JP5179757B2 - 口腔粘膜を介して催眠剤をデリバリーするための組成物及びその使用方法 - Google Patents
口腔粘膜を介して催眠剤をデリバリーするための組成物及びその使用方法 Download PDFInfo
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- JP5179757B2 JP5179757B2 JP2006553364A JP2006553364A JP5179757B2 JP 5179757 B2 JP5179757 B2 JP 5179757B2 JP 2006553364 A JP2006553364 A JP 2006553364A JP 2006553364 A JP2006553364 A JP 2006553364A JP 5179757 B2 JP5179757 B2 JP 5179757B2
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- JP
- Japan
- Prior art keywords
- zolpidem
- buffer system
- minutes
- mucosa
- bicarbonate
- 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.)
- Expired - Fee Related
Links
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Description
本明細書は、米国仮出願に変えられた2004年2月17日出願の米国出願第10/783,118号、及び2004年8月3日出願の米国仮出願第60/598,629号について優先権を請求し、それらのそれぞれを全ての目的についてそれを全体として本明細書中に援用する。
不眠症は人の寝入る又は眠りを維持する能力に影響する状態である。それは毎年何百万人ものアメリカ人に影響する、最もよくある睡眠障害である。短期、中期又は長期活性催眠剤として入手可能なベンゾヂアゼピンは不眠症の治療において有用であることが証明されている。これらのベンゾヂアゼピンはベンゾヂアゼピン1(オメガ1)及びベンゾヂアゼピン2(オメガ2)受容体に非選択的に結合すると考えられる。この非選択的結合は催眠薬としてのベンゾヂアゼピン化合物の使用に関連する、可能性のある問題のいくつかの原因でありうる。例えば、いくつかのベンゾヂアゼピンは記憶、認識、及び精神運動性機能を妨害すると考えられる。さらに、変えられた睡眠体系に関連する問題、ぶり返し不眠症、二日酔いの影響、及び乱用の可能性はベンゾヂアゼピンの使用に関して報告されている。
本発明は口腔粘膜を介した催眠剤のデリバリーのための新規組成物を提供する。詳細には、本発明に係る組成物中の緩衝系は唾液のpHを約7.8超のpHまで上げ、それにより上記催眠剤のそのイオン化形からその脱イオン化形への実質的に完全な変換を促進する。その結果、催眠剤の用量は、驚くほど低い患者間変動性(例えば、同じ患者における消化管を介した吸収より低い変動性)で、口腔粘膜により速やかに及び効果的に吸収される。さらに、口腔粘膜を介した上記催眠剤のデリバリーは上記薬物の肝臓初回通過代謝を有利にバイパスし、及び胃腸腔内での上記薬物の酵素分解を避ける。不眠症の如き睡眠障害を治療するための本発明に係る組成物の使用方法もまた提供される。
(a)イミダゾピリヂン、ヂヒドロピロロピラジン、ピラゾロピリミヂン、及びそれらの医薬として許容される塩から成る群から選ばれる催眠剤;
(b)口腔への投与後約5分以内で完全な頬側の又は舌下の崩壊を提供する担体;及び
(c)炭酸塩及び重炭酸塩を含む二種混合型緩衝系
を含み、ここで、上記二種混合型緩衝系は唾液の開始pHに関わらず、唾液のpHを約7.8超のpHまで上げる。
(a)イミダゾピリヂン、ヂヒドロピロロピラジン、ピラゾロピリミヂン、及びそれらの医薬として許容される塩から成る群から選ばれる催眠剤;
(b)担体;及び
(c)炭酸塩及び重炭酸塩を含む二種混合型緩衝系
を含み、ここで、上記二種混合型緩衝系は唾液の開始pHに関わらず、唾液のpHを約7.8超のpHまで上げる。
