This study tests whether adding the drug tucatinib to standard therapy (trastuzumab/pertuzumab or T-DM1) can prevent new or worsening brain metastases in people with advanced HER2+ breast cancer. About 48 participants who have stable disease elsewhere but a new brain tumor will r…
Phase: PHASE2 • Sponsor: Carey Anders, M.D. • Aim: Disease control
Last updated Jun 27, 2026 14:02 UTC