Site-Specific Conjugation of the Indolinobenzodiazepine DGN549 to Antibodies Affords Antibody–Drug Conjugates with an Improved Therapeutic Index as Compared with Lysine Conjugation

Antibody–drug conjugates have elicited great interest recently as targeted chemotherapies for cancer. Recent preclinical and clinical data have continued to raise questions about optimizing the design of these complex therapeutics. Biochemical methods for site-specific antibody conjugation have been a design feature of recent clinical ADCs, and preclinical reports suggest that site-specifically conjugated ADCs generically offer improved...