Einighausen

Researchers are evaluating whether sacituzumab tirumotecan alone or combined with pembrolizumab can treat people with triple-negative breast cancer TNBC that is locally recurrent, unresectable, or metastatic. The study aims to determine if these treatments help participants live longer overall or without their cancer growing or spreading compared to chemotherapy chosen by their physician. This is a phase 3, randomized, open-label trial focusing on patients whose tumors express PD-L1 at less than 10 combined positive score CPS. Participants are assigned to one of three groups. One group receives sacituzumab tirumotecan intravenously every two weeks until disease progression, toxicity, or stopping treatment. Another group gets the same sacituzumab tirumotecan schedule plus pembrolizumab intravenously every six weeks for up to about two years. The third group receives the physicians choice of chemotherapy, which may include paclitaxel, nab-paclitaxel, or gemcitabine plus carboplatin, given intravenously on various schedules until disease progression, toxicity, or discontinuation. Pre-medications are given before sacituzumab tirumotecan to help manage side effects. Participants will be monitored for how long they live without their cancer worsening and overall survival, with follow-up lasting up to around 61 months. Researchers will assess treatment response, quality of life using questionnaires, and physical and emotional functioning. Safety will be closely tracked by recording adverse events and treatment discontinuations. The total participation time depends on treatment duration and follow-up assessments.