WO2023157865A1 - ロチゴチン含有貼付剤 - Google Patents
ロチゴチン含有貼付剤 Download PDFInfo
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- WO2023157865A1 WO2023157865A1 PCT/JP2023/005160 JP2023005160W WO2023157865A1 WO 2023157865 A1 WO2023157865 A1 WO 2023157865A1 JP 2023005160 W JP2023005160 W JP 2023005160W WO 2023157865 A1 WO2023157865 A1 WO 2023157865A1
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- WIPO (PCT)
- Prior art keywords
- rotigotine
- adhesive layer
- mass
- pharmaceutically acceptable
- pressure
- Prior art date
- 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.)
- Ceased
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Classifications
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- 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
- A61K31/38—Heterocyclic compounds having sulfur as a ring hetero atom
- A61K31/381—Heterocyclic compounds having sulfur as a ring hetero atom having five-membered rings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/08—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
- A61K47/14—Esters of carboxylic acids, e.g. fatty acid monoglycerides, medium-chain triglycerides, parabens or PEG fatty acid esters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/20—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing sulfur, e.g. dimethyl sulfoxide [DMSO], docusate, sodium lauryl sulfate or aminosulfonic acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/32—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. carbomers, poly(meth)acrylates, or polyvinyl pyrrolidone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/34—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyesters, polyamino acids, polysiloxanes, polyphosphazines, copolymers of polyalkylene glycol or poloxamers
-
- 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
- A61K9/70—Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
-
- 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
- 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
Definitions
- the present invention relates to a patch containing rotigotine, and more particularly to a patch containing rotigotine and/or a pharmaceutically acceptable salt thereof.
- Rotigotine is the international nonproprietary name for the compound ( ⁇ )-5,6,7,8-tetrahydro-6-[propyl-[2-(2-thienyl)ethyl]-amino]1-naphthalenol, Forms I and II It is described in Japanese National Publication of International Patent Application No. 2011-504902 (Patent Document 1) that there is a crystal polymorph of the type.
- Rotigotine is a D1/D2/D3 dopamine receptor agonist and is primarily used to treat symptoms of Parkinson's disease and restless legs syndrome.
- Patent Document 2 discloses a backing layer that is inert to matrix components and a self-adhesive matrix layer containing rotigotine, wherein the matrix has a solubility of rotigotine.
- Transdermal therapeutic systems based on 5% (w/w) or greater water-insoluble acrylate- or silicone-based polymer adhesives are described.
- JP 2015-503541 A includes a backing layer impermeable to an active substance, a pressure-sensitive adhesive, a drug, and a matrix layer containing particles of crosslinked polyvinylpyrrolidone.
- a transdermal therapeutic system is described wherein rotigotine is described as the drug and a silicone polymer as the pressure sensitive adhesive.
- Patent Document 4 discloses a support, a rubber-based adhesive base containing a rosin-based resin and a rubber-based adhesive component, and rotigotine or a pharmaceutically acceptable salt thereof.
- Patent Document 5 describes a support, a rubber adhesive base, rotigotine or its A transdermal patch containing a salt and a drug-containing layer containing an agent for suppressing the formation of degradation products of rotigotine is disclosed.
- Patent Document 6 discloses a percutaneous absorption preparation in which rotigotine and an antioxidant such as butylhydroxytoluene are mixed at a specific weight ratio for the purpose of preventing rotigotine crystal precipitation. is described.
- the patch containing the antioxidant for example, in Retable No. 2017-073516 (Patent Document 7) and Retable No. 2018-198925 (Patent Document 8), fentanyl and butorphanol are used as drugs. It is described that the pressure-sensitive adhesive layer of the containing patch contains an antioxidant having a sulfur atom in its molecule.
- the present invention has been made in view of the above problems, and aims to provide a rotigotine-containing patch that is particularly excellent in the stability of rotigotine and/or a pharmaceutically acceptable salt thereof over time.
- a rotigotine-containing patch containing at least one selected from the group (herein sometimes referred to as “rotigotine and/or a pharmaceutically acceptable salt thereof”) and an adhesive base, wherein the adhesive In the agent layer, at least one selected from the group consisting of thioglycolic acid and pharmaceutically acceptable salts of thioglycolic acid (herein sometimes referred to as "thioglycolic acid and/or its pharmaceutically acceptable
- thioglycolic acid and/or its pharmaceutically acceptable By further containing rotigotine, the generation of rotigotine degradation products can be suppressed at a high level even during storage under severe conditions, and rotigotine and/or its pharmaceutically acceptable salts are stable over time.
- the present inventors have found that a rotigotine-containing patch having particularly excellent properties can be obtained, and have completed the present invention.
- a rotigotine-containing patch comprising a support layer and an adhesive layer, wherein the adhesive layer contains at least one selected from the group consisting of rotigotine and a pharmaceutically acceptable salt of rotigotine, A rotigotine-containing patch, wherein the adhesive layer further contains at least one selected from the group consisting of thioglycolic acid and pharmaceutically acceptable salts of thioglycolic acid, and an adhesive base.
- the content of at least one selected from the group consisting of thioglycolic acid and pharmaceutically acceptable salts of thioglycolic acid in the adhesive layer is, in terms of sodium thioglycolate, of the adhesive layer.
- the adhesive base is at least one selected from the group consisting of a rubber-based adhesive base, an acrylic adhesive base, and a silicone-based adhesive base;
- the content of at least one selected from the group consisting of rotigotine and rotigotine pharmaceutically acceptable salts in the adhesive layer is, in terms of rotigotine free form, relative to the total mass of the adhesive layer.
- a rotigotine-containing patch that is particularly excellent in the stability of rotigotine and/or a pharmaceutically acceptable salt thereof over time.
- the rotigotine-containing patch of the present invention is A rotigotine-containing patch comprising a support layer and an adhesive layer, wherein the adhesive layer contains at least one selected from the group consisting of rotigotine and a pharmaceutically acceptable salt of rotigotine, The adhesive layer further contains at least one selected from the group consisting of thioglycolic acid and pharmaceutically acceptable salts of thioglycolic acid, and an adhesive base.
- the rotigotine-containing patch of the present invention comprises a support layer and an adhesive layer.
- the support layer is not particularly limited as long as it can support the pressure-sensitive adhesive layer described later, and a known support layer for patches can be appropriately employed.
- Materials for the support layer according to the present invention include, for example, polyolefins such as polyethylene and polypropylene; ethylene-vinyl acetate copolymer, vinyl acetate-vinyl chloride copolymer, polyvinyl chloride, etc.; polyamides such as nylon; polyethylene terephthalate. polyesters such as (PET), polybutylene terephthalate, and polyethylene naphthalate; cellulose derivatives; synthetic resins such as polyurethane; and metals such as aluminum.
- polyester and polyethylene terephthalate are preferable from the viewpoint of drug non-adsorption and drug non-permeability.
- the form of the support layer include films; sheets such as sheets, sheet-like porous bodies and sheet-like foams; fabrics such as woven fabrics, knitted fabrics and non-woven fabrics; foils; be done.
- the thickness of the support layer is not particularly limited, it is preferably in the range of 5 to 1000 ⁇ m from the viewpoint of ease of work in applying the patch and ease of production.
- the rotigotine-containing patch of the present invention may further comprise a release liner on the surface of the pressure-sensitive adhesive layer opposite to the support layer.
- release liners include polyolefins such as polyethylene and polypropylene; ethylene-vinyl acetate copolymer, vinyl acetate-vinyl chloride copolymer, polyvinyl chloride, etc.; polyamides such as nylon; polyesters such as polyethylene terephthalate; cellulose derivatives; and films and sheets made of materials such as aluminum and paper, and laminates thereof.
- release liners have been subjected to a release treatment such as silicone-containing compound coating or fluorine-containing compound coating on the side that contacts the pressure-sensitive adhesive layer so that they can be easily peeled off from the pressure-sensitive adhesive layer. is preferred.
- the pressure-sensitive adhesive layer according to the present invention contains at least one drug (rotigotine and/or a pharmaceutically acceptable salt thereof) selected from the group consisting of rotigotine and its pharmaceutically acceptable salts.
- the form of rotigotine contained in the pressure-sensitive adhesive layer may be a free form or a pharmaceutically acceptable salt thereof.
- Pharmaceutically acceptable salts of rotigotine in the formulation may be desalted into a free form, and one of them or a mixture of two or more of them may be used.
- Pharmaceutically acceptable salts of rotigotine include acid addition salts, and examples of acids of the acid addition salts include hydrochloric acid, sulfuric acid, nitric acid, acetic acid, phosphoric acid, phosphorous acid, hydrobromic acid, Maleic acid, malic acid, ascorbic acid, tartaric acid, lauric acid, stearic acid, palmitic acid, oleic acid, myristic acid, laurylsulfuric acid, linolenic acid and fumaric acid.
- the acid addition salt may be one or two or more of these acid addition salts.
- the pressure-sensitive adhesive layer according to the present invention preferably contains rotigotine in the free form.
- the content of rotigotine and/or a pharmaceutically acceptable salt thereof contained in the adhesive layer is preferably 5 to 15% by mass with respect to the total mass of the pressure-sensitive adhesive layer, in terms of rotigotine free form, and 6 to It is more preferably 12% by mass, even more preferably 7 to 10% by mass, even more preferably 8 to 9% by mass.
