WO2009006787A1 - Composition comprenant de la rotigotine, son utilisation et timbre transdermique comprenant la composition - Google Patents

Composition comprenant de la rotigotine, son utilisation et timbre transdermique comprenant la composition Download PDF

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Publication number
WO2009006787A1
WO2009006787A1 PCT/CN2008/001267 CN2008001267W WO2009006787A1 WO 2009006787 A1 WO2009006787 A1 WO 2009006787A1 CN 2008001267 W CN2008001267 W CN 2008001267W WO 2009006787 A1 WO2009006787 A1 WO 2009006787A1
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WO
WIPO (PCT)
Prior art keywords
rotigotine
sensitive adhesive
eudragit
composition
weight ratio
Prior art date
Application number
PCT/CN2008/001267
Other languages
English (en)
French (fr)
Inventor
Shuming Wang
Huiyong Xue
Li Wang
Enhong Zhang
Hongjun Lian
Xiaoyan Shi
Guohua Chi
Yucheng Lu
Xiquan Liu
Li Song
Xuying Zhong
Hongguang Du
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Beijing Kangbeide Pharmaceutical Technology Development Co., Ltd.
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.)
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Publication date
Application filed by Beijing Kangbeide Pharmaceutical Technology Development Co., Ltd. filed Critical Beijing Kangbeide Pharmaceutical Technology Development Co., Ltd.
Priority to JP2010515339A priority Critical patent/JP4883220B2/ja
Priority to DK08773014.9T priority patent/DK2177217T3/en
Priority to EP08773014.9A priority patent/EP2177217B1/en
Priority to US12/667,915 priority patent/US9265752B2/en
Priority to ES08773014.9T priority patent/ES2655705T3/es
Publication of WO2009006787A1 publication Critical patent/WO2009006787A1/zh
Priority to US14/993,190 priority patent/US20160120822A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/70Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
    • A61K9/7023Transdermal patches and similar drug-containing composite devices, e.g. cataplasms
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/38Heterocyclic compounds having sulfur as a ring hetero atom
    • A61K31/381Heterocyclic compounds having sulfur as a ring hetero atom having five-membered rings
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/70Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
    • A61K9/7023Transdermal patches and similar drug-containing composite devices, e.g. cataplasms
    • A61K9/703Transdermal patches and similar drug-containing composite devices, e.g. cataplasms characterised by shape or structure; Details concerning release liner or backing; Refillable patches; User-activated patches
    • A61K9/7038Transdermal patches of the drug-in-adhesive type, i.e. comprising drug in the skin-adhesive layer
    • A61K9/7046Transdermal patches of the drug-in-adhesive type, i.e. comprising drug in the skin-adhesive layer the adhesive comprising macromolecular compounds
    • A61K9/7053Transdermal patches of the drug-in-adhesive type, i.e. comprising drug in the skin-adhesive layer the adhesive comprising macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds, e.g. polyvinyl, polyisobutylene, polystyrene
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/70Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
    • A61K9/7023Transdermal patches and similar drug-containing composite devices, e.g. cataplasms
    • A61K9/703Transdermal patches and similar drug-containing composite devices, e.g. cataplasms characterised by shape or structure; Details concerning release liner or backing; Refillable patches; User-activated patches
    • A61K9/7038Transdermal patches of the drug-in-adhesive type, i.e. comprising drug in the skin-adhesive layer
    • A61K9/7046Transdermal patches of the drug-in-adhesive type, i.e. comprising drug in the skin-adhesive layer the adhesive comprising macromolecular compounds
    • A61K9/7053Transdermal patches of the drug-in-adhesive type, i.e. comprising drug in the skin-adhesive layer the adhesive comprising macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds, e.g. polyvinyl, polyisobutylene, polystyrene
    • A61K9/7061Polyacrylates
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/70Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
    • A61K9/7023Transdermal patches and similar drug-containing composite devices, e.g. cataplasms
    • A61K9/703Transdermal patches and similar drug-containing composite devices, e.g. cataplasms characterised by shape or structure; Details concerning release liner or backing; Refillable patches; User-activated patches
    • A61K9/7038Transdermal patches of the drug-in-adhesive type, i.e. comprising drug in the skin-adhesive layer
    • A61K9/7046Transdermal patches of the drug-in-adhesive type, i.e. comprising drug in the skin-adhesive layer the adhesive comprising macromolecular compounds
    • A61K9/7069Transdermal patches of the drug-in-adhesive type, i.e. comprising drug in the skin-adhesive layer the adhesive comprising macromolecular compounds obtained otherwise than by reactions only involving carbon to carbon unsaturated bonds, e.g. polysiloxane, polyesters, polyurethane, polyethylene oxide
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00Drugs for disorders of the nervous system
    • A61P25/14Drugs for disorders of the nervous system for treating abnormal movements, e.g. chorea, dyskinesia
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00Drugs for disorders of the nervous system
    • A61P25/14Drugs for disorders of the nervous system for treating abnormal movements, e.g. chorea, dyskinesia
    • A61P25/16Anti-Parkinson drugs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00Drugs for disorders of the nervous system
    • A61P25/18Antipsychotics, i.e. neuroleptics; Drugs for mania or schizophrenia
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00Drugs for disorders of the nervous system
    • A61P25/24Antidepressants

Definitions

  • composition containing rotigotine and application thereof, and transdermal patch containing the same
  • the present invention relates to a rotigotine-containing composition and its use in the preparation of a transdermal patch containing rotigotine based on an acrylic pressure sensitive adhesive and a silicone pressure sensitive adhesive A mixed matrix of two types of binders and polyvinylpyrrolidone combined in a specific weight ratio.
  • the invention further relates to a modified rotigotine transdermal patch comprising the composition.
  • the patch has improved superior performance in terms of dissolution, release and initial drug permeability of rotigotine. Background technique
  • Rotigotine is a non-dihydroergotamine Ds/Dz/D! dopamine receptor agonist that has long been found to have a therapeutic effect on many central and psychiatric disorders.
  • Rotigotine which is currently known, has a good effect on the treatment or symptom improvement of Parkinson's disease, leg hyperactivity syndrome, schizophrenia, depression, and the like, and preventive treatment of Parkinson's disease (WO2005/063237).
  • its therapeutic and symptom-improving effects on Parkinson's disease have been demonstrated by numerous animal model studies and clinical trials ( Neurology, Vol.65 Suppll : S3 - S5/movement disorders Vol.
  • Rotigotine was originally formulated as an oral preparation, but it was later found to have an excessive clearance rate and a relatively short expiration date after oral administration. It is difficult to practically achieve a blood concentration that produces a therapeutic effect or requires frequent administration (Neurology, Vol. 65 Suppll: S3 - S5). It has been attempted to make a transdermal patch.
  • W099/49852 describes a transdermal delivery system containing rotigotine based on acrylate or siloxane.
  • the binders used in this system are acrylates or siloxanes, which together with the active drug make up a system using a single binder.
  • a system composed of acrylate as a binder has a low drug release rate
  • a system composed of a siloxane as a binder has a small drug loading amount, and the initial release amount of the drug is low.
  • WO 2002/089778 describes the use of a silicone-based transdermal therapeutic system for the preparation of a medicament for anti-Parkinson's disease.
  • the transdermal therapeutic system contains rotigotine as an active ingredient.
  • the drug release rate of the system is low, especially when the effective dose is too long, which causes two problems: 1.
  • the transdermal patch must be frequently replaced, ⁇ If you need to change it 24 hours or less, This is not conducive to the advantages of the patch for the convenience of the patient; 2.
  • the transdermal patch has a relatively low initial permeability, which results in a long period of time from application of the patch to exerting a drug effect, which often causes the patient to control the condition. Delay.
  • the present inventors have intensively studied the inherent disadvantages of the existing rotigotine transdermal drug delivery system. Through a large number of experiments, it was found that a mixed matrix system based on a combination of an acrylic pressure-sensitive adhesive and a silicone pressure-sensitive adhesive and a specific content of polyethylpyrrolidone can sufficiently dissolve and release an effective drug. The amount of rotigotine, and can increase the initial drug permeability of rotigotine. Thereby improving the release properties of the rotigotine transdermal delivery system. The present invention has thus been completed. Summary of the invention
  • the present invention provides a composition comprising rotigotine, which comprises, by weight of the composition,
  • the weight ratio of the acrylic pressure-sensitive adhesive in the mixed system is about 1 - 25%
  • the weight ratio of the silicone pressure-sensitive adhesive in the mixed system is about 65 - 98%
  • the weight ratio of polyvinylpyrrolidone in the mixed system is about 1 - 10%, and the content of rotigotine is about 1 - 40% based on the total weight of the composition.
