JP6000329B2 - 1段階の工程によるマイタンシノイド−抗体複合体の調製 - Google Patents
1段階の工程によるマイタンシノイド−抗体複合体の調製 Download PDFInfo
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- JP6000329B2 JP6000329B2 JP2014502803A JP2014502803A JP6000329B2 JP 6000329 B2 JP6000329 B2 JP 6000329B2 JP 2014502803 A JP2014502803 A JP 2014502803A JP 2014502803 A JP2014502803 A JP 2014502803A JP 6000329 B2 JP6000329 B2 JP 6000329B2
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- 0 C[C@@](C(OC(CC(N(C)c1cc(CC(C)=CC=C[C@@](C(C2)(N3)O)OC)cc(OC)c1*)=O)C1(C)OC1C(C)C2OC3=O)=O)N(C)C(*)=O Chemical compound C[C@@](C(OC(CC(N(C)c1cc(CC(C)=CC=C[C@@](C(C2)(N3)O)OC)cc(OC)c1*)=O)C1(C)OC1C(C)C2OC3=O)=O)N(C)C(*)=O 0.000 description 2
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- A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
- A61K47/68—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
- A61K47/6835—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site
- A61K47/6851—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site the antibody targeting a determinant of a tumour cell
- A61K47/6867—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site the antibody targeting a determinant of a tumour cell the tumour determinant being from a cell of a blood cancer
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
- A61P35/02—Antineoplastic agents specific for leukemia
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- C07—ORGANIC CHEMISTRY
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- C07K1/00—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
- C07K1/107—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length by chemical modification of precursor peptides
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- C07K16/00—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies
- C07K16/18—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans
- C07K16/28—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
- C07K16/2896—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants against molecules with a "CD"-designation, not provided for elsewhere
