At the ongoing AACR meeting, Amgen Inc. provided details on the discovery and preclinical characterization of AMG-305, a novel dual-targeting bispecific T-cell engager (BiTE) molecule, being developed as a potential new anticancer agent. While BiTE molecules offer a targeted immune therapy approach to treat cancer, on-target toxicity from normal tissue target expression has been a key issue in the development of T-cell engager molecules in solid tumors.