  • the invention provides the use of the rotigotine-containing composition for the preparation of a transdermal patch comprising rotigotine.
  • the present invention provides a transdermal patch comprising rotigotine, characterized in that the drug reservoir layer is based on two types of adhesives comprising an acrylic pressure sensitive adhesive and a silicone pressure sensitive adhesive. And a mixed system of polyvinylpyrrolidone in a specific weight ratio, wherein: (1) the weight ratio of the acrylic pressure-sensitive adhesive in the mixed system is about 1-25%,
  • the weight ratio of the silicone-based pressure-sensitive adhesive in the mixed system is about 65 - 98%
  • the weight ratio of polyvinylpyrrolidone in the mixed system is about 1 - 10%, and the content of rotigotine is about 1 - 40% based on the total weight of the drug reservoir layer.
  • the transdermal patch containing rotigotine of the present invention has a composite layer structure comprising a backing support layer, a drug reservoir layer containing the active ingredient rotigotine, and a drug reservoir layer Protective layer, characterized in that the drug reservoir layer is based on acrylic acid A pressure-sensitive adhesive and a silicone pressure-sensitive adhesive, a combination of two types of binders and polyvinylpyrrolidone in a specific weight ratio, wherein:
  • the weight ratio of the acrylic pressure-sensitive adhesive in the mixed system is about 1 - 25%
  • the weight ratio of the silicone pressure-sensitive adhesive in the mixed system is about 65 - 98%
  • the weight ratio of polyvinylpyrrolidone in the mixed system is about 1 - 10%, and based on the drug storage
  • the total weight of the reservoir layer is about 1 to 40% based on the total weight of the thiotepatin.
  • the weight ratio of the acrylic pressure-sensitive adhesive in the mixed system is preferably from about 3 to 22%, more preferably from about 4 to 20%, particularly preferably from about 5 - 19%, particularly preferably about 6 to 12.5%.
  • the weight ratio of the silicone pressure-sensitive adhesive in the mixed system is preferably from about 70 to 96%, more preferably from about 75 to 95%, particularly preferably about It is from 79 to 94%, particularly preferably from about 86.5 to 93%.
  • the weight ratio of polyvinylpyrrolidone in the mixed system is preferably from about 1 to 8%, more preferably from about 1 to 5%, particularly preferably from about 1 to 2%. It is particularly preferably about 1-1.5%.
  • the content of rotigotine is preferably from about 3 to 20%, more preferably from about 5 to 15%, particularly preferably about 8, based on the total weight of the composition. - 11%.
  • the rotigotine-containing composition of the present invention may also optionally comprise excipients commonly used in transdermal delivery systems, such as transdermal penetration enhancers, antioxidants and the like.
  • the rotigotine-containing composition of the present invention preferably comprises a transdermal permeation enhancer, and the transdermal permeation enhancer may be present in an amount of from about 0% to about 15%, preferably from about 2% to about 13%, based on the total weight of the composition. It is preferably from about 5 to 11%, particularly preferably from 8 to 10%.
  • the rotigotine-containing composition of the present invention may contain an antioxidant in an amount of from about 0% to about 0.1% by weight based on the total weight of the composition.
  • the composition comprises from about 70 to 95%, preferably from about 75 to 90%, by weight of the total composition of the matrix, wherein the acrylic pressure sensitive
  • the weight ratio of the binder in the mixed system is about 3 to 22%, preferably about 4 to 20%; the weight ratio of the silicone pressure-sensitive adhesive in the mixed system is about 70 to 96%.
  • the weight ratio of polyvinylpyrrolidone in said mixed system is from about 1 to 8%, preferably from about 1 to 5%; and the content of rotigotine is based on the total weight of the composition , about 3-20%, preferably about 5-15%, and containing about 0-15 %, preferably about 2 - 13% of a percutaneous penetration enhancer.
  • the composition comprises from about 75 to 90%, especially from about 79 to 84%, of the matrix mixing system, based on the total weight of the composition, wherein the acrylic
  • the weight ratio of the pressure sensitive adhesive in the mixed system is about 5-19%, especially about 6-12.5%; the weight ratio of the silicone pressure sensitive adhesive in the mixed system is about 79.
  • the total weight of the substance is from about 5 to 15%, especially from about 8 to 11%; and contains from about 5 to 11%, especially from 8 to 10%, per unit of permeation based on the total weight of the composition. Promoter.
  • the acrylic pressure-sensitive adhesive described in the present invention means a combination of an acrylic pressure-sensitive adhesive or an acrylic pressure-sensitive adhesive and an Eudragit-based acrylic resin.
  • the "acrylic pressure sensitive adhesive” refers to a polymer material which is known in the art and which is obtained by copolymerizing acrylic acid and its derivatives, having a saturated hydrocarbon main chain and an ester side chain, by changing the comonomer. And a side chain group can obtain a viscous acrylic pressure sensitive adhesive.
  • Commonly used monomers are: soft monomer, used to improve pressure-sensitive adhesive adhesion, such as ethyl acrylate, 2-ethylhexyl acrylate, isooctyl acrylate, butyl acrylate, etc.; hard monomer, used to improve Pressure-sensitive adhesive cohesive force, such as vinyl acetate, decyl acrylate, styrene, acrylonitrile, methacrylate, such as decyl propyl acrylate, ethyl methacrylate, decyl acrylate Ester, etc.; functional group monomer, used to produce chemical crosslinks, such as (fluorenyl) propyl benzoate, (mercapto) acrylamide, (fluorenyl).
  • the acrylic pressure-sensitive adhesive used in the present invention is particularly preferably copolymerized from butyl acrylate, isooctyl acrylate, vinyl acetate, acrylamide and ⁇ -methacrylic acid monomers, in particular, for example, CN1640500A (Beijing Kangbide Medicine) Technical Development Co., Ltd.)
  • CN1640500A is incorporated herein by reference. :
  • Non-limiting examples of the "Eudragit-based acrylic resin” are Eudragit® L 100, Eudragit® SI 00, Eudragit® RL 100, Eudragit® manufactured by R0hm, Germany. RS100, Eudragir E100, Eudragir L100-55, Eudragir E PO, Eudragir RL PO, Eudragit® RS PO, etc., and Eudragit I, II, III, IV produced by the Lianagen Iodine Plant in Jiangsu.
  • the acrylic pressure-sensitive adhesive is preferably a mixture of an acrylic pressure sensitive adhesive and an Eudragit-type propylene fondant resin, more preferably referred to as CN1640500A (Beijing Kangbide Pharmaceutical Technology Development Co., Ltd.).
  • Acrylic based adhesive composition of acrylic pressure sensitive adhesive and Eudragit® E100 (see adhesive composition used in the examples in Table 4 on page 24 of CN1640500A), ie PAS-10-K and different percentages
  • the adhesive composition composed of Eudragit® E100, particularly preferably the ratio of PAS-10-K to Eudragit® E100 is 9:1.
  • the siloxane pressure-sensitive adhesive described in the present invention is a one prepared by dissolving a low-viscosity dimethylsiloxane polymer (12 000 ⁇ 15 OOO cp) and a siloxane resin in a suitable organic solvent.
  • Pressure sensitive adhesives The ratio of resin to polymer and the content of silanol groups are important parameters determining the properties of silicone pressure sensitive adhesives (Sobieski, et al., "Silocone Pressure Sensitive Ashesives," Handbok of Pressure Sensitive Technology, 2nd ed.
  • the silicone based pressure-sensitive adhesive is preferably made commercially available include Dow corning Corporation sold under the tradename BIO - PSA ® 4600 Series, BIO - PSA® 4500 Series, BIO - PSA® 4400 Series, BIO - PSA® 4300, BIO - PSA® 4200 Series and BIO - PSA® 4100 Series Silicone Pressure Sensitive Adhesives. More preferred are anti-amine silicone pressure sensitive adhesives BIO-PSA® 4300 series or BIO-PSA® 4200 series.
  • the polyvinylpyrrolidone used in the present invention can be used as a crystallization inhibitor in a transdermal preparation.
