JP2022535908A - 皮下投与に好適なFcRnインヒビターの医薬製剤 - Google Patents
皮下投与に好適なFcRnインヒビターの医薬製剤 Download PDFInfo
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Abstract
Description
免疫グロブリンガンマ(IgG)抗体は、自己免疫疾患、炎症性疾患、及び病態がIgG抗体の過剰発現を特徴とする障害(例えば、高ガンマグロブリン血症)などの、多くの障害の病理において重要な役割を果たす(例えば、Junghansの文献、Immunol Res. 16(1):29(1997)を参照)。
本明細書に開示されるのは、医薬組成物として有用な製剤を含むARGX-113の様々な製剤、その調製方法、様々な製剤を含む装置、及びこれらの使用である。ある実施態様において、製剤は、ヒト対象へのARGX-113の投与に好適かつ有用である。ある実施態様において、製剤は、ヒト対象へのARGX-113の皮下投与に好適かつ有用である。製剤は、FcRn媒介性抗体再利用の阻害から恩恵を受ける任意の疾病の治療において使用することができる。そのような疾病としては、例えば、限定されないが、重症筋無力症(MG)及び免疫血小板減少症(ITP)を含む、様々な抗体媒介性自己免疫疾患のうちのいずれか1つ又は複数を挙げることができる。
(ARGX-113)
ある実施態様において、単離されたFcRnアンタゴニストは、バリアントFc領域からなり、ここで、該バリアントFc領域は、ホモ二量体を形成する2つのFcドメインからなり、ここで、該Fcドメインの各々のアミノ酸配列は、配列番号1、配列番号2、又は配列番号3からなる。ARGX-113は、ヒトIgG1ののバリアントFc領域であり、ここで、該Fc領域は、それぞれ、EU位置252、254、256、433、434、及び436に、アミノ酸Y、T、E、K、F、及びYを含む。
本発明の製剤及び組成物は、抗体媒介性及び/又は抗体関連自己免疫疾患の治療における用途を見出すであろう。
本発明の製剤及び組成物は、対象におけるFc含有薬剤の血清レベル低下させることが望ましい任意の疾患又は疾病における用途を見出すであろう。Fc含有薬剤としては、限定するものではないが、自己抗体、治療用抗体、診断用抗体、及び免疫複合体が挙げられる。Fc含有薬剤のさらなる非限定的な例としては、イメージング剤(例えば、標識抗体)、抗体-薬物コンジュゲート(ADC)、Fc融合タンパク質(例えば、イムノアドヘシン)、及び免疫原(例えば、非ヒト抗体)が挙げられる。
本発明による製剤は、任意の好適な方法を用いて調製することができる。通常、ARGX-113は、Fcドメインをコードする発現ベクター又は核酸配列を含む真核細胞から調製される。例えば、真核細胞は、チャイニーズハムスター卵巣(CHO)細胞、DG44及びDUXB11(チャイニーズハムスター卵巣株、DHFRマイナス)、HELA(ヒト子宮頸癌)、CVI(サル腎臓株)、COS(SV40 T抗原を有するCVIの派生物)、R1610(チャイニーズハムスター線維芽細胞)、BALBC/3T3(マウス線維芽細胞)、HAK(ハムスター腎臓株)、SP2/0(マウス骨髄腫)、BFA-1c1BPT(ウシ内皮細胞)、RAJI(ヒトリンパ球)、293(ヒト腎臓)、又はNS0細胞であることができる。一実施態様において、ARGX-113を発現させるために使用される真核細胞は、CHO細胞である。例えば、その内容全体が引用により本明細書中に組み込まれる、WO 2015/100299号を参照されたい。ARGX-113は、典型的には、当技術分野で公知の技法を用いて細胞から単離することができる分泌タンパク質として発現される。通常、単離され、かつ濃縮されていないタンパク質産物は、その後、Tris/グリシン、pH 7.2又は20mM L-ヒスチジン/L-ヒスチジンHCl・H2O、pH 6.0などの滅菌水性溶液に入れられる。
本発明の水性製剤は、非経口投与に好適である。ある実施態様において、本発明の水性製剤は、皮下投与に好適である。ある実施態様において、本発明の水性製剤は、静脈内投与に好適である。ある実施態様において、本発明の水性製剤は、腹腔内投与に好適である。
