A Phase 3 Comparison of Platinum-based Therapy With TSR-042 and Niraparib Versus Standard of Care (SOC) Platinum-based Therapy as First-line Treatment of Stage III or IV Nonmucinous Epithelial Ovarian Cancer

ENGOT-0V44 The FIRST (First-line Ovarian Cancer Treatment With Niraparib Plus TSR-042) Study: A Randomized, Double-blind, Phase 3 Comparison of Platinum-based Therapy With TSR-042 and Niraparib Versus Standard of Care Platinum-based Therapy as First-line Treatment of Stage III or IV Nonmucinous Epithelial Ovarian Cancer

Ovarian cancer is a heterogeneous disease, characterized by complex molecular and genetic changes. The high expression of vascular endothelial growth factor (VEGF) receptor, programmed death receptor ligands 1 (PD-L1) expression, and deoxyribonucleic acid (DNA) damage in ovarian tumors provide several targets for treatment and maintenance of disease response. Given the unmet medical need of participants with advanced or metastatic ovarian cancer, this study design will enable investigators to provide participants with current SOC for ovarian cancer for the duration of the study. This is a global, multicenter, randomized, double-blind, controlled Phase 3 study that will primarily compare progressive survival rate of PD-L1 positive patients and also to compare progression-free survival (PFS) of all participants with Stage III or IV high-grade nonmucinous epithelial ovarian cancer treated with platinum-based combination therapy, dostarlimab, and niraparib to SOC platinum-based combination therapy. The currently recommended SOC therapy for the first line treatment of Stage III or IV ovarian cancer is the combination of paclitaxel and carboplatin, with or without concurrent and maintenance bevacizumab. Participants will receive SOC during the chemotherapy Run-In period (cycle 1) before randomization to study treatment (cycle 2). Concurrent bevacizumab use must be determined prior to randomization at cycle 2. Approximately 1228 participants will be enrolled into the study and the duration of the study will be approximately 78 months.

Clinical Trial: A Phase 3 Comparison of Platinum-based Therapy With TSR-042 and Niraparib Versus Standard of Care (SOC) Platinum-based Therapy as First-line Treatment of Stage III or IV Nonmucinous Epithelial Ovarian Cancer

A Phase 3 Comparison of Platinum-based Therapy With TSR-042 and Niraparib Versus Standard of Care (SOC) Platinum-based Therapy as First-line Treatment of Stage III or IV Nonmucinous Epithelial Ovarian Cancer

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