Gilead: Phase 3 TROPiCS-02 Study Met Primary Endpoint in Metastatic Breast Cancer

 Gilead Sciences, Inc. (Nasdaq: GILD) today announced results from the Phase 3 TROPiCS-02 study evaluating Trodelvy® (sacituzumab govitecan-hziy) in patients with HR+/HER2- metastatic breast cancer who received prior endocrine therapy, CDK4/6 inhibitors and two to four lines of chemotherapy. The study met its primary endpoint with a statistically significant improvement in progression-free survival (PFS) versus physician’s choice of chemotherapy. The trial targeted a 30% reduction in the risk of disease progression or death. The primary endpoint results were consistent with those observed in the Phase 1/2 IMMU-132-01 study in a subset of HR+/HER2- metastatic breast cancer patients.1 The first interim analysis of the key secondary endpoint of overall survival in the TROPiCS-02 study demonstrated a trend in improvement for overall survival. Patients will be followed for a subsequent overall survival analysis. The safety profile for Trodelvy was consistent with prior studies, and no new safety concerns emerged in this patient population.

"Trodelvy demonstrated consistent activity in this difficult-to-treat patient population," said Merdad Parsey, MD, PhD, Chief Medical Officer, Gilead Sciences. "We are evaluating the data and will explore potential pathways with regulatory authorities to bring Trodelvy to this group of patients. As we work to expand the patient benefit of Trodelvy beyond its current indications for second-line metastatic triple-negative breast cancer and accelerated approval in second-line metastatic bladder cancer, we are pursuing studies across multiple tumor types and earlier lines of therapy."

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