JP6285820B2 - ガランタミン含有経皮吸収製剤 - Google Patents
ガランタミン含有経皮吸収製剤 Download PDFInfo
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- JP6285820B2 JP6285820B2 JP2014161239A JP2014161239A JP6285820B2 JP 6285820 B2 JP6285820 B2 JP 6285820B2 JP 2014161239 A JP2014161239 A JP 2014161239A JP 2014161239 A JP2014161239 A JP 2014161239A JP 6285820 B2 JP6285820 B2 JP 6285820B2
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- Prior art keywords
- sensitive adhesive
- pressure
- adhesive layer
- acid
- mass
- Prior art date
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- 229960003980 galantamine Drugs 0.000 title claims description 32
- ASUTZQLVASHGKV-UHFFFAOYSA-N galanthamine hydrochloride Natural products O1C(=C23)C(OC)=CC=C2CN(C)CCC23C1CC(O)C=C2 ASUTZQLVASHGKV-UHFFFAOYSA-N 0.000 title claims description 32
- 238000002360 preparation method Methods 0.000 title claims description 22
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- KEMQGTRYUADPNZ-UHFFFAOYSA-N heptadecanoic acid Chemical compound CCCCCCCCCCCCCCCCC(O)=O KEMQGTRYUADPNZ-UHFFFAOYSA-N 0.000 description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 4
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Description
比較例1〜4の貼付剤は、表1の記載にしたがい、以下のとおり製造した。得られた貼付剤に対して、結晶析出の評価を行った。
混合機を用いて、ガランタミン臭化水素酸塩、水酸化ナトリウム(400g/L水溶液)、アクリル粘着剤(DURO−TAK387−4287)を混合し、粘着剤溶液を得た。得られた粘着剤溶液を離型処理されたフィルム上に展延し、溶剤を乾燥除去させて粘着剤層を形成した。次に、粘着剤層上に支持体(PETとポリエチレンのラミネートフィルム)を積層させて、粘着剤層を圧着転写させることにより、比較例1および2の貼付剤をそれぞれ得た。
アクリル粘着剤(DURO−TAK387−4287)に代えて、ゴム系粘着剤(SIS、脂環族飽和炭化水素樹脂および流動パラフィンの混合物)を用いたこと以外は、比較例1と同様にして、比較例3の貼付剤を得た。
アクリル粘着剤(DURO−TAK387−4287)に代えて、シリコーン系粘着剤(BIO−PSA 7−4202)を用いたこと以外は、比較例1と同様にして、比較例4の貼付剤を得た。
各貼付剤は、室温で3か月間保存した後、開封して貼付剤の粘着剤層を観察し、薬物の結晶析出がみとめられるかを調べた。
比較例5〜7の貼付剤は、表3の記載にしたがい、以下のとおり製造した。得られた貼付剤に対して、インビトロ皮膚透過試験を行った。
アクリル粘着剤(DURO−TAK 387−4287)に代えて、他のアクリル粘着剤(DURO−TAK 87−4098、DURO−TAK 87−2194、DURO−TAK 387−2516)を用いたこと以外は、比較例2と同様にして、比較例5〜7の貼付剤をそれぞれ調製した。
ヘアレスマウスから摘出した皮膚の角質層側に3cm2の貼付剤を貼り、その真皮側がレセプター槽側になるように32℃に保温したフロースルー型拡散セルに装着した。試験は、レセプター槽にリン酸緩衝生理食塩水を置換しつつ、所定時間ごとに液を採取した。得られた液中の薬物濃度を高速液体クロマトグラフ法により測定した。前記濃度値から各時間における透過薬物量を算出し、薬物の皮膚透過速度を算出した上、最大皮膚透過速度Jmax(μg/h/cm2)を求めた。
皮膚透過性の向上を目的として、アクリル粘着剤とガランタミン臭化水素酸塩の混合物に、ジメチルスルホキシド(DMSO)、氷酢酸と酢酸ナトリウムの混合物、乳酸、イソステアリン酸またはオレイン酸を添加して、比較例8〜13の貼付剤をそれぞれ調製した。なお、各成分の含有量は、表5に記載のとおりである。
表7の記載にしたがい、実施例1および2、参考例1〜4の貼付剤をそれぞれ調製した。得られた貼付剤に対して、凝集力、粘着力およびヒト皮膚付着性の評価、ならびにインビトロ皮膚透過試験を行った。なお、インビトロ皮膚透過性試験の方法は、上述のとおりである。
各貼付剤を離型処理されたフィルムから剥離し、粘着剤の表面に親指を押し付けてから離した際の貼付剤の凝集力、粘着力について、以下の評価基準にしたがい、評価した。
(評価基準)
○:充分に強い
△:充分な強さではない
×:非常に弱い
ヒト死体から摘出した皮膚の角質層側に各貼付剤を貼って、32℃で3時間保存した後に貼付剤を剥離し、その際の剥離抵抗を以下のとおり評価した。
(評価基準)
○:充分に強い
△:充分な強さではない
×:非常に弱い
表9の記載にしたがい、比較例13と同様にして、比較例14〜24の貼付剤を調製した。得られた貼付剤に対して、結晶析出の評価、皮膚透過性試験を行った。なお、結晶析出の評価、皮膚透過性試験の方法は、上述のとおりである。
Claims (6)
- 支持体と、前記支持体に積層された粘着剤層とを備える経皮吸収製剤であって、
前記粘着剤層が、粘着剤と、ガランタミンまたはその塩と、アクリル酸デンプンまたはヒドロキシプロピルメチルセルロースと、を含有する経皮吸収製剤。 - 前記粘着剤が、カルボキシ基を有しないアクリル粘着剤を含む、請求項1に記載の経皮吸収製剤。
- 前記粘着剤層が、炭素数8〜18の脂肪酸をさらに含有する、請求項1または2に記載の経皮吸収製剤。
- 前記粘着剤層が、脂肪酸エステルをさらに含有する、請求項1〜3のいずれか一項に記載の経皮吸収製剤。
- 前記脂肪酸エステルが、パルミチン酸イソプロピル、オレイン酸モノグリセリド、プロピレングリコールモノラウレートおよびミリスチン酸イソプロピルからなる群から選択される1種または2種以上である、請求項4に記載の経皮吸収製剤。
- 前記脂肪酸エステルの含有量が、粘着剤層全体を基準として、1質量%以上5質量%未満である、請求項4または5に記載の経皮吸収製剤。
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