JP2023505409A - 持続型の眼用薬物送達システムとしてシクロスポリンミセルを含むin-situゲル - Google Patents
持続型の眼用薬物送達システムとしてシクロスポリンミセルを含むin-situゲル Download PDFInfo
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- JP2023505409A JP2023505409A JP2022524724A JP2022524724A JP2023505409A JP 2023505409 A JP2023505409 A JP 2023505409A JP 2022524724 A JP2022524724 A JP 2022524724A JP 2022524724 A JP2022524724 A JP 2022524724A JP 2023505409 A JP2023505409 A JP 2023505409A
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Abstract
Description
本出願は、2019年8月18日に出願された米国出願第62/888,534号に対する優先権を主張する。本明細書中、同文献の内容全体を参考のため援用する。
上記製剤と共に調製されたサンプル1~8に対し、粒子径分析器を用いてミセル粒子径および分布または多分散性指数(PDI)について試験を行った(表3)。結果を図1~図8に示す。上記のように調製および試験されたサンプル1~8中のミセルの粒子径は、RESTASIS(登録商標)またはCEQUA(登録商標)よりも小さいことが確認された。
一定量の塩化ナトリウムを高精度に秤量し、85gの超純水を徐々に均等に付加した。塩化ナトリウムが完全に溶解するまで当該溶液を攪拌した後、上記したゲル化剤を連続攪拌下において徐々に均等に追加した。この溶液を90℃の水槽内に投入し、1時間攪拌した。次に、混合物を室温まで冷却した。0.05gのシクロスポリンAを秤量し、冷却された溶液を攪拌しつつ、シクロスポリンAを溶液に徐々に付加した。最終量である100gへ水を付加した。
NaHCO3:2.18g;NaCl:6.78g;CaCl2・2H2O:0.084g;KCl:1.38g.をそれぞれ測定し、1,000mLの脱イオン水中へ溶解させた。
20mLのサンプル溶液をサンプルシリンダーへ付加し、5分間放置した。次に、ローターを回転させて、25℃における初期粘度値を測定した。34℃下において(人工涙-40:7):20mLのサンプル溶液をサンプルシリンダーへ付加し、5分間保持した。次に、ローターを回転させて、初期粘度値を測定した。
0.05%シクロスポリンAを含むミセル眼用ゲルの製剤を以下に示す。
規定量の水をビーカー内への噴射のために用意し、回転式攪拌機を用いて一定速度で攪拌した。上記規定量の脱アセチル化ジェランガムを上記水中に攪拌下において分散させた後、90℃の水槽中へ攪拌下において1時間投入した。この溶液を取り出し、溶液が高温の間に0.45μmの微小多孔性フィルタ膜を通じてフィルタリングして殺菌した。溶液1:上記規定量のシクロスポリンAを高精度に秤量し、上記規定量のポリオキシル20セトステアリルエーテルを付加して、シクロスポリンAを溶解させた後、適切な量の塩化ナトリウム、マニトール、ヒドロキシブチレートおよびトロメタミン塩酸緩衝液をそれぞれ付加した。次に、この溶液を0.45μm微小多孔性膜を通じて送って、溶液2を得た。溶液1および溶液2を攪拌によって混合し、点眼ボトルに装填して、シクロスポリンナノミセルin-situゲルを得た。
上記において調製された0.05%シクロスポリンミセルin-situゲルの粒子径および分布の測定を、粒子径分析器を用いて行った。結果を図9および表13中に示す。
in vitro放出試験を上記溶解方法により行い、100mL人工涙を媒体として用いた。温度は34±0.5℃に設定した。振盪頻度を100r/minとした。1mLのサンプルをアンプルへ付加した後、4mLの人工涙を付加し、上記アンプルを一定温度および湿度発振器内に配置した。0.5、1、2、4、8、12、24、48時間後において、各溶液を2mL取り出し、新規の媒体を2mLだけ付加した。サンプルを0.45μmの微小多孔性膜フィルタを通じてフィルタリングし、20μLの濾過液を液体クロマトグラフィーシステム中へ注入して、シクロスポリンAの内容物(量)を決定した。同じ方法を用いて、RESTASIS(登録商標)およびCEQUA(登録商標)を用いて調製されたナノミセルのin vitro放出プロファイルを測定した。放出曲線を、累積薬物放出対時間のパーセンテージとしてプロットした。実施例3中のRESTASIS(登録商標)、CEQUA(登録商標)およびサンプルについて、累積放出データを比較した。放出曲線を図12および表14に示す。
0.05%シクロスポリンAを含むミセル眼用ゲルの製剤を以下に示す。
