JPWO2011090088A1 - 安定化抗体含有溶液製剤 - Google Patents
安定化抗体含有溶液製剤 Download PDFInfo
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- JPWO2011090088A1 JPWO2011090088A1 JP2011550936A JP2011550936A JPWO2011090088A1 JP WO2011090088 A1 JPWO2011090088 A1 JP WO2011090088A1 JP 2011550936 A JP2011550936 A JP 2011550936A JP 2011550936 A JP2011550936 A JP 2011550936A JP WO2011090088 A1 JPWO2011090088 A1 JP WO2011090088A1
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- Prior art keywords
- antibody
- preparation
- buffer
- histidine
- arginine
- Prior art date
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Abstract
Description
〔2〕 塩基性アミノ酸がヒスチジンである、ヒスチジン−アスパラギン酸塩緩衝液あるいはヒスチジン−グルタミン酸塩緩衝液を含有することを特徴とする、〔1〕に記載の製剤。
〔3〕 塩基性アミノ酸がアルギニンである、アルギニン−アスパラギン酸塩あるいはアルギニン−グルタミン酸塩を含有することを特徴とする、〔1〕に記載の製剤。
〔4〕 ヒスチジン−アスパラギン酸塩緩衝液あるいはヒスチジン−グルタミン酸塩緩衝液、および、アルギニン−アスパラギン酸塩あるいはアルギニン−グルタミン酸塩を含有することを特徴とする、安定な抗体含有製剤。
〔5〕 トリスヒドロキシメチルアミノメタン-アスパラギン酸塩緩衝液またはトリスヒドロキシメチルアミノメタン-グルタミン酸塩緩衝液を含有することを特徴とする、安定な抗体含有製剤。
〔6〕 トリスヒドロキシメチルアミノメタン−アスパラギン酸塩緩衝液およびトリスヒドロキシメチルアミノメタン−グルタミン酸塩緩衝液を含有することを特徴とする、安定な抗体含有製剤。
〔7〕 塩化物イオンおよび酢酸イオンを実質的に含まない、〔1〕〜〔6〕のいずれかに記載の製剤。
〔8〕 さらに糖類を含む、〔1〕〜〔7〕のいずれかに記載の製剤。
〔9〕 抗体がヒト化抗体またはヒト抗体である、〔1〕〜〔8〕のいずれかに記載の製剤。
〔10〕 抗体の等電点(pI)が、5〜8に改変された抗体である、〔1〕〜〔9〕のいずれかに記載の製剤。
〔11〕 抗体濃度が50 mg/mL以上である、〔1〕〜〔10〕のいずれかに記載の製剤。
〔12〕 抗体濃度が50 mg/mL〜250 mg/mLである、〔1〕〜〔10〕のいずれかに記載の製剤。
〔13〕 溶液製剤である、〔1〕〜〔12〕のいずれかに記載の製剤。
〔14〕 溶液製剤の粘度が、30 mPa・s以下である、〔13〕に記載の製剤。
〔15〕 溶液製剤が2〜8℃で少なくとも6ヶ月間安定である、〔13〕または〔14〕に記載の製剤。
〔16〕 溶液製剤の製造過程に凍結乾燥工程を含まないで製造される、〔13〕〜〔15〕のいずれかに記載の製剤。
〔17〕 −30℃〜−10℃で凍結保存される、〔13〕〜〔16〕のいずれかに記載の製剤。
〔18〕 凍結乾燥製剤である、〔1〕〜〔12〕のいずれかに記載の製剤。
〔19〕 緩衝液濃度が5 mM〜100 mMである、〔2〕、〔4〕、〔7〕〜〔18〕のいずれかに記載の製剤。
〔20〕 アルギニンの濃度が5 mM〜300 mMである、〔3〕、〔7〕〜〔19〕のいずれかに記載の製剤。
〔21〕 抗体が抗IL-6レセプター抗体である、〔1〕〜〔20〕のいずれかに記載の製剤。
〔22〕 緩衝液が実質的にアミノ酸のみからなる、〔2〕、〔4〕、〔7〕〜〔21〕のいずれかに記載の製剤。
〔23〕 皮下投与用である、〔1〕〜〔22〕のいずれかに記載の製剤。
〔24〕 高濃度抗体含有製剤中の緩衝剤の対イオン種としてアスパラギン酸あるいはグルタミン酸を用いることで、当該製剤の凍結状態における保存時の会合化を抑制する方法。
〔25〕 高濃度抗体含有製剤中の緩衝剤の対イオン種としてアスパラギン酸あるいはグルタミン酸を用いることで、当該製剤の溶液状態における保存時の会合化を抑制する方法。