(a)イミダゾピリヂン、ヂヒドロピロロピラジン、ピラゾロピリミヂン、及びそれらの医薬として許容される塩から成る群から選ばれる催眠剤;
(b)担体;及び
(c)炭酸塩又は重炭酸塩及び第二の緩衝剤を含む二種混合型緩衝系
を含み、ここで、上記二種混合型緩衝系は唾液の開始pHに関わらず、唾液のpHを約7.8超のpHまで上げる。
(a)イミダゾピリヂン、ヂヒドロピロロピラジン、ピラゾロピリミヂン、及びそれらの医薬として許容される塩から成る群から選ばれる催眠剤;
(b)担体;及び
(c)酸化金属及びクエン酸塩、リン酸塩又はホウ酸塩を含む二種混合型緩衝系
を含み、ここで、上記二種混合型緩衝系は唾液の開始pHに関わらず、唾液のpHを約7.8超のpHまで上げる。
(a)イミダゾピリヂン、ヂヒドロピロロピラジン、ピラゾロピリミヂン、及びそれらの医薬として許容される塩から成る群から選ばれる催眠剤;
(b)担体;及び
(c)炭酸塩、重炭酸塩、及び第三の緩衝剤を含む三種混合型緩衝系
を含み、ここで、上記三種混合型緩衝系は唾液の開始pHに関わらず、唾液のpHを約7.8超のpHまで上げる。
(a)イミダゾピリヂン、ヂヒドロピロロピラジン、ピラゾロピリミヂン、及びそれらの医薬として許容される塩から成る群から選ばれる催眠剤;
(b)担体;及び
(c)炭酸塩又は重炭酸塩及び酸化金属、クエン酸塩、リン酸塩、及びホウ酸塩から成る群から選ばれる2以上の緩衝剤を含む緩衝系
を含み、ここで、上記緩衝系は唾液の開始pHに関わらず、唾液のpHを約7.8超のpHまで上げる。
上記患者に治療的に有効な量のイミダゾピリヂン、ヂヒドロピロロピラジン、ピラゾロピリミヂン、及びそれらの医薬として許容される塩から成る群から選ばれる催眠剤;担体;及び炭酸塩及び重炭酸塩を含む二種混合型緩衝系を含む組成物を投与すること
を含み、ここで、上記二種混合型緩衝系は唾液の開始pHに関わらず、唾液のpHを約7.8超のpHまで上げる。
I.定義
本明細書中で使用されるとき、以下の用語は別段の定めなき限り、それらに帰する意味を有する。
本発明は口腔粘膜を介した催眠剤のデリバリーのための新規組成物を提供する。詳細には、本発明に係る組成物中の緩衝系は唾液のpHを約7.8超のpHまで上げ、それにより上記催眠剤のそのイオン化形からその脱イオン化形への実質的に完全な変換を促進する。その結果、催眠剤の用量は、最大血漿濃度(Cmax)及び最大血漿濃度に達する時間(Tmax)の点で驚くほど低い患者間変動性で、口腔粘膜により速やかに及び効果的に吸収される。さらに、口腔粘膜を介した上記催眠剤のデリバリーは上記薬物の肝臓初回通過代謝を有利にバイパスし、及び胃腸腔内での上記薬物の酵素分解を避け、経口(例えば、錠剤)投与のための伝統的な投与形態に比較して、上記催眠剤の増大されたバイオアベイラビリティ及び治療活性の開始までの減少された時間をもたらす。さまざまな型の不眠症の如き睡眠障害を治療するための本発明に係る組成物の使用方法もまた提供される。
1の局面において、本発明は口腔粘膜を介した催眠剤のデリバリーのための固体組成物を提供し、上記組成物は:
(a)イミダゾピリヂン、ヂヒドロピロロピラジン、ピラゾロピリミヂン、及びそれらの医薬として許容される塩から成る群から選ばれる催眠剤;
(b)口腔への投与後約5分以内の完全な頬側の又は舌下の崩壊を提供する担体;及び
(c)炭酸塩及び重炭酸塩を含む二種混合型緩衝系
を含み、ここで、上記二種混合型緩衝系は唾液の開始pHに関わらず、唾液のpHを約7.8超のpHまで上げる。
(a)イミダゾピリヂン、ヂヒドロピロロピラジン、ピラゾロピリミヂン、及びそれらの医薬として許容される塩から成る群から選ばれる催眠剤;
(b)担体;及び
(c)炭酸塩及び重炭酸塩を含む二種混合型緩衝系
を含み、ここで、上記二種混合型緩衝系は唾液の開始pHに関わらず、唾液のpHを約7.8超のpHまで上げる。
(a)イミダゾピリヂン、ヂヒドロピロロピラジン、ピラゾロピリミヂン、及びそれらの医薬として許容される塩から成る群から選ばれる催眠剤;
(b)担体、及び
(c)炭酸塩又は重炭酸塩及び第二の緩衝剤を含む二種混合型緩衝系
を含み、ここで、上記二種混合型緩衝系は唾液の開始pHに関わらず、唾液のpHを約7.8超のpHまで上げる。