シクロスポリンA0.05wt%、DGG0.3wt%、HS-151.0wt%、塩化カリウム0.2wt%、グリセリン0.8wt%、パラベン0.05%、プロピルパラベン0.01%、適切な量のリン酸緩衝液溶液および噴射水を付加して、0.05%シクロスポリンミセルを含む眼用ゲルを100g作製した(表16)。
規定量の水をビーカー中へ注入し、回転式攪拌機によって一定速度で攪拌した。規定量のDGGを上記水中において攪拌下で分散させた後、90℃の水槽内に攪拌下において1時間配置した。この溶液を取り出して、高温状態のまま0.45μm微小多孔性フィルタ膜を通じてフィルタリングし、殺菌済み溶液1を得た。規定量のシクロスポリンAを高精度に秤量し、規定量のHS-15を付加してシクロスポリンAを溶解させ、規定量の塩化カリウム、グリセリン、パラベン、プロピルパラベンおよびリン酸緩衝液を付加した。次に、溶液を0.45μm微小多孔性フィルタを通過させて、溶液2を得た。溶液1および溶液2を攪拌により混合し、点眼ボトル中に注入して、シクロスポリンミセル眼用ゲルを得た。
0.05%シクロスポリンAを含むミセル眼用ゲルの具体的処方を下記に示す。
規定量のSoluplusを250mLビーカー中において秤量した。10mLの無水エタノールを付加して、規定量のシクロスポリンAを溶解させた。溶液を80℃まで加熱してエタノールを蒸発させると、無色透明の膜が得られた。20mlの脱イオン水を付加して上記膜を15時間水和させて、溶液1を作製した。プロピレングリコール、塩化カルシウム、カリウムソルビン酸塩、脱アセチル化ジェランガムを規定量に従って秤量し、70mlの脱イオン水中に付加して、ジェランガムが完全に溶解するまで90℃まで攪拌下において1時間加熱した。冷却後に溶液2を得た。溶液2を攪拌下において溶液1中へ徐々に付加し、最後にpH調節をホウ酸塩緩衝液によって行った。脱イオン水を付加して、最終重量の100gを得た。サンプルを殺菌のために0.22μm微小多孔性膜フィルタを通じてフィルタリングした。
0.05%シクロスポリンAを含むミセル眼用ゲルの製剤を以下に示す。
規定量の水をビーカー中に注入し、回転式攪拌機により一定速度で攪拌した。規定量の脱アセチル化ジェランガムを上記水中において攪拌下において分散させた後、90℃の水槽中に攪拌下において1時間配置した。この溶液を取り出し、0.45μmの微小多孔性フィルタ膜を通じて高温状態でフィルタリングして、殺菌された溶液1を得た。規定量のシクロスポリンAを高精度に秤量し、規定量のHS-15およびRH-40を付加してシクロスポリンAを溶解させ、適切な量の塩化ナトリウム、マニトール、パラベン、プロピルパラベンおよびトロメタミン塩酸塩緩衝液を付加した。次に、この溶液を0.45μmの微小多孔性膜フィルタを通過させて、溶液2を得た。溶液1および溶液2を攪拌によって混合させて、シクロスポリンミセル眼用ゲルを得て、これを点眼ボトル内に装填した。
上記の調製された0.05%シクロスポリンミセルを含有するin-situゲルの粒子径および分布インデックスの測定を粒子径分析器を用いて行った。結果を以下の図17および表25中に羅列する。
0.09%シクロスポリンAを含むミセル眼用ゲルの製剤を以下に示す。
規定量の水をビーカー中に注入し、回転式攪拌機により一定速度で攪拌した。規定量の脱アセチル化ジェランガムを上記水中において攪拌下において分散させた後、90℃の水槽中に攪拌下において1時間配置した。この溶液を取り出し、0.45μmの微小多孔性フィルタ膜を通じて高温状態でフィルタリングして、殺菌された溶液1を得た。規定量のシクロスポリンAを高精度に秤量し、規定量のHS-15およびRH-40を付加してシクロスポリンAを溶解させ、適切な量の塩化ナトリウム、マニトール、パラベン、プロピルパラベンおよびトロメタミン塩酸塩緩衝液を付加した。次に、この溶液を0.45μmの微小多孔性膜フィルタを通過させて、溶液2を得た。溶液1および溶液2を攪拌によって混合させて、シクロスポリンミセル眼用ゲルを得て、これを点眼ボトル内に装填した。
粒子径および分布の測定
in vitro透析放出試験を、サンプル1~6、RESTASIS(登録商標)およびCEQUA(登録商標)に対して行った。サンプル1~6の製剤/組成のリストを以下の表32中に示す。
発明の要旨
技術的問題
問題の解決法
本発明の有利な効果
Claims (20)
- シクロスポリンA、可溶化剤、浸透圧調節剤、pH調節剤、粘度調節剤および水を含む水性の眼用製剤であって、粒子径が20nmを超えないミセルが、前記製剤中に含まれるシクロスポリンおよび前記可溶化剤と共に形成される、水性の眼用製剤。
- ゲル形成多糖類ポリマーをさらに含み、前記眼内への前記製剤の滴下時において、ゲルが生理的温度において一定の粘度上昇と共にin situ形成される、請求項1に記載の水性の眼用製剤。
- 前記製剤中のシクロスポリンの濃度は0.01重量%~5重量%である、請求項1または2に記載の水性の眼用製剤。