製剤及び組成物は、通常、有効量で投与されることになっている。「有効量」は、所望の効果を達成するのに十分な量を指す。ある実施態様において、有効量は、治療有効量、すなわち、対象において所望の治療効果を達成するのに十分な量を指す。所望の治療効果の例としては、限定するものではないが、血清総IgGの減少、並びに重症筋無力症(MG)及び免疫血小板減少症(ITP)などの様々な抗体媒介性自己免疫疾患の治療が挙げられる。
本明細書で使用される場合、「対象」は、通常、哺乳動物を指す。ある実施態様において、対象は、ヒト又は非ヒト霊長類以外の哺乳動物である。ある実施態様において、対象は、ヒト又は非ヒト霊長類である。ある実施態様において、対象は、ヒトである。ある実施態様において、対象は、成人、すなわち、少なくとも18歳のヒトである。ある実施態様において、対象は、18歳未満のヒトである。
本発明の一態様は、本発明の水性製剤の治療有効量を含む滅菌容器を含む包装された医薬製品である。様々な実施態様において、包装された医薬製品は、単回使用バイアル、複数回使用バイアル、又は予充填シリンジとして提示することができる。
本発明の一態様は、本発明の水性製剤の治療有効量を含む装置である。
(実施例1.レオロジー的特徴解析)
本実施例は、ARGX-113の高濃度製剤を開発及び特徴解析するために行われた実験を記載している。特に、この一連の実験の目的は、濃度-粘度関係を確認することであった。試験は、5℃及び25℃という2つの温度で行った。最適剪断速度での5つの濃度のARGX-113をスクリーニングして、プラットフォームバッファー中のARGX-113のレオロジープロファイルを確認した。
表1.
SodPhos:リン酸ナトリウム
本実施例は、ARGX-113のさらなる高濃度製剤候補を開発及び特徴解析するために行われた実験を記載している。特に、この一連の実験の目的は、特定の特徴及び短期安定性試験に基づく前臨床毒性検査及び初期臨床試験のためのARGX-113の高濃度液体製剤候補を同定することであった。
本実施例は、ARGX-113のさらなる高濃度製剤候補を開発及び特徴解析するために行われた追加の実験を記載している。特に、この一連の実験の目的は、特定の特徴及び短期安定性試験に基づく前臨床毒性検査及び初期臨床試験のためのARGX-113の高濃度液体製剤候補を同定することであった。
本実施例は、ARGX-113のさらなる高濃度製剤候補を開発及び特徴解析するために行われたさらに追加の実験を記載している。特に、この一連の実験の目的は、特定の特徴及び短期安定性試験に基づく前臨床毒性検査及び初期臨床試験のためのARGX-113の高濃度液体製剤候補を同定することであった。
本実施例は、2つの調製方法の比較:方法1(パイロット)を方法2(GMP)と比較したものを記載している。方法2の結果、調製1と比較して、より正確なpHが得られた。
0.04%(w/v)ポリソルベート20を含む20mM L-ヒスチジン/L-ヒスチジン塩酸塩、100mM塩化ナトリウム、60mMスクロース、10mM L-メチオニン、pH 6.0中の165mg/mL ARGX-113。
本実施例では、追加の実験を行い、さらにより高い濃度、例えば、250~300mg/mLのARGX-113について、粘度低下製剤の可能性を評価した。このために、異なるpH値及びイオン強度の3つの製剤を調製した。3つの目標製剤は、表8に示されている。
表8.目標製剤
ARGX-113のストック溶液をバッファー交換に供し、その後、濃度上昇させ、タンパク質(ARGX-113)濃度を測定し、約250mg/mLに希釈し、賦形剤を添加した。得られた製剤の各々を5℃保存ロットと25℃保存ロットにさらに分類し、その後、粘度、オスモル濃度、外観検査、及び0.22μmフィルターを用いる濾過試験について、14日間にわたって、定期的に分析した。分析は、0日目(D0;調製日)、3日目(D3)、7日目(D7)、及び14日目(D14)目に行った。
・≧250mg/mLの濃度の3つのARGX-113の製剤を、200mMのアルギニンを用いて調製した。
・3つの製剤の粘度は、pH値に伴って減少した。F103製剤は、2週間にわたり、5及び25℃で、最も粘度の低い製剤であった(pH=6.5、24mPa・s、5℃で測定)。
・F101製剤は、ゲル粒子の形成のために、小規模で均一に調製することができなかった。
・F102製剤は、粘度の予想外のばらつきを示したが、これは、時間とともに減少するように思われた。
・F103製剤は、2週間以内は完全に再現性のある低い粘度を示した。
