Tucatinib Impresses in Breast Cancer.

Recent results suggest that tucatinib, when combined with trastuzumab and capecitabine, is effective in patients with locally advanced inoperable or metastatic HER2-positive breast cancer who have received prior therapies: In a phase II trial, the drug extended overall survival and progression-free survival compared with trastuzumab and capecitabine alone, and improved progression-free survival in patients with brain metastases. ©2020 American Association for Cancer Research.