Phase II Single-Arm Study to Assess Trastuzumab and Vinorelbine in Advanced Breast Cancer Patients With HER2-Negative Tumors and HER2-Positive Circulating Tumor Cells

PURPOSEHuman epidermal growth factor receptor 2 (HER2)–directed treatments improve outcomes for patients with HER2-positive metastatic breast cancer (MBC). Current identification of patients with H...