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
NCT03734029 2025-10-06Trastuzumab Deruxtecan (DS-8201a) Versus Investigator's Choice for HER2-low Breast Cancer That Has Spread or Cannot be Surgically Removed [DESTINY-Breast04]Daiichi SankyoPhase 3 Active not recruiting557 enrolled 22 charts 1 FDA