- the content of rotigotine and/or a pharmaceutically acceptable salt thereof is less than the lower limit, the skin permeability of rotigotine and/or a pharmaceutically acceptable salt thereof tends to decrease, while the upper limit If it exceeds , rotigotine crystals tend to precipitate and the adhesive strength of the adhesive layer tends to decrease.
- rotigotine decomposition products examples include, but are not limited to, 7,8-dihydronaphthol, despropylrotigotine (DespropylRTN), and the like.
- the pressure-sensitive adhesive layer according to the present invention is at least one selected from the group consisting of thioglycolic acid and pharmaceutically acceptable salts of thioglycolic acid (thioglycolic acid and/or pharmaceutically acceptable salts thereof).
- the form of thioglycolic acid contained in the pressure-sensitive adhesive layer may be a free form (free form) or a pharmaceutically acceptable salt thereof.
- the pharmaceutically acceptable salt of thioglycolic acid may be desalted into a free form in the formulation prepared, and one of these may be a mixture of two or more.
- Pharmaceutically acceptable salts of thioglycolic acid include alkali metal salts, alkaline earth metal salts, salts with ammonia, alkylamines, alkanolamines, more specifically, for example, sodium salts, potassium salts, calcium salts, magnesium salts, ammonium salts, dimethylamine salts, diethylamine salts, trimethylamine salts, triethylamine salts, monoethanolamine salts, diethanolamine salts, diisopropanolamine salts, triethanolamine salts, triisopropanolamine salts.
- the pharmaceutically acceptable salt of thioglycolic acid may be one or more of these salts.
- the pressure-sensitive adhesive layer according to the present invention preferably contains at least one selected from the group consisting of thioglycolic acid and alkali metal salts (more preferably sodium salts) of thioglycolic acid. .
- the content of thioglycolic acid and/or a pharmaceutically acceptable salt thereof contained in the pressure-sensitive adhesive layer is 0.03 to 3 masses with respect to the total mass of the pressure-sensitive adhesive layer in terms of sodium thioglycolate %, more preferably 0.05 to 3% by mass, even more preferably 0.1 to 3% by mass, even more preferably 0.15 to 3% by mass, 0.25 to 3% by weight, particularly preferably 0.5 to 3% by weight.
- the content of thioglycolic acid and/or a pharmaceutically acceptable salt thereof is less than the above lower limit, the stability of rotigotine and/or a pharmaceutically acceptable salt thereof over time tends to be insufficient.
- the above upper limit is exceeded, the adhesive strength of the adhesive layer tends to decrease.
- the content of thioglycolic acid and/or a pharmaceutically acceptable salt thereof contained in the adhesive layer in terms of sodium thioglycolate is It is preferably 0.002 to 0.6 parts by mass, more preferably 0.01 to 0.6 parts by mass, relative to 1 part by mass of the content of the rotigotine free form of the salt that is acceptable for It is preferably 0.015 to 0.6 parts by mass, even more preferably 0.03 to 0.35 parts by mass, and particularly preferably 0.05 to 0.35 parts by mass. .
- the adhesive layer according to the present invention also contains an adhesive base.
- the adhesive base is not particularly limited, and includes a rubber-based adhesive base, an acrylic adhesive base, and a silicone-based adhesive base. Although it may be, it is preferably at least one selected from the group consisting of a rubber-based adhesive base, an acrylic adhesive base having no carboxy group, and a silicone-based adhesive base. It is more preferable to contain at least
- the content of the pressure-sensitive adhesive base (the total content thereof when there are two or more types, the same shall apply hereinafter) is 1 to 1 with respect to the total mass of the pressure-sensitive adhesive layer. It is preferably 90% by mass, more preferably 5 to 90% by mass, even more preferably 10 to 90% by mass, even more preferably 10 to 80% by mass, and 20 to 80% by mass. % is particularly preferred.
- Rubber adhesive base examples include styrene-based thermoplastic elastomers, polyisobutylene, natural rubber, alkyl vinyl ether (co)polymers, polyisoprene, and polybutadiene. Although two or more types may be used in combination, styrene-based thermoplastic elastomers are particularly preferred among these.
- the styrene-based thermoplastic elastomer is a styrene-based elastomer that exhibits thermoplasticity such that when heat is applied, it softens and exhibits fluidity, and when cooled, it returns to a rubber-like elastic body.
- styrenic block copolymers are preferable from the viewpoint of providing sufficient tackiness and superior stability over time of rotigotine and/or its pharmaceutically acceptable salts.
- styrene-based block copolymers include styrene-butadiene block copolymers, styrene-butadiene-styrene block copolymers, styrene-isoprene block copolymers, and styrene-isoprene-styrene block copolymers.
- styrene-ethylene/butylene block copolymer styrene-ethylene/butylene block copolymer, styrene-ethylene/butylene-styrene block copolymer, styrene-ethylene/propylene block copolymer, styrene-ethylene/propylene-styrene block copolymer, styrene-isobutylene block copolymer
- Polymers, styrene-isobutylene-styrene block copolymers, etc. may be mentioned, and one of these may be used or two or more may be used in combination.
- ethylene/butylene indicates a copolymer block of ethylene and butylene
- ethylene/propylene indicates a copolymer block of ethylene and propylene.
- a styrene-isoprene-styrene block copolymer is more preferable as the styrene-based thermoplastic elastomer according to the present invention.
- the styrene-isoprene-styrene block copolymer preferably has a viscosity average molecular weight of 30,000 to 2,500,000, more preferably 100,000 to 1,700,000.
- the viscosity-average molecular weight is less than the lower limit, the physical properties of the adhesive patch formulation (particularly the cohesive strength of the adhesive layer) tend to decrease. It tends to be difficult to manufacture a patch due to a decrease in compatibility with other ingredients.
- the content thereof when the styrene-based thermoplastic elastomer is contained as the adhesive base in the pressure-sensitive adhesive layer, the content thereof (when the styrene-based thermoplastic elastomer is a combination of two or more types,
- the total content (hereinafter the same) is preferably 5 to 50% by mass, more preferably 10 to 40% by mass, and 10 to 30% by mass with respect to the total mass of the pressure-sensitive adhesive layer. is more preferred.
- the content of the styrene-based thermoplastic elastomer is less than the lower limit, the cohesive strength and shape retention of the adhesive layer tend to decrease. When it increases excessively, the adhesive strength of the adhesive layer tends to decrease and the compatibility tends to decrease.
- the styrene-based thermoplastic elastomer (more preferably styrene-isoprene-styrene block copolymer) is used from the viewpoint that the adhesiveness and cohesion of the adhesive layer tend to be further improved.
- the polyisobutylene, wherein the mass ratio of the styrene-based thermoplastic elastomer to the polyisobutylene mass of the polyisobutylene
- styrene-isoprene-styrene block copolymer examples include Quintac (registered trademark) 3570C (trade name, manufactured by Zeon Corporation), SIS5002, SIS5229, SIS5505, SIS5505P (trade name, manufactured by JSR Corporation), and SIBSTAR. (registered trademark) T102 (trade name, manufactured by Kaneka Corporation) and the like.
- Polyisobutylene also includes so-called butyl rubber (isobutylene-isoprene rubber), and specific examples include Oppanol (registered trademark) N50, N80, N100, N150, B11, B12, B50, B80, B100, B120, B150.
- B220 (trade name, manufactured by BASF), JSR (registered trademark) Butyl 065, 268, 365 (trade name, manufactured by JSR Corporation), X_Butyl (registered trademark) RB 100, 101-3, 301, 402 (trade name, ARLANXEO), Exxon (registered trademark) Butyl065, 065S, 068, 068S, 268, 268S, 365, 365S (trade name, manufactured by Exxon Mobile), Butyl065, 268, 365 (trade name, manufactured by Nippon Butyl Co., Ltd.) etc.
- the content thereof is preferably 1 to 60% by mass, more preferably 5 to 50% by mass, even more preferably 10 to 40% by mass, relative to the total mass of the pressure-sensitive adhesive layer.
- acrylic adhesive base examples include those listed as adhesives in "Pharmaceutical Excipients Encyclopedia 2016 (edited by Japan Pharmaceutical Excipients Association)". It may be a combination of two or more types, but it is preferably an acrylic pressure-sensitive adhesive base having no carboxy group, and more preferably an acrylic pressure-sensitive adhesive base having no functional group.
- an acrylic pressure-sensitive adhesive base having no carboxy group and “an acrylic pressure-sensitive adhesive base having no functional group” respectively mean substantially no carboxy group and no functional group, preferably An acrylic polymer in which the content of carboxy groups and functional groups in the polymer is less than 3% by mass, respectively.
- acrylic adhesive base having no carboxy group examples include 2-ethylhexyl acrylate/vinylpyrrolidone copolymer, 2-ethylhexyl acrylate/2-ethylhexyl methacrylate/dodecyl methacrylate copolymer, 2-ethylhexyl acrylate/vinyl acetate copolymer, 2-ethylhexyl acrylate/methyl methacrylate/butyl acrylate copolymer, ethyl acrylate/methyl methacrylate copolymer, etc.
