JP6347858B2 - 不妊症治療用経腟ホスホジエステラーゼ阻害剤含有医薬組成物 - Google Patents
不妊症治療用経腟ホスホジエステラーゼ阻害剤含有医薬組成物 Download PDFInfo
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- JP6347858B2 JP6347858B2 JP2017018277A JP2017018277A JP6347858B2 JP 6347858 B2 JP6347858 B2 JP 6347858B2 JP 2017018277 A JP2017018277 A JP 2017018277A JP 2017018277 A JP2017018277 A JP 2017018277A JP 6347858 B2 JP6347858 B2 JP 6347858B2
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- phosphodiesterase inhibitor
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Description
ホスホジエステラーゼ阻害剤は環状ヌクレオチドホスホジエステラーゼ(PDE)のファミリの酵素作用を阻害する一群の薬物であり、該酵素は環状ヌクレオチド一リン酸cAMP(環状アデノシン一リン酸)及びcGMP(環状グアノシン一リン酸)の内部リン酸エステル結合の加水分解を触媒する酵素である。従って、ホスホジエステラーゼ阻害剤は、第二の細胞間メッセンジャcAMPとcGMPの代謝を阻害するように作用する。
カップル受精能とは、正常な性的活動を介して健常な子孫をもち得るカップルの能力と定義される。
本発明の目的は、経腟投与用の医薬組成物であって、ホスホジエステラーゼ阻害剤及び少なくとも1種の薬学的に許容される添加剤を含んでなり、不妊症カップルの治療に使用する組成物である。
本発明の組成物とそれを投与するための説明書を含むキットも、本発明の一部である。
[ミルリノン、イブジラスト及びペントキシフィリンの精子運動能に対する効果のインビトロアッセイ]
各事例において、相当するホスホジエステラーゼ阻害剤(ロリプラム、ミルリノン、イブジラスト及びペントキシフィリン)を精子標品調製に適する市販の媒体(スパームリンス(SpermRinse)登録商標)に溶解し、所望の濃度とした。スパームリンス(SpermRinse)(登録商標)溶液は、重炭酸塩とHEPES(N−2−(ヒドロキシエチル)ピペラジン−N’−エタンスルホン酸)緩衝媒体を含み、ヒト血清アルブミンを含有する。
[経腟投与用ペントキシフィリンゲルの調製]
以下の成分はゲル400gを調製するために使用した。
[不妊症カップルの治療におけるペントキシフィリンの有効性のアッセイ]
不妊治療におけるペントキシフィリンの経腟投与の有効性は、夫婦間人工授精に感受性である場合と同じ基準に従い選択した20組のカップルの一群にてアッセイした。すなわち、彼らは少なくとも1年の間、避妊せずに性的関係を維持したが、妊娠し得なかった。
・精子無力症の事例と正常精子の事例両方における、精子の運動能の質の改善。
・WHO分類によるA型精子の有意な数。
・子宮頸管粘液特性におけるそのフィランシア、透明性及び白血球素質の改善。
Claims (10)
- ホスホジエステラーゼ阻害剤を含む医薬組成物であって、
前記ホスホジエステラーゼ阻害剤が、ペントキシフィリンを含み、
前記医薬組成物は、性交の前及び/又は後に経腟投与されて、子宮頸管粘液特性における、その透明性、フィラメント形成能及び白血球素質の改善、および、実質的に精液特性の異常に起因する不妊症のカップルの治療に使用されるものであることを特徴とする医薬組成物。 - 請求項1に記載の医薬組成物であって、前記ホスホジエステラーゼ阻害剤を、重量比で3%から6%含んでなることを特徴とする医薬組成物。
- 請求項1または2に記載の医薬組成物であって、前記精液特性の異常は、低精子含量(乏精子症)、低精子運動性(精子無力症)、異常形態(奇形精子症)、又はこれらの組み合わせ(乏精子奇形精子症)であることを特徴とする医薬組成物。
- 請求項1から3のいずれか1項に記載の医薬組成物であって、前記ホスホジエステラーゼ阻害剤は排卵誘発剤と組み合わせて投与されることを特徴とする医薬組成物。
- 請求項1から4のいずれか1項に記載の医薬組成物であって、前記医薬組成物がゲル、軟膏又はクリームの形状であることを特徴とする医薬組成物。
- 請求項5に記載の医薬組成物であって、前記医薬組成物が、親水性ゲル形状であり、前記ホスホジエステラーゼ阻害剤、ポリヒドロキシアルコール、水、カルボマ及びアルカリ剤を含んでなり、
前記水を重量比で75%から95%含んでなることを特徴とする医薬組成物。 - 請求項6に記載の医薬組成物であって、前記ポリヒドロキシアルコールが、プロピレングリコール、ジプロピレングリコール、グリセリン、1,2,6−ヘキサントリオール、ソルビトール、ポリエチレングリコール100(PEG100)、ポリエチレングリコール200(PEG200)、ポリエチレングリコール300(PEG300)及びポリエチレングリコール400(PEG400)からなる群より選択されることを特徴とする医薬組成物。
- 請求項7に記載の医薬組成物であって、前記ポリヒドロキシアルコールがプロピレングリコールであることを特徴とする医薬組成物。
- 請求項6に記載の医薬組成物であって、前記アルカリ剤がトリエタノールアミンであることを特徴とする医薬組成物。
- 請求項6に記載の医薬組成物であって、前記医薬組成物が、重量比で2%から10%からなるホスホジエステラーゼ阻害剤、重量比で2%から15%からなるプロピレングリコール、重量比で0.5%から2%からなるカルボマ、重量比で0.1%から1%からなるトリエタノールアミン、及び重量比で80%から92%からなる水を含んでなることを特徴とする医薬組成物。
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JPS5229318B2 (ja) | 1972-03-30 | 1977-08-01 | ||
DE2413935A1 (de) | 1974-03-20 | 1975-10-16 | Schering Ag | 4-(polyalkoxy-phenyl)-2-pyrrolidone |
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PH18762A (en) | 1979-11-26 | 1985-09-20 | Sterling Drug Inc | 5-(pyridinyl)-2(1h)-pyridinones useful as cardiotonic agents |
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US20140194448A1 (en) | 2014-07-10 |
MX2013015280A (es) | 2014-08-01 |
ES2395801B1 (es) | 2014-06-06 |
SI2724716T1 (en) | 2018-03-30 |
PT2724716T (pt) | 2017-12-26 |
EP2724716B1 (en) | 2017-11-22 |
ES2395801A1 (es) | 2013-02-15 |
NO2724716T3 (ja) | 2018-04-21 |
KR101948355B1 (ko) | 2019-02-14 |
US9220679B2 (en) | 2015-12-29 |
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EP2724716A1 (en) | 2014-04-30 |
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