Tucatinib, trastuzumab, and capecitabine as second- or third-line therapy after trastuzumab deruxtecan in HER2-positive metastatic breast cancer: A multicenter retrospective study in France.
Trastuzumab deruxtecan (T-DXd) is the current standard second-line therapy for human epidermal growth factor receptor 2 (HER2)-positive metastatic breast cancer (MBC), and it has been recently approved by FDA as first line therapy in combination with pertuzumab, following the results of the DESTINY-Breast09 trial. Howe...