- Acrylic adhesive base 2-ethylhexyl (meth)acrylate/vinyl acetate/2-hydroxyethyl acrylate copolymer, 2-hydroxyethyl (meth)acrylate copolymer, 2-(meth)acrylate Hydroxypropyl copolymer, 3-hydroxypropyl (meth)acrylate copolymer, 4-hydroxybutyl (meth)acrylate copolymer, 2-ethylhexyl acrylate/vinyl acetate/hydroxyethyl acrylate/glycidyl methacrylate
- Acryl-based adhesive bases having a hydroxy group such as copolymers may be mentioned, and one of these may be used alone, or two or more thereof may be used in combination.
- acrylic adhesive base having no carboxy group a commercially available one may be used as appropriate.
- MAS 811, MAS 683 manufactured by Cosmedy Pharmaceutical Co., Ltd.
- Series manufactured by Henkel
- GELVA registered trademark
- acrylic adhesive series manufactured by Henkel
- GMS 3083 GMS 3253, acrylic polymers contained in GMS3235, etc.
- Duro-Tak registered trademark acrylic adhesive series (manufactured by Henkel) 87-202A, 87-2287, 87-2516, 87-2510, 87-4287 , 87-2525, 87-201A, 87-202A, 87-208A, 87-502A, 87-503A, 87-504A
- GELVA registered trademark
- the content thereof is the total weight of the pressure-sensitive adhesive layer. It is preferably 10 to 90% by mass, more preferably 20 to 80% by mass.
- the content of the acrylic adhesive base is less than the lower limit, the cohesive force of the adhesive layer tends to decrease, while when it exceeds the upper limit, rotigotine and / or its pharmacological effects Skin permeation of acceptable salts tends to be reduced.
- silicone adhesive base As the silicone adhesive base according to the present invention, in ASTM standards (ASTM D 1418), MQ (polydimethylsiloxane), VMQ (polymethylvinylsiloxane), PMQ (polymethylphenylsiloxane), PVMQ (polyphenylvinylmethyl siloxane), and a mixture of at least one of these with a silicone resin other than silicone rubber such as polyditrimethylsilylsiloxane. may be a combination of When a silicone resin other than the silicone rubber is mixed, it is preferably 0.1 to 20% by mass with respect to the total mass of the silicone adhesive base.
- silicone adhesive bases those commercially available may be used as appropriate.
- BIO-PSA7-430X, BIO-PSA7-440X, BIO-PSA7-450X, BIO-PSA7-460X each X is independently 1 or 2), BIO-PSA AC7-4201, BIO- Provided as PSA AC7-4301, BIO-PSA AC7-4302, MD7-4502, MD7-4602, 7-9700, MG7-9800, MG7-9850; BIO-PSA 7-4560 (hot melt silicone adhesive), etc.
- a silicone adhesive base or the like can be used as appropriate.
- the silicone adhesive base according to the present invention for example, when it has a methyl group, a peroxide is added to dehydrogenate the hydrogen atoms of the methyl group and crosslink between the methyl groups.
- vinyl groups are present, the vinyl groups are crosslinked by combining a cross-linking agent comprising a SiH group-containing siloxane compound; It may be one in which silanol groups are crosslinked.
- the content thereof is the total weight of the pressure-sensitive adhesive layer. It is preferably 10 to 90% by mass, more preferably 20 to 80% by mass.
- the content of the silicone adhesive base is less than the lower limit, the cohesive force of the adhesive layer tends to decrease. Skin permeation of acceptable salts tends to be reduced.
- the pressure-sensitive adhesive layer according to the present invention preferably further contains propyl gallate. This tends to further improve the temporal stability of rotigotine and/or its pharmaceutically acceptable salts.
- the content thereof is preferably 0.05 to 1% by mass, preferably 0.075 to 1%, based on the total mass of the pressure-sensitive adhesive layer. It is more preferably 0.8% by mass, even more preferably 0.1 to 0.6% by mass, even more preferably 0.1 to 0.3% by mass. If the propyl gallate content is less than the lower limit, the effect of improving the stability over time of rotigotine and/or a pharmaceutically acceptable salt thereof tends to be insufficient, while the content exceeds the upper limit. As a result, the cohesive strength of the pressure-sensitive adhesive layer tends to decrease and the adhesive strength tends to decrease.
- the content of propyl gallate is based on 1 part by mass of the content of thioglycolic acid and/or a pharmaceutically acceptable salt thereof in terms of sodium thioglycolate contained in the pressure-sensitive adhesive layer. , preferably 0.01 to 35 parts by mass, more preferably 0.05 to 10 parts by mass, even more preferably 0.1 to 5 parts by mass, 0.1 to 1 part by mass is even more preferable, and 0.15 to 0.5 parts by mass is particularly preferable.
- the ratio of the content of propyl gallate to the content of thioglycolic acid and/or its pharmaceutically acceptable salts is within the above range, rotigotine and/or its pharmaceutically acceptable salts are stable over time. There is a tendency that the effect of improving the properties is particularly exhibited.
- drugs other than rotigotine and its pharmaceutically acceptable salts drugs other than rotigotine and its pharmaceutically acceptable salts; thioglycolic acid and its pharmaceutically acceptable salts; Stabilizers other than propyl gallate; tackifiers; absorption enhancers; skin irritation reducing agents; may be used as the adhesive layer according to the present invention.
- Drugs other than rotigotine and its pharmaceutically acceptable salts include, for example, non-steroidal anti-inflammatory analgesics (diclofenac, indomethacin, ketoprofen, felbinac, loxoprofen, ibuprofen, flurbiprofen, tiaprofen, acemethacin, sulindac , etodolac, tolmetine, piroxicam, meloxicam, ampiroxicam, naproxen, azapropazone, methyl salicylate, glycol salicylate, valdecoxib, celecoxib, rofecoxib, amphenac, etc.), antipyretic analgesics (acetaminophen, etc.), antihistamines (diphenhydramine, chlorpheniramine, mequitazine, homochlorcyclidine, etc.), antihypertensive agents (diltiazem, nicardipine, etc.
- the content thereof (the total content thereof when two or more types are present) is 10 per the total mass of the pressure-sensitive adhesive layer. % or less is preferable.
- Stabilizers other than thioglycolic acid and its pharmaceutically acceptable salts and propyl gallate include, for example, ascorbic acid or its metal salts or esters (e.g., palmitate), isoascorbic acid or its metals salt, ethylenediaminetetraacetic acid or its metal salts, cysteine, acetylcysteine, 2-mercaptobenzimidazole, dibutylhydroxytoluene, butylhydroxyanisole, pentaerythrityl-tetrakis[3-(3,5-di-t-butyl-4- hydroxyphenyl) propionate], 3-mercapto-1,2-propanediol, tocopherol, tocopherol acetate, thymol, soybean lecithin, rutin, dihydroxybenzoic acid, potassium dicloisocyanurate, quercetin, hydroquinone, hydroxymethanesulfinic acid metal salt
- the pressure-sensitive adhesive layer when the effect of stabilizing rotigotine and/or a pharmaceutically acceptable salt thereof over time by thioglycolic acid and/or a pharmaceutically acceptable salt thereof is inhibited, or , from the viewpoint of the adhesive strength of the pressure-sensitive adhesive layer, it is preferable not to contain the other stabilizers in the pressure-sensitive adhesive layer, and the content thereof (the total content thereof when there are two or more types) is preferably 3% by mass or less, more preferably 2% by mass or less, and 0.25% by mass or less (for example, 0 to 0.25% by mass, 0.005 to 0.25% by mass).
- the tackifier is blended mainly for the purpose of increasing the adhesiveness of the adhesive base (preferably rubber adhesive base).
- tackifiers include petroleum-based resins, rosin-based resins, terpene-based resins, phenol-based resins, and xylene-based resins.
- the tackifier may be one of these or a combination of two or more of them, and the adhesive layer according to the present invention contains the rubber-based adhesive as the adhesive base. In that case, it is preferable that a petroleum-based resin is further contained.
- the tackifier When the tackifier is further contained in the pressure-sensitive adhesive layer, its content (the total content thereof when two or more types are present) improves the adhesive strength of the pressure-sensitive adhesive layer and/or From the viewpoint of alleviating local irritation during peeling, it is preferably 5 to 80% by mass, more preferably 10 to 80% by mass, more preferably 20 to 60% by mass, based on the total mass of the pressure-sensitive adhesive layer. % is more preferred.
- Examples of the petroleum-based resins include, for example, C5-based synthetic petroleum resins (copolymers of at least two of isoprene, cyclopentadiene, 1,3-pentadiene, and 1-pentene; among 2-pentene and dicyclopentadiene 1,3-pentadiene-based resin, etc.), C9 synthetic petroleum resin (indene, styrene, methylindene, and at least two copolymers of ⁇ -methylstyrene, etc.) , and dicyclopentadiene-based synthetic petroleum resins (dicyclopentadiene-based copolymers with isoprene and/or 1,3-pentadiene).
