JP7369278B2 - 経皮浸透促進組成物、及びチモロール製剤におけるその適用 - Google Patents
経皮浸透促進組成物、及びチモロール製剤におけるその適用 Download PDFInfo
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- JP7369278B2 JP7369278B2 JP2022515078A JP2022515078A JP7369278B2 JP 7369278 B2 JP7369278 B2 JP 7369278B2 JP 2022515078 A JP2022515078 A JP 2022515078A JP 2022515078 A JP2022515078 A JP 2022515078A JP 7369278 B2 JP7369278 B2 JP 7369278B2
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- timolol
- liquid paraffin
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Classifications
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0014—Skin, i.e. galenical aspects of topical compositions
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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
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/535—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with at least one nitrogen and one oxygen as the ring hetero atoms, e.g. 1,2-oxazines
- A61K31/5375—1,4-Oxazines, e.g. morpholine
- A61K31/5377—1,4-Oxazines, e.g. morpholine not condensed and containing further heterocyclic rings, e.g. timolol
-
- 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
- A61K31/13—Amines
- A61K31/135—Amines having aromatic rings, e.g. ketamine, nortriptyline
- A61K31/138—Aryloxyalkylamines, e.g. propranolol, tamoxifen, phenoxybenzamine
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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
- A61K31/16—Amides, e.g. hydroxamic acids
- A61K31/165—Amides, e.g. hydroxamic acids having aromatic rings, e.g. colchicine, atenolol, progabide
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
- A61K35/02—Medicinal preparations containing materials or reaction products thereof with undetermined constitution from inanimate materials
- A61K35/04—Tars; Bitumens; Mineral oils; Ammonium bituminosulfonate
- A61K35/06—Mineral oils, e.g. paraffinic oils or aromatic oils based on aromatic hydrocarbons
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- A—HUMAN NECESSITIES
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
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- 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
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- A—HUMAN NECESSITIES
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Epidemiology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Insects & Arthropods (AREA)
- Dermatology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Organic Chemistry (AREA)
- Animal Husbandry (AREA)
- Zoology (AREA)
- Medicinal Preparation (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Description
雄子豚(1ヶ月齢)を採取し、腹部を電気シェーバーで脱毛し、脱毛部位の皮膚を、保湿剤としてのグリセリン溶液で被覆した。子豚は試験前に屠殺した。無毛皮膚を採取し、皮下脂肪を除去し、皮下脂肪を除去した無毛皮膚を、清浄にするために蒸留水で繰り返しすすいだ。皮膚表面上の残留蒸留水を濾紙で吸引し、それによってex vivo皮膚を得た。
