FLABRA, Frontline Approach for BRCA Testing in an Ovarian Cancer Population: A Latin America Epidemiologic Study

Abstract

Aim: FLABRA evaluated the prevalence of BRCA mutations, genetic counseling and management approaches in patients with ovarian cancer in Latin America. Patients & methods: Patients with ovarian cancer from six Latin–American countries were enrolled. Tumor samples were tested for BRCA mutations (BRCAmut). In cases with BRCAmut, blood samples were analyzed to determine germline versus somatic mutations. Medical records were reviewed for counseling approach and treatment plan. Results: From 472 patients enrolled, 406 samples yielded conclusive results: 282 were BRCA wild-type (BRCAwt), 115 were BRCAmut and nine were variants of uncertain significance. In total, 110/115 were tested for germline mutations (77 germline and 33 somatic). Conclusion: Tumor testing to identify mutations in BRCA1/2 in ovarian cancer can help optimize treatment choices, meaning fewer patients require germline testing and genetic counseling, a scant resource in Latin America.

Clinical trial registration: NCT02984423 (ClinicalTrials.gov)