JP6004549B2 - 消化酵素を含む組成物の溶出試験の方法 - Google Patents
消化酵素を含む組成物の溶出試験の方法 Download PDFInfo
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- JP6004549B2 JP6004549B2 JP2014524476A JP2014524476A JP6004549B2 JP 6004549 B2 JP6004549 B2 JP 6004549B2 JP 2014524476 A JP2014524476 A JP 2014524476A JP 2014524476 A JP2014524476 A JP 2014524476A JP 6004549 B2 JP6004549 B2 JP 6004549B2
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Description
式中、溶出率(%)は放出されたAPIの%であり、分析手順に示したように算出され;バッチリパーゼアッセイはバッチリパーゼ活性であり;表示リパーゼ活性は、薬剤製品のラベルに表示されたリパーゼ活性である。
機器:LS 50B蛍光スペクトロメーター(Perkin Elmer)、LS 55蛍光スペクトロメーター(Perkin Elmer)、Lambda 20 UV−VISスペクトロメーター(Perkin Elmer)、786 Titrando Potentiometric Titration System(Metrohm)、VK−7025溶出槽(Vankel)、Premier 5100溶出槽(Distek)、USP Apparatus 1−バスケット(酸性段階用);USP Apparatus 2−パドル(腸溶性段階用)。
薬剤製品の標準液の調製
標準液は、解析中の剤形の中にある薬剤製品の同じロットを用いて調製する。7,000USPリパーゼ単位に相当する量のパンクレリパーゼビーズ(Zenpep(登録商標)ミニタブまたはマイクロタブ)を乳鉢に正確に秤量する。5〜6mLの腸溶性段階の溶媒を加え、製品の完全な分散液が得られるまで粉砕する。この懸濁液を500mLのメスフラスコに移す。乳鉢を数mLの腸溶性段階の溶媒で2〜3回リンスし、液体を500mLのメスフラスコに移す。メスフラスコに腸溶性段階の溶媒を全量が最終的に500mLになるまで加え、混合物を10分間撹拌する。溶出溶媒からサンプリングするアリコートを腸溶性段階の溶媒でさらに1:50に希釈する。この希釈によりAPIの最終濃度は、約0.3USPリパーゼ単位(約3μgのパンクレリパーゼ/mL)になる。この最終希釈は、溶出試験−エンドポイントのみ、および溶出試験−多点(溶出プロファイル)で行う。
溶出試験
バスケット装置を備えた溶出槽の各ベッセルに800mLの酸性段階の溶媒を加え、溶出溶媒を37℃で平衡させる。11,200USPリパーゼ単位(14USPリパーゼ単位/mL)に相当する量のパンクレリパーゼビーズ(Zenpepミニタブまたはマイクロタブ)に重みを付加し、こうして6つの独立したサンプルを調製し、バスケットに入れる。装置は100rpmで動作させる。1時間後、バスケットを溶媒から取り出し、数ミリリットルの水でリンスし、各バスケットの内容物を、パドル装置を備えた溶出槽の、腸溶性段階の溶媒800mLを37℃で含む対応するベッセルに移す。装置は100rpmで動作させる。30分後、放出されたAPIを測定するため、各ベッセルの溶出溶媒のアリコートをサンプリングする。溶出プロファイルの判定する際は、腸溶性段階の溶出溶媒の2.5mLのアリコートを10分、12分、15分、18分、30分にサンプリングする。試験中に溶媒の交換は行わず、算出の際には下記の補正係数により量の減少を考慮する。
溶出試験において放出された消化酵素(API、活性成分)の蛍光分光法による判定(総タンパク質アッセイ)
実施例2に記載されているような各バスケットからサンプリングされた溶出溶媒の各アリコートを腸溶性段階の溶媒で1:50に希釈する。以下の動作パラメーターで蛍光スペクトロメーターにて希釈溶液を読み取る:光路長1cmの石英キュベット;励起波長:280nm;発光波長(測定):346nm、励起スリット:6.0。エンドポイント:0.3USPリパーゼ単位/mLまたは約3μgのパンクレリパーゼ/mLでマーカーの標的濃度(API=パンクレリパーゼ;100%放出)を以下の計算により得る:
