JP2019508448A - 移植片対宿主病予防の方法 - Google Patents
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Abstract
Description
本出願は2016年3月14日に出願された米国仮出願第62/307,896号、の利益を主張する。前記出願の全体を参照によって本明細書に援用する。
同種造血幹細胞移植(allo−HSCT)を受けているヒト患者に、ヒトα4β7インテグリンに対する結合特異性を有するヒト化抗体を投与するステップを含み、
上記ヒト化抗体は患者に下記の投与レジメン:
a.ヒト化抗体を75mg、300mg、450mgまたは600mgの初期投与量でallo−HSCTの前日に点滴静注、
b.続いてヒト化抗体の75mg、300mg、450mgまたは600mgの第2の投与を初期投与の約2週間後に点滴静注、
c.続いてヒト化抗体の75mg、300mg、450mgまたは600mgの第3投与を初期投与の約6週間後に点滴静注、
に従って投与され、任意選択で、本投与レジメンがグレードIIGvHD、グレードIGvHDまたはGvHDのない結果をもたらし、さらに、ヒト化抗体は、非ヒト由来の抗原結合領域及びヒト由来の抗体の少なくとも一部を含み、ヒト化抗体はα4β7複合体に対する結合特異性を有し、抗原結合領域が配列番号7(CDR1)、配列番号8(CDR2)、及び配列番号9(CDR3)の軽鎖CDRと配列番号4(CDR1)、配列番号5(CDR2)、及び配列番号6(CDR3)の重鎖CDRを含む、方法に関する。
同種造血幹細胞移植(allo−HSCT)を受けているヒト患者に、ヒトα4β7インテグリンに対する結合特異性を有するヒト化抗体を投与するステップを含み、
上記ヒト化抗体は患者に下記の投与レジメン:
a.ヒト化抗体を75mg、300mg、450mgまたは600mgの初期投与量でallo−HSCTの前日に点滴静注、
b.続いてヒト化抗体の300mgの第2の投与を初期投与の約2週間後に点滴静注、
c.続いてヒト化抗体の300mgの第3投与を初期投与の約6週間後に点滴静注、
に従って投与され、
ヒト化抗体は、非ヒト由来の抗原結合領域及びヒト由来の抗体の少なくとも一部を含み、ヒト化抗体はα4β7複合体に対する結合特異性を有し、抗原結合領域が配列番号7(CDR1)、配列番号8(CDR2)、及び配列番号9(CDR3)の軽鎖CDRと配列番号4(CDR1)、配列番号5(CDR2)、及び配列番号6(CDR3)の重鎖CDRを含む、方法に関する。いくつかの実施形態では、急性GvHDの発生の低減は、修正されたGlucksbergクライテリアによる、グレードIまたはグレードIIGvHD、または他のスコアリングシステムによる類似の重症度GvHDまたはGvHDのない状態をもたらす。他の実施形態では、急性GvHDの発生の低減は、メトトレキサート及びカルシニュリン阻害薬単独を用いた処置と比較した、100日目における急性GvHDの累積発現率及び急性GvHDの重症度グレードII−IVまたはグレードIII−IVの50%の低減である。他の実施形態では、急性移植片対宿主病(GvHD)の発生の低減は、メトトレキサート及びカルシニュリン阻害薬単独を用いた処置と比較した1年以内の死亡率の低減である。
a.造血幹細胞移植患者の免疫系の前処置、
b.ヒトα4β7インテグリンに対する結合特異性を有するヒト化抗体の投与、
c.少なくとも12時間の待機、
d.同種造血幹細胞の投与、
e.13日の待機後、ヒトα4β7インテグリンに対する結合特異性を有するヒト化抗体の第2の投与、及び
f.4週間の待機後、ヒトα4β7インテグリンに対する結合特異性を有するヒト化抗体の第3の投与、
のステップを含む方法。
別の態様において、本発明は、がん患者において免疫反応を抑制する方法であって、
同種造血幹細胞移植(allo−HSCT)を受けているヒト患者に、ヒトα4β7インテグリンに対する結合特異性を有するヒト化抗体を投与するステップを含み、
上記ヒト化抗体は患者に下記の投与レジメン:
a.ヒト化抗体を75mg、300mg、450mgまたは600mgの初期投与量でallo−HSCTの前日に点滴静注、
