- 专利标题: Purification of antibody drug conjugates using a sodium phosphate gradient
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申请号: US15778290申请日: 2016-12-07
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公开(公告)号: US11661438B2公开(公告)日: 2023-05-30
- 发明人: Durgesh V. Nadkarni , Jeffry R. Borgmeyer , He Meng , Qingping Jiang
- 申请人: PFIZER INC.
- 申请人地址: US NY New York
- 专利权人: Pfizer, Inc.
- 当前专利权人: Pfizer, Inc.
- 当前专利权人地址: US NY New York
- 代理机构: Saul Ewing LLP
- 国际申请: PCT/IB2016/057417 2016.12.07
- 国际公布: WO2017/109619A 2017.06.29
- 进入国家日期: 2018-05-23
- 主分类号: C07K1/18
- IPC分类号: C07K1/18 ; C07K1/22 ; A61K47/68
摘要:
Methods of removing high molecular weight species, in particular aggregates, from antibody drug conjugate preparations, by contacting preparations of the antibody drug conjugate reaction mixture with a hydroxyapatite resin and selectively eluting the ADC from the resin using a gradient comprising sodium phosphate.
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