Researchers want to know if sacituzumab tirumotecan given alone or with pembrolizumab can treat triple negative breast cancer (TNBC). The main goal of this study is to learn if people treated with sacituzumab tirumotecan alone or with pembrolizumab live longer overall or without the cancer growing or spreading compared to people treated with chemotherapy.
Has locally recurrent unresectable or metastatic TNBC that cannot be treated with curative intent
Has not received systemic treatment for locally recurrent unresectable or metastatic breast cancer
Participants previously treated for early-stage breast cancer must have completed all prior therapy for early-stage breast cancer with curative intent at least 6 months before the first disease recurrence
Is a candidate for treatment with pembrolizumab and one of the TPC options: paclitaxel or nab-paclitaxel or gemcitabine + carboplatin
Has breast cancer amenable to treatment with curative intent
Has TNBC with evaluable tumor programmed death ligand 1 (PD-L1) expression at combined positive score (CPS) ≥10
Has received prior systemic therapy for treatment of locally recurrent unresectable or metastatic breast cancer
Has Grade ≥2 peripheral neuropathy