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- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K16/00—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies
- C07K16/18—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans
- C07K16/32—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against translation products of oncogenes
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Description
本出願は、2011年3月29日に出願された米国特許仮出願第61/468,997号の利益を主張するものであり、上記出願は参照により本明細書に組み込まれるものとする。
(電子提出された物件の参照による援用)
以下:
9,233バイトのASCII(テキスト)ファイル1件(名称「710088SequenceListing.TXT」、2013年4月3日作成)、
と特定される、コンピューターで可読なヌクレオチド/アミノ酸の配列表が、本明細書中、参照によりその全体が援用される。
QVQLVQSGAEVVKPGASVKISCKASGYTFTGYFMNWVKQSPGQSLEWIGRIHPYDGDTFYNQKFQGKATLTVDKSSNTAHMELLSLTSEDFAVYYCTRYDGSRAMDYWGQGTTVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCDKTHTCPPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK(配列番号8)
を有する重鎖を含む。
QVQLVQSGAEVVKPGASVKISCKASGYTFTGYFMNWVKQSPGQSLEWIGRIHPYDGDTFYNQKFQGKATLTVDKSSNTAHMELLSLTSEDFAVYYCTRYDGSRAMDYWGQGTTVTVSS(配列番号9)
と少なくとも約90%、95%、99%または100%同一である重鎖可変ドメインと、
DIVLTQSPLSLAVSLGQPAIISCKASQSVSFAGTSLMHWYHQKPGQQPRLLIYRASNLEAGVPDRFSGSGSKTDFTLNISPVEAEDAATYYCQQSREYPYTFGGGTKLEIKR(配列番号10);または
DIVLTQSPLSLAVSLGQPAIISCKASQSVSFAGTSLMHWYHQKPGQQPRLLIYRASNLEAGVPDRFSGSGSKTDFTLTISPVEAEDAATYYCQQSREYPYTFGGGTKLEIKR(配列番号11)
と少なくとも約90%、95%、99%または100%同一である軽鎖可変ドメインとを含む、ヒト化抗体またはその抗原結合フラグメントである。
Y’は(CR7R8)l(CR9=CR10)p(C≡C)qAo(CR5R6)mDu(CR11=CR12)r(C≡C)sBt(CR3R4)nCR1R2SZを表し、式中、
R1およびR2は、それぞれ独立してCH3、C2H5、1〜10個の炭素原子を有する直鎖アルキルもしくはアルケニル、3〜10個の炭素原子を有する分岐もしくは環状のアルキルもしくはアルケニル、フェニル、置換フェニルまたは複素環芳香族またはヘテロシクロアルキルラジカルであり、R2はHであってもよく,
A、B、Dは、3〜10個の炭素原子を有するシクロアルキルもしくはシクロアルケニル、単純もしくは置換アリールまたは複素環芳香族またはヘテロシクロアルキルラジカルであり、
R3、R4、R5、R6、R7、R8、R9、R10、R11およびR12は、それぞれ独立してH、CH3、C2H5、1〜10個の炭素原子を有する直鎖アルキルもしくはアルケニル、3〜10個の炭素原子を有する分岐もしくは環状のアルキルもしくはアルケニル、フェニル、置換フェニルまたは複素環芳香族またはヘテロシクロアルキルラジカルであり、
l、m、n、o、p、q、r、sおよびtは、それぞれ独立してゼロまたは1〜5の整数であり、ただし、l、m、n、o、p、q、r、sおよびtのうちの少なくとも2つは同時にゼロになることがなく、
ZはH、SRまたはCORであり、式中、Rは1〜10個の炭素原子を有する直鎖アルキルもしくはアルケニル、3〜10個の炭素原子を有する分岐もしくは環状のアルキルもしくはアルケニルまたは単純もしくは置換アリールまたは複素環芳香族またはヘテロシクロアルキルラジカルである。
Yは(CR7R8)l(CR5R6)m(CR3R4)nCR1R2SZを表し、式中、
