RecruitingPhase 2Drug trialNiraparib Maintenance in HRD-Positive Advanced Ovarian Cancer Following Front-Line Chemotherapy + BevacizumabThis study is a multicenter, open-label, single-arm phase II clinical trial investigating the efficacy and safety of niraparib monotherapy maintenance in HRD-positive newly diagnosed advanced epithelial ovarian cancer (EOC), including primary peritoneal and/or fallopian tube tumors, following response to front-line chemotherapy in combination with bevacizumab. A total of 116 patients will be enrolled.