NCT03975647 2025-12-10A Study of Tucatinib vs. Placebo in Combination With Ado-trastuzumab Emtansine (T-DM1) for Patients With Advanced or Metastatic HER2+ Breast CancerSeagen Inc.Phase 3 Active not recruiting466 enrolled 17 charts
NCT03529110 2025-10-21DS-8201a Versus T-DM1 for Human Epidermal Growth Factor Receptor 2 (HER2)-Positive, Unresectable and/or Metastatic Breast Cancer Previously Treated With Trastuzumab and Taxane [DESTINY-Breast03]Daiichi SankyoPhase 3 Active not recruiting524 enrolled 11 charts 1 FDA