The ongoing clinical trial (NCT04727151) is evaluating the safety and preliminary anti-tumor activity of TAC01-HER2 treatment of HER2+ solid tumors....A 67% disease control rate (DCR) was observed in Cohorts 2-4 at 4 weeks restaging after TAC01-HER2 infusion….Treatment with TAC01-HER2 showed manageable safety and promising clinical activity in a heavily pre-treated cancer population.