(a)イミダゾピリヂン、ヂヒドロピロロピラジン、ピラゾロピリミヂン、及びそれらの医薬として許容される塩から成る群から選ばれる催眠剤;
(b)担体;及び
(c)酸化金属及びクエン酸塩、リン酸塩又はホウ酸塩を含む二種混合型緩衝系
を含み、ここで、上記二種混合型緩衝系は唾液の開始pHに関わらず、唾液のpHを約7.8超のpHまで上げる。
(a)イミダゾピリヂン、ヂヒドロピロロピラジン、ピラゾロピリミヂン、及びそれらの医薬として許容される塩から成る群から選ばれる催眠剤;
(b)担体;及び
(c)炭酸塩、重炭酸塩、及び第三の緩衝剤を含む三種混合型緩衝系
を含み、ここで、上記三種混合型緩衝系は唾液の開始pHに関わらず、唾液のpHを約7.8超のpHまで上げる。
(a)イミダゾピリヂン、ヂヒドロピロロピラジン、ピラゾロピリミヂン、及びそれらの医薬として許容される塩から成る群から選ばれる催眠剤;
(b)担体;及び
(c)炭酸塩又は重炭酸塩及び酸化金属、クエン酸塩、リン酸塩、及びホウ酸塩から成る群から選ばれる2以上の緩衝剤を含む緩衝系
を含み、ここで、上記緩衝系は唾液の開始pHに関わらず、唾液のpHを約7.8超のpHまで上げる。
上記患者に治療的に有効な量のイミダゾピリヂン、ヂヒドロピロロピラジン、ピラゾロピリミヂン、及びそれらの医薬として許容される塩から成る群から選ばれる催眠剤;担体;及び炭酸塩及び重炭酸塩を含む二種混合型緩衝系を含む組成物を投与することを含み、ここで、上記二種混合型緩衝系は唾液の開始pHに関わらず、唾液のpHを約7.8超のpHまで上げる。
本発明に係る催眠剤は好ましくはゾルピデム又はアルピデムの如きイミダゾピリヂン化合物;ゾペクロンの如きヂヒドロピロロピラジン化合物;ザレプロン又はインヂプロンの如きピラゾロピリミヂン化合物;それらの医薬として許容される塩;及びそれらの組み合わせから選ばれる。より好ましくは、上記催眠剤は全ての好適な形態のゾルピデムである。
本明細書中に示される組成物の緩衝系は唾液の開始pHに関わらず、唾液のpHを約7.8超のpHまで上げることができる。このようにして、上記緩衝系は上記催眠剤の実質的に全てをそのイオン化形からその脱イオン化形に変換することを助ける。あるいは、上記緩衝系は、はじめに脱イオン化形である上記催眠剤が脱イオン化形のままであることを確実にすることを助ける。塩基性緩衝剤が典型的に本発明に係る緩衝系において使用されるが、当業者は、酸性剤もまた、上記緩衝系が全体として唾液のpHを約7.8超のpHまで上げる限り、上記緩衝系のpHを合わせるために使用されうることを理解するであろう。
好適な炭酸塩及び重炭酸塩は上記に示される。上記緩衝系において使用される炭酸塩又は重炭酸塩の量は、残りの成分と共に使用されるとき、開始pHに関わらず、唾液pHを約7.8以上、好ましくは約8.5以上、及びより好ましくは約9以上(例えば、約9〜11)のpHまで上げるのに十分な量である。
本発明に係る組成物は、例えば、錠剤(例えば、チュワブル、遅延溶解性、即時溶解性)、ピル、カプセル、ロゼンジ、ガム、粉末、溶液、懸濁物、エマルジョン、エーロゾル等の如き、固体、半固体、凍結乾燥粉末又は液体投与形態の形態をとりうる。好ましくは、上記投与形態はチューイングガム、溶解錠剤、チュワブル錠、キャンディ又はロゼンジである。
上記投与形態がチューイングガムであるとき、本発明に係る組成物は催眠剤又はその医薬として許容される塩、ガム基礎の如き担体、二種混合型又は三種混合型緩衝系、及び場合により保護剤を含む。上記チューイングガム組成物は潤滑剤、浸潤剤、乳化剤、可溶化剤;懸濁剤、保存剤、甘味剤、香味剤、及び着色剤をさらに含みうる。典型的に、上記チューイングガム組成物は約0.001重量%〜約10.0重量%、より典型的には約0.01重量%〜約5.0重量%、及びさらにより典型的には約0.1重量%〜約3.0重量%の催眠剤(いかなる選択された形態でも、その遊離塩基形当たりとして計測される)を含む。当業者は、上記割合は利用される催眠剤の特定の起源、最終配合品中に所望される催眠剤の量に、及び所望される催眠剤の特定の放出速度に因り変化するであろうことを理解する。チューイングガム組成物の二種混合型又は三種混合型緩衝系は少なくとも約7.8、好ましくは少なくとも約8.5、及びより好ましくは少なくとも約9(例えば、約9〜11)を超える最終唾液pHを提供する。上記チューイングガム組成物は典型的に約20%〜約95%のガム基礎、より典型的には約30%〜約85%、及び最も典型的には約50%〜約70%のガム基礎を含む。
