PHESGO Maintenance After T-DXd Short Induction for HER2+ Unresectable Locally Recurrent or Metastatic Breast Cancer
DEMETHER is a phase II trial exploring the maintenance of trastuzumab and pertuzumab fixed dose combination (FDC) for subcutaneous administration (SC, PHESGO) following trastuzumab deruxtecan (T-DXd) as induction treatment for HER2-positive unresectable locally recurrent or metastatic breast cancer (MBC) patients.