Characterization of Epithelial Ovarian Cancer Patients in Terms of Homologous Recombination Phenotype - A Prospective Observational Study

Brief Summary

Detailed Description

The overall objective of the study is to demonstrate the distribution of ovarian cancer by HRD and BRCA1/2 mutational status and further characterize sub-cohorts of long- and short-term responders. Additionally, to collect representative clinical samples for further translational analyses. The overall objective is separated by two distinct observational periods defined as Observational Period 1 (OP1) and Observational Period 2 (OP2): * OP1: From date of diagnosis to date of first response assessment following 1L chemotherapy, progression or death, whichever occurs first * OP2: From date of first response assessment following 1L chemotherapy to maximum 36 months following 1L chemotherapy, death or withdrawal of consent, whichever occurs first. Objective for Observational Period 1 (OP1) The objective for OP1 is to demonstrate the distribution of ovarian cancer patients with FIGO stage I-II BRCA1/2mut ovarian cancer, or stage III-IV ovarian cancer in cohorts of BRCA1/2, HRD (either BRCA1/2 mutation and/or genomic instability), HRP and HR-unknown patients. Objective for Observational Period 2 (OP2) The objective for OP2 is to further characterize sub-cohorts of short-term responders (progressing \< 6 months following maintenance treatment) and long-term responders (progressing ≥ 32 months following maintenance treatment) in real-world cohorts of ovarian cancer patients. For FIGO stage I-II BRCA1/2mut or FIGO stage III-IV defined by HRD status determined by Myriad myChoice® CDx HRD test or non-Myriad local HRD test, and BRCA1/2 status. A total of 350 patients will be enrolled from hospitals in Denmark, Finland, Norway, and Sweden. Competitive enrollment will be applied. Eligible patients must have newly diagnosed histologically confirmed epithelial ovarian cancer: * FIGO stage I-II with a known BRCA1/2 mutation (germline/gBRCA or somatic /tBRCA) * FIGO stage III-IV of any histology of any histology.

Primary Outcomes

Secondary Outcomes

• Endpoints OP1 - 1.2(36 months)
• Endpoints OP1 - 1.3(36 months)
• Endpoints OP1 - 1.4(36 months)
• Endpoint OP2 - 2.2(36 months)
• Endpoints OP1 - 1.1(36 months)
• Endpoint OP2 - 2.1(36 months)