- C5-based synthetic petroleum resins copolymers of at least two of isoprene, cyclopentadiene, 1,3-pentadiene, and 1-pentene; among 2-pentene and dicyclopentadiene 1,3-pentadiene-based resin
- alicyclic petroleum resins alicyclic saturated hydrocarbon resins, etc.
- alicyclic hydrogenated petroleum resins aliphatic petroleum resins (aliphatic hydrocarbon resins, etc.)
- aliphatic hydrogenated petroleum resins and aromatic petroleum resins.
- Alcon P-70, Alcon P-85, Alcon P-90, Alcon P-100, Alcon P-115, Alcon P-125, Alcon M-90, Alcon M-100, Alcon M-115, Alcon M-135 (trade name, manufactured by Arakawa Chemical Industries, Ltd.), Escorez 8000 (trade name, manufactured by Esso Petrochemical Co., Ltd.) is mentioned.
- the petroleum-based resin according to the present invention may be one of these or a combination of two or more of them.
- alicyclic saturated hydrocarbon resins are preferred from the viewpoints of easily obtaining suitable adhesion to the skin, feeling good in use because there is little odor, etc., and further suppressing the generation of rotigotine decomposition products. is more preferable.
- the alicyclic saturated hydrocarbon resin refers to a resin that is a homopolymer or copolymer of alicyclic saturated hydrocarbon monomers.
- the alicyclic saturated hydrocarbon resin preferably has a weight average molecular weight of 1,000 to 1,500, more preferably 1,200 to 1,400.
- the content is It is preferably 5 to 80% by mass, more preferably 10 to 70% by mass, even more preferably 10 to 60% by mass, and 20 to 60% by mass with respect to the total mass of the pressure-sensitive adhesive layer. is particularly preferred.
- the content of the alicyclic saturated hydrocarbon resin is less than the lower limit, the adhesive strength of the pressure-sensitive adhesive layer and adhesion to the skin tend to decrease. / Or, the skin permeability of the pharmaceutically acceptable salt thereof and the shape retention of the pressure-sensitive adhesive layer tend to decrease.
- absorption enhancer examples include those having a drug percutaneous absorption enhancement effect (skin penetration enhancement effect), and examples thereof include fatty alcohols, fatty acids having 6 to 20 carbon atoms, fatty acid esters, fatty acid amides, or aliphatic aromatic organic acids; aromatic alcohols; aromatic organic acid esters or ethers; POE hydrogenated castor oils; lecithins;
- the absorption enhancer may be one of these or a combination of two or more of them. Therefore, it is preferable that an aliphatic alcohol is further contained in the pressure-sensitive adhesive layer.
- the content thereof (the total content thereof when two or more of them are present) is rotigotine and/or a pharmaceutically acceptable salt thereof. From the viewpoint of better skin permeability, the content is preferably 1 to 15% by mass, more preferably 3 to 7% by mass, based on the total mass of the pressure-sensitive adhesive layer.
- the aliphatic alcohol refers to a saturated or unsaturated, linear or branched, monovalent or divalent or higher aliphatic alcohol, and the aliphatic alcohol according to the present invention is monovalent Preferably.
- the number of carbon atoms in the aliphatic alcohol is preferably 3-23, more preferably 12-23, even more preferably 12-20. If the number of carbon atoms in the aliphatic alcohol is less than the lower limit, the boiling point becomes low, making it difficult to keep the content in the formulation constant, and the stability of the aliphatic alcohol over time tends to decrease. On the other hand, when the upper limit is exceeded, the skin permeability of rotigotine and/or its pharmaceutically acceptable salts tends to decrease.
- Examples of the aliphatic alcohol include isopropanol, hexyl alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, octyldodecanol, oleyl alcohol, linolenyl alcohol, and hexyldecanol.
- the fatty alcohol may be one of these or a combination of two or more of them. At least one selected from the group consisting of octyldodecanol and lauryl alcohol is preferable from the viewpoint that it tends to particularly improve the skin permeability of pharmaceutically acceptable salts thereof.
- the content is 1 relative to the total mass of the pressure-sensitive adhesive layer It is preferably from 1 to 15% by mass, more preferably from 1 to 10% by mass, even more preferably from 2 to 7% by mass, and particularly preferably from 3 to 7% by mass. If the content of the aliphatic alcohol is less than the lower limit, the skin permeability of rotigotine and / or a pharmaceutically acceptable salt thereof tends not to be sufficiently improved, while if it exceeds the upper limit, the adhesive The compatibility with the base and other components tends to decrease.
- skin irritation reducing agent examples include those having an effect of reducing irritation given to the skin by drugs and stabilizers, and examples thereof include cholesterol.
- the skin irritation reducing agent may be a combination of two or more.
- the content thereof (the total content thereof when two or more kinds thereof are contained) exhibits a sufficient skin irritation-reducing effect, and , From the viewpoint of sufficiently maintaining compatibility with the adhesive base, it is preferably 0.1 to 7% by mass, and preferably 1 to 7% by mass, based on the total mass of the adhesive layer. More preferably, 3 to 5% by mass is even more preferable.
- the adsorbent examples include hygroscopic inorganic and/or organic substances, more specifically, minerals such as talc, kaolin, bentonite; fumed silica (Aerosil (registered trademark), etc.), hydrous silica metal compounds such as zinc oxide and dried aluminum hydroxide gel; weak acids such as lactic acid and acetic acid; sugars such as dextrin; ), aminoalkyl methacrylate copolymers, carboxyvinyl polymers, and high molecular weight polymers such as butyl methacrylate methyl methacrylate copolymers.
- the adsorbent may be one of these or a combination of two or more of them.
- the pressure-sensitive adhesive layer further contains crosslinked polyvinylpyrrolidone.
- the content thereof is determined from the viewpoint of the adhesiveness of the pressure-sensitive adhesive layer. It is preferably 3 to 25% by weight, more preferably 3 to 15% by weight, based on the total weight of the layer.
- crosslinked polyvinylpyrrolidone examples include crosslinked N-vinylpyrrolidone polymers.
- the N-vinylpyrrolidone polymer may be a homopolymer or a copolymer, and examples thereof include a homopolymer of N-vinylpyrrolidone and a copolymer of N-vinylpyrrolidone and a polyfunctional monomer. mentioned.
- the crosslinked polyvinylpyrrolidone according to the present invention is preferably a crosslinked homopolymer of 1-vinyl-2-pyrrolidone (also referred to as “crospovidone”).
- Crospovidone is commercially available such as Kollidon CL, Kollidon CL-M (manufactured by BASF Japan Ltd.); Polyplasdone XL, Polyplasdone XL-10, Polyplasdone INF-10 (manufactured by ISP Japan Ltd.) may be used.
- the content thereof (the total content thereof when two or more types are present) is 3 with respect to the total mass of the pressure-sensitive adhesive layer. It is preferably up to 25% by mass, more preferably 3 to 20% by mass, even more preferably 3 to 15% by mass.
- the content of the crosslinked polyvinylpyrrolidone is the mass ratio of the content of rotigotine and/or a pharmaceutically acceptable salt thereof in the pressure-sensitive adhesive layer in terms of rotigotine free form (rotigotine and / or content of rotigotine free form of pharmaceutically acceptable salt thereof: content of crosslinked polyvinylpyrrolidone) is preferably 15:3 to 5:25, preferably 15:3 to 5:20 More preferably, it is 15:3 to 5:15.
- the desalting agent is blended mainly for the purpose of converting all or part of the basic drug to the free form.
- a desalting agent is not particularly limited.
- the drug when an acid addition salt of a drug is blended as the drug to obtain a preparation containing a drug in free form, the drug should be a basic substance.
- Metal ion-containing desalting agents and basic nitrogen atom-containing desalting agents are more preferred.
- the metal ion-containing desalting agent include sodium acetate (including anhydrous sodium acetate), sodium hydroxide, potassium hydroxide, magnesium hydroxide, calcium hydroxide, sodium hydrogen carbonate, potassium hydrogen carbonate, sodium citrate, and sodium lactate.
- the pressure-sensitive adhesive layer according to the present invention further contains a compound derived from the basic drug and the desalting agent (for example, sodium chloride when rotigotine hydrochloride and sodium acetate are combined). good too.
- a compound derived from the basic drug and the desalting agent for example, sodium chloride when rotigotine hydrochloride and sodium acetate are combined.
- the content thereof is two or more.
- the total amount is preferably 10% by mass or less with respect to the total mass of the pressure-sensitive adhesive layer.
- the plasticizer is blended mainly for the purpose of adjusting the adhesive physical properties of the adhesive layer, flow characteristics in manufacturing the adhesive layer, percutaneous absorption characteristics of the drug, and the like.
- plasticizers include silicone oils; petroleum oils such as paraffinic process oils, naphthenic process oils and aromatic process oils; squalane, squalene; olive oil, camellia oil, castor oil, tall oil and peanut oil.
- dibasic acid esters such as dibutyl phthalate and dioctyl phthalate; liquid rubbers such as liquid polybutene and liquid isoprene rubber; diethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol and the like.
- the plasticizer may be one of these or a combination of two or more of them, but it should be at least one selected from the group consisting of silicone oil, liquid paraffin, and liquid polybutene. is particularly preferred.
- the content thereof (the total content thereof when two or more types are present) is an improvement in the adhesive strength of the pressure-sensitive adhesive layer and/or peeling.