上記投与形態が溶解錠剤(すなわち、崩壊錠剤)又はチュワブル錠の如き錠剤であるとき、本発明に係る組成物は催眠剤又はその医薬として許容される塩、結合剤の如き担体、及び二種混合型又は三種混合型緩衝系を含む。上記錠剤組成物は潤滑剤、浸潤剤、乳化剤、可溶化剤;懸濁剤、保存剤、甘味剤、香味剤、着色剤、及び崩壊剤をさらに含みうる。典型的に、本発明に係る錠剤組成物は約0.001重量%〜約10.0重量%、及びより典型的には約1.0重量%〜約5.0重量%の催眠剤(いかなる選択された形態でも、その遊離塩基形当たりとして計測される)を含む。いくつかの態様において、約4.0重量%の催眠剤が使用される。当業者は、上記割合は利用される催眠剤の特定の起源、最終配合品中に所望される催眠剤の量に、及び所望される催眠剤の特定の放出速度に因り変化するであろうことを理解する。上記錠剤組成物の二種混合型又は三種混合型緩衝系は少なくとも約7.8、好ましくは少なくとも約8.5、及びより好ましくは少なくとも約9(例えば、約9〜11)を超える最終唾液pHを提供する。
上記投与形態がロゼンジ又はキャンディであるとき、本発明に係る組成物は催眠剤又はその医薬として許容される塩、結合剤の如き担体、及び二種混合型又は三種混合型緩衝系を含む。上記ロゼンジ又はキャンディ組成物は潤滑剤、浸潤剤、乳化剤、可溶化剤;懸濁剤、保存剤、甘味剤、香味剤、着色剤、及び崩壊剤をさらに含みうる。ロゼンジ及びキャンディの一般的な議論は、例えば、Pharmaceutical Dosage Forms, Volume I: Tablets, 2ndEd., Marcel Dekker, Inc., New York, N.Y., pages 75−418(1989)中に提供される。典型的に、本発明に係るロゼンジ組成物は約0.001重量%〜約10.0重量%、及びより典型的には約1.0重量%〜約5.0重量%の催眠剤(いかなる選択された形態でも、その遊離塩基形当たりとして計測される)を含む。いくつかの態様において、約4.5重量%の催眠剤が使用される。当業者は、上記割合は利用される催眠剤の特定の起源、最終配合品中に所望される催眠剤の量に、及び所望される催眠剤の特定の放出速度に因り変化するであろうことを理解する。上記ロゼンジ組成物の二種混合型又は三種混合型緩衝系は少なくとも約7.8、好ましくは少なくとも約8.5、及びより好ましくは少なくとも約9(例えば、約9〜11)を超える最終唾液pHを提供する。
本発明に係る組成物は、例えば、睡眠障害の治療のための、治療適用において有用である。重要なことに、本発明に係る組成物は唾液pHを、唾液の開始pHに関わらず、約7.8超のpHまで上げることにより、最大血漿濃度(Cmax)及び最大血漿濃度に達するまでの時間(Tmax)の点で驚くほど低い患者間変動性で、口腔粘膜を介した催眠剤の速やかな及び予想可能なデリバリーを提供する。特に、口腔粘膜を介した上記治療用剤のデリバリーは肝臓初回通過代謝、胃腸腔内での分解、及び吸収中の薬物損失を避ける。その結果、上記治療用剤は伝統的な経口(例えば、錠剤)投与でより実質的に短い時間で及び実質的に高い濃度で体系循環に達する。
以下の実施例は請求される発明を例示するために、限定するためではなく、提供される。
実施例1.ゾルピデム膜分析
この実施例はゾルピデム投与形態についての膜透過に対するpH調節の有益な効果を例示する。
この実施例は本発明に係るゾルピデムチューイングガム組成物を示す。
ゾルピデムは上記に示されるようにチューイングガム組成物として調合されうる。これらの態様において、上記チューイングガムの単位用量又は一盛りは(その酒石酸塩形で計測されるとき)約0.1〜約100ミリグラム(mg)、好ましくは約1〜約50mg、及びより好ましくは約2〜約25mgのゾルピデムを含む。他の態様において、上記単位用量は約2〜約20mg、好ましくは約5〜約15mgのゾルピデムを含む。例えば、約10重量%〜約25重量%までの過剰のゾルピデムは「過多量」として又は「洗い流される」ことが予想されうる、及びそうでなければ咀嚼中に放出されない又は吸収されない量として添加されうる。
