Safety and Preliminary Effectiveness of BNT327, an Investigational Therapy for Breast Cancer, When Given in Combination With Chemotherapy

locally advanced breast cancer, triple negative breast cancer, metastatic triple negative breast cancers, programmed death-1, programmed death ligand-1, programmed death-1 monoclonal antibodies, anti vascular endothelial growth factor-a (anti-vegf-a), interventional, phase2