式中、ESMPはサンプルのブランクを差し引いた蛍光測定値(346nmの発光);ESTDは標準のブランクを差し引いた蛍光測定値(346nmの発光);WSMPはサンプル重量(mg);WSTDは標準の重量(mg);VSMPはサンプの希釈量(mL);VSTDは標準の希釈量(mL);FCは補正係数である(表1を参照)。
蛍光分光法による総タンパク質アッセイのバリデーション試験
溶出試験でパンクレリパーゼ組成物(Zenpep(登録商標)製剤)から放出されたAPIの総タンパク質量の蛍光定量の性能特性を以下のパラメーター:特異性、直線性、正確度、精度、定量限界、サンプルおよび標準液の安定性、標準液の調製における抽出の完全性の証明により評価し、結果を表2に要約する。
3つの測定法を用いたパンクレリパーゼビーズ(Zenpep(登録商標)ミニタブの溶出プロファイル:蛍光分光法による(非特異的アッセイ)総タンパク質量、プロテアーゼアッセイ(酵素特異的アッセイ)によるタンパク質分解活性、およびリパーゼアッセイ(酵素特異的アッセイ)による脂肪分解活性
本溶出試験は、上述の方法に従い2.5mLのアリコートを10分、12分、15分、18分、30分にサンプリングすることにより行う(実施例2を参照)。試験中に溶媒の交換は行わない。f2試験によって溶出プロファイルの類似性を証明するため、3つの方法の比較をSUPACアプローチ(Guidance for Industry「SUPAC MR:Modified release solid oral dosage forms.Scale−up and postapproval changes:chemistry,manufacturing,and controls,in vitro dissolution testing,and in vivo bioequivalence documentation」 Center for Drug Evaluation and Research(CDER),September 1997)に従い行う。3つの測定法ごとに必要な数のデータを作成するため、12の独立したサンプル(サンプル=パンクレリパーゼビーズの量、11,200UIに相当するZenpep(登録商標)ミニタブ)を1回につき3サンプルの群で合計4回解析する。
試験した各時点でのそれぞれの溶出値および全体平均を表3にまとめる。平均曲線を図1に示す。
試験した各時点でのそれぞれの溶出値および全体平均を表4にまとめる。平均曲線を図2に示す。算出の際は溶出試験中のリパーゼ分解を補正するため補正係数1.125を使用する。
試験した各時点でのそれぞれの溶出値および全体平均を表5にまとめる。平均曲線を図3に示す。
a.各時間間隔で両曲線の平均溶出値(n=12)を使用する、
b.1回のみの測定は、85%溶出時点より後に考慮すべきである、
c.任意のサンプリング時点での溶出プロファイル間の平均差は15%を超えないようにすべきである、
d.平均データの使用を可能にするには、初期の時点での変動係数(%)が20%を超えないようにし、他の時点では10%を超えないようにすべきである。
蛍光定量とリパーゼアッセイ(標準)の溶出プロファイルに関するf2試験は、全時点を考慮すると2本の曲線間で87.4%の類似性を示したのに対し、最後の3時点について算出すると類似性は83.3%であった。
蛍光定量とプロテアーゼアッセイ(標準)の溶出プロファイルに関するf2試験は、全時点を考慮したときに2本の曲線間で72.3%の類似性を示したのに対し、最後の3時点について算出すると類似性は68.6%であった。一般に、f2値が50を超える(50〜100)と、2本の曲線の同一性または同等性、したがって試験の性能の同一性または同等性が保証される。よって、f2試験によって溶出プロファイルの比較で得られた結果によれば、総タンパク質量の蛍光定量は、パンクレリパーゼ製剤(Zenpep(登録商標)製剤)の溶出試験におけるAPI放出の測定において、あらゆる点で酵素特異的方法と同等であるということができる。
バリデーションデータの比較
新しい蛍光試験と既知の認められたリパーゼ活性酵素アッセイ(USP法)と間の比較を完全なものにするため、表7を示す。
パンクレリパーゼビーズに対する蛍光分光法による溶出試験。