  • Polyvinylpyrrolidone, or "PVP” is a nonionic water-soluble polymer compound obtained by polymerizing N-acetylpyrrolidone under certain conditions.
  • PVPs include those sold under the trade name Kollidond by BASF, Germany.
  • Kollidond 17PF, 25, 30 and 90 are preferably used in the present invention, and Kollidond 30 and Kollidond 90 are particularly preferable.
  • the inventors have found through extensive experiments that a matrix system in which an acrylic pressure-sensitive adhesive and a silicone pressure-sensitive adhesive are mixed in a certain ratio has a marked improvement in solubility and skin permeability of the drug, and then The addition of low levels of polyvinylpyrrolidone further increases the loading and penetration of the drug without affecting the mechanical properties of the patch.
  • the weight ratio of the acrylic pressure-sensitive adhesive in the matrix system is increased, although the solubility of the drug can be increased, and the drug is increased. The initial diffusion rate of the substance, but it will reduce the sustained release ability of the drug in the system, and eventually lead to more drug residues after the application of the patch.
  • the weight ratio of the acrylic pressure-sensitive adhesive in the mixed system is about 1 - 25%, preferably about 3 - 22%, more preferably about 4 to 20%, particularly preferably about 5 to 19%, particularly preferably about 6 to 12.5%.
  • the weight ratio of the silicone pressure-sensitive adhesive in the mixed system is about 65 to 98%, preferably about 70 to 96%, more preferably It is about 75 to 95%, particularly preferably about 79 to 94%, and particularly preferably about 86.5 to 93%.
  • the weight ratio of polyvinylpyrrolidone in the mixed system is about 1 - 10%, preferably about 1 - 8%, more preferably about 1 - 5%. It is particularly preferably about 1-2%, particularly preferably about 1-1.5%.
  • the content of rotigotine is from about 1 to 40%, preferably from about 3 to 20%, more preferably from about 3 to 20%, based on the total weight of the drug reservoir layer. It is from 5 to 15%, particularly preferably from about 8 to 11%.
  • the mixed system accounts for 60-99%, preferably 70-95%, more preferably 75-90%, particularly preferably 79-% by weight of the drug reservoir layer. 84%.
  • the drug reservoir layer may optionally comprise excipients commonly used in transdermal drug delivery systems, such as transdermal penetration enhancers, antioxidants, etc., to aid in improving the performance of the patch.
  • the transdermal patch of the present invention preferably comprises a transdermal permeation enhancer, and the transdermal permeation enhancer may be present in an amount of from about 0 to 15%, preferably from about 2 to 13%, more preferably, based on the total weight of the drug reservoir layer. It is about 5 - 11%, particularly preferably 8 - 10%.
  • the transdermal patch of the present invention preferably comprises an antioxidant, and the antioxidant may be present in an amount of from about 0% to about 0.1% by weight based on the total weight of the drug reservoir layer.
  • the drug reservoir layer of the transdermal patch comprising, based on the total weight of the drug reservoir layer, about 70-95%, preferably about 75-90%, wherein the weight of the acrylic pressure sensitive adhesive in the mixed system a ratio of about 3 to 22%, preferably about 4 to 20%; a weight ratio of the silicone pressure-sensitive adhesive in the mixed system of about 70 to 96%, preferably about 75 to 95%;
  • the weight ratio of pyrrolidone in the mixed system is about 1 - 8%, preferably about 1 - 5%;
  • the content of rotigotine is about 3 - 20% based on the total weight of the drug reservoir layer, preferably It is about 5 - 15%, and comprises, based on the total weight of the drug reservoir layer, from 0 to 15%, preferably from about 2 to 13%, of a percutaneous penetration enhancer.
  • the drug reservoir layer of the transdermal patch comprises from about 75 to 90%, especially from about 79 to 84%, based on the total weight of the drug reservoir layer.
  • the matrix mixing system wherein the weight ratio of the acrylic pressure sensitive adhesive in the mixed system is about 5 - 19%, especially about 6 - 12.5%; the silicone pressure sensitive adhesive is The weight ratio in the mixed system is about 79-94%, especially about 86.5 - 93%; the weight ratio of polyvinylpyrrolidone in the mixed system is about 1-2%, especially about 1 - 1.5 %; the content of rotigotine, based on the total weight of the drug reservoir layer, is about 5 - 15%, especially about 8 - 11%; and contains, based on the total weight of the drug reservoir layer, 5 - 11%, especially 8-10% of percutaneous penetration enhancers.
  • the percutaneous penetration enhancer which can be used in the present invention may be selected from (1) a surfactant such as Tween, Span, sodium lauryl sulfate, sodium lauryl sulfate, etc.; (2) Organic solvents, including alcohols , polyols, esters, disulfoxides and the like, specific examples are ethyl acetate, C; diethyl alcohol, ethylene glycol, glycerol, dimethyl sulfoxide, mercapto methyl sulfoxide (3) fatty acids, fatty alcohols and fatty acid esters, such as oleic acid, lactic acid, myristic acid, lauric acid, isopropyl myristate, etc.; (4) azone compounds and pyrrolidone derivatives, such as N - mercaptopyrrolidone, 1,5-dimercaptopyrrolidone, 5-carboxypyrrolidone, etc.; (5) horny moisturizing and softening agents,
  • a suitable antioxidant can be selected from inorganic and organic antioxidants and determined by conventional stability tests in the art.
  • the antioxidant may be selected, for example, from vitamin E, ascorbyl palmitate, sodium metasulfite or a mixture thereof, preferably vitamin E, ascorbyl palmitate. .
  • the active drug rotigotine used in the present invention may be rotigotine free base or a pharmaceutically acceptable salt of rotigotine, such as rotigotine hydrochloride, rotigotine sulfate, rotigotine Nitrate or rotigotine succinate, etc., preferably rotigotine free base.
  • the backing support layer is composed of a backing material such as aluminum foil, polyethylene terephthalate, polyethylene or nonwoven fabric which is well known to those skilled in the art.
  • the protective layer covering the drug reservoir layer is composed of a protective material well known to those skilled in the art, such as polyester, polyvinyl chloride, polyethylene terephthalate, and the like.
  • the film is either subjected to a conventional release coating treatment, including coating a silicone resin or a fluororesin or the like on the surface of the film directly in contact with the drug reservoir layer.
  • the protective layer of the transdermal patch of the present invention is preferably a polyester film whose surface is coated with a fluororesin.
  • the transdermal patch of the present invention can be formed into various shapes and sizes as needed, and its surface area is preferably 1.0 - 150 cm 2 : its finished product specification is preferably 4.5 mg rotigotine/10 cm 2 , 9 mg rotigotine / 20 cm 2 , 13.5 mg rotigotine / 30 cm 2 , 18 mg rotigotine / 40 cm 2 .
  • the drug reservoir layer of the transdermal patch containing rotigotine of the present invention may have a thickness of from 20 ⁇ m to 80 ⁇ m, preferably from 40 to 60 ⁇ m.
  • the drug reservoir layer of the transdermal patch of rotigotine of the present invention may be a single layer or a multilayer composite form well known in the art, and the structure of such a transdermal patch may include a backing support layer, high The active drug layer and/or the middle active drug layer, and the low active drug layer, and the protective layer.
  • the rotigotine-containing composition of the present invention can be prepared by techniques known in the art, such as by formulating a formulation amount of polyvinylpyrrolidone in a suitable container, adding an appropriate amount of an antioxidant (if contained) of an ethanol solution, and stirring to agglomerate The vinylpyrrolidone is dissolved.
  • a formula amount of the drug rotigotine, a silicone pressure-sensitive adhesive, an acrylic pressure-sensitive adhesive (hereinafter, prepared according to the embodiment of CN1640500A, page 20-21) is further weighed.
  • a method for preparing an acrylic pressure-sensitive adhesive and an optional percutaneous permeation enhancer by adding a suitable amount of a solvent such as ethyl acetate to acrylamide or a hydrazine thereof, a method of preparing a (meth) acrylate copolymer of a hydrazine substituted monomer; A certain volume, stirring to fully dissolve the components. Finally, a composition containing rotigotine was prepared by adding an appropriate amount of ethanol and sonicating for 30 minutes to completely dissolve the polyvinylpyrrolidone.
  • a solvent such as ethyl acetate
  • a method of preparing a (meth) acrylate copolymer of a hydrazine substituted monomer A certain volume, stirring to fully dissolve the components.