〔26〕 高濃度抗体含有製剤中の安定化剤の対イオン種としてアスパラギン酸あるいはグルタミン酸を用いることで、当該製剤の凍結状態における保存時の会合化を抑制する方法。
〔27〕 高濃度抗体含有製剤中の安定化剤の対イオン種としてアスパラギン酸あるいはグルタミン酸を用いることで、当該製剤の溶液状態における保存時の会合化を抑制する方法。
さらに本発明は、塩基性アミノ酸−アスパラギン酸塩あるいは塩基性アミノ酸−グルタミン酸塩の安定な抗体含有製剤の製造における使用、および、高濃度抗体含有製剤の凍結状態または溶液状態における保存時の会合化を抑制する方法に使用するための、当該製剤中の緩衝剤もしくは安定化剤の対イオン種であるアスパラギン酸あるいはグルタミン酸、に関する。
即ち本発明は、塩基性アミノ酸がヒスチジンである、ヒスチジン−アスパラギン酸塩緩衝液あるいはヒスチジン−グルタミン酸塩緩衝液を含有することを特徴とする、安定な抗体含有製剤を提供する。さらに、本発明は、塩基性アミノ酸がアルギニンである、アルギニン−アスパラギン酸塩あるいはアルギニン−グルタミン酸塩を安定化剤として含有することを特徴とする、安定な抗体含有製剤を提供する。さらに本発明は、ヒスチジン−アスパラギン酸塩緩衝液あるいはヒスチジン−グルタミン酸塩緩衝液、および、アルギニン−アスパラギン酸塩あるいはアルギニン−グルタミン酸塩を含有することを特徴とする、安定な抗体含有製剤を提供する。さらに本発明は、トリスヒドロキシメチルアミノメタン-アスパラギン酸塩緩衝液またはトリスヒドロキシメチルアミノメタン-グルタミン酸塩緩衝液を含有することを特徴とする、安定な抗体含有製剤を提供する。さらに本発明は、トリスヒドロキシメチルアミノメタン−アスパラギン酸塩緩衝液およびトリスヒドロキシメチルアミノメタン−グルタミン酸塩緩衝液を含有することを特徴とする、安定な抗体含有製剤を提供する。本発明において、抗体含有製剤とは、活性成分として抗体を含み、ヒト等の動物に投与できるように調製された製剤を指す。
モノクローナル抗体を産生するハイブリドーマは、基本的には公知技術を使用し、以下のようにして作製できる。すなわち、所望の抗原や所望の抗原を発現する細胞を感作抗原として使用して、これを通常の免疫方法にしたがって免疫し、得られる免疫細胞を通常の細胞融合法によって公知の親細胞と融合させ、通常のスクリーニング法により、モノクローナルな抗体産生細胞(ハイブリドーマ)をスクリーニングすることによって作製できる。ハイブリドーマの作製は、たとえば、ミルステインらの方法(Kohler. G. and Milstein, C., Methods Enzymol. (1981) 73: 3-46 )等に準じて行うことができる。抗原の免疫原性が低い場合には、アルブミン等の免疫原性を有する巨大分子と結合させ、免疫を行えばよい。
A)抗IL-6レセプター抗体
B)ヒスチジン−アスパラギン酸塩緩衝液および/またはヒスチジン−グルタミン酸塩緩衝液
C)所望によりアルギニン(アルギニン−アスパラギン酸塩あるいはアルギニン−グルタミン酸塩を含む)、アルギニン以外のアミノ酸、および/または糖類、ならびに
D)界面活性剤
さらに本発明は、塩基性アミノ酸−アスパラギン酸塩あるいは塩基性アミノ酸−グルタミン酸塩の安定な抗体含有製剤の製造における使用、および、高濃度抗体含有製剤の凍結状態または溶液状態における保存時の会合化を抑制する方法に使用するための、当該製剤中の緩衝剤もしくは安定化剤の対イオン種であるアスパラギン酸あるいはグルタミン酸、に関する。
WO 2009/041621に記載された抗IL-6レセプター抗体であるMab1(H鎖/配列番号:1、L鎖/配列番号:2)とMab2(H鎖/配列番号:3、L鎖/配列番号:4;トシリツマブ)は、CHO細胞安定発現株を用いて当業者の公知の方法で発現し、protein Aを含む当業者公知の方法で高純度に精製し、下記の実施例の安定性試験に使用した。
サイズ排除クロマトグラフィー(SEC)は、各処方の会合体量および低分子分解物を分析するために実施した。各サンプルを下記移動相により約0.4-2.0 mg/mLとなるように希釈し、これらをG3000SWXLカラム(東ソー)により分析した。移動相には300 mM NaCl を含む50 mM リン衝液(pH7.0)を用い、流速0.5 mL/minにて分析した(検出波長:220 nm)。単量体よりも早く溶出したピークを会合体、単量体よりも溶出は遅いがbuffer由来のピークよりも早く溶出したピークを低分子分解物として解析し、それぞれの含量(%)を面積百分率法により算出した。
