Tags: Drug.
Bivatuzumab (previously BIWA 4) is a humanized monoclonal antibody against CD44 v6.It is officially described as immunoglobulin G1 (human-mouse monoclonal BIWA4 γ1-chain anti-human antigen CD44v6) disulfide with human-mouse monoclonal BIWA4 κ-chain dimer. Prior to 2002 it was described as targeting CD44 v8.It has been chemically linked to various radioisotopes for use in radiotherapy for e.g.