Enhertu significantly improved progression-free survival in DESTINY-Breast03 head-to-head trial vs. trastuzumab emtansine (T-DM1) in patients with HER2-positive metastatic breast cancer
IDMC recommended unblinding based on primary efficacy endpoint demonstrating superiority; results also indicate strong trend toward improved overall survival Plans for global regulatory submissions underwayPositive high-level results from the head-to-head DESTINY-Breast03 Phase III trial showed that Enhertu (trastuzumab deruxtecan), the AstraZeneca and Daiichi Sankyo Company, Limited (Daiichi Sankyo) HER2-directed antibody drug conjugate (ADC), demonstrated superiority over trastuzumab emtansine (T-DM1). At a planned interim analysis, the Independent Data Monitoring Committee (IDMC)