- the amount is preferably 1 to 30% by mass, more preferably 5 to 20% by mass, based on the total mass of the pressure-sensitive adhesive layer.
- solubilizer/Filler examples include organic acids such as acetic acid and surfactants, and one of them or a combination of two or more of them may be used.
- the filler is blended mainly for the purpose of adjusting the adhesive strength of the adhesive layer.
- the filler include aluminum hydroxide, calcium carbonate, magnesium carbonate; aluminum silicate and magnesium silicate. silicates such as; silicic acid, barium sulfate, calcium sulfate, calcium zincate, zinc oxide, and titanium oxide, which may be used alone or in combination of two or more.
- preservative examples include paraoxybenzoic acid derivatives, benzyl alcohol, phenol, cresol, and the like, and one of them or a combination of two or more of them may be used.
- the pressure-sensitive adhesive layer according to the present invention is not particularly limited, but preferably has a mass per unit area (area of sticking surface) of 20 to 200 g/m 2 , more preferably 30 to 100 g/m 2 . It is preferably 30 to 70 g/m 2 and more preferably. Also, the area of the sticking surface of the pressure-sensitive adhesive layer according to the present invention can be appropriately adjusted according to the purpose of treatment and the application target, and is not particularly limited, but is usually in the range of 0.5 to 200 cm 2 . .
- the rotigotine-containing patch of the present invention is not particularly limited, and can be produced by appropriately adopting a known patch production method.
- a known patch production method For example, first, rotigotine and/or a pharmaceutically acceptable salt thereof, thioglycolic acid and/or a pharmaceutically acceptable salt thereof, the adhesive base, and optionally propyl gallate, a solvent, and The above other components are kneaded according to a conventional method to obtain a uniform pressure-sensitive adhesive layer composition.
- rotigotine free form is used as the rotigotine and/or a pharmaceutically acceptable salt thereof, it may be a type I crystal, a type II crystal, or an amorphous form.
- the rotigotine and/or its pharmaceutically acceptable salt may be a hydrate, or may be dissolved in the solvent.
- the solvent include anhydrous ethanol, toluene, heptane, methanol, ethyl acetate, hexane, isopropanol, and mixtures of at least two of these.
- this pressure-sensitive adhesive layer composition is spread on the surface of the support layer (usually on one surface) so as to obtain a desired mass per unit area, it is heated as necessary to dissolve the solvent. is removed by drying to form an adhesive layer, and if necessary, the patch of the present invention can be obtained by cutting into a desired shape.
- the method for producing the rotigotine-containing patch of the present invention may further include a step of attaching the release liner to the surface of the adhesive layer opposite to the support layer, wherein the pressure-sensitive adhesive layer composition After forming a pressure-sensitive adhesive layer by first spreading a substance on one side of the release liner to obtain a desired mass per unit area, the support is applied on the side of the pressure-sensitive adhesive layer opposite to the release liner.
- the adhesive patch of the present invention may be obtained by laminating the body layers together and, if necessary, cutting into a desired shape. Furthermore, the patch thus obtained may be enclosed in a storage packaging container (for example, an aluminum laminate bag) to form a package, if necessary.
- a rotigotine-containing composition comprising a support layer and an adhesive layer, wherein the adhesive layer contains at least one selected from the group consisting of rotigotine and a pharmaceutically acceptable salt of rotigotine, and an adhesive base.
- a method for stabilizing the rotigotine and/or a pharmaceutically acceptable salt thereof in a patch A step of further containing at least one selected from the group consisting of thioglycolic acid and pharmaceutically acceptable salts of thioglycolic acid in the pressure-sensitive adhesive layer, A method for stabilizing rotigotine is also provided.
- the method for stabilizing rotigotine of the present invention preferably includes a step of further containing propyl gallate in the adhesive layer.
- the method of adding thioglycolic acid and/or a pharmaceutically acceptable salt thereof and propyl gallate to the adhesive layer is not particularly limited.
- the adhesive base, and optionally the solvent and other components, thioglycolic acid and/or a pharmaceutically acceptable and, if necessary, propyl gallate is added and kneaded according to a conventional method to obtain a uniform pressure-sensitive adhesive layer composition, which is used as the pressure-sensitive adhesive layer composition. is mentioned.
- the receptor solution was fed at a flow rate of about 5 mL/hr while circulating warm circulating water around the periphery so that the receptor solution was kept at 32° C., and the receptor solution was sampled every 2 hours for up to 24 hours. did.
- the concentration of rotigotine in the collected receptor solution was measured by high-performance liquid chromatography, and the following equations were obtained.
- the amount of rotigotine permeated through the skin per unit area of the pressure-sensitive adhesive layer was calculated by the method, and the amount of permeation through the skin per hour (skin permeation rate ( ⁇ g/cm 2 /hr)) was determined. Two test samples were measured, and the average of the maximum values of each skin permeation rate within 24 hours was taken as the maximum skin permeation rate (Jmax).
- the release liner was removed from the patch after storage, and the adhesive layer was immersed in 5 mL of tetrahydrofuran to dissolve. v:v))) was added so that the total volume was 25 mL, the mixture was shaken, and filtered through a filter to obtain a sample solution. Also, rotigotine having a known concentration was dissolved in advance in the diluted solution to prepare a standard solution.
- a high-performance liquid chromatography device manufactured by Shimadzu Corporation was analyzed under the following conditions: Column: TSKgel ODS-80TsQA (4.6 mm ID ⁇ 150 mm), 5 ⁇ m Mobile phase liquid: a mixture of 0.2% phosphate buffer containing 10 mM sodium dodecyl sulfate and acetonitrile (50:50 (v:v)) Detection wavelength: 225 nm Column temperature: 40°C At a flow rate of 0.7 mL/min, chromatograms of 7,8-Dihydro Naphthol and depropylated rotigotine (Despropyl RTN), which are rotigotine degradation products, in the sample solution were obtained.
- TSKgel ODS-80TsQA 4 mm ID ⁇ 150 mm
- Mobile phase liquid a mixture of 0.2% phosphate buffer containing 10 mM sodium dodecyl sulfate and acetonitrile (50:50 (v:v))
- a chromatogram of rotigotine in the standard solution was obtained with the high-performance liquid chromatography device under the same conditions as above. From the area under the curve of rotigotine in the obtained chromatogram and the area under each curve of the chromatograms of 7,8-dihydronaphthol and depropylated rotigotine obtained above, the amount of 7,8-dihydronaphthol generated and The amount of depropylated rotigotine generated was calculated for each. In addition, the theoretical content of rotigotine was calculated from the amount of rotigotine blended in the adhesive layer, and the respective generated amounts were divided by the theoretical content.
- the incidence rate of each rotigotine degradation product (7,8-Dihydro Naphthol incidence rate [%], Despropyl RTN incidence rate [%]) was calculated.
- the peak area appearing around 7.8 minutes was defined as the peak area of 7,8-dihydronaphthol, and the peak area appearing around 9.7 minutes was defined as the peak area of depropylrotigotine.
- the release liner was removed from the patch after storage, and the adhesive layer was immersed in 5 mL of tetrahydrofuran to dissolve. A mixture of (pH 5.5) and acetonitrile (60:40 (v:v))) was added so that the total volume was 25 mL, shaken, and filtered through a filter to obtain a sample solution. Also, rotigotine having a known concentration was dissolved in advance in the diluted solution to prepare a standard solution.
- a chromatogram of rotigotine in the standard solution was obtained with the high-performance liquid chromatography device under the same conditions as above. From the area under the curve of rotigotine in the obtained chromatogram and the area under each curve of the chromatograms of 7,8-dihydronaphthol and depropylated rotigotine obtained above, the amount of 7,8-dihydronaphthol generated and The amount of depropylated rotigotine generated was calculated for each. In addition, the theoretical content of rotigotine was calculated from the amount of rotigotine blended in the adhesive layer, and the respective generated amounts were divided by the theoretical content.
- the incidence rate of each rotigotine degradation product (7,8-Dihydro Naphthol incidence rate [%], Despropyl RTN incidence rate [%]) was calculated.
- the peak area appearing around 56.8 minutes was defined as the peak area of 7,8-dihydronaphthol, and the peak area appearing around 44.1 minutes was defined as the peak area of depropylrotigotine.
- Example 1 First, 9 parts by mass of rotigotine (free form), 12.21 parts by mass of styrene-isoprene-styrene block copolymer, 5.23 parts by mass of polyisobutylene, 44.46 parts by mass of alicyclic saturated hydrocarbon resin , 13.95 parts by weight of liquid paraffin, 5 parts by weight of octyldodecanol, and 10 parts by weight of crosslinked polyvinylpyrrolidone are added with 0.15 parts by weight of sodium thioglycolate, and added to an appropriate amount of solvent (anhydrous ethanol and toluene). They were mixed to obtain an adhesive layer composition.
- solvent anhydrous ethanol and toluene
- the pressure-sensitive adhesive layer composition obtained is spread on a release liner (polyethylene terephthalate film that has been subjected to mold release treatment), and the solvent is removed by drying to give a mass per unit area of 50 g/m 2 .
