JP6220893B2 - クロニジン含有貼付剤 - Google Patents
クロニジン含有貼付剤 Download PDFInfo
- Publication number
- JP6220893B2 JP6220893B2 JP2015552401A JP2015552401A JP6220893B2 JP 6220893 B2 JP6220893 B2 JP 6220893B2 JP 2015552401 A JP2015552401 A JP 2015552401A JP 2015552401 A JP2015552401 A JP 2015552401A JP 6220893 B2 JP6220893 B2 JP 6220893B2
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- JP
- Japan
- Prior art keywords
- clonidine
- patch
- acid
- pressure
- pharmaceutically acceptable
- 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.)
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- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
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- BNIXVQGCZULYKV-UHFFFAOYSA-N pentachloroethane Chemical compound ClC(Cl)C(Cl)(Cl)Cl BNIXVQGCZULYKV-UHFFFAOYSA-N 0.000 description 1
- 229940083254 peripheral vasodilators imidazoline derivative Drugs 0.000 description 1
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- 239000008363 phosphate buffer Substances 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229940068918 polyethylene glycol 400 Drugs 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002742 polystyrene-block-poly(ethylene/propylene) -block-polystyrene Polymers 0.000 description 1
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
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- 230000003518 presynaptic effect Effects 0.000 description 1
- 229940083082 pyrimidine derivative acting on arteriolar smooth muscle Drugs 0.000 description 1
- 150000003230 pyrimidines Chemical class 0.000 description 1
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- 239000005060 rubber Substances 0.000 description 1
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- 150000003872 salicylic acid derivatives Chemical class 0.000 description 1
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- 150000004760 silicates Chemical class 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 230000037321 sleepiness Effects 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
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- TUHBEKDERLKLEC-UHFFFAOYSA-N squalene Natural products CC(=CCCC(=CCCC(=CCCC=C(/C)CCC=C(/C)CC=C(C)C)C)C)C TUHBEKDERLKLEC-UHFFFAOYSA-N 0.000 description 1
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- 210000000434 stratum corneum Anatomy 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000003784 tall oil Substances 0.000 description 1
- 229940124597 therapeutic agent Drugs 0.000 description 1
- 230000035922 thirst Effects 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 235000010384 tocopherol Nutrition 0.000 description 1
- 239000011732 tocopherol Substances 0.000 description 1
- 229960001295 tocopherol Drugs 0.000 description 1
- 229930003799 tocopherol Natural products 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 230000001457 vasomotor Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- GVJHHUAWPYXKBD-IEOSBIPESA-N α-tocopherol Chemical compound OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-IEOSBIPESA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/70—Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
- A61K9/7023—Transdermal patches and similar drug-containing composite devices, e.g. cataplasms
