Indatuximab ravtansine (BT-062) is an antibody-drug conjugate (ADC) (Antibody-Drug Conjugates (ADCs)) based on a murine/human chimeric form of B-B4 (specific for CD138), linked to the maytansinoid agent DM4 by disulphide bonds. Indatuximab ravtansine shows anti-tumor activities[1].