JP2015061844A - 抗ヒトpd−1抗体の癌に対する治療効果を最適化するための判定マーカーの使用 - Google Patents
抗ヒトpd−1抗体の癌に対する治療効果を最適化するための判定マーカーの使用 Download PDFInfo
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Abstract
【解決手段】 本発明は、抗ヒトPD−1抗体投与開始前と比べて投与開始後の、血液中の数種の判定マーカーの一定以上の変動を捉えることによって、将来的に抗ヒトPD−1抗体の治療効果が期待できる癌患者を選択することを可能とし、抗ヒトPD−1抗体の癌治療における新たな処方を提供する。
【選択図】 なし
Description
(1)癌患者への抗ヒトPD−1抗体投与開始前および投与開始後における同患者の上記一以上の判定マーカーの血中濃度を各々測定し、
(2)各々の判定マーカーの両濃度を比較し、さらに、
(3)測定された判定マーカーの一以上について、投与開始後の血中濃度が、投与開始前の血中濃度に比べ有意に変動していることを指標に、抗ヒトPD−1抗体が癌治療効果を奏することを予測する方法が挙げられる。
(1)癌患者への抗ヒトPD−1抗体投与開始前および投与開始後における同患者の上記一以上の判定マーカーの血中濃度を各々測定し、
(2)各々の判定マーカーの両濃度を比較し、さらに、
(3)抗ヒトPD−1抗体の投与開始後の一以上の判定マーカーの血中濃度が、投与開始前よりも優位に増加する癌患者に、その後、抗ヒトPD−1抗体を一回以上投与する方法が挙げられる。
(1)癌患者への抗ヒトPD−1抗体投与開始前および投与開始後における同患者の上記一以上の判定マーカーの血中濃度を各々測定し、
(2)各々の判定マーカーの両濃度を比較し、および
(3)抗ヒトPD−1抗体の投与開始後の一以上の判定マーカーの血中濃度が、投与開始前よりも優位に増加する癌患者に、その後、抗ヒトPD−1抗体を一回以上投与する方法からなる。
移植の前日に、5×106個/30mL/150mm培養ディッシュのMC38細胞(マウス大腸癌細胞(Cancer Res.(1975), 35(9), p.2434-9)を、10%ウシ胎児血清(FBS)、100U/mLペニシリンおよび100μg/mLストレプトマイシンを含むDMEM培地(以下、通常培地と略す。)に播種し、37℃、5%CO2/95%空気下で1日培養した。
麻酔下のマウス(7週齢、雌性C57BL/6NCrlCrljマウス(日本チャールスリバー株式会社);10例)の右側腹部に、2×105細胞/100μL/マウスのMC38細胞を皮下投与した。なお、抗マウスPD−1抗体4H2(以下、抗mPD−1抗体4H2あるいは4H2と略す。)およびマウスIgG(以下、mIgGと略す。)は、移植1時間前(0日目)ならびに移植後3、6および10日目に、それぞれ600μg/200μL/マウスで腹腔内に投与した。
図1に示すように、抗mPD−1抗体4H2は、腫瘍体積を有意に減少させる効果を示した。
血清中IgM濃度の測定は、ELISA Starter Accessory Package kit(フナコシ株式会社)およびmouse IgM ELISA Quantitation kit(フナコシ株式会社)にて、当該添付文書の操作手順に従って実施した。
図2および図3に示すように、抗mPD−1抗体4H2投与群では、腫瘍体積への効果が確認できない移植後8日目において、mIgG投与対照群に比べ血清中IgM濃度および血清中CD5L濃度の増加が顕著であった(P<0.05;スチューデントのt−検定)。また、図4に示すように、抗mPD−1抗体4H2投与群の血清中IgM濃度の増加は腫瘍体積と逆相関(相関係数:−0.58)していることが認められた。同様に、CD5Lについても逆相関の傾向を示した。
再発性または治療耐性固形癌(非小細胞癌、腎、大腸、メラノーマおよびホルモン耐性前立腺癌)を有する39名の患者に対して、0.3、1、3または10mg/kgのヒト型抗ヒトPD−1抗体を単回投与した。最初の投与の一日前、投与後29日、57日および85日後に、患者から血清を採取した。血清はバイオマーカー濃度測定まで凍結し、解凍後、免疫グロブリン(IgM、IgA、IgG1、IgG2、IgG3およびIgG4)を測定した。
RECIST基準に従い、病状を評価した。部分効奏が認められた大腸癌(3mg/kgヒト型抗ヒトPD−1抗体投与)および腎細胞癌(10mg/kgヒト型抗ヒトPD−1抗体投与)の二人の患者ならびに安定状態となった一人のメラノーマ患者(10mg/kgヒト型抗ヒトPD−1抗体投与)を含めて、抗癌活性が認められた。図5に示すように、抗ヒトPD−1抗体の投与開始後のIgG4濃度は投与開始前に比べ高かった。
Claims (29)
- 抗ヒトPD−1抗体の投与開始後に、免疫グロブリン、CD5Lおよびゲルソリンならびにそれら各々の断片からなる群から選択される一以上の判定マーカーの血中濃度が、投与開始前よりも優位に増加する癌患者に、その後、抗ヒトPD−1抗体を一回以上投与することを含む、抗ヒトPD−1抗体の癌治療効果を最適化するための方法。
- 抗ヒトPD−1抗体の投与開始後の判定マーカー血中濃度が、抗ヒトPD−1抗体の投与開始後12週目以前のいずれかの時期のものである請求項1記載の方法。
- 抗ヒトPD−1抗体の投与開始後の判定マーカー血中濃度が、抗ヒトPD−1抗体の投与開始後8週目以前のいずれかの時期のものである請求項1記載の方法。
- 免疫グロブリンが、IgM、IgGおよびIgAからなる群から選択される一以上のイソタイプである請求項1記載の方法。