b.続いてヒト化抗体の300mgの第2の投与を初期投与の約2週間後に点滴静注、
c.続いてヒト化抗体の300mgの第3投与を初期投与の約6週間後に点滴静注、
に従って投与され、
さらにヒト化抗体は、非ヒト由来の抗原結合領域及びヒト由来の抗体の少なくとも一部を含み、ヒト化抗体はα4β7複合体に対する結合特異性を有し、抗原結合領域が配列番号7(CDR1)、配列番号8(CDR2)、及び配列番号9(CDR3)の軽鎖CDRと配列番号4(CDR1)、配列番号5(CDR2)、及び配列番号6(CDR3)の重鎖CDRを含む、方法に関する。
ヒト化抗体は、配列番号1のアミノ酸20〜140の重鎖可変領域配列を有し得る。
ヒト化抗体は、配列番号2のアミノ酸20〜131の軽鎖可変領域配列を有し得る。
ヒト化抗体は、配列番号1のアミノ酸20〜470を含む重鎖を有し、配列番号2のアミノ酸20〜238を含む軽鎖を有し得る。いくつかの実施形態では、ヒト化抗体はベドリズマブである。
用語「医薬製剤」は、抗α4β7抗体等のα4β7アンタゴニストを、抗体の生物活性が効果的となるような剤形で含み、その製剤が投与される患者に対して許容不可能な毒性である付加的な成分を含まない調製物を指す。
本発明は、GvHDまたは例えばallo−HSCTを受けている同種造血細胞移植患者(例えばヒト患者)のGvHD関連有害事象を予防することによって、患者における疾患を処置する方法に関する。ヒト患者は、成人(例えば18歳またはそれ以上)、若年成人、または小児であり得る。抗α4β7抗体を含む医薬組成物は、本明細書で記載されるように移植患者、がん患者、非悪性血液学的疾患患者を処置するためにまたはそれらに罹っている対象のGvHDを予防するために使用することができる。
第1b相非盲検用量設定試験が、同種造血幹細胞移植(allo−HSCT)を受けている成人患者における標準移植片対宿主病(GvHD)予防(タクロリムス+短期メトトレキサート)に対するベドリズマブ追加の安全性、忍容性、及び臨床活性を評価するためにデザインされた。ベドリズマブ用量設定は、コホートに基づき、また薬物動態(PK)ガイダンスによる規則に基づく用量設定試験デザインに従った。許容可能なPKを有する忍容用量が特定された後、その用量レベルのコホートは、ベドリズマブの忍容性及び有効性をさらに評価するため拡大され得る。
モンテカルロ・シミュレーションが臨床試験におけるベドリズマブ血清濃度の集団薬物動態モデルに行われた。シミュレーションは、体重及びアルブミンの作用に加えて個体間の変動及び残差変動を含んでいた。他の全ての共変数はそれらの標準値に設定された。1000名の成人患者がこの試験でシミュレートされた。アルブミン及び体重は正規分布から無作為にサンプルされた。シミュレートされた投与レジメンは、30分のIV輸注経由で−1日目、+13日目、+42日目(すなわち、最初の投与に対して0日目、14日目及び43日目)にベドリズマブ75mgであった。
Claims (61)
-
移植片対宿主病(GvHD)を予防する方法であって、
同種造血幹細胞移植(allo−HSCT)を受けているヒト患者に、ヒトα4β7インテグリンに対する結合特異性を有するヒト化抗体を投与するステップを含み、
前記ヒト化抗体は前記患者に下記の投与レジメン:
a.前記ヒト化抗体を75mg、300mg、450mgまたは600mgの初期投与量でallo−HSCTの前日に点滴静注;
b.続いて前記ヒト化抗体の75mg、300mg、450mgまたは600mgの第2の投与を前記初期投与の約2週間後に点滴静注;
c.続いて前記ヒト化抗体の75mg、300mg、450mgまたは600mgの第3の投与を前記初期投与の約6週間後に点滴静注;
に従って投与され、
さらに、前記ヒト化抗体は、非ヒト由来の抗原結合領域及びヒト由来の抗体の少なくとも一部を含み、前記ヒト化抗体はα4β7複合体に対する結合特異性を有し、前記抗原結合領域は下記のCDR:
軽鎖: CDR1 配列番号7
CDR2 配列番号8及び
CDR3 配列番号9ならびに
重鎖: CDR1 配列番号4
CDR2 配列番号5及び
CDR3 配列番号6
