Characterizing the Cross-sectional Approach to Investigate the Prevalence of Tissue BRCA1/2 Mutations in Newly Diagnosed Advanced Ovarian Cancer Patients

Study design:This is a multi-center, observational study in Japan. Patients with newly diagnosed FIGO stage III - IV advanced OC will be enrolled sequentially. In this study, data of 200 subjects will be collected at approximately 20 sites in Japan. To reduce regional bias of study sites, the number of enrolled patients per site will be capped. Study population:Patients with FIGO stage III - IV epithelial ovarian cancer Drug exposure:Not applicable Planned study sites and sample size:The objective number of patients will be 200 from approximately 20 hospitals.