・保存製剤F102及びF103の外観は、保存が5℃であるか25℃であるかにかかわらず、2週間にわたって同じ状態であった。
・白っぽい高粘度の溶液が、7日後に、100mMアルギニンを含有するストック溶液で観察された(270~280mg/mLタンパク質)。14日後、固体ゲルが観察された(データは示さない)。
・濾過試験を行った: 5℃で濾過した後、F102及びF103の粘度は低いままであった(<26mPa・s)。
Claims (17)
- 約100~300mg/mLの単離された新生児Fc受容体(FcRn)アンタゴニストを、20~60mMヒスチジン/ヒスチジンHCl、0~70mMスクロース、0~150mM NaCl、0~250mMアルギニンHCl、0%~0.05%(w/v)ポリソルベート20又はポリソルベート80、0~15mM L-メチオニン、pH 6.0~6.5中に含む水性製剤であって、該単離されたFcRnアンタゴニストがバリアントFc領域からなり、ここで、該バリアントFc領域がホモ二量体を形成する2つのFcドメインからなり、ここで、該Fcドメインの各々のアミノ酸配列が、配列番号1、配列番号2、又は配列番号3からなる、前記水性製剤。
- 約100~200mg/mLの前記単離された新生児Fc受容体(FcRn)アンタゴニストを、20mMヒスチジン/ヒスチジンHCl、60mMスクロース、100mM NaCl、及び0.02%~0.04%(w/v)ポリソルベート20又はポリソルベート80、pH 6.0中に含み、ここで、前記Fcドメインの各々のアミノ酸配列が、配列番号1、配列番号2、又は配列番号3からなる、請求項1記載の水性製剤。
- 150mg/mLのARGX-113を、20mMヒスチジン/ヒスチジンHCl、60mMスクロース、100mM NaCl、及び0.04%(w/v)ポリソルベート20、pH 6.0中に含み、ここで、ARGX-113が前記単離されたFcRnアンタゴニストであり、ここで、前記Fcドメインの各々のアミノ酸配列が配列番号1からなる、請求項1記載の水性製剤。
- 175mg/mLのARGX-113を、20mMヒスチジン/ヒスチジンHCl、60mMスクロース、100mM NaCl、及び0.04%(w/v)ポリソルベート20、pH 6.0中に含み、ここで、ARGX-113が前記単離されたFcRnアンタゴニストであり、ここで、前記Fcドメインの各々のアミノ酸配列が配列番号1からなる、請求項1記載の水性製剤。
- 200mg/mLのARGX-113を、20mMヒスチジン/ヒスチジンHCl、60mMスクロース、100mM NaCl、及び0.04%(w/v)ポリソルベート20、pH 6.0中に含み、ここで、ARGX-113が前記単離されたFcRnアンタゴニストであり、ここで、前記Fcドメインの各々のアミノ酸配列が配列番号1からなる、請求項1記載の水性製剤。
- 約100~200mg/mLの前記単離された新生児Fc受容体(FcRn)アンタゴニストを、20mMヒスチジン/ヒスチジンHCl、60mMスクロース、100mM NaCl、10mM L-メチオニン、及び0.02%~0.04%(w/v)ポリソルベート20又はポリソルベート80、pH 6.0中に含み、ここで、前記Fcドメインの各々のアミノ酸配列が、配列番号1、配列番号2、又は配列番号3からなる、請求項1記載の水性製剤。
- 約165mg/mLの前記単離された新生児Fc受容体(FcRn)アンタゴニストを、20mMヒスチジン/ヒスチジンHCl、60mMスクロース、100mM NaCl、10mM L-メチオニン、及び0.04%(w/v)ポリソルベート20、pH 6.0中に含み、ここで、前記Fcドメインの各々のアミノ酸配列が、配列番号1、配列番号2、又は配列番号3からなる、請求項1記載の水性製剤。
- 175mg/mLのARGX-113を、20mMヒスチジン/ヒスチジンHCl、60mMスクロース、100mM NaCl、10mM L-メチオニン、及び0.03%(w/v)ポリソルベート20、pH 6.0中に含み、ここで、ARGX-113が前記単離されたFcRnアンタゴニストであり、ここで、前記Fcドメインの各々のアミノ酸配列が配列番号1からなる、請求項1記載の水性製剤。
- 200mg/mLのARGX-113を、20mMヒスチジン/ヒスチジンHCl、60mMスクロース、100mM NaCl、10mM L-メチオニン、及び0.03%(w/v)ポリソルベート20、pH 6.0中に含み、ここで、ARGX-113が前記単離されたFcRnアンタゴニストであり、ここで、前記Fcドメインの各々のアミノ酸配列が配列番号1からなる、請求項1記載の水性製剤。