- An adhesive layer was formed as follows. A support layer (polyethylene terephthalate film) was laminated on the surface of the obtained pressure-sensitive adhesive layer opposite to the release liner to obtain an adhesive patch laminated in the order of support layer/adhesive layer/release liner.
- Examples 2-6, Comparative Examples 1-2 Each patch was obtained in the same manner as in Example 1, except that the composition of the pressure-sensitive adhesive layer composition (excluding the solvent) was adjusted to the composition shown in Table 1 below.
- the patches obtained in Examples 1-6 and Comparative Examples 1-2 were evaluated for stability (2 weeks after production, 60° C., method (1)).
- the results of the stability evaluation are shown in Table 1 together with the compositions of the pressure-sensitive adhesive layer compositions (compositions excluding the solvent) of each example and comparative example.
- Jmax maximum skin permeation rate
- Example 7 Comparative Examples 3-5
- Example 7 Each patch was obtained in the same manner as in Example 1, except that the composition of the pressure-sensitive adhesive layer composition (excluding the solvent) was adjusted to the composition shown in Table 2 below.
- Example 7 and Comparative Examples 3-5 were evaluated for stability (2 weeks after production, 60°C, method (2)).
- the results of the stability evaluation are shown in Table 2 together with the composition of the pressure-sensitive adhesive layer composition (composition excluding the solvent) of each example and comparative example.
- Table 2 also shows the results of Comparative Example 1 for reference.
- the numbers in parentheses in the column of thioglycolic acid indicate parts by mass in terms of sodium thioglycolate.
- the adhesive layer containing thioglycolic acid or sodium thioglycolate had a temperature of 60°C. It was confirmed that the generation rate of rotigotine degradation products was sufficiently suppressed even after 2 weeks of production under severe conditions, and rotigotine was stabilized at a high level.
- thioglycolic acid or sodium thioglycolate was contained in the adhesive layer even though the components conventionally used as drug stabilizers were contained.
- the generation rate of at least one of the rotigotine decomposition products was higher than that of the plaster prepared with the stabilizer, and the generation rate of the rotigotine decomposition product was even higher than that of Comparative Example 1, which did not contain the stabilizer. There was also a thing (for example, comparative examples 2 and 3).
- Example 8-9 Comparative Examples 6-7
- Table 3 Table 3
- BIO-PSA-4202 DuPont Toray Specialty Materials Co., Ltd.
- Duro-Tak 87-900A manufactured by Henkel
- Example 10-12 Each patch was obtained in the same manner as in Example 1, except that the composition of the pressure-sensitive adhesive layer composition (excluding the solvent) was adjusted to the composition shown in Table 4 below.
- Example 10 to 12 were evaluated for stability (2 weeks after production, 60°C, method (2)).
- the results of the stability evaluation are shown in Table 4 together with the composition of the pressure-sensitive adhesive layer composition of each example (composition excluding the solvent).
- Table 4 also shows the results of Example 4 for reference.
- a rotigotine-containing patch that has particularly excellent stability over time of rotigotine and/or a pharmaceutically acceptable salt thereof.
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Abstract
Description
前記粘着剤層が、チオグリコール酸及びチオグリコール酸の薬学的に許容される塩からなる群から選択される少なくとも1種と、粘着基剤と、をさらに含有する
ロチゴチン含有貼付剤。
支持体層及び粘着剤層を備え、前記粘着剤層がロチゴチン及びロチゴチンの薬学的に許容される塩からなる群から選択される少なくとも1種を含有するロチゴチン含有貼付剤であり、
前記粘着剤層が、チオグリコール酸及びチオグリコール酸の薬学的に許容される塩からなる群から選択される少なくとも1種と、粘着基剤と、をさらに含有する。
本発明に係る粘着剤層は、薬物としてロチゴチン及びその薬学的に許容される塩からなる群から選択される少なくとも1種(ロチゴチン及び/又はその薬学的に許容される塩)を含有する。本発明において前記粘着剤層中に含有されるロチゴチンの形態としては、遊離体(フリー体)であってもその薬学的に許容される塩であってもよく、製造中及び/又は製造された製剤中においてロチゴチンの薬学的に許容される塩が脱塩されてフリー体となったものであってもよく、これらのうちの1種であっても2種以上の混合物であってもよい。ロチゴチンの薬学的に許容される塩としては、酸付加塩が挙げられ、前記酸付加塩の酸としては、例えば、塩酸、硫酸、硝酸、酢酸、リン酸、亜リン酸、臭化水素酸、マレイン酸、リンゴ酸、アスコルビン酸、酒石酸、ラウリン酸、ステアリン酸、パルミチン酸、オレイン酸、ミリスチン酸、ラウリル硫酸、リノレン酸、フマル酸が挙げられる。前記酸付加塩としては、これらの酸の付加塩の1種であっても2種以上であってもよい。本発明に係る粘着剤層としては、これらの中でも、ロチゴチンを遊離体の形態で含有していることが好ましい。