この実施例は本発明に係る遅延溶解性、即時溶解性、及びチュワブルゾルピデム錠剤組成物を示す。
ゾルピデムは上記に示されるように錠剤組成物として調合されうる。これらの態様において、上記錠剤の単位用量又は一盛りは約0.1〜約100ミリグラム(mg)、好ましくは約1〜約50mg、及びより好ましくは約2〜約25mgのゾルピデム(その酒石酸塩形で計測される)を含む。他の態様において、上記単位用量は約2〜約20mg、好ましくは約2〜約15mg、及びより好ましくは約2〜約10mg、例えば、約2、3、4、5、6、7、8、9又は10mgのゾルピデムを含む。特に好ましい態様において、上記単位用量は市販の経口錠剤中で典型的に使用される用量より少ない用量のゾルピデムを含むが、同等の又はより大きいバイオアベイラビリティ及び治療活性の開始、並びに薬物吸収のより低い変動性を有する。上記態様において、約2〜約5mgのゾルピデムの単位用量は好ましく、約4mgのゾルピデムの単位用量は特に好ましい。例えば、約10重量%〜約25重量%までの過剰のゾルピデムは「過多量」として又は「洗い流される」ことが予想されうる及びそうでなければ錠剤溶解及び/又は咀嚼中に放出されない又は吸収されない量として添加されうる。
ゾルピデム遅延溶解性錠剤を以下の手順にしたがって作出した。ステアリン酸マグネシウムUSP(0.35kg)を#20メッシュスクリーンにとおし、及びその後0.810kgマンニトール顆粒状USP及び9.569kgソルビトールを含む配合器にロードした。上記材料を10分間配合した。酒石酸ゾルピデムEP(0.034kg)を乳鉢及び乳棒を用いてステアリン酸マグネシウム(0.02kg)と共に挽いた。残りの二酸化珪素を0.228kgのステアリン酸マグネシウムと共に、挽き続けながら上記乳鉢に添加した。上記挽いた材料をプラスティック袋に移し、及び上記乳鉢を0.01kg二酸化珪素を用いてすすぎ、及び上記袋に移した。上記袋の内容物をその後5分間配合した。
ゾルピデム即時溶解性錠剤を以下の手順にしたがって作出した。マンニトール(3.633kg)及びソルビトール(0.469kg)を10分間配合した。炭酸ナトリウム(0.330kg)、重炭酸ナトリウム(0.165kg)、天然ペパーミントフレーバー(0.125kg)、天然メントールフレーバー(0.025kg)、及びスクラロース(0.020kg)を別々に10分間配合した。ステアリン酸マグネシウム(0.075kg)、及び酒石酸ゾルピデム(0.034kg)を10分間配合し、及びその後#12メッシュスクリーンにとおした。上記配合した混合物をその後共に添加し、及び錠剤に圧縮した。この手順を用いることにより、上記即時溶解性錠剤中の薬物(すなわち、ゾルピデム)の平均粒子サイズは、約75〜約100ミクロンの典型的な平均薬物粒子サイズに比較して、約20ミクロンである。さらに、上記即時溶解性錠剤中の薬物の平均粒子サイズは担体成分(例えば、ガム基礎、結合剤等)の平均粒子サイズより小さい又はそれに等しい。
ゾルピデムチュワブル錠を以下の手順にしたがって作出した。ステアリン酸マグネシウムUSP(0.35kg)を#20メッシュスクリーンにとおし、及びその後0.810kgマンニトール顆粒状USP、9.569kgソルビトール、及び0.020kgステアリン酸を含む配合器にロードした。上記材料を10分間配合した。酒石酸ゾルピデムEP(0.034kg)を乳鉢と乳棒を用いてステアリン酸マグネシウム(0.02kg)と共に挽いた。残りの二酸化珪素を0.228kgのステアリン酸マグネシウムと共に、挽き続けながら上記乳鉢に添加した。上記挽いた材料をプラスティック袋に移し、及び上記乳鉢を0.01kgの二酸化珪素を用いてすすぎ、及び上記袋に移した。上記袋の内容物をその後5分間配合した。
この実施例は本発明に係るゾルピデムロゼンジ組成物を例示する。