さらに、異なる製剤の力価を有するCreon(登録商標)という名称で市販されている他のパンクレリパーゼ製剤を用いて上記の例に記載されているような蛍光解析法を行う。その結果をZenpep(登録商標)として市販されているパンクレリパーゼビーズで得られた結果と比較し、図5に報告する。挙動の差は、製剤の力価の差および2つの製剤(Zenpep(登録商標)、Creon(登録商標))の粒子の表面積の差と一致する。力価の異なるZenpep(登録商標)には、2つのビーズサイズが使用されており、5,000UIカプセル剤の中にはより速い溶出プロファイルを示す小さい方のサイズ(平均直径約1.8mm)が使用される一方、20,000UIカプセル剤の中には大きい方のサイズ(平均直径約2.4)が使用されている。Creon(登録商標)ビーズは、平均直径約1mmであるが、Zenpep(登録商標)ビーズより著しく不規則であり、したがってZenpep(登録商標)より速い溶出プロファイルを示すが、バッチ間の再現性が低い(Creon(登録商標)の力価はすべて同じ顆粒を使用する)。
腸溶性試験(gastro−resistance)と組み合わせた溶出試験:FL試験とGR試験
FL試験:蛍光測定による溶出試験
バスケット装置(USP Apparatus 1−バスケット)を備えた溶出槽の各ベッセルに800mLの酸性段階の溶媒を入れ、溶出溶媒(酸性段階)を37℃で平衡させる。11,200USPリパーゼ単位(10カプセルのZenpep(登録商標)ミニタブまたはマイクロタブ)に相当する量のパンクレリパーゼビーズを秤量し、Apparatus 1の各バスケットに移す。装置は100rpmで動作させる。1時間後、バスケットを溶媒から取り出し、数ミリリットルの水でリンスし、各バスケットの内容物を、パドル装置(USP Apparatus 2)を備えた溶出槽の、腸溶性段階の溶媒800mLを37℃で含む溶出ベッセルに移す。装置は100rpmで動作させる。30分後10mL分の試験中の溶液を取り出し、試験管に移し、室温で平衡させる。腸溶性段階の溶媒でさらに希釈を行い、適切な濃度(約0.3USP単位/mL)を得る。溶液を氷水浴に保存し、読み取る前に手で振盪する。希釈溶液は、以下の動作パラメーターを用いて蛍光スペクトロメーターで読み取る:光路長1cmの石英キュベット;励起波長:=280nm;発光波長(測定)=346nm;励起スリット:=6.0。
式中、LCはサンプルの蛍光測定値(346nmの発光)であり;LSは標準の蛍光測定値(346nmの発光)であり;PSは標準の重量(mg)であり;PCはサンプル重量(mg)であり;USは標準の力価(リパーゼUSP単位/mg、バッチリパーゼアッセイ)であり;PMはカプセル内容物の平均重量(mg/カプセル)であり;ULは個々の投薬単位中のリパーゼの表示内容物(USP単位/カプセル)であり;VCはサンプルの希釈量(mL)であり;VSは標準の希釈量(mL)である。
800mLの酸性溶媒を、バスケット装置を備えた溶出槽の各ベッセル(USP Apparatus 1−バスケット)に入れ、次いで溶出溶媒を37℃で平衡させる。11,200USPリパーゼ単位(10カプセルのZenpep(登録商標)ミニタブまたはマイクロタブ)に相当する量のパンクレリパーゼビーズを秤量し、Apparatus 1の各バスケットに移す。装置は100rpmで動作させる。1時間後、バスケットを溶媒から取り出し、4℃の冷精製水900mLを含む1,000mLのビーカーにバスケットを浸漬して短時間(約5秒間)サンプルをリンスし、リンス溶媒を交換することなく、この工程を3回繰り返す。各バスケットの内容物をセラミック乳鉢に定量的に移し、5〜6mLの冷精製水を加える。サンプルの完全な分散液が得られるまでサンプル粉砕し、定量的に200mLのメスフラスコに集め、乳鉢の窪みをリンスする。この工程を2〜3回繰り返す。最終全量になるまで精製水を加える。適切な濃度(約14USP単位/mL、製品の100%の腸溶性(gastroresistance)を想定して利用できる理論的最高濃度)を得るため冷精製水でさらに希釈を行う。サンプル溶液は、滴定の直前に調製し、撹拌しながら氷水浴中に保存する。
式中、VMCはサンプルにより1分あたりに消化される0.1NのNaOHの量(mL/分)であり;AVMSは標準により1分あたりに消化される0.1NのNaOHの平均量(mL/分)であり;PCはサンプルの重量(mg)であり、PSは標準の重量(mg)であり;DCはサンプルの希釈量(mL)であり;DSは標準の希釈(mL)であり;USは標準の力価(リパーゼUSP単位/mg)であり;UCはバッチリパーゼアッセイ(USPリパーゼ単位/mg)である。
