MacroGenics` stock crashes after 5 deaths in ADC trial
NIJMEGEN, Netherlands, Sept. 19, 2021 /PRNewswire/ -- At a late-breaking oral presentation (LBA15) at the virtual 2021 ESMO Congress today, Byondis B.V., an independent, clinical stage biopharmaceutical company creating precision medicines, reported positive results from its pivotal Phase III TULIP® study. The multi-center, open-label, randomized clinical trial compared the efficacy and safety of the company's antibody-drug conjugate (ADC) [vic-]trastuzumab duocarmazine (SYD985) to physician's choice (PC) treatment in patients with pretreated HER2-positive unresectable locally advanced or metastatic breast cancer (MBC).