経皮的実験には改良フランツ垂直型拡散セルを用いた。レセプターチャンバーに撹拌機を入れた。子豚の皮膚(子豚の腹部皮膚)をドナーチャンバーとレセプターチャンバーとの間に置き、真皮をレセプター溶液に面するように固定した。レセプター溶液として生理食塩水7mLをレセプターチャンバーに添加した。その後、約0.5gの試料を子豚の皮膚に塗布し、有効浸透面積は3.14cm2であった。拡散セルを恒温水槽(37℃±0.5℃)に入れ、撹拌速度300rpmの恒温水槽の下に磁気撹拌機を置いた。1時間、2時間、4時間、6時間、8時間、12時間、24時間後にレセプター溶液5mLを採取し、ブランクレセプター溶液を同量添加した。得られた試料を遠心分離した。上清を採取し、チモロールマレイン酸塩(又はチモロール)の含量をHPLCで測定した。
チモロールマレイン酸塩ゲルの調製工程:
2%のヒドロキシプロピルメチルセルロース及び15%のグリセロールを秤量し、均一に混合し、適量の水を加え、混合物をゲルマトリックスとして使用した。5%のチモロールマレイン酸塩を取り、適当量の水で完全に溶解(50℃に加熱攪拌)し、チモロールマレイン酸塩溶液を得た。溶解したチモロールマレイン酸塩溶液をゲルマトリックスに添加して、混合物Aを得た。2%のラウロカパムと5%のプロピレングリコールの混合物を秤量し、均一に混合して混合物Aに加え、得られた混合物を十分に攪拌してチモロールマレイン酸塩ゲル試料を得た。
5%の白色蜜蝋及び88%の白色ワセリンを適当な容器に量り入れ、80℃の水浴中で加熱して融解し、よくかき混ぜながら混合物Aを調製し、混合物Aの温度を若干下げた後、5%のチモロール及び2%のラウロカパムを量り、混合物Aに加え、かき混ぜて完全に溶解した。加熱装置を取り除き、試料を撹拌し続けて試料を室温に冷却し、チモロール軟膏試料を得た。
表2に示すように、所定量の軽質流動パラフィン、白色ワセリン及び白色蜜蝋を、80℃の水浴中の適当な容器内で秤量して、完全に溶解させて混合物Aを得た。混合物Aを65℃に冷却し、保温した。所定量のチモロールを秤量し、混合物Aに加えて6分間攪拌してチモロールを完全に溶解させ、攪拌を続けて室温まで冷却し、試料を得た。
薬物の経皮効果は治療効果に直接関係し、先行技術はまた、プロピレングリコール、ラウロカパム、メントール、テトラデシル硫酸ナトリウム、ゲラニオール、アネトール、及びデシルメチルスルホキシドのような経皮浸透促進剤の使用がチモロールの経皮効果を改善できることも教示している。
投与量は、医薬品の安全性及び有効性に影響を及ぼす。投与量を正確に制御するために、この実施形態では、定量ポンプ装置を備えたチューブに軟膏をパッケージした。理論的には、定量ポンプは加圧するたびに一定量の薬剤を圧送するが、チューブ内の試料の粘度及び硬度が圧送量の精度に影響する可能性がある。安定性試験の結果の解析に基づき、5%の軽質流動パラフィン及び10%の軽質流動パラフィンをそれぞれ含む試料の排気誤差を検討した(詳細は表6参照)。10個の連続したポンプ重量のRSDを比較することにより、ポンプ量の一貫性が良好な処方をさらに選択した。
チモロール軟膏(0.5重量%のチモロール、84.5重量%の白色ワセリン、5重量%の白色蜜蝋、及び10重量%の軽質流動パラフィンを含む)及びチモロールマレイン酸塩点眼液(市販の武漢光製薬(株))の結果を、表7に示すように、累積浸透量、皮内滞留量、及び皮上残留量に関して比較した。
表8に示すように、所定量の軽質流動パラフィン、白色蜜蝋及び白色ワセリンを、乾燥ビーカー中で秤量し、80℃の水浴中で加熱し、融解させ、そして約30分間撹拌することにより十分に混合した。その後、混合物を撹拌し、室温に冷却し、充填し、ブランク試料を得た。調製した異なる処方のブランク軟膏試料には、それぞれ1、2、3及び4の番号を付けた。30名の任意被験者を選択し、各試料を約0.5g絞り出し、前腕部に塗布した。試料を均一に塗布し、約20分間放置した後、軟膏塗布部位の皮膚反応を観察し、発赤、腫脹、刺痛、そう痒の反応に応じて採点し、評価した。
1点:軽度の紅斑、観察可能;
2点:顕著な紅斑、肉眼で容易に確認できるもの、軽度の浮腫又は軽度の丘疹状反応;
3点:紅斑、丘疹;
4点:重大な浮腫;
5点:紅斑、浮腫、丘疹;
6点:水疱
7点:試験部位を超えた分布域での強い反応。
Claims (8)
- チモロールを含む医薬の調製における経皮浸透促進組成物の使用であって、
前記経皮浸透促進組成物が、白色ワセリン、軽質流動パラフィン、及び白色蜜蝋からなり、
前記白色ワセリンの量が68重量%以上93重量%以下であり、
前記軽質流動パラフィンの量が5重量%以上30重量%以下であり、
前記白色蜜蝋の量が2重量%以上8重量%以下である、
経皮浸透促進組成物の使用。 - 有効成分としてチモロールを含み、経皮浸透促進組成物を含む組成物であって、
前記経皮浸透促進組成物が、白色ワセリン、軽質流動パラフィン、及び白色蜜蝋からなり、
前記白色ワセリンの量が68重量%以上93重量%以下であり、
前記軽質流動パラフィンの量が5重量%以上30重量%以下であり、
前記白色蜜蝋の量が2重量%以上8重量%以下である、
組成物。 - メトプロロール及びプロプラノロールの1つ以上を更に含む、請求項2に記載の組成物。
- チモロールの濃度が0.1重量%以上3重量%以下である、請求項3に記載の組成物。
- 有効成分としてチモロールを含み、0.1重量%以上3重量%以下のチモロール、68重量%以上93重量%以下の白色ワセリン、5重量%以上30重量%以下の軽質流動パラフィン、及び2重量%以上8重量%以下の白色蜜蝋を含み、他のアジュバントを含むか又は含まない組成物。
- 請求項5に記載の組成物であって、前記組成物が以下の組み合わせの1つから選択される、組成物:
0.5重量%のチモロール、89.5重量%の白色ワセリン、5重量%の白色蜜蝋及び5重量%の軽質流動パラフィン;
0.5重量%のチモロール、84.5重量%の白色ワセリン、5重量%の白色蜜蝋及び10重量%の軽質流動パラフィン;
0.5重量%のチモロール、79.5重量%の白色ワセリン、5重量%の白色蜜蝋及び15重量%の軽質流動パラフィン;
0.5重量%のチモロール、69.5重量%の白色ワセリン、5重量%の白色蜜蝋及び25重量%の軽質流動パラフィン。 - 乳児血管腫を治療するための医薬の調製における請求項2~6のいずれか一項に記載の有効成分としてチモロールを含む組成物の使用。
- 有効成分としてチモロールを含み、請求項2~6のいずれか一項に記載の有効成分としてチモロールを含む組成物を含む軟膏。
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