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

Inclusion Criteria

• •Aged 20 years or older of Japanese women at the time of consent (the age of death, in case of dead patient)
• •Newly diagnosed as advanced OC (FIGO stage III - IV) with epithelial ovarian cancer, primary peritoneal cancer or fallopian-tube cancer \[or a combination of these cancers\] after January 1, 2019
• •Patients who have archived formalin-fixed paraffin-embedded (FFPE) samples of primary or peritoneal metastatic tumor collected after January 1, 2019
• •Patients who have undergone or are scheduled to undergo BRACAnalysis
• •Patients who give their written informed consent to participate in this study (However, the cases of death should be handled in accordance with the instructions of the Ethical Review Board of each site.)