本発明に係る粘着剤層は、チオグリコール酸及びチオグリコール酸の薬学的に許容される塩からなる群から選択される少なくとも1種(チオグリコール酸及び/又はその薬学的に許容される塩)を含有する。本発明において前記粘着剤層中に含有されるチオグリコール酸の形態としては、遊離体(フリー体)であってもその薬学的に許容される塩であってもよく、製造中及び/又は製造された製剤中においてチオグリコール酸の薬学的に許容される塩が脱塩されてフリー体となったものであってもよく、これらのうちの1種であっても2種以上の混合物であってもよい。チオグリコール酸の薬学的に許容される塩としては、アルカリ金属塩、アルカリ土類金属塩、アンモニアとの塩、アルキルアミン、アルカノールアミンが挙げられ、より具体的には、例えば、ナトリウム塩、カリウム塩、カルシウム塩、マグネシウム塩、アンモニウム塩、ジメチルアミン塩、ジエチルアミン塩、トリメチルアミン塩、トリエチルアミン塩、モノエタノールアミン塩、ジエタノールアミン塩、ジイソプロパノールアミン塩、トリエタノールアミン塩、トリイソプロパノールアミン塩が挙げられる。チオグリコール酸の薬学的に許容される塩としては、これらの塩の1種であっても2種以上であってもよい。本発明に係る粘着剤層としては、これらの中でも、チオグリコール酸及びチオグリコール酸のアルカリ金属塩(より好ましくはナトリウム塩)からなる群から選択される少なくとも1種を含有していることが好ましい。
本発明に係る粘着剤層は、また、粘着基剤を含有する。前記粘着基剤としては、特に限定されず、ゴム系粘着基剤、アクリル系粘着基剤、及びシリコーン系粘着基剤が挙げられ、これらのうちの1種であっても2種以上の組み合わせであってもよいが、ゴム系粘着基剤、カルボキシ基を有しないアクリル系粘着基剤、及びシリコーン系粘着基剤からなる群から選択される少なくとも1種であることが好ましく、ゴム系粘着基剤を少なくとも含有することがより好ましい。
前記ゴム系粘着基剤としては、スチレン系熱可塑性エラストマー、ポリイソブチレン、天然ゴム、アルキルビニルエーテル(共)重合体、ポリイソプレン、ポリブタジエン等が挙げられ、これらのうちの1種を単独で用いても2種以上を組み合わせて用いてもよいが、これらの中でも、スチレン系熱可塑性エラストマーが特に好ましい。前記スチレン系熱可塑性エラストマーとは、熱を加えると軟化して流動性を示し、冷却すればゴム状弾性体に戻る熱可塑性を示すスチレン系エラストマーである。このうち、十分な粘着性付与及びロチゴチン及び/又はその薬学的に許容される塩の経時安定性により優れる観点からは、スチレン系ブロック共重合体が好ましい。
本発明に係るアクリル系粘着基剤としては、例えば、「医薬品添加物事典2016(日本医薬品添加剤協会編集)」に粘着剤として収載されているものが挙げられ、これらのうちの1種であっても2種以上の組み合わせであってもよいが、カルボキシ基を有しないアクリル系粘着基剤であることが好ましく、官能基を有しないアクリル系粘着基剤であることがより好ましい。本発明において、「カルボキシ基を有しないアクリル系粘着基剤」及び「官能基を有しないアクリル系粘着基剤」とは、それぞれ、カルボキシ基及び官能基を実質的に有さない、好ましくは、高分子中のカルボキシ基及び官能基の含有量が、それぞれ、3質量%未満であるアクリル系高分子を示す。
本発明に係るシリコーン系粘着基剤としては、ASTM規格(ASTM D 1418)において、MQ(ポリジメチルシロキサン)、VMQ(ポリメチルビニルシロキサン)、PMQ(ポリメチルフェニルシロキサン)、PVMQ(ポリフェニルビニルメチルシロキサン)と表されるシリコーンゴムや、これらのうちの少なくとも1種とポリジトリメチルシリルシロキサン等のシリコーンゴム以外のシリコーン樹脂との混合物等が挙げられ、これらのうちの1種であっても2種以上の組み合わせであってもよい。なお、前記シリコーンゴム以外のシリコーン樹脂が混合される場合には、シリコーン系粘着基剤の全質量に対して0.1~20質量%であることが好ましい。
本発明に係る粘着剤層としては、没食子酸プロピルをさらに含有することが好ましい。これにより、ロチゴチン及び/又はその薬学的に許容される塩の経時安定性がさらに向上する傾向にある。
本発明に係る粘着剤層としては、本発明の効果を阻害しない範囲内において、ロチゴチン及びその薬学的に許容される塩以外の他の薬物;チオグリコール酸及びその薬学的に許容される塩並びに没食子酸プロピル以外の他の安定化剤;粘着付与剤;吸収促進剤;皮膚刺激低減剤;吸着剤、脱塩剤、可塑剤、溶解剤、充填剤、保存剤等の添加剤をさらに含有していてもよい。
前記ロチゴチン及びその薬学的に許容される塩以外の他の薬物としては、例えば、非ステロイド性消炎鎮痛剤(ジクロフェナク、インドメタシン、ケトプロフェン、フェルビナク、ロキソプロフェン、イブプロフェン、フルルビプロフェン、チアプロフェン、アセメタシン、スリンダク、エトドラク、トルメチン、ピロキシカム、メロキシカム、アンピロキシカム、ナプロキセン、アザプロパゾン、サリチル酸メチル、サリチル酸グリコール、バルデコキシブ、セレコキシブ、ロフェコキシブ、アンフェナク等)、解熱鎮痛薬(アセトアミノフェン等)、抗ヒスタミン剤(ジフェンヒドラミン、クロルフェニラミン、メキタジン、ホモクロルシクリジン等)、降圧剤(ジルチアゼム、ニカルジピン、ニルバジピン、メトプロロール、ビソプロロール、トランドラプリル等)、抗パーキンソン剤(ぺルゴリド、ロピニロール、ブロモクリプチン、セレギリン等)、気管支拡張剤(ツロブテロール、イソプロテレノロール、サルブタモール等)、抗アレルギー剤(ケトチフェン、ロラタジン、アゼラスチン、テルフェナジン、セチリジン、アシタザノラスト等)、局所麻酔剤(リドカイン、ジブカイン等)、神経障害性疼痛治療薬(プレガバリン等)、非麻薬性鎮痛薬(ブプレノルフィン、トラマドール、ペンタゾシン)、麻酔系鎮痛剤(モルヒネ、オキシコドン、フェンタニル等)、泌尿器官用剤(オキシブチニン、タムスロシン等)、精神神経用剤(プロマジン、クロルプロマジン等)、ステロイドホルモン剤(エストラジオール、プロゲステロン、ノルエチステロン、コルチゾン、ヒドロコルチゾン等)、抗うつ剤(セルトラリン、フルオキセチン、パロキセチン、シタロプラム等)、抗痴呆薬(ドネペジル、リバスチグミン、ガランタミン等)、抗精神病薬(リスペリドン、オランザピン等)、中枢神経興奮剤(メチルフェニデート等)、骨粗しょう症治療薬(ラロキシフェン、アレンドロネート等)、乳がん予防薬(タモキシフェン等)、抗肥満薬(マジンドール、シブトラミン等)、不眠症改善薬(メラトニン等)、抗リウマチ薬(アクタリット等)が挙げられ、これらのうちの1種であっても2種以上の組み合わせであってもよい。
チオグリコール酸及びその薬学的に許容される塩並びに没食子酸プロピル以外の他の安定化剤としては、例えば、アスコルビン酸又はその金属塩若しくはエステル(例えば、パルミチン酸エステル)、イソアスコルビン酸又はその金属塩、エチレンジアミン四酢酸又はその金属塩、システイン、アセチルシステイン、2-メルカプトベンズイミダゾール、ジブチルヒドロキシトルエン、ブチルヒドロキシアニソール、ペンタエリスリチル-テトラキス[3-(3,5-ジ-t-ブチル-4-ヒドロキシフェニル)プロピオネート]、3-メルカプト-1,2-プロパンジオール、トコフェロール、酢酸トコフェロール、チモール、大豆レシチン、ルチン、ジヒドロキシ安息香酸、ジクロイソシアヌール酸カリウム、クエルセチン、ヒドロキノン、ヒドロキシメタンスルフィン酸金属塩、メタ重亜硫酸金属塩(例えば、ピロ亜硫酸ナトリウム)、亜硫酸金属塩、チオグリコール酸金属塩以外のチオ硫酸金属塩が挙げられ、これらのうちの1種であっても2種以上の組み合わせであってもよい。上記において、金属塩としては、例えば、ナトリウム塩、カリウム塩、カルシウム塩、マグネシウム塩、カルシウム二ナトリウム塩が挙げられる。また、エステルとしては、パルミチン酸エステル、ステアリン酸エステル、ミリスチン酸エステルなどが挙げられる。
前記粘着付与剤は、主に前記粘着基剤(好ましくはゴム系粘着基剤)の粘着性を高めることを目的として配合される。このような粘着付与剤としては、例えば、石油系樹脂、ロジン系樹脂、テルペン系樹脂、フェノール系樹脂、及びキシレン系樹脂が挙げられる。前記粘着付与剤としては、これらのうちの1種であっても2種以上の組み合わせであってもよいが、本発明に係る粘着剤層が前記粘着基剤として前記ゴム系粘着基剤を含有する場合には、石油系樹脂がさらに含有されることが好ましい。
前記吸収促進剤としては、薬物の経皮吸収促進作用(皮膚透過促進作用)を有するものが挙げられ、例えば、脂肪族アルコール、炭素数6~20の脂肪酸、脂肪酸エステル、脂肪酸アミド、又は脂肪族アルコールエーテル;芳香族有機酸;芳香族アルコール;芳香族有機酸エステル又はエーテル;POE硬化ヒマシ油類;レシチン類;リン脂質;大豆油誘導体;トリアセチンが挙げられる。前記吸収促進剤としては、これらのうちの1種であっても2種以上の組み合わせであってもよいが、ロチゴチン及び/又はその薬学的に許容される塩のより優れた皮膚透過性の観点からは、脂肪族アルコールが前記粘着剤層中にさらに含有されることが好ましい。
前記皮膚刺激低減剤としては、薬物や安定化剤が皮膚に与える刺激の低減作用を有するものが挙げられ、例えば、コレステロールが挙げられる。前記皮膚刺激低減剤としては、2種以上の組み合わせであってもよい。
〔吸着剤〕
前記吸着剤としては、吸湿性を有する無機及び/又は有機の物質が挙げられ、より具体的には、タルク、カオリン、ベントナイト等の鉱物;フュームドシリカ(アエロジル(登録商標)等)、含水シリカ等のケイ素化合物;酸化亜鉛、乾燥水酸化アルミニウムゲル等の金属化合物;乳酸、酢酸等の弱酸;デキストリン等の糖;ポリビニルピロリドン(非架橋PVP)、架橋ポリビニルピロリドン(「クロスポビドン」、「架橋PVP」ともいう)、アミノアルキルメタクリレートコポリマー、カルボキシビニルポリマー及びブチルメタクリレートメチルメタクリレートコポリマー等の高分子ポリマーが挙げられる。前記吸着剤としては、これらのうちの1種であっても2種以上の組み合わせであってもよいが、ロチゴチン及び/又はその薬学的に許容される塩のより優れた経時安定性の観点からは、架橋ポリビニルピロリドンが前記粘着剤層中にさらに含有されることが好ましい。