  • a composition containing rotigotine was prepared by adding an appropriate amount of ethanol and sonicating for 30 minutes to completely dissolve the polyvinylpyrrolidone.
  • transdermal patches of the present invention can be prepared using techniques known in the art, including, for example, the steps:
  • the drug reservoir layer is a multilayer composite form of the present invention.
  • the transdermal patch can be prepared according to conventional preparation methods known in the art. For example, first, a matrix containing the same or different active drug concentrations is prepared, and then each substrate is separately obtained by a doctor blade method.
  • the present invention provides a transdermal patch of rotigotine which is sufficient to dissolve and release an effective amount.
  • the patch increases the initial permeability of rotigotine. From this feature, it is expected that the rotigotine transdermal patch of the present invention can exhibit a shorter onset time in clinical applications.
  • Figure 1 shows the cumulative transdermal delivery of rotigotine in vitro for 1 - 72 hours in a transdermal patch of Example 1 (present invention), NEUPRO® (Comparative Example 1) and Comparative Example 2-5 ( ⁇ g/cm) 2 ) Curve.
  • the prepared glue is applied to a flat polyester film (SCOTCHPAK® 1 109 ) backing material at a certain thickness to prepare a drug reservoir layer, and then dried at 85 ° C for 2-3 hours to make it After drying, the thickness is about 40 ⁇ m.
  • the fluorine-coated polyester film (SCOTCHPAK® 1022) is then coated on the drug reservoir layer, and finally punched into a patch of a certain area and shape to prepare the transdermal patch of the present invention.
  • the patch had a rotigotine drug content of about 0.45 mg/cm 2 , and the content (parts by weight) of each component is shown in Table 1.
  • Example 4 - 8 The patch of Example 4-8 was prepared by the method of Example 1, and the components and contents (parts by weight) of each patch drug reservoir layer are shown in Table 2. Comparative example 1
  • the specific formulation of each patch drug reservoir layer is shown in Table 1. Determination of rotigotine release in transdermal patches
  • Diffusion medium pH 6.2 phosphate buffer
  • Example 1 in accordance with the requirements of the present invention has a higher transdermal release than the NEUPRO® and other comparative examples, and exhibits zero-order release characteristics;
  • the transdermal patch of the present invention has a significantly increased drug permeability during the first 12 hours of diffusion compared to NEUPRO® (Comparative Example 1), meaning It works faster.
  • the transdermal patch of the present invention exhibits a unique advantage in the transdermal rate of roticotin compared to the patch of Comparative Example 2-4, and has a longer lasting and uniform release. Performance.

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含罗替戈汀的组合物及其应用以及含该组合物的透皮贴剂 技术领域
本发明涉及含罗替戈汀的组合物及其在制备含罗替戈汀的透皮贴 剂方面的应用, 该组合物基于由丙烯酸类压敏粘合剂和硅氧烷压敏粘 合剂两类粘合剂及聚乙烯吡咯烷酮按特定重量比组合而构成的混合基 质。 本发明还涉及含该组合物的改良罗替戈汀透皮贴剂。 该贴剂在罗 替戈汀溶解、 释放及初始药物通透量方面具有改进的优良性能。 背景技术
罗替戈汀(Rotigotine )是一种非二氢麦角碱 Ds/Dz/D!多巴胺受体 激动剂, 长期的研究发现其对许多中枢神经和精神系统疾病有治疗作 用。 目前已知的罗替戈汀对帕金森氏病、 腿多动综合症、 精神分裂症、 抑郁症等的治疗或症状改善以及预防性治疗 帕金森氏病 ( WO2005/063237 ) 均有良好效果。 特别是其对帕金森氏病的治疗和 症状改善效果已经得到了大量的动物模型研究和临床实验的证明 ( Neurology, Vol.65 Suppll : S3 - S5/movement disorders Vol. 9 No.2 P147 - 154; ARCH NEUROL, Vol.60, Dec.2003: 1721 - 28 )„ 罗替戈汀 最初被制成口服制剂, 但是后来发现该品经口服后, 显示过高的清除 率和相对短的有效期, 难以达到产生治疗效果的血药浓度或者需要频 繁给药而难以实际应用 ( Neurology, Vol.65 Suppll : S3 - S5 ) 。 人们尝 试将其制成透皮贴剂。