を含む、前記方法。 - 前記投与計画がグレードII GvHD、グレードI GvHDまたはGvHDのない結果をもたらす、請求項1に記載の方法。
- 前記予防が造血幹細胞輸注時に持続したα4β7遮断をもたらす、請求項1または2に記載の方法。
- タクロリムスが前記ヒト患者に共投与される、請求項1、2、または3に記
載の方法。
- メトトレキサートが前記ヒト患者に共投与される、請求項1〜4のいずれか
一項に記載の方法。
- 前記ヒト化抗体が前記患者に約30分にわたって投与される、請求項1〜5
のいずれか一項に記載の方法。
- 前記ヒト化抗体が凍結乾燥製剤から再構成される、請求項1〜6のいずれか
一項に記載の方法。
- さらに前記ヒト化抗体が安定した液体製剤を含むように再構成される、請求
項7に記載の方法。
- 前記ヒト化抗体が配列番号1のアミノ酸20〜140の重鎖可変領域配列を
有する、請求項1〜8のいずれか一項に記載の方法。
- 前記ヒト化抗体が配列番号2のアミノ酸20〜131の軽鎖可変領域配列を
有する、請求項1〜9のいずれか一項に記載の方法。
- 前記ヒト化抗体が配列番号1のアミノ酸20〜470を含む重鎖及び配列番
号2のアミノ酸20〜238を含む軽鎖を有する、請求項9または10に記載
の方法。
- 前記ヒト化抗体がベドリズマブである、請求項1〜11のいずれか一項に記
載の方法。
- がんまたは非悪性血液疾患、免疫疾患あるいは自己免疫疾患を患っている患
者を処置するための方法であって、 a.造血幹細胞移植患者の免疫系の前
処置のステップと、
b.ヒトα4β7インテグリンに対する結合特異性を有するヒト化抗体の
投与のステップと、
c.少なくとも12時間の待機のステップと、
d.同種造血幹細胞の投与のステップと、
e.13日の待機後、ヒトα4β7インテグリンに対する結合特異性を有
するヒト化抗体の第2の投与のステップと、
f.4週間の待機後、ヒトα4β7インテグリンに対する結合特異性を有するヒト化抗体の第3の投与のステップと、
を含む、前記方法。 - さらに、タクロリムスを前記患者へ投与することを含む、請求項13に記載
の方法。
- さらに、メトトレキサートを前記患者へ投与することを含む、請求項13ま
たは14に記載の方法。
- 前記免疫系の前記前処置が骨髄破壊的前処置または用量減量前処置である、
請求項13〜15のいずれか一項に記載の方法。
- 前記患者がステージ3、またはステージ4の腸管GvHDを含まない有害事
象を有する、請求項13〜16のいずれか一項に記載の方法。
- 前記患者がグレード IIIまたはグレード IVのGvHDを含まない有
害事象を有する、請求項13〜16のいずれか一項に記載の方法。
- 前記患者が白血病またはリンパ腫を有する、請求項13〜16のいずれか一
項に記載の方法。
- 前記同種造血幹細胞が末梢血液からのものである、請求項13〜16のいず
れか一項に記載の方法。
- 前記同種造血幹細胞がさらなる免疫抑制治療なしに生着する、請求項13〜
16のいずれか一項に記載の方法。
- 前記ヒト化抗体が、非ヒト由来の抗原結合領域及びヒト由来の抗体の少なくとも一部を含み、前記ヒト化抗体はα4β7複合体に対する結合特異性を有し、前記抗原結合領域は下記のCDR:
軽鎖: CDR1 配列番号7
CDR2 配列番号8及び
CDR3 配列番号9ならびに
重鎖: CDR1 配列番号4
CDR2 配列番号5及び
CDR3 配列番号6
を含む、請求項13〜16いずれか一項に記載の方法。 - 前記ヒト化抗体が凍結乾燥製剤から再構成される、請求項22に記載の方法
。
- 前記ヒト化抗体が配列番号1のアミノ酸20〜140の重鎖可変領域配列を
有する、請求項22に記載の方法。
- 前記ヒト化抗体が配列番号2のアミノ酸20〜131の軽鎖可変領域配列を
有する、請求項22に記載の方法。
- 前記ヒト化抗体が配列番号1のアミノ酸20〜470を含む重鎖及び配列番
号2のアミノ酸20〜238を含む軽鎖を有する、請求項22〜25のいずれ
か一項に記載の方法。
- 前記ヒト化抗体がベドリズマブである、請求項22〜26のいずれか一項に
記載の方法。
- 急性移植片対宿主病(GvHD)の発生を低減する方法であって、