- 前記可溶化剤は、ポリオキシル20セトステアリルエーテル、ポリオキシル15ヒドロキシステアリン酸、Soluplus、ポリオキシエチレン水添ヒマシ油、ポリオキシエチレンヒマシ油、ビタミンEポリエチレングリコールスクシナート、またはこれらの任意の組み合わせを含む、請求項1~3のうちいずれか1項に記載の水性の眼用製剤。
- 前記製剤中の前記可溶化剤の濃度は、0.01重量%~10重量%である、請求項1~4のうちいずれか1項に記載の水性の眼用製剤。
- 前記多糖類は、0.1重量%~0.6重量%の濃度において前記製剤中に含まれる、請求項2~5のうちいずれか1項に記載の水性の眼用製剤。
- 前記多糖類は、脱アセチル化ジェランガム(DGG)、キサンタン、アルギン酸ナトリウム、カラギーナン、またはこれらの任意の混合物を含む、請求項2~6のうちいずれか1項に記載の水性の眼用製剤。
- 前記多糖類は、脱アセチル化ジェランガム(DGG)を含む、請求項2~7のうちいずれか1項に記載の水性の眼用製剤。
- 前記浸透圧調節剤は、塩化ナトリウム、マニトール、グルコース、ソルビトール、グリセリン、ポリエチレングリコール、プロピレングリコール、またはこれらの任意の組み合わせを含む、請求項1~8のうちいずれか1項に記載の水性の眼用製剤。
- 前記製剤中の前記浸透圧調節剤の濃度は、0.01重量%~10重量%である、請求項1~9のうちいずれか1項に記載の水性の眼用製剤。
- 防腐剤をさらに含み、前記防腐剤は、ブチルパラベン、塩化ベンザルコニウム、臭化ベンザルコニウム、クロルヘキシジン、ソルビン酸塩、クロロブタノール、またはこれらの任意の組み合わせを含む、請求項1~10のうちいずれか1項に記載の水性の眼用製剤。
- 前記製剤中の前腐剤の濃度は、0.01重量%~5重量%である、請求項10に記載の水性の眼用製剤。
- 前記pH調節剤は、ホウ酸、ホウ酸ナトリウム、リン酸緩衝液、トロメタミン、トロメタミン塩酸緩衝液、水酸化ナトリウム、塩酸、クエン酸、クエン酸ナトリウム、またはこれらの任意の組み合わせを含む、請求項1~12のうちいずれか1項に記載の水性の眼用製剤。
- 前記製剤中の前記pH調節剤の濃度は、0.01重量%~5重量%である、請求項1~13のうちいずれか1項に記載の水性の眼用製剤。
- 前記製剤中の前記粘度調節剤の濃度は、0.01重量%~5重量%である、請求項1~14のうちいずれか1項に記載の水性の眼用製剤。
- 前記粘度調節剤は、カルボキシルメチルセルロース、ナトリウムセルロース、ヒドロキシプロピルセルロース、ヒドロキシエチルセルロース、またはこれらの任意の組み合わせを含む、請求項1~15のうちいずれか1項に記載の水性の眼用製剤。
- 前記ミセルの平均粒子径は、10nm~20nmの範囲である、請求項1~16のうちいずれか1項に記載の水性の眼用製剤。
- 水、シクロスポリンAおよび可溶化剤を含むミセルであって、前記ミセルの粒子径は、20nmを超えない、ミセル。
- 前記可溶化剤は、ポリオキシル20セトステアリルエーテル、ポリオキシル15ヒドロキシステアリン酸、Soluplus、ポリオキシエチレン水添ヒマシ油、ポリオキシエチレンヒマシ油、ビタミンEポリエチレングリコールスクシナート、またはこれらの任意の組み合わせを含み、シクロスポリンは、シクロスポリンAである、請求項18に記載のミセル。
- ドライアイ疾患の症状または状態を治療または軽減させることを必要とする対象におけるドライアイ疾患の症状または状態を治療または軽減させる方法であって、治療的に有効な量の、請求項1~17のうちいずれか1項に記載の水性の眼用製剤または請求項18もしくは19に記載のミセルを前記対象の眼へ局所投与することを含む、方法。
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JP2022524724A Withdrawn JP2023505409A (ja) | 2019-08-18 | 2020-08-18 | 持続型の眼用薬物送達システムとしてシクロスポリンミセルを含むin-situゲル |
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AU2009260572B2 (en) * | 2008-05-28 | 2015-07-23 | Alcon Research, Ltd. | Self-preserved emulsions |
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US10022324B2 (en) * | 2013-10-15 | 2018-07-17 | Syracuse University | Polysialic acid-polycaprolactone micelles for drug delivery |
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