W099/49852 描述了一种以丙烯酸酯或硅氧烷为基础的含有罗替 戈汀的透皮给药体系。 该体系所用的粘合剂为丙烯酸酯或硅氧烷, 它 们分别与活性药物组成使用单一粘合剂的系统。 其中以丙烯酸酯为粘 合剂组成的系统, 其药物释放率低; 而以硅氧烷为粘合剂所组成的系 统, 其药物装载量较小, 其产品的药物初始释放量较低。
WO2002/089778描述了一种基于硅氧烷的透皮治疗系统用于制备 抗 -帕金森氏病的药剂的用途。 该透皮治疗系统含有罗替戈汀作为活 性成分。 但是该系统的药物释放速率较低, 特别是达到有效剂量的时 间过长, 导致其存在两方面的问题: 1.为了使其达到有效的血药浓度, 该透皮贴剂必须频繁更换, 匕如 24小时甚至更短时间就需要更换一次, 这样不利于发挥贴剂方便患者使用的优点; 2.该透皮贴剂的起始通透量 相对较低, 从而导致从贴敷贴剂到发挥药效时间过长, 这样常常造成 病人控制病情的延误。
本发明人深入研究了现有的罗替戈汀透皮给药系统所存在的固有 缺点。 通过大量的实验, 发现采用基于由丙烯酸类压敏粘合剂和硅氧 烷压敏粘合剂两种粘合剂及聚乙浠吡咯烷酮按特定含量组合的混合基 质体系可充分溶解并释放有效药量的罗替戈汀, 而且可提高罗替戈汀 的初始药物通透量。 从而改善了罗替戈汀透皮给药系统的释药性能。 由此完成了本发明。 发明内容
本发明提供含罗替戈汀的组合物, 其中含有, 按组合物重量计,
60 - 99 % , 优选 70 - 95%、 更优选 75 - 90%、 特别优选 79 - 84%的由 丙烯酸类压敏粘合剂和硅氧烷压敏粘合剂两类粘合剂及聚乙烯吡咯烷 酮按特定重量比组合构成的基质混合体系, 其中
( 1 ) 丙烯酸类压敏粘合剂在混合体系中的重量比约为 1 -25%,
(2)硅氧烷压敏粘合剂在混合体系中的重量比约为 65 -98%, 和
(3) 聚乙烯吡咯烷酮在混合体系中的重量比约为 1 - 10%, 以及 基于组合物的总重量计, 罗替戈汀的含量约为 1 -40%。
另一方面, 本发明提供该含罗替戈汀的组合物在制备含罗替戈汀 的透皮贴剂方面的应用。
再一个方面, 本发明提供含罗替戈汀的透皮贴剂, 其特征在于, 其药物储库层基于由丙烯酸类压敏粘合剂和硅氧烷压敏粘合剂两类粘 合剂及聚乙烯吡咯烷酮按特定重量比组合构成的混合体系, 其中: ( 1 ) 丙烯酸类压敏粘合剂在混合体系中的重量比约为 1 -25%,
(2)硅氧烷类压敏粘合剂在混合体系中的重量比约为 65 - 98%, 和
(3) 聚乙烯吡咯烷酮在混合体系中的重量比约为 1 - 10%, 以及 基于药物储库层的总重量计, 罗替戈汀的含量约为 1 -40%。
在一个实施方案中, 本发明含罗替戈汀的透皮贴剂具有复合层结 构, 包含背衬支持层、 含有活性成分罗替戈汀的药物储库层和覆盖于 药物储库层之上的保护层, 其特征在于所述药物储库层基于由丙烯酸 类压敏粘合剂和硅氧烷压敏粘合剂两类粘合剂及聚乙烯吡咯烷酮按特 定重量比组合构成的混合体系, 其中:
( 1 ) 丙烯酸类压敏粘合剂在混合体系中的重量比约为 1 -25%,
(2)硅氧烷压敏粘合剂在混合体系中的重量比约为 65 -98%, 和 (3) 聚乙烯吡咯烷酮在混合体系中的重量比约为 1 - 10%, 以及 基于药物储库层的总重量计, 穸替戈汀的含量约为 1 -40%。
本发明含罗替戈汀的组合物中, 丙烯酸类压敏粘合剂在所述混合 体系中的重量比优选约为 3 - 22%, 更优选约为 4- 20% , 特别优选约 为 5- 19% , 尤其优选约为 6- 12.5%。
在本发明含罗替戈汀的组合物中, 硅氧烷压敏粘合剂在所述混合 体系中的重量比优选约为 70 - 96% , 更优选约为 75 - 95% , 特别优选 约为 79 - 94% , 尤其优选约为 86.5 - 93%。
在本发明含罗替戈汀的组合物中, 聚乙烯吡咯烷酮在所述混合体 系中的重量比优选约为 1 - 8%, 更优选约为 1 -5%, 特别优选约为 1 -2%, 尤其优选约为 1 - 1.5%。
在本发明含罗替戈汀的组合物中, 罗替戈汀的含量, 基于组合物 的总重量计, 优选约为 3-20%, 更优选约为 5- 15%, 特别优选约为 8 - 11%。
本发明含罗替戈汀的组合物还可任选地包含透皮给药系统中常用 的辅料, 例如经皮渗透促进剂, 抗氧化剂等。
本发明含罗替戈汀的组合物优选包含经皮渗透促进剂, 按组合物 的总重量计, 经皮渗透促进剂的含量可以约为 0- 15% , 优选约为 2- 13%, 更优选约为 5 - 11%, 特别优选为 8- 10%。
本发明含罗替戈汀的组合物可以含有抗氧化剂, 按组合物的总重 量计, 抗氧化剂的含量可以约为 0-0.1%。
根据本发明组合物的优选实施方案, 该组合物含有, 按组合物的 总重量计, 约为 70-95%、 优选约为 75 - 90%的所述基质混合体系, 其中, 丙烯酸类压敏粘合剂在所述混合体系中的重量比约为 3 -22% , 优选约为 4-20%;硅氧烷压敏粘合剂在所述混合体系中的重量比约为 70 - 96% , 优选约为 75 - 95%; 聚乙烯吡咯烷酮在所述混合体系中的 重量比约为 1 - 8%, 优选约为 1 -5%; 罗替戈汀的含量, 基于组合物 的总重量计, 约为 3-20%, 优选约为 5 - 15%, 以及含有约为 0- 15 %、 优选约为 2 - 13%的经皮渗透促进剂。
根据本发明组合物的更优选实施方案, 该组合物含有, 按组合物 的总重量计, 约为 75 - 90%、 尤其是约为 79- 84%的所述基质混合体 系, 其中, 丙烯酸类压敏粘合剂在所述混合体系中的重量比约为 5-19 %, 尤其是约为 6- 12.5%; 硅氧烷压敏粘合剂在所述混合体系中的重 量比约为 79- 94%, 尤其是约为 86.5 - 93%; 聚乙烯吡咯烷酮在所述 混合体系中的重量比约为 1-2%, 尤其是约为 1 - 1.5%; 罗替戈汀的含 量, 基于组合物的总重量计, 约为 5- 15%, 尤其是约为 8-11%; 以 及含有, 基于组合物的总重量计, 约为 5- 11%, 尤其是 8- 10%的经 皮渗透促进剂。
本发明中所述的丙烯酸类压敏粘合剂是指丙烯酸类压敏胶或丙烯 酸类压敏胶与 Eudragit类丙烯酸树脂的组合。
所述 "丙烯酸类压敏胶" 是指本技术领域公知的一类釆用丙烯酸 及其衍生物共聚合生成的高分子物质, 具有饱和碳氢主链和酯基側链, 通过改变共聚单体和侧链基团可以获得具有粘性的丙烯酸类压敏胶。 常用的单体有: 软单体, 用于提高压敏胶粘附性, 如丙烯酸乙酯、 丙 烯酸 2-乙基己酯、 丙烯酸异辛酯、 丙烯酸丁酯等; 硬单体, 用于提高 压敏胶内聚力, 例如乙酸乙烯酯、 丙烯酸曱酯、 苯乙烯、 丙烯腈、 曱 基丙烯酸^-^烷基酯, 例如曱基丙婦酸曱酯、 甲基丙烯酸乙酯、 曱基 丙烯酸正丁酯等; 官能团单体, 用于产生化学交联, 例如 (曱基) 丙 婦酸、 (曱基) 丙烯酰胺、 (曱基). 丙烯酸 β -羟乙酯、 (甲基) 丙 烯酸 羟丙酯、 (甲基) 丙烯酸缩水甘油酯、 Ν-羟甲基丙烯酰胺、 二乙烯基苯、 马来酸、 马来酸酐等 (杨玉崑, 《压敏胶粘剂》 , 科学 出版社, 1994年 6月出版, 149 - 150页) 。 本发明中使用的丙烯酸类 压敏胶特别优选由丙烯酸丁酯、 丙烯酸异辛酯、 乙酸乙烯酯、 丙烯酰 胺和 α-甲基丙烯酸单体共聚而成, 特别是例如 CN1640500A (北京康倍 得医药技术开发有限公司)第 21页表 1 中的实施例 2的共聚物 (Α), 即 PAS-10-K, 由 33.1%丙烯酸丁酯、 40.9%丙烯酸异辛酯、 21.0%乙酸乙 烯酯、 3.8%丙烯酰胺和 1.2% α-曱基丙烯酸单体共聚而成。 在此, 通过 援引将 CN1640500A并入本文。 :
