FDA approves tucatinib with trastuzumab and pertuzumab for the maintenance treatment of HER2-positive breast cancer

https://www.fda.gov/drugs/resources-information-approved-drugs/fda-approves-tucatinib-trastuzumab-and-pertuzumab-maintenance-treatment-her2-positive-breast-cancer On October 7, 2026, the Food and Drug Administration approved tucatinib (Tukysa, Seagen Inc., a subsidiary of Pfizer) in combination with trastuzumab and pertuzumab for the maintenance treatment of adults with unresectable locally advanced or metastatic HER2-positive breast cancer following induction treatment.