HistidineおよびArginineの対イオン種としては、hydrochloric acidが一般的である。これまでに、Histidineの対イオン種としてAcetic acid、Phosphoric acid、Sulfuric acidを用いた検討の結果、Histidineの対イオン種としてAcetic acidが安定性に優れているとの報告(PCT/US2005/037471)がある。しかし上記実施例1において、Mab1およびMab2に対しては、Histidineのアニオン性の対イオン種としてはAcetic acidよりもhydrochloric acidのほうがやや優れていることが示された。アニオン性の対イオン種としてはhydrochloric acidが一般的であるが、hydrochloric acidは保存容器によく使用されるステンレス鋼を腐食しやすいことが報告されている(Dent. Mater. 17:409-414 (2001)、J. pharm. Sci. 86:1250-1255 (1997))。またAcetic acidは揮発性を有するためpH変動がおこりやすいことが報告されている(Injectable Drug Development, Authors: Pramod K. Gupta (Editor), Gayle A. Brazeau, Gayle A)。
実施例1に示したとおり、Mab2はHistidine - Acetate バッファーよりもHistidine - Chlorideバッファーにおいて高い安定性を示すことが明らかとなった(Mab1と同様、図2)。また実施例2に示したとおり、HistidineおよびArginineの対イオン種をHydrochloric acidからAspartic acidまたはGlutamic acidとすることにより、溶液および凍結時のMab1の安定性が顕著に向上することが確認された。特に、Mab1において凍結時にHistidineおよびArginineの対イオン種をHydrochloric acidからGlutamic acidとすることにより、安定性が約3倍以上と大きく改善したことから、Mab2を用いてヒスチジンの対イオン種をGlutamic acidおよびHydrochloric acidとしたときの凍結融解における安定性を評価した。併せて安定化効果の高いArginineを含む処方も実施し、Histidineの対イオン種をGlutamic acidとしたときの安定化効果を観測する際の比較対照とした。
実施例2および3に示したとおり、HistidineおよびArginineの対イオン種をGlutamic acidとすることにより、特に凍結保存においてMab1の安定性が約2〜3倍と顕著に改善することが明らかとなった。そこでMab1の-20℃における保存安定性を追及するために、HistidineおよびArginineの対イオン種をGlutamic acidとし、さらに安定化剤として糖(Trehalose)を用いて-20℃における保存安定性試験を実施した。併せて溶液保存および凍結融解も実施した。
実施例1に示したとおり、Mab1と同様に、Mab2はHistidine - Acetate よりもHistidine - Chlorideにおいて高い安定性を示すことが明らかとなった(図2)。また実施例2に示したとおり、HistidineおよびArginineの対イオン種をHydrochloric acidからAspartic acidまたはGlutamic acidとすることにより、溶液および凍結時のMab1の安定性が顕著に向上することが確認された。そこで、Mab2を用いてHistidineの対イオン種をHydrochloric acidまたはGlutamic acidとしたときの溶液保存(25℃)における安定性を評価した。併せて安定化効果の高いArginineを含む処方も実施し、Histidineの対イオン種をGlutamic acidとしたときの安定化効果を観測する際の比較対照とした。
Mab3: ファクターIXとファクターXとのBi-specific抗体であり、IgG4由来の定常領域を有し、更にアミノ酸配列を改変してpI値を6.8に低下させた抗体
Mab4:抗NR10ヒト化抗体(WO2009/072604の実施例12に記載の方法で作製した、完全ヒト化NS22抗体)、抗体クラスはIgG2。アミノ酸配列を改変してpI値を5.6に低下させた抗体
Mab5:抗グリピカン3ヒト化抗体(WO2006/006693の実施例24に記載の方法でヒト化し、実施例25の方法でL鎖が改変された抗体)、抗体クラスはIgG1。
