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BISPECIFIC T CELL ACTIVATING ANTIGEN BINDING MOLECULES

  • US 20170096495A1
  • Filed: 09/29/2016
  • Published: 04/06/2017
  • Est. Priority Date: 10/02/2015
  • Status: Abandoned Application
First Claim
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1. A T cell activating bispecific antigen binding molecule comprising:

  • (a) a first antigen binding moiety which specifically binds to a first antigen;

    (b) a second antigen binding moiety which specifically binds to a second antigen;

    wherein the first antigen is an activating T cell antigen and the second antigen is STEAP-1, or the first antigen is STEAP-1 and the second antigen is an activating T cell antigen; and

    wherein the antigen binding moiety which specifically binds to STEAP-1 comprises a heavy chain variable region, particularly a humanized heavy chain variable region, comprising the heavy chain complementarity determining region (HCDR) 1 of SEQ ID NO;

    14, the HCDR 2 of SEQ ID NO;

    15 and the HCDR 3 of SEQ ID NO;

    16, and a light chain variable region, particularly a humanized light chain variable region, comprising the light chain complementarity determining region (LCDR) 1 of SEQ ID NO;

    17, the LCDR 2 of SEQ ID NO;

    18 and the LCDR 3 of SEQ ID NO;

    19.

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