T-DXd yields superior outcomes over chemotherapy-based regimens in patients previously treated with T-DM1

Compared with capecitabine-based regimens, trastuzumab deruxtecan (T-DXd) led to higher response rates and longer survival in the third-line setting for patients with HER2-positive metastatic breast cancer previously treated with trastuzumab emtansine (T-DM1), according to results from the phase III DESTINY-Breast02 trial presented at the San Antonio Breast Cancer Symposium, held December 6-10, 2022.