実施例2、3および6に示したとおり、Histidine処方において対イオン種をHydrochloric acidからAspartic acidまたはGlutamic acidとすることにより、溶液および凍結時の抗体の安定性が顕著に向上することが確認された。そこで、Mab1, Mab2, Mab3, Mab4およびMab5を用いて、トリスヒドロキシメチルアミノメタン(トリス)処方の対イオン種をHydrochloric acidまたはAspartic acidとしたときの溶液保存および凍結融解における安定性を評価した。
実施例7に示したとおり、トリス処方において対イオン種をHydrochloric acidからAspartic acidとすることにより、凍結時の抗体の安定性が顕著に向上することが確認された。そこで、Mab1, Mab2およびMab3を用いて、トリスの対イオン種をHydrochloric acidまたはAspartic acidとしたときの溶液保存および凍結融解における安定性を評価した。
Claims (27)
- 塩基性アミノ酸−アスパラギン酸塩あるいは塩基性アミノ酸−グルタミン酸塩を含有することを特徴とする、安定な抗体含有製剤。
- 塩基性アミノ酸がヒスチジンである、ヒスチジン−アスパラギン酸塩緩衝液あるいはヒスチジン−グルタミン酸塩緩衝液を含有することを特徴とする、請求項1に記載の製剤。
- 塩基性アミノ酸がアルギニンである、アルギニン−アスパラギン酸塩あるいはアルギニン−グルタミン酸塩を含有することを特徴とする、請求項1に記載の製剤。
- ヒスチジン−アスパラギン酸塩緩衝液あるいはヒスチジン−グルタミン酸塩緩衝液、および、アルギニン−アスパラギン酸塩あるいはアルギニン−グルタミン酸塩を含有することを特徴とする、安定な抗体含有製剤。
- トリスヒドロキシメチルアミノメタン-アスパラギン酸塩緩衝液またはトリスヒドロキシメチルアミノメタン-グルタミン酸塩緩衝液を含有することを特徴とする、安定な抗体含有製剤。
- トリスヒドロキシメチルアミノメタン−アスパラギン酸塩緩衝液およびトリスヒドロキシメチルアミノメタン−グルタミン酸塩緩衝液を含有することを特徴とする、安定な抗体含有製剤。
- 塩化物イオンおよび酢酸イオンを実質的に含まない、請求項1〜6のいずれかに記載の製剤。
- さらに糖類を含む、請求項1〜7のいずれかに記載の製剤。
- 抗体がヒト化抗体またはヒト抗体である、請求項1〜8のいずれかに記載の製剤。
- 抗体の等電点(pI)が、5〜8に改変された抗体である、請求項1〜9のいずれかに記載の製剤。
- 抗体濃度が50 mg/mL以上である、請求項1〜10のいずれかに記載の製剤。
- 抗体濃度が50 mg/mL〜250 mg/mLである、請求項1〜10のいずれかに記載の製剤。
- 溶液製剤である、請求項1〜12のいずれかに記載の製剤。
- 溶液製剤の粘度が、30 mPa・s以下である、請求項13に記載の製剤。
- 溶液製剤が2〜8℃で少なくとも6ヶ月間安定である、請求項13または14に記載の製剤。
- 溶液製剤の製造過程に凍結乾燥工程を含まないで製造される、請求項13〜15のいずれかに記載の製剤。
- −30℃〜−10℃で凍結保存される、請求項13〜16のいずれかに記載の製剤。
- 凍結乾燥製剤である、請求項1〜12のいずれかに記載の製剤。
- 緩衝液濃度が5 mM〜100 mMである、請求項2、4、7〜18のいずれかに記載の製剤。
- アルギニンの濃度が5 mM〜300 mMである、請求項3、7〜19のいずれかに記載の製剤。
- 抗体が抗IL-6レセプター抗体である、請求項1〜20のいずれかに記載の製剤。
- 緩衝液が実質的にアミノ酸のみからなる、請求項2、4、7〜21のいずれかに記載の製剤。
- 皮下投与用である、請求項1〜22のいずれかに記載の製剤。
- 高濃度抗体含有製剤中の緩衝剤の対イオン種としてアスパラギン酸あるいはグルタミン酸を用いることで、当該製剤の凍結状態における保存時の会合化を抑制する方法。
- 高濃度抗体含有製剤中の緩衝剤の対イオン種としてアスパラギン酸あるいはグルタミン酸を用いることで、当該製剤の溶液状態における保存時の会合化を抑制する方法。
- 高濃度抗体含有製剤中の安定化剤の対イオン種としてアスパラギン酸あるいはグルタミン酸を用いることで、当該製剤の凍結状態における保存時の会合化を抑制する方法。
- 高濃度抗体含有製剤中の安定化剤の対イオン種としてアスパラギン酸あるいはグルタミン酸を用いることで、当該製剤の溶液状態における保存時の会合化を抑制する方法。
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