ゾルピデムは上記に示されるようにロゼンジ又はキャンディ組成物として調合されうる。これらの態様において、上記ロゼンジの単位用量又は一盛りは約0.1〜約100ミリグラム(mg)、好ましくは約1〜約50mg、及びより好ましくは約2〜約25mgのゾルピデム(その酒石酸塩形で計測されるとき)を含む。他の態様において、上記単位用量は約2〜約20mg、好ましくは約2〜約15mg、及びより好ましくは約2〜約10mg、例えば、約2、3、4、5、6、7、8、9又は10mgのゾルピデムを含む。特に好ましい態様において、上記単位用量は市販の経口錠剤中で典型的に使用される用量より少ない用量のゾルピデムを含むが、同等の又はより大きなバイオアベイラビリティ及び治療活性の開始、並びに薬物吸収のより低い患者間変動性を有する。上記態様において、約2〜約5mgのゾルピデムの単位用量は好ましく、約4mgのゾルピデムの単位用量は特に好ましい。例えば、約10重量%〜約25重量%までの過剰のゾルピデムは「過多量」として又は「洗い流される」ことが予想されうる及びそうでなければロゼンジ溶解及び/又は咀嚼の間に放出されない又は吸収されない量として添加されうる。
この実施例は表3にしたがって作出されたゾルピデム即時溶解性錠剤及び表4にしたがって作出されたゾルピデムロゼンジについての平均溶解プロファイルを示す。
試験される組成物は以下のとおりであった:
1.ゾルピデム即時溶解性錠剤(典型的に約5分で舌下で溶解する)。
2.ゾルピデムロゼンジ(典型的に約2〜3分で舌下で溶解する)。
方法=USP
装置=USP装置II
媒体=リン酸緩衝液pH6.8
媒体体積=500ml
スピンドルスピード=25rpm
温度=37℃
この実施例は用量が同等の市販の経口錠剤に比較した、本発明に係るゾルピデム錠剤の薬物動態プロファイルを示す2の研究を提供する。
舌下投与されるゾルピデム配合品の薬物動態プロファイルを評価するために、23mgの重炭酸ナトリウム及び17mgの炭酸ナトリウムで9.8のpHに緩衝した10mgのゾルピデム粉末化錠剤(配合品A)を8人の健康な患者(5人男性、3人女性)において決定した。配合品Aは患者の舌の下に投与され、及び非常に速い溶解速度、すなわち、約1〜約3分以内を有した。行われた研究は固定シークエンスオープンラベル薬物動態研究であり、その中で患者は10分間の期間(「飲み込み時間」)にわたり2、5又は10分毎の速度で唾液を飲み込んだ。例えば、2分の飲み込み時間は10分間の期間にわたり2分毎に唾液を飲み込むことをいう(すなわち、それぞれ2分間の5ブロック);5分の飲み込み時間は10分間の期間にわたり5分毎に唾液を飲み込むことをいう(すなわち、それぞれ5分間の2ブロック);及び10分の飲み込み時間は10分間の期間にわたり10分毎に唾液を飲み込むことをいう(すなわち、10分間の1ブロック)。血清血液サンプルを8時間の期間にわたり集め、及び上記血漿を、例えば、高圧液体クロマトグラフィー(HPLC)−タンデムマススペクトロメトリー(MS)を用いて、ゾルピデム値について分析した。
舌下投与されるゾルピデム配合品の薬物動態プロファイルをさらに評価するために、表2にしたがって作出された10mgのゾルピデム遅延溶解性錠剤(配合品C)及び表3にしたがって作出された10mgのゾルピデム即時溶解性錠剤(配合品D)を8人の健康な患者において用量が同等のAmbien(商標)経口錠剤配合品(配合品B)と比較した。配合品C(SL錠剤)は患者の舌の下に投与され、及び遅い溶解速度、すなわち、約10分以内を有した。配合品D(FS錠剤)は患者の舌の下に投与され、及び速い溶解速度、すなわち、約5分以内を有した。配合品B(PO Ambien)は180mlの水と共に経口で投与された。行われた研究は3方向クロスオーバー固定シークエンス薬物動態研究であり、その中で患者は配合品C及びDについて10分間の期間(「飲み込み時間」)にわたり2又は5分毎の速度で唾液を飲み込んだ。血清血液サンプルを12時間にわたり集め、及び血漿を、例えば、高圧液体クロマトグラフィー(HPLC)−タンデムマススペクトロメトリー(MS)を用いて、ゾルピデム値について分析した。
Claims (9)
- 患者において不眠症を治療するための固体の医薬組成物であって、
1mg〜5mgの量のゾルピデム、
炭酸塩緩衝液及び重炭酸塩緩衝液、
バインダー、及び
崩壊剤
