thereof
CN102781440A (en) * 2009-12-25 2012-11-14 因华生技制药股份有限公司 Pharmaceutical composition for treating parkinson's disease and preparation method thereof
US9750702B2 (en) 2009-12-25 2017-09-05 Innopharmax, Inc. Pharmaceutical composition for treating parkinson's disease and preparation method thereof
CN103476406B (en) * 2011-04-26 2017-05-24 因华生技制药股份有限公司 A composition of entacopone
WO2012145893A1 (en) 2011-04-26 2012-11-01 因华生技制药股份有限公司 A composition of entacopone
CN103476406A (en) * 2011-04-26 2013-12-25 因华生技制药股份有限公司 A composition of entacopone
EP2656856A3 (en) * 2012-04-25 2014-07-09 Ali Raif Ilaç Sanayi ve Ticaret Anonim Sirketi Tablet formulation comprising levodopa, carbidopa, entacapone providing extended release
AU2015312430B2 (en) * 2014-09-04 2020-06-25 Lobsor Pharmaceuticals Aktiebolag Pharmaceutical compositions comprising levodopa, a dopamine decarboxylase inhibitor and a COMT inhibitor and method of administration thereof
EP3782617A1 (en) 2014-09-04 2021-02-24 LobSor Pharmaceuticals Aktiebolag Pharmaceutical gel compositions comprising levodopa, carbidopa and entacapon
AU2022200291B2 (en) * 2014-09-04 2024-01-25 Lobsor Pharmaceuticals Aktiebolag Pharmaceutical compositions comprising levodopa, a dopamine decarboxylase inhibitor and a COMT inhibitor and method of administration thereof
US10071069B2 (en) 2014-09-04 2018-09-11 Lobsor Pharmaceuticals Aktiebolag Pharmaceutical compositions comprising levodopa, a dopamine decarboxylase inhibitor and a COMT inhibitor and method of administration thereof
US10786472B2 (en) 2014-09-04 2020-09-29 Lobsor Pharmaceuticals Aktiebolag Pharmaceutical compositions comprising levodopa, a dopamine decarboxylase inhibitor and a COMT inhibitor and method of administration thereof
US11413262B2 (en) 2014-09-04 2022-08-16 Intrance International Ab Pharmaceutical compositions comprising levodopa, a dopamine decarboxylase inhibitor and a COMT inhibitor and method of administration thereof
WO2016036308A1 (en) 2014-09-04 2016-03-10 Lobsor Pharmaceuticals Aktiebolag Pharmaceutical compositions comprising levodopa, a dopamine decarboxylase inhibitor and a comt inhibitor and method of administration thereof
EP4356907A1 (en) 2014-09-04 2024-04-24 LobSor Pharmaceuticals Aktiebolag Pharmaceutical compositions comprising levodopa, a dopamine decarboxylase inhibitor and a comtinhibitor and method of administration thereof
AU2020239682B2 (en) * 2014-09-04 2021-12-23 Lobsor Pharmaceuticals Aktiebolag Pharmaceutical compositions comprising levodopa, a dopamine decarboxylase inhibitor and a COMT inhibitor and method of administration thereof
WO2017039525A1 (en) * 2015-09-04 2017-03-09 Lobsor Pharmaceuticals Aktiebolag Method of treating a dopamine related disorder in a subject by administering levodopa, in combination with a dopamine decarboxylase inhibitor and a catechol-o-methyltransferase inhibitor
US10555922B2 (en) 2015-09-04 2020-02-11 Lobsor Pharmaceuticals Aktiebolag Method of treating a dopamine related disorder in a subject by administering levodopa, in combination with a dopamine decarboxylase inhibitor and a catechol-o-methyltransferase inhibitor
US11975104B2 (en) 2016-07-11 2024-05-07 Contera Pharma A/S Pulsatile drug delivery system for treating morning akinesia
EA036784B1 (en) * 2016-08-18 2020-12-21 Илько Илач Санайи Ве Тиджарет Аноним Ширкети Antiparkinson tablet formulation with improved dissolution profile
WO2018034626A1 (en) * 2016-08-18 2018-02-22 İlko İlaç Sanayi Ve Ticaret Anonim Şirketi Antiparkinson tablet formulation with improved dissolution profile
WO2019182506A1 (en) 2018-03-23 2019-09-26 Lobsor Pharmaceuticals Aktiebolag Continuous administration of pharmaceutical composition for treatment of neurodegenerative disorders
US11547689B2 (en) 2018-03-23 2023-01-10 Intrance International Ab Continuous administration of pharmaceutical composition for treatment of neurodegenerative disorders

Also Published As

Publication number Publication date
KR101444979B1 (en) 2014-10-07
RU2010136935A (en) 2012-03-20
ZA201005615B (en) 2011-10-26
BRPI0908052A2 (en) 2015-08-11
MX2010008711A (en) 2011-05-03
EP2252284B1 (en) 2011-05-25
US9089485B2 (en) 2015-07-28
NZ587168A (en) 2011-06-30
PL2252284T3 (en) 2011-10-31
PT2252284E (en) 2011-08-23
US20110091558A1 (en) 2011-04-21
US20140187644A1 (en) 2014-07-03
CN101939003A (en) 2011-01-05
RU2485947C2 (en) 2013-06-27
JP5466179B2 (en) 2014-04-09
KR20100117097A (en) 2010-11-02
ATE510537T1 (en) 2011-06-15
AU2009211028A1 (en) 2009-08-13
US8709485B2 (en) 2014-04-29
EP2252284A1 (en) 2010-11-24
CA2714112A1 (en) 2009-08-13
AU2009211028B2 (en) 2013-12-05
CA2714112C (en) 2015-08-11
JP2011511061A (en) 2011-04-07

Similar Documents

Publication Publication Date Title
CA2714112C (en) Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability
JP4885896B2 (en) Levodopa / Carbidopa / Entacapone pharmaceutical formulation
EP2104424A2 (en) Pharmaceutical compositions comprising entacapone, levodopa, and carbidopa
WO2009084041A2 (en) Pharmaceutical compositions of dexibuprofen
CA2714113C (en) Pharmaceutical compositions of entacapone co-micronized with sugar alcohols
ES2367193T3 (en) PHARMACEUTICAL COMPOSITIONS OF ENTACAPONA, LEVODOPA AND CARBIDOPA WITH IMPROVED BIODISPONIBILITY.
US20160022661A1 (en) Dosage Form Comprising Crizotinib
US8852635B2 (en) Pharmaceutical compositions of fenofibrate
US9180110B2 (en) Pharmaceutical compositions of fenofibrate
WO2014152207A1 (en) Hot melt granulation formulations of poorly water-soluble active agents
WO2019030773A1 (en) Low-dose diclofenac compositions

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200980104548.8

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09709056

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 587168

Country of ref document: NZ

WWE Wipo information: entry into national phase

Ref document number: 2714112

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 2010545596

Country of ref document: JP

Ref document number: MX/A/2010/008711

Country of ref document: MX

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2009709056

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2009211028

Country of ref document: AU

Date of ref document: 20090206

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 20107019494

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2010136935

Country of ref document: RU

WWE Wipo information: entry into national phase

Ref document number: 12865745

Country of ref document: US

ENP Entry into the national phase

Ref document number: PI0908052

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20100806