JP6876079B2 - ヒアルロン酸ナトリウムとカルボキシメチルセルロースを含む人工涙液 - Google Patents
ヒアルロン酸ナトリウムとカルボキシメチルセルロースを含む人工涙液 Download PDFInfo
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- JP6876079B2 JP6876079B2 JP2019022506A JP2019022506A JP6876079B2 JP 6876079 B2 JP6876079 B2 JP 6876079B2 JP 2019022506 A JP2019022506 A JP 2019022506A JP 2019022506 A JP2019022506 A JP 2019022506A JP 6876079 B2 JP6876079 B2 JP 6876079B2
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Description
Bereth J.Beard、Wendy Blanda、David Marsh、Peter Simmons、Joseph G.Vehige、Haixia LiuおよびSteven Matsumoto。
本出願は、2013年3月14日に出願された米国仮特許出願第61/785,857号および2013年2月1日に出願された米国仮特許出願第61/759,710号の利益を請求し、これらすべては、その全体が参考として本明細書に組み込まれる。
表2:製剤
以下に示すある試験において、0.5%のCMC溶液および0.1%のHA溶液について、0.5%のCMCおよび0.1%のHAを両方とも含有する溶液(上の表の製剤1)と比較して、粘度を試験した。7種類の異なる試験周波数で、組み合わせた製剤の粘度は、予想された値(個々の製剤の値の和によって計算)よりも大きかった。このことは、単一のポリマーの代わりに組み合わせを利用すると、予想される量よりも少ないCMCおよび/またはHAを用いることによって、望ましい粘度を得ることができることを示す。
表3:ずり薄化
2種類のCMC−HA製剤を用い、ヒトボランティアに対して試験を行った。第1の製剤は、表1の製剤1として上に設定したような0.5%のCMC/0.1%のHAの製剤(「EDNP−1」)を使用した。第2の製剤は、表1の製剤2として設定したような0.5%のCMC/0.15%のHAの製剤(「EDNP−2」)を使用した。この2種類の製剤を、ドライアイの治療に有効であることが知られている既存の生成物(0.5%のCMC、塩およびPurite(登録商標)を含むRefresh(登録商標)Tears(「Refresh」))と比較した。この試験で使用するRefresh製品は、厳密にいえば、治療活性がほとんどないコントロール(例えば、純粋な生理食塩水)を表さないことを示すことが重要である。むしろ、Refresh生成物は、ドライアイの治療に効果的であることが知られている確立された成功した製品を表す。
別の臨床試験をヒトボランティアに対して実施した。ここで、365人のコンタクトレンズユーザーをランダムに、6種類のヒドロゲル、ケイ素ヒドロゲルおよび硬いガス透過性コンタクトレンズによって階層化し2:1治療アロケーションに分けた。これらのボランティアに、1日に最低で4回、90日間にわたって、それぞれの眼に試験点眼薬1〜2滴を点眼するように指示した。これらの使用の1つに、挿入前にコンタクトレンズ内側表面に1〜2滴置くことによって、コンタクトレンズを装着準備してもよい。この試験において、製剤1を、すでに記載したRefresh Tears(登録商標)(「Refresh」)点眼薬と比較した。
Claims (3)
- 約0.5%(w/v)のカルボキシメチルセルロースナトリウム、約0.1(w/v)のヒアルロン酸ナトリウム、約0.5%〜約1.0%(w/v)のグリセリン、少なくとも1つの緩衝化剤、少なくとも1つの賦形剤、少なくとも1つのpH調整剤および量調整のための水を含む、まばたき中の角膜への分布を改良するための人工涙液として有用な点眼製剤であって、
少なくとも1つの緩衝化剤が、約0.7%(w/v)のホウ酸、約0.2%(w/v)のホウ酸ナトリウム十水和物ならびに約0.1%(w/v)のクエン酸ナトリウム二水和物であり、
少なくとも1つの賦形剤が約0.14%(w/v)の塩化カリウム、約0.006%(w/v)の塩化カルシウム二水和物、約0.006%(w/v)の塩化マグネシウム六水和物ならびに約0.5%のエリトリトールであり、
少なくとも1つのpH調整剤が製剤のpHを7.2に調節するのに十分な量の水酸化ナトリウムおよび塩酸である、前記点眼製剤。 - さらに、レボカルニチンを含む、請求項1に記載の点眼製剤。
- 約0.5%(w/v)のカルボキシメチルセルロースナトリウム、約0.9%(w/v)のグリセリン、約0.10%(w/v)のヒアルロン酸ナトリウム、約0.01%(w/v)のPurite(登録商標)、約0.7%(w/v)のホウ酸、約0.2%(w/v)のホウ酸ナトリウム十水和物、約0.1%(w/v)のクエン酸ナトリウム二水和物、約0.14%(w/v)の塩化カリウム、約0.006%(w/v)の塩化カルシウム二水和物、約0.006%(w/v)の塩化マグネシウム六水和物、約0.5%のエリトリトール、約0.25%のレボカルニチン、製剤のpHを7.2に調節するのに十分な量の水酸化ナトリウムおよび塩酸、および量調整のための水を含む、請求項1に記載の点眼製剤。
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