所述 "Eudragit类丙烯酸树脂"的非限制性实例有德国 R0hm公司 生产的 Eudragit® L 100、 Eudragit® SI 00、 Eudragit® RL 100、 Eudragit® RS100、 Eudragir E100、 Eudragir L100 - 55、 Eudragir E PO、 Eudragir RL PO、 Eudragit® RS PO等, 以及江苏连云港制碘厂生产的 Eudragit I 号、 II号、 III号、 IV号。
本发明中, 所述丙烯酸类压敏粘合剂优选为丙烯酸类压敏胶与 Eudragit类丙婦酸树脂的混合物, 更优选为 CN1640500A (北京康倍得 医药技术开发有限公司) 中提及的由丙烯酸类压敏胶与 Eudragit® E100 组成的丙烯酸基粘合剂组合物(见 CN1640500A第 24页表 4实施例中 所使用的粘合剂组合物) , 即 PAS-10-K与不同百分含量的 Eudragit® E100组成的粘合剂组合物,特别优选 PAS-10-K与 Eudragit®E100之比 为 9: 1。
本发明中所述的硅氧烷压敏粘合剂是由低粘性二甲基硅氧烷聚合 物(12 000 ~ 15 OOOcp)与硅氧烷树脂共溶于适当的有机溶剂中制成的一 类压敏粘合剂。 其中树脂与聚合物的比率及硅烷醇基的含量是决定硅 氧烷压敏粘合剂性能的重要参数 ( Sobieski, et al., "Silocone Pressure Sensitive Ashesives," Handbok of Pressure Sensitive Technology, 2nd ed., 508 - 517, Van Nostrand Reinhold, New York (1989) ) 0 本发明中, 所述 硅氧烷类压敏粘合剂优选为商业上可取得, 包括 Dow corning Corporation出售的商品名为 BIO - PSA® 4600系列、 BIO - PSA® 4500 系列、 BIO - PSA® 4400系列、 BIO一 PSA® 4300、 BIO - PSA® 4200系 列及 BIO - PSA® 4100系列的硅氧烷压敏粘合剂。更优选抗胺型硅氧烷 压敏粘合剂 BIO一 PSA® 4300系列或 BIO - PSA® 4200系列。
本发明所使用的聚乙烯吡咯烷酮在透皮制剂中可作为结晶抑制剂 使用。 聚乙烯吡咯烷酮即 "PVP" , 是一种非离子型水溶性高分子化合 物, 由 N -乙浠基吡咯烷酮在一定条件下聚合而成。 聚乙烯吡咯烷酮 在透皮制剂中的应用已于 EP0524776 中提及。 合适的 PVP 包括德国 BASF 公司生产的商标名为 Kollidond 的产品。 本发明中优选使用 Kollidond 17PF、 25、 30及 90, 特别优选 Kollidond 30及 Kollidond 90。
本发明人通过大量的实验, 发现釆用将丙烯酸类压敏粘合剂和硅 氧烷压敏粘合剂按一定比例混合的基质体系, 药物的溶解度和皮肤渗 透性都有明显改善, 而再加入低含量的聚乙烯吡咯烷酮则进一步提高 了药物的装载量和渗透量而不影响贴剂的力学性能。 丙烯酸类压敏粘 合剂在基质体系中的重量比增高, 虽然能提高药物的溶解度, 增加药 物的初始扩散速率, 但是会降低药物在体系中的持续释放能力, 最终 导致贴剂应用后的药物残留量较多。 丙烯酸类压敏粘合剂在基质体系 中的重量比降低, 则发挥不了提高药物初始扩散速率的作用。 因此, 在丙烯酸类压敏粘合剂和硅氧烷压敏粘合剂的用量比例上, 存在着一 个限制性的比例范围。 聚乙浠吡咯烷酮起助溶及抑制结晶作用。 它的 合适用量可由本领域普通技术人员通过常规实验加以确定。 体系中太 高的聚乙烯吡咯烷酮比例会影响到贴剂的力学性能, 使用合适量的聚 乙烯吡咯烷酮能够改变药物在体系中的分散状态。
在本发明的含罗替戈汀透皮贴剂中, 丙烯酸类压敏粘合剂在所述 混合体系中的重量比约为 1 -25%, 优选约为 3 -22%, 更优选约为 4 -20%, 特别优选约为 5- 19% , 尤其优选约为 6- 12.5%。
在本发明的含罗替.戈汀透皮贴剂中, 硅氧烷压敏粘合剂在所述混 合体系中的重量比约为 65 -98%, 优选约为 70-96% , 更优选约为 75 -95%, 特别优选约为 79 - 94%, 尤其优选约为 86.5 - 93%。
在本发明的含罗替戈汀透皮贴剂中, 聚乙烯吡咯烷酮在所述混合 体系中的重量比约为 1 - 10%, 优选约为 1 - 8%, 更优选约为 1 -5%, 特别优选约为 1 -2%, 尤其优选约为 1 - 1.5%。
在本发明的含罗替戈汀透皮贴剂中, 罗替戈汀的含量, 基于药物 储库层的总重量计, 约为 1 -40%, 优选约为 3 -20%, 更优选约为 5 - 15%, 特别优选约为 8- 11%。
在本发明的含罗替戈汀透皮贴剂中, 所述混合体系占所述药物储 库层重量的 60- 99% , 优选 70- 95%, 更优选 75 - 90%, 特别优选 79 - 84%。
本发明的透皮贴剂中, 所述药物储库层可任选地包含透皮给药系 统中常用的辅料, 例如经皮渗透促进剂、 抗氧化剂等以辅助改善贴剂 的性能。
本发明透皮贴剂中优选包含经皮渗透促进剂, 按药物储库层的总 重量计, 经皮渗透促进剂的含量可以约为 0- 15%, 优选约为 2- 13%, 更优选约为 5 - 11%, 特别优选为 8- 10%。
本发明透皮贴剂中优选包含抗氧化剂,按药物储库层的总重量计, 抗氧化剂的含量可以约为 0-0.1%。
根据本发明透皮贴剂的优选实施方案, 该透皮贴剂的药物储库层 包含, 按药物储库层的总重量计, 约为 70- 95%、 优选约为 75 - 90% 的所述基质混合体系, 其中, 丙烯酸类压敏粘合剂在所述混合体系中 的重量比约为 3 -22% , 优选约为 4-20%; 硅氧烷压敏粘合剂在所述 混合体系中的重量比约为 70- 96% , 优选约为 75 - 95%; 聚乙烯吡咯 烷酮在所述混合体系中的重量比约为 1 - 8%, 优选约为 1 -5%; 罗替 戈汀的含量, 基于药物储库层的总重量计, 约为 3 -20%, 优选约为 5 - 15%, 以及包含, 基于药物储库层的总重量计, 0- 15%、 优选约为 2 - 13%的经皮渗透促进剂。
根据本发明透皮贴剂的更优选实施方案, 该透皮贴剂的药物储库 层包含, 按药物储库层的总重量计, 约为 75 - 90%、 尤其是约为 79- 84%的所述基质混合体系, 其中, 丙烯酸类压敏粘合剂在所述混合体系 中的重量比约为 5 - 19%, 尤其是约为 6- 12.5%; 硅氧烷压敏粘合剂 在所述混合体系中的重量比约为 79 -94% , 尤其是约为 86.5 - 93 %; 聚乙烯吡咯烷酮在所述混合体系中的重量比约为 1 -2%,尤其是约为 1 - 1.5%; 罗替戈汀的含量,基于药物储库层的总重量计, 约为 5 - 15%, 尤其是约为 8- 11%; 以及含有, 基于药物储库层的总重量计, 约为 5 - 11%, 尤其是 8- 10%的经皮渗透促进剂。
可用于本发明的经皮渗透促进剂可以选自 ( 1 )表面活性剂, 例如 吐温、 司盘、 月桂醇硫酸钠、 十二烷基硫酸钠等; (2)有机溶剂类, 包括醇类, 多元醇类, 酯类, 二曱亚砜及其类似物, 具体实例有乙酸 乙酯、 丙;醇二乙酯、 乙二醇、 丙三醇、 二甲亚砜、 癸基甲基亚砜等; (3)脂肪酸, 脂肪醇及脂肪酸酯, 例如油酸、 乳酸、 肉豆蔻酸、 月桂 酸、 肉豆蔻酸异丙酯等; (4) 氮酮类化合物及吡咯酮衍生物, 例如 N -曱基吡咯酮、 1,5 -二曱基吡咯酮、 5-羧基吡咯酮等; (5) 角质保 湿与软化剂, 例如水杨酸、 尿素等; (6)萜烯类化合物, 例如薄荷醇、 樟脑等。 优选肉豆蔻酸异丙酯、 月桂酸或 N-曱基吡咯酮。
可用于本发明的合适的抗氧化剂的种类较多, 例如可从无机和有 机抗氧剂中选择合适的抗氧化剂, 并通过本领域常规的稳定性试验加 以确定。 所述抗氧化剂可以选自例如维生素 E、 棕榈酸抗坏血酸酯、 偏 亚硫酸钠或其混合物, 优选维生素 E、 棕榈酸抗坏血酸酯。 .
