Updated data from the first cohort of the Phase II EV-201 study of Seattle Genetics Inc./Astellas Pharma Inc.’s antibody-drug conjugate enfortumab vedotin continue to impress, with a confirmed 44% objective response rate and a median survival time of 11.7 months in a heavily pre-treated advanced urothelial cancer population.
Principal investigator Daniel Petrylak at Yale Cancer Center, who presented at the American Society of Clinical Oncology meeting in Chicago on 3 June, said enfortumab vedotin (EV) was the first novel product to show clinical activity in patients who have progressed after platinum chemotherapy and a PD-1/L1 inhibitor, the