レベル1許容基準:個々のユニットのGR%は90%以下である;
レベル2許容基準:12ユニット(レベル1が6ユニット、レベル2が6ユニット)のGRの平均値は90%未満であり、各ユニットは75%より低い;
レベル3許容基準:24ユニット(レベル1が6ユニット、レベル2が6ユニット、レベル3が12ユニット)のGRの平均値は90%未満であり、各ユニットは75%より低い。
Claims (22)
- パンクレリパーゼ固形組成物から溶出溶媒中に放出される消化酵素の量を測定する方法において、前記組成物から前記溶出溶媒中に放出される消化酵素の前記量を測定するために蛍光分光法を使用するステップを含むことを特徴とする方法。
- 請求項1に記載の方法において、前記パンクレリパーゼ固形組成物は腸溶性パンクレリパーゼ組成物であることを特徴とする方法。
- 請求項1又は2の方法において、前記溶出溶媒は水、HCl溶液、人工胃液、緩衝液、人工腸液、少なくとも1種の界面活性剤を含む水溶液または緩衝液であることを特徴とする方法。
- 請求項1、2又は3に記載の方法において、(a)前記固形パンクレリパーゼ組成物から前記消化酵素を前記溶出溶媒中に放出させるステップと、b)前記蛍光を読み取り前記溶媒中の消化酵素の前記量を測定するステップとを含むことを特徴とする方法。
- 請求項1、2、3又は4に記載の方法において、前記溶出溶媒は経時的に用いられる少なくとも2種の溶媒からなることを特徴とする方法。
- 請求項5に記載の方法において、a)前記固形パンクレリパーゼ組成物を第1の溶出溶媒に加えるステップと、b)前記懸濁液を第2の溶出溶媒に移すステップと、c)前記消化酵素の前記放出を引き起こすステップと、d)溶出溶媒のアリコートをサンプリングするステップと、e)346nmで蛍光を読み取るステップと、f)放出された消化酵素の前記量を算出するステップとを含むことを特徴とする方法。
- 請求項6に記載の方法において、前記第1の溶出溶媒はpH約1〜約4.5を有する水性溶媒であり、前記第2の溶出溶媒は約5を超えるpHを有する水性緩衝液であることを特徴とする方法。
- 請求項6又は7に記載の方法において、前記第1の溶出溶媒はpH約1〜約2を有する水性溶媒であることを特徴とする方法。
- 請求項6、7又は8に記載の方法において、前記第2の溶出溶媒はpH約5.5〜約6.8を有する水性緩衝液であることを特徴とする方法。
- 請求項6、7、8又は9に記載の方法において、前記第1の溶出溶媒はpH約1.2を有する水性溶媒であり、前記第2の溶出溶媒はpH約6を有する水性緩衝液であることを特徴とする方法。
- 請求項1、2、3、4、5、6、7、8、9又は10に記載の方法において、前記パンクレリパーゼ組成物は合計で約750USPリパーゼ単位、約3,000USPリパーゼ単位、約4,200USPリパーゼ単位、約5,000USPリパーゼ単位、約6,000USPリパーゼ単位、約10,000USPリパーゼ単位、約10,500USPリパーゼ単位、約15,000USPリパーゼ単位、約16,800USPリパーゼ単位、約20,000USPリパーゼ単位、約21,000USPリパーゼ単位、約24,000USPリパーゼ単位、もしくは約25,000、もしくは約40,000USPリパーゼ単位またはこれらの倍数、あるいは約5,000PhEurリパーゼ単位、もしくは約10,000PhEurリパーゼ単位、もしくは約15,000PhEurリパーゼ単位もしくは約20,000PhEurリパーゼ単位もしくは約30,000PhEurリパーゼ単位、もしくは約40,000PhEurリパーゼ単位またはこれらの倍数を有することを特徴とする方法。
- 腸溶性(gastroresistance)試験と組み合わせた請求項1、2、3、4、5、6、7、8、9,10又は11に記載の方法において、腸溶性が水性溶媒中の前記組成物の残存リパーゼ活性を特定のリパーゼアッセイ法で決定することにより測定されることを特徴とする方法。
- 請求項12に記載の方法において、前記水性溶媒はpH約1〜約2を有することを特徴とする方法。
- 請求項12に記載の方法において、前記水性溶媒はpH約1.2を有することを特徴とする方法。
- 請求項13又は14に記載の方法において、前記固形組成物から溶出溶媒中に放出される消化酵素の量の蛍光分光法による前記測定は、前記腸溶性(gastroresistance)試験の前あるいは後に行われることを特徴とする方法。
