JP6874222B2 - デュタステリドの局所組成物 - Google Patents
デュタステリドの局所組成物 Download PDFInfo
- Publication number
- JP6874222B2 JP6874222B2 JP2020523064A JP2020523064A JP6874222B2 JP 6874222 B2 JP6874222 B2 JP 6874222B2 JP 2020523064 A JP2020523064 A JP 2020523064A JP 2020523064 A JP2020523064 A JP 2020523064A JP 6874222 B2 JP6874222 B2 JP 6874222B2
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- JP
- Japan
- Prior art keywords
- dutasteride
- composition
- hair growth
- topical application
- oral
- 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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- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K31/58—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids containing heterocyclic rings, e.g. danazol, stanozolol, pancuronium or digitogenin
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- 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
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- 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
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Description
本発明は、5α−レダクターゼインヒビター、とくにデュタステリドを含む、毛の喪失、アンドロゲン性脱毛症を防ぐためおよび毛の成長を促進するための局所適用のための組成物に関する。本発明は、かかる局所適用のための組成物の調製のためのプロセスおよびそれらの使用方法も含む。
これまでに実施された研究によると、毛の喪失の原因には、ホルモンの不均衡などの内分泌系障害;自己免疫神経系障害、血液循環障害などの循環系障害によって引き起こされる過剰な皮脂形成;毛根の栄養不足、アレルギー、細菌感染、遺伝的要因、心理的ストレス、大気汚染または食物などの環境要因、および加齢などが含まれることが見出されている。
1. 使用されるデュタステリドの量が従来の処置剤(経口デュタステリドおよびフィナステリド)の半分未満、より好ましくは5分の2未満であるにもかかわらず、毛の喪失を防ぐおよび毛の成長を促進する効果を、従来の処置剤(経口デュタステリド&フィナステリド)のそれと同等またはそれより高く提供する。
2. 従来の処置剤(経口デュタステリドおよびフィナステリド)の全身性の副作用がほとんどない。
3. 効果が迅速に発現するため、処置の開始から毛の喪失を効果的に防ぐことができる;および
4. 約70%の効果をもたらす従来の処方薬(経口デュタステリドおよびフィナステリド)とは異なり、毛の喪失患者にほぼ100%の効果をもたらす。
本発明の目的は、デュタステリドまたはその薬学的に許容し得る塩を含む、毛の喪失を防ぐためおよび毛の成長を促進するための局所適用のための組成物を提供することである。
本発明は、5α−レダクターゼインヒビター、とくにデュタステリドまたはその薬学的に許容し得る塩を含む、毛の喪失を防ぐためおよび毛の成長を促進するための局所適用のための組成物に関する。
本発明は、5α−レダクターゼインヒビター、とくにデュタステリドまたはその薬学的に許容し得る塩を含む、毛の喪失を防ぐためおよび毛の成長を促進するための局所適用のための組成物に関する。態様において、本発明は、その塩、エステル、異性体、溶媒和物、水和物、および多形を包含するデュタステリドの向上した局所の送達のための医薬組成物を提供する。
(a) デュタステリドをエタノールに溶解すること、
(b) ステップaの内容物に、中鎖トリグリセリドおよびヒマシ油を添加すること、
(c) 当該混合物を溶液に形成すること、
を含む。
1. デュタステリドをエタノールに溶解した。
2. ステップ1の内容物に中鎖トリグリセリドおよびヒマシ油を添加し、溶液を形成した。
3. 上記の溶液を好適な容器に充填した。
1. デュタステリドをエタノールに溶解した。
2. ステップ1の内容物に中鎖トリグリセリドおよびヒマシ油を添加し、溶液を形成した。
3. 上記の溶液を好適な容器に充填した。
1. デュタステリドをエタノールに溶解した。
2. ステップ1の内容物に中鎖トリグリセリドおよびヒマシ油を添加し、溶液を形成した。
3. 上記の溶液を好適な容器に充填した。
1. デュタステリドをエタノールに溶解した。
2. ステップ1の内容物に中鎖トリグリセリドおよびヒマシ油を添加し、溶液を形成した。
3. 上記の溶液を好適な容器に充填した。
1. デュタステリドをエタノールに溶解した。
2. ステップ1の内容物に中鎖トリグリセリドおよびヒマシ油を添加し、溶液を形成した。
3. 上記の溶液を好適な容器に充填した。
比較例1において、表6に示す以下の成分を使用して、フィナステリド活性成分を溶解し、経口薬剤を含む組成物を調製した。
毛の成長および毛の厚み測定をウィスターラットで行った。ウィスターラットを、各グループが13匹有するグループに分けた。ウィスターラットにおける研究は、21日間行った。研究の「0」日目に、ウィスターラットの脇腹器官周りの全体にわたって毛を電気バリカンで剃り、2x2cmのエリアを使用して、例2〜13のデュタステリド組成物の局所適用を、例2〜例13の100μl/kgの用量で、および参考例1の組成物(フィナステリドを経口で0.1mg/kgの用量で)と共に、21日の間、1日1回(毎日午後10時と11時の間)行った。100μlの1%テストステロンを、21日間毎日皮下注射し(毎日午前9時)、効果(毛の成長および厚み)を、動物を犠牲にした後、22日目に評価した。剃られたラットの正常対照(テストステロンの投与なし)も13匹からなるグループで設けた。
スコア0: 毛の成長が観察されない
スコア1: 20%未満の成長を観察
スコア2: 20%〜40%未満の成長を観察
スコア3: 40%〜60%未満の成長を観察
スコア4: 60%〜80%未満の成長を観察
スコア5: 80%〜100%成長
毛の厚みを、200X倍率のマイクロスコープに取り付けられたCaslite毛分析機器で測定し、例2〜13の組成物で処置された各グループにおける毛の厚み(μm)の結果を、参考経口フィナステリドおよび正常対照と共に表7に表す。
Claims (3)
- 毛の喪失を防ぐためおよび毛の成長を促進するための局所適用のための組成物であって、組成物が、組成物の総重量に基づいて約0.01wt%〜約0.06wt%のデュタステリド、約25wt%〜約35wt%の中鎖トリグリセリド、約25wt%〜約35wt%のエタノールおよび約35wt%〜約45wt%のヒマシ油を含み、ここでデュタステリドが、約0.1〜約0.5mgの一日用量を提供する量において組成物に含有される、前記組成物。
- デュタステリドが、約0.2mgの一日用量を提供する量で組成物に含有される、請求項1に記載の組成物。
- 組成物が、組成物の総重量に基づいて、約0.022wt%(0.02%w/vに相当)のデュタステリド、約30wt%の中鎖トリグリセリド、約30wt%のエタノールおよび約40wt%のヒマシ油を含む、請求項1に記載の組成物。
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