- IgGがIgG4である請求項4記載の方法。
- 抗ヒトPD−1抗体が、ヒト型抗ヒトPD−1抗体である請求項1記載の方法。
- ヒト型抗ヒトPD−1抗体が、国際公開第06/121168号パンフレットに記載されている17D8、4H1、5C4、4A11、7D3、5F4または2D3で特定される抗体である請求項6記載の方法。
- 癌患者が、一種以上の固形癌を有する患者である請求項1記載の方法。
- 一種以上の固形癌が、悪性黒色腫、腎癌、前立腺癌、乳癌、肺癌、膵癌、大腸癌、肝細胞癌、胆道癌、胃癌、卵巣癌、食道癌および尿路上皮癌からなる群から選択される癌である請求項8記載の方法。
- 抗ヒトPD−1抗体の投与開始後に、免疫グロブリン、CD5Lおよびゲルソリンならびにそれら各々の断片からなる群から選択される一以上の判定マーカーの血中濃度が、投与開始前よりも優位に増加する癌患者に、その後、抗ヒトPD−1抗体を一回以上投与することを含む抗ヒトPD−1抗体の癌治療効果最適化のための一以上の判定マーカーの使用。
- 抗ヒトPD−1抗体の投与開始後の判定マーカー血中濃度が、抗ヒトPD−1抗体の投与開始後12週目以前のいずれかの時期のものである請求項10記載の使用。
- 抗ヒトPD−1抗体の投与開始後の判定マーカー血中濃度が、抗ヒトPD−1抗体の投与開始後8週目以前のいずれかの時期のものである請求項10記載の使用。
- 免疫グロブリンが、IgM、IgGおよびIgAからなる群から選択される一以上のイソタイプである請求項10記載の使用。
- IgGがIgG4である請求項13記載の使用。
- 抗ヒトPD−1抗体が、ヒト型抗ヒトPD−1抗体である請求項10記載の使用。
- ヒト型抗ヒトPD−1抗体が、国際公開第06/121168号パンフレットに記載されている17D8、4H1、5C4、4A11、7D3、5F4または2D3で特定される抗体である請求項15記載の使用。
- 癌患者が、一種以上の固形癌を有する患者である請求項10記載の使用。
- 一種以上の固形癌が、悪性黒色腫、腎癌、前立腺癌、乳癌、肺癌、膵癌、大腸癌、肝細胞癌、胆道癌、胃癌、卵巣癌、食道癌および尿路上皮癌からなる群から選択される癌である請求項17記載の使用。
- 抗ヒトPD−1抗体の投与開始後に、免疫グロブリン、CD5Lおよびゲルソリンならびにそれら各々の断片からなる群から選択される一以上の判定マーカーの血中濃度が、投与開始前よりも優位に増加する癌患者に、その後、抗ヒトPD−1抗体を一回以上投与することを含む癌治療方法。
- 抗ヒトPD−1抗体の投与開始後の判定マーカー血中濃度が、抗ヒトPD−1抗体の投与開始後12週目以前のいずれかの時期のものである請求項19記載の方法。
- 抗ヒトPD−1抗体の投与開始後の判定マーカー血中濃度が、抗ヒトPD−1抗体の投与開始後8週目以前のいずれかの時期のものである請求項19記載の方法。
- 免疫グロブリンが、IgM、IgGおよびIgAからなる群から選択される一以上のイソタイプである請求項19記載の方法。
- IgGがIgG4である請求項22記載の方法。
- 抗ヒトPD−1抗体が、ヒト型抗ヒトPD−1抗体である請求項19記載の方法。
- ヒト型抗ヒトPD−1抗体が、国際公開第06/121168号パンフレットに記載されている17D8、4H1、5C4、4A11、7D3、5F4または2D3で特定される抗体である請求項24記載の方法。
- 癌患者が、一種以上の固形癌を有する患者である請求項19記載の方法。
- 一種以上の固形癌が、悪性黒色腫、腎癌、前立腺癌、乳癌、肺癌、膵癌、大腸癌、肝細胞癌、胆道癌、胃癌、卵巣癌、食道癌および尿路上皮癌からなる群から選択される癌である請求項26記載の方法。
- 抗ヒトPD−1抗体の投与開始後に、免疫グロブリン、CD5Lおよびゲルソリンならびにそれら各々の断片からなる群から選択される一以上の判定マーカーの血中濃度が、投与開始前よりも優位に増加する癌患者を治療するための、抗ヒトPD−1抗体を含む癌治療剤。
- 抗ヒトPD−1抗体の投与開始後に、免疫グロブリン、CD5Lおよびゲルソリンならびにそれら各々の断片からなる群から選択される一以上の判定マーカーの血中濃度が、投与開始前よりも優位に増加する患者を選択することを含む、抗ヒトPD−1抗体によって癌を治療するのに適切な患者を選択する方法。
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JPH07291996A (ja) * | 1994-03-01 | 1995-11-07 | Yuu Honshiyo | ヒトにおけるプログラムされた細胞死に関連したポリペプチド、それをコードするdna、そのdnaからなるベクター、そのベクターで形質転換された宿主細胞、そのポリペプチドの抗体、およびそのポリペプチドまたはその抗体を含有する薬学的組成物 |
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JP5945096B2 (ja) | 2016-07-05 |
EP2307050A4 (en) | 2012-07-25 |
US20110123550A1 (en) | 2011-05-26 |
WO2010001617A1 (en) | 2010-01-07 |
US8460886B2 (en) | 2013-06-11 |
JP2011526674A (ja) | 2011-10-13 |
EP2307050A1 (en) | 2011-04-13 |
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