同種造血幹細胞移植(allo−HSCT)を受けているヒト患者に、ヒトα4β7インテグリンに対する結合特異性を有するヒト化抗体を投与するステップを含み、
前記ヒト化抗体は前記患者に下記の投与レジメン:
a.前記ヒト化抗体を75mg、300mg、450mgまたは600mgの初期投与量でallo−HSCTの前日に点滴静注;
b.続いて前記ヒト化抗体の300mgの第2の投与を前記初期投与の約2週間後に点滴静注;
c.続いて前記ヒト化抗体の300mgの第3投与を前記初期投与の約6週間後に点滴静注;
に従って投与され、
前記ヒト化抗体は、非ヒト由来の抗原結合領域及びヒト由来の抗体の少なくとも一部を含み、前記ヒト化抗体は前記α4β7複合体に対する結合特異性を有し、前記抗原結合領域は下記のCDR:
軽鎖: CDR1 配列番号7
CDR2 配列番号8及び
CDR3 配列番号9ならびに
重鎖: CDR1 配列番号4
CDR2 配列番号5及び
CDR3 配列番号6
を含み、
それによってGvHDの発生を低減する、前記方法。 - 前記急性移植片対宿主病(GvHD)の発生の低減が、改変Glucksbergクライテリアによる、グレードIまたはグレードIIのGvHD、または他のスコアリングシステムによる類似の重症度GvHDまたはGvHDのない状態をもたらす、請求項28に記載の方法。
- 前記急性GvHDの発生の低減が、メトトレキサート及びカルシニュリン阻害薬単独を用いた処置と比較して、100日目におけるグレードII−IVまたはグレードIII−IVの急性GVHDの累積罹患率及び重症度の50%の低減である、請求項28に記載の方法。
- 前記急性急性移植片対宿主病(GvHD)の発生の低減が、メトトレキサート及びカルシニュリン阻害薬単独を用いた処置と比較した1年以内の死亡率の低減である、請求項28に記載の方法。
- がん患者における免疫反応を抑制する方法であって、
同種造血幹細胞移植(allo−HSCT)を受けているヒト患者に、ヒトα4β7インテグリンに対する結合特異性を有するヒト化抗体を投与するステップを含み、
前記ヒト化抗体は前記患者に下記の投与レジメン:
a.前記ヒト化抗体を75mg、300mg、450mgまたは600mgの初期投与量でallo−HSCTの前日に点滴静注;
b.続いて前記ヒト化抗体の300mgの第2の投与を前記初期投与の約2週間後に点滴静注;
c.続いて前記ヒト化抗体の300mgの第3の投与を前記初期投与の約6週間後に点滴静注;
に従って投与され、
さらに、前記ヒト化抗体は、非ヒト由来の抗原結合領域及びヒト由来の抗体の少なくとも一部を含み、前記ヒト化抗体は前記α4β7複合体に対する結合特異性を有し、前記抗原結合領域は下記のCDR:
軽鎖: CDR1 配列番号7
CDR2 配列番号8及び
CDR3 配列番号9ならびに
重鎖: CDR1 配列番号4
CDR2 配列番号5及び
CDR3 配列番号6
を含む、前記方法。 - 移植患者を処置する方法であって、前記移植患者が同種造血細胞の輸注のレシピエントであり、抗α4β7アンタゴニストを投与することを含む、前記方法。
- 前記移植患者が骨髄破壊的前処置または用量減量前処置から選択される前処置治療の前記レシピエントである、請求項33に記載の方法。
- 前記抗α4β7アンタゴニストが前記輸注の前に投与される、請求項33または34に記載の方法。
- 前記抗α4β7アンタゴニストが前記輸注の前に反復投与で少なくとも一用量投与される、請求項33または34に記載の方法。
- 前記抗α4β7アンタゴニストが前記輸注同日に反復投与で前記第1の用量で投与される、請求項33または34に記載の方法。
- 前記抗α4β7アンタゴニストが前記輸注後の次の日に反復投与で前記第1の用量で投与される、請求項33または34に記載の方法。
- 前記抗α4β7アンタゴニストが前記輸注の前日、当日、または次の日に単回用量で投与される、請求項33または34に記載の方法。
- 抗α4β7アンタゴニストの用量が前処置と前記輸注の間で投与される、請求項35または36に記載の方法。
- 前記移植患者ががんを患っている、請求項33〜40のいずれか一項に記載の方法。
- 前記がんが血液のがんである、請求項41に記載の方法。