R1およびR2は、それぞれ独立してCH3、C2H5、1〜10個の炭素原子を有する直鎖アルキルもしくはアルケニル、3〜10個の炭素原子を有する分岐もしくは環状のアルキルもしくはアルケニル、フェニル、置換フェニルまたは複素環芳香族またはヘテロシクロアルキルラジカルであり、R2はHであってもよく、
R3、R4、R5、R6、R7およびR8は、それぞれ独立してH、CH3、C2H5、1〜10個の炭素原子を有する直鎖アルキルもしくはアルケニル、3〜10個の炭素原子を有する分岐もしくは環状のアルキルもしくはアルケニル、フェニル、置換フェニルまたは複素環芳香族またはヘテロシクロアルキルラジカルであり、
l、mおよびnは、それぞれ独立して1〜5の整数であり、さらにnはゼロであってもよく、
Zは、H、SRまたはCORであり、式中、Rは、1〜10個の炭素原子を有する直鎖もしくは分岐のアルキルもしくはアルケニル、3〜10個の炭素原子を有する環状アルキルもしくはアルケニルまたは単純もしくは置換アリールまたは複素環芳香族またはヘテロシクロアルキルラジカルであり、
Mayは、C−3、C−14ヒドロキシメチル、C−15ヒドロキシまたはC−20デスメチルに側鎖を有するマイタンシノイドを表す。
Yは(CR7R8)l(CR5R6)m(CR3R4)nCR1R2SZを表し、式中、
R1およびR2は、それぞれ独立してCH3、C2H5、1〜10個の炭素原子を有する直鎖アルキルもしくはアルケニル、3〜10個の炭素原子を有する分岐もしくは環状のアルキルもしくはアルケニル、フェニル、置換フェニルまたは複素環芳香族またはヘテロシクロアルキルラジカルであり、R2はHであってもよく、
R3、R4、R5、R6、R7およびR8は、それぞれ独立してH、CH3、C2H5、1〜10個の炭素原子を有する直鎖アルキルもしくはアルケニル、3〜10個の炭素原子を有する分岐もしくは環状のアルキルもしくはアルケニル、フェニル、置換フェニルまたは複素環芳香族またはヘテロシクロアルキルラジカルであり、
l、mおよびnは、それぞれ独立して1〜5の整数であり、さらにnはゼロであってもよく、
Zは、H、SRまたはCORであり、式中、Rは、1〜10個の炭素原子を有する直鎖アルキルもしくはアルケニル、3〜10個の炭素原子を有する分岐もしくは環状のアルキルもしくはアルケニルまたは単純もしくは置換アリールまたは複素環芳香族またはヘテロシクロアルキルラジカルである。
Y2は(CR7R8)l(CR5R6)m(CR3R4)nCR1R2SZ2を表し、式中、
R1およびR2は、それぞれ独立してCH3、C2H5、1〜10個の炭素原子を有する直鎖アルキルもしくはアルケニル、3〜10個の炭素原子を有する分岐もしくは環状のアルキルもしくはアルケニル、フェニル、置換フェニルまたは複素環芳香族またはヘテロシクロアルキルラジカルであり、R2はHであってもよく、
R3、R4、R5、R6、R7およびR8は、それぞれ独立してH、CH3、C2H5、1〜10個の炭素原子を有する直鎖環状アルキルもしくはアルケニル、3〜10個の炭素原子を有する分岐もしくは環状のアルキルもしくはアルケニル、フェニル、置換フェニルまたは複素環芳香族またはヘテロシクロアルキルラジカルであり、
l、mおよびnは、それぞれ独立して1〜5の整数であり、さらにnはゼロであってもよく、
Z2は、SRまたはCORであり、式中、Rは、1〜10個の炭素原子を有する直鎖アルキルもしくはアルケニル、3〜10個の炭素原子を有する分岐もしくは環状のアルキルもしくはアルケニル、または単純もしくは置換アリールまたは複素環芳香族またはヘテロシクロアルキルラジカルであり、
Mayは、マイタンシノイドの大環状構造である。
Y2’は(CR7R8)l(CR9=CR10)p(C≡C)qAo(CR5R6)mDu(CR11=CR12)r(C≡C)sBt(CR3R4)nCR1R2SZ2を表し、式中、
R1およびR2は、それぞれ独立してCH3、C2H5、1〜10個の炭素原子を有する直鎖分岐もしくはアルキルもしくはアルケニル、3〜10個の炭素原子を有する環状アルキルもしくはアルケニル、フェニル、置換フェニルまたは複素環芳香族またはヘテロシクロアルキルラジカルであり、さらにR2はHであってもよく、
A、BおよびDは、それぞれ独立して3〜10個の炭素原子を有するシクロアルキルもしくはシクロアルケニル、単純もしくは置換アリールまたは複素環芳香族またはヘテロシクロアルキルラジカルであり、
R3、R4、R5、R6、R7、R8、R9、R10、R11およびR12は、それぞれ独立してH、CH3、C2H5、1〜10個の炭素原子を有する直鎖アルキルもしくはアルケニル、3〜10個の炭素原子を有する分岐もしくは環状のアルキルもしくはアルケニル、フェニル、置換フェニルまたは複素環芳香族またはヘテロシクロアルキルラジカルであり、