- A61K9/703—Transdermal 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
- A61K9/7038—Transdermal patches of the drug-in-adhesive type, i.e. comprising drug in the skin-adhesive layer
- A61K9/7046—Transdermal patches of the drug-in-adhesive type, i.e. comprising drug in the skin-adhesive layer the adhesive comprising macromolecular compounds
- A61K9/7053—Transdermal 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
- A61K31/4164—1,3-Diazoles
- A61K31/4168—1,3-Diazoles having a nitrogen attached in position 2, e.g. clonidine
-
- 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
- A61P25/02—Drugs for disorders of the nervous system for peripheral neuropathies
-
- 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
- A61P25/04—Centrally acting analgesics, e.g. opioids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
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- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Neurosurgery (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Dermatology (AREA)
- Rheumatology (AREA)
- Medicinal Preparation (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
表1に記載された割合にしたがい、スチレン−イソプレン−スチレンブロックコポリマー(SIS)、ポリイソブチレン(PIB)、粘着付与樹脂、流動パラフィン、添加物A及びトルエンを、混合機を用いて混合し、均一な基剤1〜4を調製した。表1中の数値は、質量(g)を意味する。次に、表2に記載された割合にしたがい、上記基剤1〜4のいずれか1種とクロニジンと、必要に応じて添加剤Bとを混合し、粘着剤溶液をそれぞれ得た。得られた粘着剤溶液を離型処理されたフィルム(剥離ライナー)上に展延し、溶剤を乾燥除去させて粘着剤層を形成した後、その上に支持体を積層させて、支持体と粘着剤層とを圧着させることにより貼付剤を得た。したがって、得られた貼付剤は、剥離ライナー、粘着剤層、支持体の順に積層された。
実施例、比較例及び参考例の貼付剤の薬物安定性は、以下のようにして評価した。
製造した貼付剤を25mm×25mmの略矩形に打ち抜き、アルミニウム製の包材にそれぞれ個別に封入した後、該包材を表3〜5に記載の条件(温度、期間)にしたがって保管した。表3に記載の期間が経過した後、該包材から貼付剤を取り出し、得られた貼付剤にテトラヒドロフラン及びメタノールを添加して振とう及び超音波処理することにより、貼付剤中に含有される薬物(クロニジン)を抽出した。得られた抽出液を濃縮したのち、高性能液体クロマトグラフィー(HPLC)にて吸光度を測定した。得られた吸光度から、検量線に基づいて貼付剤一枚あたりの薬物含有量を算出した。なお、保管前の貼付剤中の薬物含有量を同様に算出し、初期薬物含有量とした。薬物安定性試験における貼付剤中の薬物残存率を、下記式(1)により算出し、薬物安定性を示す値とした。
薬物残存率=(試験後の貼付剤1枚あたりの薬物含有量)/(試験前の貼付剤1枚あたりの薬物含有量)×100(%) …(1)
実施例、比較例及び参考例の貼付剤の皮膚透過性は、以下のようにして評価した。
ヘアレスマウスの背部皮膚を剥離し、剥離された皮膚の真皮側がレセプター層側となるようにして、37℃の温水を外周部に循環させたフロースルーセルに装着した。次に、皮膚の角質層側に貼付剤(貼付面積3.14cm2)を貼付し、レセプター層としてリン酸緩衝液(pH7.4)を加えた生理食塩水を用いて、1.25mL/hrで4時間毎に24時間後までレセプター溶液をサンプリングし、その流量を測定すると共に、HPLCを用いてレセプター溶液中のクロニジン濃度を測定した。得られた測定値から1時間あたりの薬物透過速度を算出し、定常状態における単位面積あたりの薬物の皮膚透過速度とした。
表2の記載にしたがい、基剤1とクロニジンとを混合して、クロニジンの含有量が異なる参考例1〜4の貼付剤を調製した。参考例1〜4の貼付剤の薬物安定性及び皮膚透過性の評価結果を表3に示す。表3に示すように、貼付剤中のクロニジン含有量の低下に伴い、皮膚透過速度及び薬物安定性が低下することが明らかとなった。
実施例1〜13、比較例1〜7の貼付剤を調製し、薬物安定性及び皮膚透過性を評価した。評価結果を表4及び表5に示す。添加物B(クエン酸、オレイン酸、ステアリン酸、イソステアリン酸、リンゴ酸、乳酸、オイドラギット(登録商標)L100/ポリエチレングリコール及びクエン酸/ポリエチレングリコール)を添加することによって、94%以上のクロニジン残存率を示し、貼付剤中の薬物安定性と皮膚透過性がともに向上した。特に、実施例5及び6の貼付剤は、皮膚透過性の抑制効果が顕著であった。一方、比較例1〜7の貼付剤は、60℃、1週間保管した場合、クロニジンの残存率は73〜93%であった。
Claims (3)
- 支持体と、該支持体上に積層された粘着剤層とを備える局所鎮痛用貼付剤であって、
前記粘着剤層が、クロニジン又はその薬学的に許容可能な塩と、クロニジン又はその薬学的に許容可能な塩に対する皮膚透過抑制剤と、粘着剤と、を含み、
前記皮膚透過抑制剤が、クエン酸、オレイン酸、ステアリン酸、イソステアリン酸、リンゴ酸、乳酸、並びに、メタクリル酸とメタクリル酸エステルとの共重合体及びポリエチレングリコールの組み合わせからなる群から選択される少なくとも1種であり、
前記メタクリル酸とメタクリル酸エステルとの共重合体が、ポリ(メタクリル酸−co−メタクリル酸メチル)またはポリ(メタクリル酸−co−メタクリル酸エチル)であり、
前記ポリエチレングリコールが、数平均分子量が100〜20000のポリエチレングリコールであり、
前記クロニジン又はその薬学的に許容可能な塩の含有量が、前記粘着剤層全量を基準として0.1質量%〜0.9質量%であり、
クロニジン又はその薬学的に許容可能な塩の最大皮膚透過速度が0.002μg/cm 2 /hr〜0.5μg/cm 2 /hrである、局所鎮痛用貼付剤。 - 前記皮膚透過抑制剤の含有量が、前記粘着剤層全量を基準として、0.1〜10質量%である、請求項1に記載の貼付剤。
- 乾燥剤とともに包材に封入される、又は、乾燥機能を有する機能性包材に封入される、請求項1又は2に記載の貼付剤。
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