- 前記血液のがんが白血病、リンパ腫、骨髄腫または骨髄増殖性の腫瘍である、請求項42に記載の方法。
- 前記白血病が急性リンパ芽球性白血病(ALL)または急性骨髄性白血病(AML)である、請求項43に記載の方法。
- 前記移植患者が非悪性血液疾患または免疫疾患を患っている、請求項33〜40のいずれか一項に記載の方法。
- 前記非悪性血液疾患または免疫疾患が異常ヘモグロビン症、骨髄不全症候群、及び免疫疾患からなる群から選択される、請求項45に記載の方法。
- 前記抗α4β7アンタゴニストが前記α4β7インテグリン複合体に対する結合特異性を有する抗α4β7抗体である、請求項33〜46のいずれか一項に記載の方法。
- 前記抗α4β7抗体がヒト化抗体であって、前記ヒト化抗体の前記抗原結合領域が下記のCDR:
軽鎖: CDR1 配列番号7
CDR2 配列番号8及び
CDR3 配列番号9ならびに
重鎖: CDR1 配列番号4
CDR2 配列番号5及び
CDR3 配列番号6
を含む、請求項46に記載の方法。 - 前記ヒト化抗体が凍結乾燥製剤から再構成される、請求項48に記載の前記
方法。
- 前記ヒト化抗体が静脈内に投与される、請求項47または48に記載の方法
。
- 前記ヒト化抗体が配列番号1のアミノ酸20〜140の重鎖可変領域配列を
有する、請求項48〜50のいずれか一項に記載の方法。
- 前記ヒト化抗体が配列番号2のアミノ酸20〜131の軽鎖可変領域配列を
有する、請求項48〜51のいずれか一項に記載の方法。
- 前記ヒト化抗体が配列番号1のアミノ酸20〜470を含む重鎖及び配列番
号2のアミノ酸20〜238を含む軽鎖を有する、請求項51または52に記
載の方法。
- 前記ヒト化抗体がベドリズマブである、請求項48〜53のいずれか一項に
記載の方法。
- さらに、タクロリムス、タクロリムス及びメトトレキサートまたはメトトレ
キサートを使用して前記移植患者を処置することを含む、請求項33〜54の
いずれか一項に記載の方法。
- さらに、好中球数を測定することによって前記allo−HSCの生着を検出することを含む、請求項33〜55のいずれか一項に記載の方法。
- さらに、インターロイキン6(IL−6)、インターロイキン17(IL−17)、腫瘍形成抑制因子2(ST2)、CD8+細胞、CD38+細胞、CD8+brightエフェクターメモリーT細胞、及びCD4+メモリーT細胞からなる群から選択されるバイオマーカーを測定することを含み、前記バイオマーカー量は前記輸注後の前または1週間以内に測定され、また前記輸注後20〜100日の時点で測定された前記バイオマーカーが変化しない、請求項56に記載の方法。
- 前記患者がステージ3またはステージ4の腸管GvHDを含まない有害事象を有する、請求項33〜57のいずれか一項に記載の方法。
- 前記同種造血細胞が同種造血幹細胞である、請求項33〜58のいずれか一項に記載の方法。
- 前記同種造血細胞が同種白血球細胞である、請求項33〜58のいずれか一項に記載の方法。
- 前記同種白血球細胞がTリンパ球である、請求項60に記載の方法。
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MA44408A (fr) | 2019-01-23 |
IL261750A (en) | 2018-10-31 |
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MX2018011169A (es) | 2018-12-06 |
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CA3017743A1 (en) | 2017-09-21 |
WO2017160699A3 (en) | 2017-11-23 |
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BR112018068628A2 (pt) | 2019-07-30 |
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