l、m、n、o、p、q、r、sおよびtは、それぞれ独立してゼロまたは1〜5の整数であり、ただし、l、m、n、o、p、q、r、sおよびtのうちの少なくとも2つは同時にゼロになることがなく、
Z2は、SRまたは−CORであり、式中、Rは、1〜10個の炭素原子を有する直鎖アルキルもしくはアルケニル、3〜10個の炭素原子を有する分岐もしくは環状のアルキルもしくはアルケニルまたは単純もしくは置換アリールまたは複素環芳香族またはヘテロシクロアルキルラジカルである。
一般式(IX):
HOOC−Xl−Yn−Zm−COOH
(IX)
のα,ω−ジカルボン酸が挙げられ、上式中、Xは、2〜20個の炭素原子を有する直鎖または分岐のアルキル、アルケニルまたはアルキニル基であり、Yは、3〜10個の炭素原子を有するシクロアルキルまたはシクロアルケニル基であり、Zは、6〜10個の炭素原子を有する置換もしくは非置換芳香族基またはヘテロ原子がN、OもしくはSから選択される置換もしくは非置換複素環基であり、l、mおよびnは、それぞれ0または1であり、ただし、l、mおよびnは同時にすべてがゼロになることはない。
これまでに記載されている工程(例えば、米国特許第5,208,020号)および本出願の対象である1段階の工程を用いて、ヒト化CD37−3抗体をヘテロ二官能性架橋試薬SMCCおよびマイタンシノイドDM1と反応させた。
これまでに記載されている2つの工程および本出願の対象である改善された工程を用いて、ヒト化葉酸受容体抗体huMov19(米国特許出願公開第2012/0009181号を参照)をヘテロ二官能性架橋試薬スルホ−SPDBおよびマイタンシノイドDM4と反応させた。
この実施例は、本明細書に記載の1段階の工程を用いて、各種のリンカーおよびマイタンシノイド細胞毒性物質から出発して複合体を製造し得ることを示すものである。
Claims (30)
- 抗体−マイタンシノイド複合体を調製する工程であって、
(a)抗体をマイタンシノイドと接触させて、前記抗体と前記マイタンシノイドとを含む第一の混合物を形成し、次いで、前記第一の混合物をpHが4〜9の溶液中でリンカーを含む二官能性架橋試薬と接触させて、(i)前記抗体が前記リンカーを介して前記マイタンシノイドと化学的に結合している前記抗体−マイタンシノイド複合体と、(ii)遊離のマイタンシノイドと、(iii)反応副生成物とを含む第二の混合物を得る段階
を含む工程。 - (b)前記抗体−マイタンシノイド複合体を含む前記第二の混合物を精製して、精製された抗体−マイタンシノイド複合体を得る段階をさらに含む、請求項1に記載の工程。
- 前記第二の混合物をタンジェンシャルフローろ過、選択的沈殿、吸着ろ過、吸着クロマトグラフィー、非吸着クロマトグラフィーまたはその組合せに供することにより精製して、前記抗体−マイタンシノイド複合体を前記遊離のマイタンシノイドおよび前記反応副生成物から精製する、請求項2に記載の工程。
- 前記第二の混合物を非吸着クロマトグラフィーに供することにより精製する、請求項3に記載の工程。
- 前記第二の混合物をタンジェンシャルフローろ過に供することにより精製する、請求項3に記載の工程。
- 前記段階(a)の接触が、前記抗体を反応容器中に準備し、前記反応容器に前記マイタンシノイドを加えて、前記抗体と前記マイタンシノイドとを含む前記第一の混合物を形成し、次いで、前記二官能性架橋試薬を前記第一の混合物に加えることにより行われる、請求項1〜5のいずれか1項に記載の工程。
- 前記第二の混合物を段階(a)と段階(b)の間で保持して、不安定に結合したリンカーを前記抗体から解離させることをさらに含む、請求項2〜6のいずれか1項に記載の工程。
- 前記第二の混合物を2℃〜8℃の温度で20時間保持する、請求項7に記載の工程。
- 前記第二の混合物の反応を段階(a)と段階(b)の間で停止させて、任意の未反応のマイタンシノイドおよび/または未反応の二官能性架橋試薬の反応を停止させることをさらに含む、請求項2〜8のいずれか1項に記載の工程。
- 前記第二の混合物を前記遊離のマイタンシノイドと反応する反応停止試薬と接触させることにより、前記混合物の反応を停止させる、請求項9に記載の工程。
- 前記反応停止試薬が、4−マレイミド酪酸、3−マレイミドプロピオン酸、N−エチルマレイミド、ヨードアセトアミドおよびヨードアセトアミドプロピオン酸からなる群より選択される、請求項10に記載の工程。
- 前記段階(a)の接触が、pHが7〜9の溶液中で行われる、請求項1〜11のいずれか1項に記載の工程。
- 前記段階(a)の接触が16℃〜24℃の温度で行われる、請求項1〜12のいずれか1項に記載の工程。
- 前記段階(a)の接触が0℃〜15℃の温度で行われる、請求項1〜12のいずれか1項に記載の工程。
- 前記抗体がモノクローナル抗体である、請求項1〜14のいずれか1項に記載の工程。
- 前記抗体がヒト化モノクローナル抗体である、請求項15に記載の工程。