本发明中使用的活性药物罗替戈汀可以是罗替戈汀游离碱或罗替 戈汀的可药用盐, 例如罗替戈汀盐酸盐、 罗替戈汀硫酸盐、 罗替戈汀 硝酸盐或罗替戈汀琥珀酸盐等, 优选罗替戈汀游离碱。
在本发明的透皮贴剂中, 背衬支持层由本领域技术人员熟知的背 衬材料例如铝箔、 聚对苯二甲酸二乙酯、 聚乙烯或无纺布等构成。 在 本发明的透皮贴剂中, 覆盖于药物储库层之上的保护层由本领域技术 人员熟知的保护材料构成, 如聚酯、 聚氯乙烯、 聚对苯二曱酸乙二醇 酯等的薄膜, 或者将上述薄膜进行常规释放涂层处理, 包括在直接与 药物储库层接触的薄膜表面上涂覆硅氧烷树脂或氟树脂等。 本发明透 皮贴剂的保护层优选表面涂覆有氟树脂的聚酯薄膜。
本发明的透皮贴剂可根据需要制成各种形状和尺寸, 其表面积优 选为 1.0 - 150cm2: 其成品规格优选 4.5mg罗替戈汀 /10cm2、 9mg罗替 戈汀 /20cm2、 13.5mg罗替戈汀 /30cm2、 18mg罗替戈汀 /40cm2
本发明含罗替戈汀的透皮贴剂的药物储库层的厚度可以为 20μιη - 80μιη, 优选 40 - 60μπι。
本发明罗替戈汀的透皮贴剂的药物储库层可以是单层, 也可以是 本领域熟知的多层复合的形式, 这样的透皮贴剂的结构可以包括背衬 支持层, 高含量活性药物层和 /或中含量活性药物层, 和低含量活性药 物层, 以及保护层。
本发明含罗替戈汀的组合物可采用本领域已知的技术制备, 例如 在合适的容器中称取配方量的聚乙烯吡咯烷酮, 加入适量的抗氧化剂 (如果含有) 乙醇溶液, 搅拌使聚乙烯吡咯烷酮溶解。 在上述容器中, 再称取配方量的药物罗替戈汀、 硅氧烷压敏粘合剂、 丙烯酸类压敏粘 合剂 (其中, 按 CN1640500A第 20 - 21 页实施例中制备含(曱基) 丙 烯酰胺或其 Ν,Ν取代单体的 (甲基) 丙烯酸酯共聚物的方法制备丙烯 酸类压敏胶) 和任选的经皮渗透促进剂, 加入适当量的溶剂例如乙酸 乙酯至一定体积, 搅拌使各组分充分溶解。 最后, 加入适当量的乙醇 并超声 30分钟使聚乙烯吡咯烷酮完全溶解, 即可制得含罗替戈汀的组 合物。
本发明的透皮贴剂可采用本领域已知的技术制备, 例如包括步骤:
1. 在合适的容器中, 称取配方量的聚乙烯吡咯烷酮, 加入适量的 抗氧化剂 (如果含有) 乙醇溶液, 搅拌使聚乙烯吡咯烷酮溶解。
2. 在上述容器中, 再称取配方量的药物罗替戈汀、 硅氧烷压敏粘 合剂、 丙烯酸类压敏粘合剂(其中, 丙烯酸类压敏胶按照 CN1640500A 第 20 - 21页实施例中制备含(甲基)丙烯酰胺或其 Ν,Ν取代单体的(曱 基) 丙烯酸酯共聚物的方法来制备) 和任选的经皮渗透促进剂, 加入 适当量的溶剂例如乙酸乙酯至一定体积, 搅拌使各组分充分溶解。
3. 最后, 加入适当量的乙醇并超声 30 分钟使聚乙烯吡咯烷酮完 全溶解, 此时, 胶浆应清澈透明。 由此制得透皮贴剂的药物储库层用 物料。
4. 将配好的胶浆按一定的厚度涂在平展的背衬材料上, 初步抽风 干燥后, 移至供箱中在 80°C条件下干燥 2小时, 去除挥发性溶剂后, 取出冷却, 然后将保护材料层覆盖其上, 最后沖切成一定面积和形状 的贴剂。
药物储库层是多层复合形式的本发明透皮贴剂可以按照本领域已 知的常规制备方法制备, 例如, 首先配制含活性药物浓度相同或不同 的基质, 然后将各基质用刮刀方法分别涂布于背衬支持材料和特制的 防粘转移材料上, 干燥成形, 再将涂布于防粘转移材料上的基质层转 移到涂布于背衬支持材料的基质层上, 剥离防粘转移材料, 依此逐层 转移, 并将各层进行压合, 然后将保护材料层覆盖其上, 最后沖切成 一定面积和形状, 即得具有多层复合形式的药物储库层的贴剂 (参见: 梁秉文, 《经皮给药制剂》 , 中国医药科技出版社, 1992年 9月出版 329 - 334页) 。
本发明提供了可充分溶解并释放有效药量的罗替戈汀的透皮贴 剂。 该贴剂提高了罗替戈汀初始通透量。 由此特点, 可以预期, 在临 床应用上, 本发明的罗替戈汀透皮贴剂能够表现出较短的起效时间。 附图说明
图 1 示出了实施例 1 (本发明) 、 NEUPRO® (比较例 1 ) 和比较 例 2 - 5 的透皮贴剂中罗替戈汀体外 1 - 72 小时透皮累积释放量 ( μg/cm2 ) 曲线。 具体实施方式
下面通过实施例进一步举例说明本发明, 但实施例对本发明不构 成任何限制。 透皮贴剂制备
实施例 1
在合适的容器中称入 0.05克聚乙烯吡咯烷酮 (Kollidon 30, 德国 BASF公司生产), 加入 1毫升, 3毫克 /毫升的抗氧剂棕榈酸抗坏血酸 酯 (北京晨奥高科技发展有限公司生产) 乙醇溶液, 搅拌使聚乙烯吡 咯烷酮溶解。 在上述容器中, 再称入 0.45克罗替戈汀碱(罗替戈汀碱 按文献 "Synthesis and radioreceptor binding activity of N - 0437, a new, extremely potent and selective D2 dopamine receptor agonist" , Pharm Weekbl Sci, Vol.7.1985:208 - 211的方法进行合成制备) 、 6.25克含有 60%固体含量的硅氧烷压敏粘合剂 ( BIO - PSA® 7 - 4302 Dow Corning Corporation ) 、 0.72 克含有 35%固体含量的丙烯酸类压敏粘合剂 (制 备方法如下: 按 CN1640500A第 20 - 21页实施例中制备含(甲基) 丙 烯酰胺或其 Ν,Ν取代单体的 (曱基) 丙烯酸酯共聚物的方法, 采用其 中实施例 2 使用的单体制备丙烯酸类压敏胶, 然后将制得的丙烯酸类 压敏胶与 Eudragit® E100 (德国 R0hm公司生产)按 9: 1 (干重) 的比 例混合)及 0.5克肉豆蔻酸异丙酯(江苏昆 ^市华新日用化学品有限公 司生产) , 加入适当量的乙酸乙酯 (北京有机化工厂生产, 化学纯) 至一定体积, 搅拌使各组分充分混合。 然后再加入适当量的乙醇 (北 京益利精细化学品有限公司生产, 化学,纯) , 并超声 30分钟使聚乙烯 吡咯烷酮完全溶解成胶浆, 此时, 胶浆应清澈透明。 将配好的胶浆按 一定的厚度涂在平展的聚酯薄膜 (SCOTCHPAK® 1 109 ) 背衬材料上, 制备药物储库层, 然后, 在 85 °C条件下干燥 2 - 3小时, 使其干燥后厚 度约为 40μιη。 再将涂有氟层的聚酯薄膜 (SCOTCHPAK® 1022 )覆盖 在药物储库层上, 最后冲切成一定面积和形状的贴剂, 从而制得本发 明的透皮贴剂。 该贴剂的罗替戈汀药物含量约为 0.45mg/cm2, 其中各 组分的含量 (重量份)如表 1所示。 实施例 2 - 3
采用实施例 1 的方法, 按照表 1 中给出的药物储库层中各组分及 其含量 (重量份), 制备实施例 2及实施例 3的贴剂。 实施例 4 - 8 采用实施例 1的方法, 制备实施例 4 - 8的贴剂, 各贴剂药物储库 层中的组分及其含量 (重量份)如表 2所示。 比较例 1
为商业上可得到的罗替戈汀贴剂产品 EUPRO® ( Schwarz Pharm
AG. 罗替戈汀含量为 0.45mg/cm2 ) ? 比较例 2 - 5
按照实施例 1 的方法制得的贴剂, 其中比较例 2配方中不含硅氧 烷压 ¾t粘合剂, 而比较例 3配方中不含丙烯酸类压敏粘合剂, 比较例 4 配方中不含聚乙烯吡咯烷酮 (比较例 4 贴剂的制备过程中去除溶解聚 乙烯吡咯烷酮的步骤) ; 比较例 5 配方中丙烯酸类压敏粘合剂及硅氧 烷压敏粘合剂含量均在本发明范围以外。 各贴剂药物储库层的具体配 方如表 1所示。 透皮贴剂中罗替戈汀释放量测定
上述贴剂按照《经皮给药制剂》 (梁秉文, 中国医药科技出版社,
1992年 9月出版 252页) 介绍的实验方法进行体外透皮实验。
实验设备: FRANZ透皮扩散仪(型号 TK - 60B, 上海锴凯科技贸 易有限公司)
实验载体: 采用新鲜制备的豚鼠肋背全厚皮肤(制备方法参照《经 皮给药制剂》 梁秉文, 中国医药科技出版社, 1992 年 9 月出版, 252 页) 、
样本数量: 5(每个实施例或比较例贴剂的测试品平行选 5个样本) 贴剂表面积: 10cm2
扩散介质: pH6.2磷酸盐緩冲液
测定方法:高效液相色谱法(紫外检测器, Waters公司,型号 2487 ) 测得实施例 1和比较例 1 - 5的贴剂 1 - 72小时罗替戈汀的累积释 放量( g/cm2 ) , 结果如图 1所示。 实施例 1 - 3及比较例 2 - 5贴剂的 0 - 12小时罗替戈汀的累积释放量 (^g/cm2 ) 如表 1所示。 表 1
Figure imgf000014_0001