を含み、ここで前記医薬組成物は、前記患者の口腔粘膜を通してのゾルピデムのデリバリーを提供し、ここで、前記炭酸塩緩衝液と重炭酸塩緩衝液は、1:1〜1:10の炭酸塩:重炭酸塩重量比で存在し、かつ、患者の唾液のpHを、7.8より高いpHに上昇させ、さらにここで、該医薬組成物の少なくとも75%が、投与後口腔内で5分以内に溶解する、前記医薬組成物。 - 前記固体の医薬組成物が、舌下に投与される、請求項1に記載の医薬組成物。
- 前記口腔粘膜が、舌下粘膜、頬側粘膜、歯肉粘膜、口蓋粘膜、及び口唇の内側から成る群から選ばれる、請求項1に記載の医薬組成物。
- ゾルピデムの治療有効量が30分以内に血流中に入る、請求項1に記載の医薬組成物。
- 前記炭酸塩緩衝液と重炭酸塩緩衝液が、1:1〜1:5の炭酸塩:重炭酸塩重量比で存在する、請求項1に記載の医薬組成物。
- 前記炭酸塩緩衝液と重炭酸塩緩衝液が、1:1〜1:2の炭酸塩:重炭酸塩重量比で存在する、請求項1に記載の医薬組成物。
- 前記固体の医薬組成物がロゼンジである、請求項1に記載の医薬組成物。
- 前記固体の医薬組成物が錠剤である、請求項1に記載の医薬組成物。
- 前記炭酸塩緩衝液と重炭酸塩緩衝液が、患者の唾液の開始pHに拘らず、7.8より高いpHに上昇させる、請求項1に記載の医薬組成物。
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-
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- 2005-02-16 EP EP05713712A patent/EP1715853A4/en not_active Withdrawn
- 2005-02-16 KR KR1020157007690A patent/KR20150038745A/ko not_active Application Discontinuation
- 2005-02-16 KR KR1020067018935A patent/KR20070030178A/ko not_active Application Discontinuation
- 2005-02-16 KR KR1020127031305A patent/KR20130006523A/ko not_active Application Discontinuation
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- 2005-02-16 US US11/060,641 patent/US7658945B2/en not_active Expired - Fee Related
- 2005-02-16 KR KR1020137025409A patent/KR20130116378A/ko not_active Application Discontinuation
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US7658945B2 (en) | 2010-02-09 |
US20170065517A1 (en) | 2017-03-09 |
EP1715853A4 (en) | 2012-07-18 |
KR20140104986A (ko) | 2014-08-29 |
KR20130116378A (ko) | 2013-10-23 |
KR20150038745A (ko) | 2015-04-08 |
US7682628B2 (en) | 2010-03-23 |
EP1715853A1 (en) | 2006-11-02 |
US20120328533A1 (en) | 2012-12-27 |
US20100291004A1 (en) | 2010-11-18 |
US20150290177A1 (en) | 2015-10-15 |
KR20130006523A (ko) | 2013-01-16 |
US20050226925A1 (en) | 2005-10-13 |
JP2007523091A (ja) | 2007-08-16 |
KR20070030178A (ko) | 2007-03-15 |
US20080008753A1 (en) | 2008-01-10 |
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