- 前記抗体が、huN901、huMy9−6、huB4、huC242、トラスツズマブ、ビバツズマブ、シブロツズマブ、CNTO95、huDS6、リツキシマブ、Her2に結合する抗体、上皮成長因子受容体(EGFR)に結合する抗体、CD27Lに結合する抗体、EGFRvIIIに結合する抗体、Criptoに結合する抗体、CD138に結合する抗体、EphA2に結合する抗体、インテグリン標的抗体、CD37に結合する抗体、葉酸に結合する抗体、Her3に結合する抗体およびインスリン様成長因子I受容体(IGFIR)に結合する抗体からなる群より選択される、請求項1〜14のいずれか1項に記載の工程。
- 前記抗体が、huCD37−3抗体である、請求項1〜14のいずれか1項に記載の工程。
- 前記抗体が、トラスツズマブである、請求項1〜14のいずれか1項に記載の工程。
- 前記マイタンシノイドがチオール基を含む、請求項1〜19のいずれか1項に記載の工程。
- 前記マイタンシノイドがN2’−デアセチル−N2’−(3−メルカプト−1−オキソプロピル)−マイタンシン(DM1)である、請求項20に記載の工程。
- 前記マイタンシノイドがN2’−デアセチル−N2’−(4−メチル−4−メルカプト−1−オキソペンチル)−マイタンシン(DM4)である、請求項20に記載の工程。
- 前記抗体が、ジスルフィド結合、酸に不安定な結合、光に不安定な結合、ペプチダーゼに不安定な結合、チオエーテル結合およびエステラーゼに不安定な結合からなる群より選択される化学結合を介して前記マイタンシノイドと化学的に結合している、請求項1〜22のいずれか1項に記載の工程。
- 前記二官能性架橋試薬が、N−スクシンイミジルエステル部分、N−スルホスクシンイミジルエステル部分、マレイミド系部分またはハロアセチル系部分を含む、請求項1〜23のいずれか1項に記載の工程。
- 前記二官能性架橋試薬が、N−スクシンイミジル−3−(2−ピリジルジチオ)プロピオナート(SPDP)、N−スクシンイミジル−4−(2−ピリジルジチオ)ペンタノアート(SPP)、N−スクシンイミジル−4−(2−ピリジルジチオ)ブタノアート(SPDB)、N−スクシンイミジル−4−(2−ピリジルジチオ)2−スルホブタノアート(スルホ−SPDB)、N−スクシンイミジル−4−(マレイミドメチル)シクロヘキサンカルボキシラート(SMCC)、PEG−mal、スルホ−MalおよびCX1−1からなる群より選択される、請求項24に記載の工程。
- 前記段階(a)の溶液がスクロースを含む、請求項1〜25のいずれか1項に記載の工程。
- 前記段階(a)の溶液が、クエン酸緩衝剤、酢酸緩衝剤、コハク酸緩衝剤およびリン酸緩衝剤からなる群より選択される緩衝剤を含む、請求項1〜26のいずれか1項に記載の工程。
- 前記段階(a)の溶液が、HEPPSO(N−(2−ヒドロキシエチル)ピペラジン−N’−(2−ヒドロキシプロパンスルホン酸))、POPSO(ピペラジン−1,4−ビス−(2−ヒドロキシ−プロパン−スルホン酸)無水物)、HEPES(4−(2−ヒドロキシエチル)ピペラジン−1−エタンスルホン酸)、HEPPS(EPPS)(4−(2−ヒドロキシエチル)ピペラジン−1−プロパンスルホン酸)、TES(N−[トリス(ヒドロキシメチル)メチル]−2−アミノエタンスルホン酸)およびその組合せからなる群より選択される緩衝剤を含む、請求項1〜26のいずれか1項に記載の工程。
- 前記マイタンシノイドが、DM1であり、前記二官能性架橋試薬が、SMCCであり、前記抗体が、huCD37−3抗体である、請求項1〜18、20、21および23〜28のいずれか1項に記載の工程。
- 前記マイタンシノイドが、DM1であり、前記二官能性架橋試薬が、SMCCであり、前記抗体が、トラスツズマブである、請求項1〜17、19〜21および23〜28のいずれか1項に記載の工程。
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11471536B2 (en) | 2005-08-24 | 2022-10-18 | Immunogen, Inc. | Process for preparing purified drug conjugates |
| US10815309B2 (en) | 2009-06-03 | 2020-10-27 | Immunogen, Inc. | Methods for preparing antibody-drug conjugates |
| JP2019056003A (ja) * | 2011-03-29 | 2019-04-11 | イムノゲン インコーポレーティッド | 1段階の工程によるマイタンシノイド−抗体複合体の調製 |
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