- 約100~200mg/mLの前記単離された新生児Fc受容体(FcRn)アンタゴニストを、50mMヒスチジン/ヒスチジンHCl、60mMスクロース、150mMアルギニンHCl、及び0.02%~0.04%(w/v)ポリソルベート20又はポリソルベート80、pH 6.0中に含み、ここで、前記Fcドメインの各々のアミノ酸配列が、配列番号1、配列番号2、又は配列番号3からなる、請求項1記載の水性製剤。
- 約100~200mg/mLの前記単離された新生児Fc受容体(FcRn)アンタゴニストを、20mMヒスチジン/ヒスチジンHCl、60mMスクロース、100mMアルギニンHCl、10mM L-メチオニン、及び0.02%~0.04%(w/v)ポリソルベート20又はポリソルベート80、pH 6.0中に含み、ここで、前記Fcドメインの各々のアミノ酸配列が、配列番号1、配列番号2、又は配列番号3からなる、請求項1記載の水性製剤。
- 175mg/mLのARGX-113を、20mMヒスチジン/ヒスチジンHCl、60mMスクロース、100mMアルギニンHCl、10mM L-メチオニン、及び0.03%(w/v)ポリソルベート20、pH 6.0中に含み、ここで、ARGX-113が前記単離されたFcRnアンタゴニストであり、ここで、前記Fcドメインの各々のアミノ酸配列が配列番号1からなる、水性製剤。
- 200mg/mLのARGX-113を、20mMヒスチジン/ヒスチジンHCl、60mMスクロース、100mMアルギニンHCl、10mM L-メチオニン、及び0.03%(w/v)ポリソルベート20、pH 6.0中に含み、ここで、ARGX-113が前記単離されたFcRnアンタゴニストであり、ここで、前記Fcドメインの各々のアミノ酸配列が配列番号1からなる、請求項1記載の水性製剤。
- 約100~300mg/mLの前記単離された新生児Fc受容体(FcRn)アンタゴニストを、50mMヒスチジン/ヒスチジンHCl、200mMアルギニンHCl、pH 6.5中に含み、ここで、前記Fcドメインの各々のアミノ酸配列が、配列番号1、配列番号2、又は配列番号3からなる、請求項1記載の水性製剤。
- 請求項1~14のいずれか一項記載の水性製剤の治療有効量を含む滅菌容器を含む包装された医薬製品。
- 請求項1~14のいずれか一項記載の水性製剤の治療有効量を含む装置。
- 前記装置が前記水性製剤を含むシリンジを含む、請求項16記載の装置。
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- 2020-06-05 JP JP2021572507A patent/JP2022535908A/ja active Pending
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CN114126647A (zh) | 2022-03-01 |
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US20230357382A1 (en) | 2023-11-09 |
KR20220019018A (ko) | 2022-02-15 |
IL288550A (en) | 2022-02-01 |
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SG11202112010RA (en) | 2021-12-30 |
US20200399363A1 (en) | 2020-12-24 |
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MA56102A (fr) | 2022-04-13 |
US11591388B2 (en) | 2023-02-28 |
BR112021024632A2 (pt) | 2022-01-18 |
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AU2020286968A1 (en) | 2021-11-25 |
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