前記脱塩剤は、主に塩基性薬物の全部又は一部を遊離体に変換することを目的として配合される。このような脱塩剤としては、特に限定はされないが、例えば、前記薬物として薬物の酸付加塩を配合して遊離体の薬物を含有する製剤を得る場合には、塩基性物質であることが好ましく、金属イオン含有脱塩剤、塩基性窒素原子含有脱塩剤であることがより好ましい。前記金属イオン含有脱塩剤としては、酢酸ナトリウム(無水酢酸ナトリウムを含む)、水酸化ナトリウム、水酸化カリウム、水酸化マグネシウム、水酸化カルシウム、炭酸水素ナトリウム、炭酸水素カリウム、クエン酸ナトリウム、乳酸ナトリウム等が挙げられ、これらのうちの1種であっても2種以上の組み合わせであってもよい。なお、本発明に係る粘着剤層としては、前記塩基性薬物及び前記脱塩剤に由来する化合物(例えば、塩酸ロチゴチンと酢酸ナトリウムとを組み合わせた場合には、塩化ナトリウム)をさらに含有していてもよい。本発明において、これらの脱塩剤、並びに、塩基性薬物及び脱塩剤に由来する化合物が前記粘着剤層中にさらに含有される場合、その含有量としては、2種以上である場合には合計で、前記粘着剤層の全質量に対して10質量%以下であることが好ましい。
前記可塑剤は、主に前記粘着剤層の粘着物性、前記粘着剤層の製造における流動特性、前記薬物の経皮吸収特性等を調整することを目的として配合される。このような可塑剤としては、例えば、シリコーンオイル;パラフィン系プロセスオイル、ナフテン系プロセスオイル及び芳香族系プロセスオイル等の石油系オイル;スクワラン、スクワレン;オリーブ油、ツバキ油、ひまし油、トール油及びラッカセイ油等の植物系オイル;ジブチルフタレート及びジオクチルフタレート等の二塩基酸エステル;液状ポリブテン及び液状イソプレンゴム等の液状ゴム;ジエチレングリコール、ポリエチレングリコール、プロピレングリコール、ジプロピレングリコール等が挙げられる。前記可塑剤としては、これらのうちの1種であっても2種以上の組み合わせであってもよいが、シリコーンオイル、流動パラフィン、及び液状ポリブテンからなる群から選択される少なくとも1種であることが特に好ましい。
前記溶解剤としては、例えば、酢酸等の有機酸、界面活性剤が挙げられ、これらのうちの1種であっても2種以上の組み合わせであってもよい。また、前記充填剤は主に前記粘着剤層の粘着力を調整することを目的として配合され、該充填剤としては、例えば、水酸化アルミニウム、炭酸カルシウム、炭酸マグネシウム;ケイ酸アルミニウムやケイ酸マグネシウム等のケイ酸塩;ケイ酸、硫酸バリウム、硫酸カルシウム、亜鉛酸カルシウム、酸化亜鉛、酸化チタンが挙げられ、これらのうちの1種であっても2種以上の組み合わせであってもよい。
前記保存剤としては、例えば、パラオキシ安息香酸誘導体、ベンジルアルコール、フェノール、クレゾール等が挙げられ、これらのうちの1種であっても2種以上の組み合わせであってもよい。
支持体層及び粘着剤層を備え、かつ、前記粘着剤層がロチゴチン及びロチゴチンの薬学的に許容される塩からなる群から選択される少なくとも1種と、粘着基剤と、を含有するロチゴチン含有貼付剤において、前記ロチゴチン及び/又はその薬学的に許容される塩を安定化する方法であり、
前記粘着剤層に、チオグリコール酸及びチオグリコール酸の薬学的に許容される塩からなる群から選択される少なくとも1種をさらに含有させる工程を含む、
ロチゴチン安定化方法も提供する。
先ず、ヘアレスマウス胴体部の皮膚を剥離して脂肪を除去した脂肪除去皮膚片の角質層側に1.0cm2の正方形に切断して剥離ライナーを除去した貼付剤を貼付して試験サンプルとした。これを真皮側がレセプター液に接するようにフロースルー型拡散セルにセットし、前記セルにレセプター溶液(リン酸緩衝生理食塩水)を満たした。次いで、レセプター溶液が32℃に保温されるように、暖めた循環水を外周部に循環させながら約5mL/hrの流速でレセプター溶液を送液し、2時間毎に24時間までレセプター溶液を採取した。採取したレセプター溶液中のロチゴチン濃度を高速液体クロマトグラフ法により測定し、それぞれ、次式:
ロチゴチン皮膚透過量(μg/cm2)={レセプター溶液中のロチゴチン濃度(μg/mL)×流量(mL)}/貼付剤面積(cm2)
により、粘着剤層の単位面積あたりにおけるロチゴチン皮膚透過量を算出し、1時間あたりの皮膚透過量(皮膚透過速度(μg/cm2/hr))を求めた。測定はそれぞれ2つの試験サンプルについて行い、各皮膚透過速度の24時間内における最大値の平均値を最大皮膚透過速度(Jmax)とした。
各実施例及び比較例で得られた貼付剤をアルミラミネート製袋に封入して試験サンプルとし、これを60℃において2週間保存した。保存後の貼付剤について、下記の(1)又は(2)の方法でロチゴチン分解物の発生率[%]を算出し、安定性評価の値とした。なお、下記の(1)の方法と(2)の方法とによれば、互いに同等の結果が得られる。
先ず、保存後の貼付剤から剥離ライナーを除き、粘着剤層をテトラヒドロフラン5mLに浸漬して溶解させた溶液に、希釈溶液(0.2%リン酸緩衝液とアセトニトリルとの混液(50:50(v:v)))を全量が25mLとなるように加えて振とうし、フィルターで濾過したものを試料溶液とした。また、予め既知濃度のロチゴチンを前記希釈溶液に溶解させ、標準溶液とした。
カラム:TSKgel ODS-80TsQA(4.6mm I.D.×150mm)、5μm
移動相液:10mMドデシル硫酸ナトリウムを含む0.2%リン酸緩衝液とアセトニトリルとの混液(50:50(v:v))
検出波長:225nm
カラム温度:40℃
流速:0.7mL/分
で、試料溶液中の、ロチゴチン分解物である7,8-ジヒドロナフトール(7,8-Dihydro Naphthol)及び脱プロピルロチゴチン(Despropyl RTN)のクロマトグラムを得た。
先ず、保存後の貼付剤から剥離ライナーを除き、粘着剤層をテトラヒドロフラン5mLに浸漬して溶解させた溶液に、希釈溶液(10mMリン酸水素二カリウム及び0.067%トリメチルアミンを含むリン酸緩衝液(pH5.5)と、アセトニトリルとの混液(60:40(v:v)))を全量が25mLとなるように加えて振とうし、フィルターで濾過したものを試料溶液とした。また、予め既知濃度のロチゴチンを前記希釈溶液に溶解させ、標準溶液とした。
カラム:ZORBAX SB-C18(4.6mm I.D.×250mm)、5μm
移動相液:10mMリン酸水素二カリウム及び0.067%トリメチルアミンを含むリン酸緩衝液(pH5.5)(A液)、アセトニトリル(B液)を;A液:B液=90:10(0~20分)→20:80(90~100分)→90:10(105~125分)
検出波長:225nm
カラム温度:40℃
流速:1mL/分
で、試料溶液中の、ロチゴチン分解物である7,8-ジヒドロナフトール(7,8-Dihydro Naphthol)及び脱プロピルロチゴチン(Despropyl RTN)のクロマトグラムを得た。
先ず、ロチゴチン(遊離体(フリー体))9質量部、スチレン-イソプレン-スチレンブロック共重合体12.21質量部、ポリイソブチレン5.23質量部、脂環族飽和炭化水素樹脂44.46質量部、流動パラフィン13.95質量部、オクチルドデカノール5質量部、及び架橋ポリビニルピロリドン10質量部に、チオグリコール酸ナトリウム0.15質量部を添加し、適量の溶媒(無水エタノール及びトルエン)に加えて混合し、粘着剤層組成物を得た。次いで、得られた粘着剤層組成物を剥離ライナー(離型処理が施されたポリエチレンテレフタレート製フィルム)上に展延し、溶媒を乾燥除去して、単位面積あたり質量が50g/m2となるように粘着剤層を形成した。得られた粘着剤層の前記剥離ライナーと反対の面上に支持体層(ポリエチレンテレフタレート製フィルム)を積層し、支持体層/粘着剤層/剥離ライナーの順に積層された貼付剤を得た。
粘着剤層組成物の組成(溶媒を除く組成)を下記の表1に示す組成となるようにしたこと以外は実施例1と同様にして、各貼付剤を得た。
粘着剤層組成物の組成(溶媒を除く組成)を下記の表2に示す組成となるようにしたこと以外は実施例1と同様にして、各貼付剤を得た。
粘着剤層組成物の組成(溶媒を除く組成)を下記の表3に示す組成となるようにしたこと以外は実施例1と同様にして、各貼付剤を得た。表3において、シリコーン系粘着基剤としては、BIO-PSA-4202(デュポン・東レ・スペシャリティ・マテリアル株式会社)を用い、アクリル系粘着基剤としては、Duro-Tak 87-900A(ヘンケル社製)を用いた。
粘着剤層組成物の組成(溶媒を除く組成)を下記の表4に示す組成となるようにしたこと以外は実施例1と同様にして、各貼付剤を得た。
Claims (6)
- 支持体層及び粘着剤層を備え、前記粘着剤層がロチゴチン及びロチゴチンの薬学的に許容される塩からなる群から選択される少なくとも1種を含有するロチゴチン含有貼付剤であり、
前記粘着剤層が、チオグリコール酸及びチオグリコール酸の薬学的に許容される塩からなる群から選択される少なくとも1種と、粘着基剤と、をさらに含有する
ロチゴチン含有貼付剤。 - 前記粘着剤層におけるチオグリコール酸及びチオグリコール酸の薬学的に許容される塩からなる群から選択される少なくとも1種の含有量が、チオグリコール酸ナトリウム換算で、前記粘着剤層の全質量に対して0.03~3質量%である、請求項1に記載のロチゴチン含有貼付剤。
- 前記粘着剤層が没食子酸プロピルをさらに含有する、請求項1又は2に記載のロチゴチン含有貼付剤。
- 前記粘着剤層における没食子酸プロピルの含有量が、前記粘着剤層の全質量に対して0.05~1質量%である、請求項3に記載のロチゴチン含有貼付剤。
- 前記粘着基剤が、ゴム系粘着基剤、アクリル系粘着基剤、及びシリコーン系粘着基剤からなる群から選択される少なくとも1種である、請求項1又は2に記載のロチゴチン含有貼付剤。
- 前記粘着剤層におけるロチゴチン及びロチゴチンの薬学的に許容される塩からなる群から選択される少なくとも1種の含有量が、ロチゴチン遊離体換算で、前記粘着剤層の全質量に対して5~15質量%である、請求項1又は2に記載のロチゴチン含有貼付剤。
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