注: 所有实施例和比较例(包括比较例 1的 NEUPRO®的实验样品)均 含有相同量的罗替可汀 ( 0.45mg/cm2 ) , 以保证实验结果的可比性。 表 2
Figure imgf000014_0002
由图 1可以看到,符合本发明要求的实施例 1较 NEUPRO®及其它 比较例的贴剂均有较高的透皮释放量, 且体现出零级释放的特点; 更 重要的是, 由图 1 中可以看出, 与 NEUPRO® (比较例 1 )相比较, 本 发明的透皮贴剂在扩散期间的最初 12小时,有显著增大的药物通透量, 即意味着起效更快。 由图 1和表 1可以看出, 与比较例 2 - 5的贴剂相 比较,本发明透皮贴剂对罗替可汀的透皮速率表现出独特的优势, 具有 更加持久、 均匀释药的性能。

Claims

权 利 要 求
1. 含罗替戈汀的组合物, 其中含有, 按重量计, 60- 99%、 优选 70 - 95 %、 更优选 75 - 90%、 特别优选 79 - 84%的由丙烯酸类压敏粘 合剂和硅氧烷压敏粘合剂两类粘合剂及聚乙烯吡咯烷酮按特定重量比 组合构成的基质混合体系, 其中
( 1 ) 丙烯酸类压敏粘合剂在混合体系中的重量比约为 1 -25%,
(2)硅氧烷压敏粘合剂在混合体系中的重量比约为 65 -98%, 和
(3) 聚乙烯吡咯烷酮在混合体系中的重量比约为 1 - 10%, 以及 基于组合物的总重量计, 罗替戈汀的含量约为 1 -40%。
2. 权利要求 1的组合物, 其中所述丙烤酸类压敏粘合剂在混合体 系中的重量比约为 3 - 22%, 更优选约为 4-20% , 特别优选约为 5 - 19% , 尤其优选约为 6- 12.5%。
3. 权利要求 1或 2的组合物, 其中所述硅氧烷压敏粘合剂在混合 体系中的重量比约为 70 - 96% , 更优选约为 75 - 95% , 特别优选约为
79 -94% , 尤其优选约为 86.5 - 93%。
4. 权利要求 1 -3之任一项的组合物, 其中所述聚乙烯吡咯烷酮 在混合体系中的重量比约为 1 -8%, 更优选约为 1 -5%, 特别优选约 为 1 -2%, 尤其优选约为 1 - 1.5%。
5. 权利要求 1 -4之任一项的组合物, 其中所述罗替戈汀的含量 优选约为 3 - 20%, 更优选约为 5 - 15%, 特别优选约为 8- 11%。
6. 权利要求 1 - 5之任一项的组合物, 其中还含有至少一种选自 经皮渗透促进剂和抗氧化剂的辅料。
7. 权利要求 6 的组合物, 其中含有, 按组合物重量计, 约为 75 - 90%、 尤其是约为 79 - 84%的所述基质混合体系, 其中, 丙烯酸类压 敏粘合剂在所述混合体系中的重量比约为 5 - 19% , 尤其是约为 6- 12.5%; 硅氧烷压敏粘合剂在所述混合体系中的重量比约为 79-94%, 尤其是约为 86.5 -93%; 聚乙烯吡咯烷酮在所述混合体系中的重量比 约为 1 -2%, 尤其是约为 1 - 1.5%; 罗替戈汀的含量, 基于组合物的总 重量计, 约为 5 - 15%, 尤其是约为 8- 11%; 以及含有约为 5 - 11%, 尤其是 8― 10%的经皮渗透促进剂。
8. 权利要求 6或 7的组合物, 其中所述经皮渗透促进剂选自表面 活性剂、 有机溶剂类, 包括醇类, 多元醇类, 酯类, 二甲亚砜及其类 似物, 脂肪酸, 脂肟醇及脂肪酸酯, 氮酮类化合物及吡咯酮衍生物, 水杨酸, 萜烯类化合物, 优选肉豆蔻酸异丙酯、 月桂酸或 N -曱基吡 p各酮。
9. 权利要求 6 - 8之任一项的组合物, 其中所述抗氧化剂选自维 生素 E、 棕榈酸抗坏血酸酯、 偏亚硫酸钠或其混合物, 优选维生素 E 或棕榈酸抗坏血酸酯。
10. 权利要求 1 - 9之任一项的组合物, 其中所述丙烯酸类压敏粘 合剂选自丙烯酸类压敏胶或丙烯酸类压敏胶与 Eudragit 类丙烯酸树脂 的组合, 优选丙烯酸类压敏胶与 Eudragit类丙烯酸树脂的组合。
11. 权利要求 1 - 10之任一项的组合物, 其中所述丙烯酸压敏胶 由下列至少两种单体共聚而成: 丙烯酸乙酯、 丙烯酸 2 -乙基己酯、 丙 烯酸异辛酯、 丙婦酸丁酯、 乙酸乙烯酯、 丙烯酸曱酯、 苯乙烯、 丙烯 腈、 甲基丙烯酸曱酯、 甲基丙烯酸乙酯、 甲基丙烯酸正丁酯、 (曱基) 丙烯酸、 (甲基) 丙烯酰胺、 (甲基) 丙烯酸 P -羟乙酯、 (曱基) 丙烯酸 β -羟丙酯、 (曱基)丙烯酸缩水甘油酯、 Ν -羟曱基丙烯酰胺, 优选由丙烯酸丁酯、 丙烯酸异辛酯、 乙酸乙浠酯、 丙烯酰胺和 α -曱基 丙烯酸单体共聚而成。
12. 权利要求 10的组合物, 其中所述 Eudragit类丙烯酸树脂选自 Eudragit® L 100、 Eudragit® S 100、 Eudragit® RL 100、 Eudragit® RS 100、
Eudragit® E100、 Eudragit® L100 - 55、 Eudragit® E PO、 Eudragit® RL PO、 Eudragit® RS PO及其混合物,优选 Eudragit® RSI 00或 Eudragit® E100。
13. 权利要求 1 - 12之任一项的组合物, 其中所述硅氧烷压敏粘 合剂选自 BIO— PSA® 4600系列、 BIO - PSA® 4500系列、 BIO― PSA® 4400系列、 BIO - PSA® 4300、 BIO - PSA® 4200系列及 BIO - PSA® 4100 系列硅氧烷压敏粘合剂及其混合物,优选 BIO - PSA® 4200系列或 BIO — PSA® 4100系列。
14. 权利要求 1 - 13之任一项的组合物, 其中所述聚乙烯吡咯烷 §同选自 Kollidond 17PF、 Kollidond 25 , Kollidond 30及 Kollidond 90, 优选 Kollidond 30或 Kollidond 90。
15. 权利要求 1 - 14之任一项的组合物, 其中所述罗替戈汀选自 罗替戈汀游离碱或罗替戈汀的可药用盐, 优选罗替戈汀碱。
16. 含罗替戈汀的透皮贴剂, 其特征在于, 其药物储库层包含权 利要求 1 - 15之任一项的组合物。
17. 权利要求 16的透皮贴剂, 该贴剂具有复合层结构, 至少包含 背衬支持层、 含有活性成分罗替戈汀的药物储库层和覆盖于药物储库 层之上的保护层。
18. 权利要求 1 - 15之任一项含罗替戈汀的组合物在制备含罗替 戈汀的透皮贴剂方面的应用。
PCT/CN2008/001267 2007-07-06 2008-07-03 Composition comprenant de la rotigotine, son utilisation et timbre transdermique comprenant la composition WO2009006787A1 (fr)

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JP2010515339A JP4883220B2 (ja) 2007-07-06 2008-07-03 ロチゴチン含有組成物及びその使用並びにこの組成物を含む経皮貼付剤
DK08773014.9T DK2177217T3 (en) 2007-07-06 2008-07-03 COMPOSITION INCLUDING ROTIGOTIN, USE OF IT AND TRANSDERMAL PATCH CONTAINING COMPOSITION
EP08773014.9A EP2177217B1 (en) 2007-07-06 2008-07-03 Composition comprising rotigotine, its use and transdermal patch comprising the composition
US12/667,915 US9265752B2 (en) 2007-07-06 2008-07-03 Transdermal patch containing Rotigotine
ES08773014.9T ES2655705T3 (es) 2007-07-06 2008-07-03 Composición que comprende rotigotina, su uso y parche transdérmico que comprende la composición
US14/993,190 US20160120822A1 (en) 2007-07-06 2016-01-12 Composition containing rotigotine and use thereof and transdermal patch containing the composition

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