公开(公告)号：US10906991B2

公开(公告)日：2021-02-02

申请号：US14934956

申请日：2015-11-06

Applicant: GENMAB A/S

Inventor： Janine Schuurman ,  Tom Vink ,  Jan Van De Winkel ,  Aran Frank Labrijn ,  Rob Aalberse ,  Marijn Van Der Neut Kolfschote ,  Paul Parren

IPC: C07K16/46 ,  C07K16/00 ,  C07K16/28

Abstract: The invention relates to an ex vivo method for the generation of a bispecific antibody, comprising the steps of: a) providing a first antibody having a first binding specificity, wherein said first antibody comprises an IgG4-like CH3 region, b) providing a second antibody having a second binding specificity which differs from said first binding specificity, wherein said second antibody comprises an IgG4-like CH3 region, c) incubating said first and second antibodies together under reducing conditions which allow the cysteines in the core hinge region to undergo disulfide-bond isomerization, and d) obtaining a bispecific antibody. The invention furthermore relates to bispecific antibodies obtainable by the method of the invention.