- 請求項13、14又は15に記載の方法において、前記固形組成物から溶出溶媒中に放出される消化酵素の量の蛍光分光法による前記測定は、経時的に使用される少なくとも2種の溶媒からなる溶出溶媒中で行われることを特徴とする方法。
- 請求項16に記載の方法において、前記第1の溶出溶媒は酸性pH約1〜約4.5を有する水性溶媒であることを特徴とする方法。
- 請求項16又は17に記載の方法において、前記第1の溶出溶媒はpH約1〜約2を有する水性溶媒であることを特徴とする方法。
- 請求項16、17又は18に記載の方法において、前記第2の溶出溶媒は約5を超えるpHを有する水性緩衝液であることを特徴とする方法。
- 請求項16、17、18又は19に記載の方法において、前記第2の溶出溶媒はpH約5.5〜約6.8を有する水溶液であることを特徴とする方法。
- 請求項16、17、18、19又は20に記載の方法において、前記第1の溶出溶媒はpH約1.2を有する水性溶媒であり、前記第2の溶出溶媒はpH約6を有する水性緩衝液であることを特徴とする方法。
- 請求項12、13、14、15、16、17、18、19、20又は21に記載の方法において、前記パンクレリパーゼ組成物は合計で約750USPリパーゼ単位、約3,000USPリパーゼ単位、約4,200USPリパーゼ単位、約5,000USPリパーゼ単位、約6,000USPリパーゼ単位、約10,000USPリパーゼ単位、約10,500USPリパーゼ単位、約15,000USPリパーゼ単位、約16,800USPリパーゼ単位、約20,000USPリパーゼ単位、約21,000USPリパーゼ単位、約24,000USPリパーゼ単位、約25,000USPリパーゼ単位、もしくは約40,000USPリパーゼ単位またはこれらの倍数、あるいは約5,000PhEurリパーゼ単位、もしくは約10,000PhEurリパーゼ単位、もしくは約15,000PhEurリパーゼ単位もしくは約20,000PhEurリパーゼ単位もしくは約30,000PhEurリパーゼ単位、もしくは約40,000PhEurリパーゼ単位またはこれらの倍数を有することを特徴とする方法。
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MX351014B (es) | 2017-09-28 |
CO6890096A2 (es) | 2014-03-10 |
MX2014001492A (es) | 2015-01-12 |
ZA201401650B (en) | 2015-11-25 |
KR101953413B1 (ko) | 2019-02-28 |
RU2602183C2 (ru) | 2016-11-10 |
DK2741766T3 (en) | 2016-01-11 |
US9976171B2 (en) | 2018-05-22 |
IL230616A0 (en) | 2014-03-31 |
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CL2014000315A1 (es) | 2014-08-18 |
JP2014522991A (ja) | 2014-09-08 |
ES2734221T3 (es) | 2019-12-04 |
NZ620329A (en) | 2015-11-27 |
EP2987499B1 (en) | 2019-05-08 |
ES2558756T3 (es) | 2016-02-08 |
WO2013021359A1 (en) | 2013-02-14 |
RU2016119726A (ru) | 2018-11-02 |
IL230616B (en) | 2020-01-30 |
US20140295474A1 (en) | 2014-10-02 |
EP2987499A1 (en) | 2016-02-24 |
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AU2012293325B2 (en) | 2015-05-07 |
AU2015210474A1 (en) | 2015-09-03 |
BR112014002823A2 (pt) | 2017-03-01 |
HUE026560T2 (hu) | 2016-06-28 |
CA2843556A1 (en) | 2013-02-14 |
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