Five-year survival decreases over time in patients with BRCA-mutated ovarian cancer: a systemic review and meta-analysis.

International Journal of Gynecological Cancer : Official Journal of the International Gynecological Cancer Society
Chen NahshonOfer Lavie

Abstract

Short-term survival rates of patients with BRCA-mutated ovarian cancer have been previously shown to be longer than those of non-carriers. We aimed to study the long-term survival rates of these patients and investigate whether the 5-year advantage decreases over time. A systematic review of the literature was conducted according to the Preferred Reporting Items for Systematic reviews and Meta-Analyzes (PRISMA) statement. The study protocol can be assessed at PROSPERO International prospective register of systematic reviews (http://www.crd.york.ac.uk/PROSPERO, registration number CRD42019137455). We considered for inclusion studies providing Kaplan-Meier survival curves up to and including 10 years, comparing patients with ovarian cancer with and without BRCA mutations. Our main outcome was the conditional probability of surviving an additional 5 years. A total of 13 references comprising 4565 patients was analyzed, of which 1131 BRCA1/2-mutated carriers and 3434 non-carriers were included. The expected higher 5-year survival rate in BRCA-mutated patients was observed (risk difference (RD)=14.9%, p=0.0002, risk ratio (RR)=1.36, p=0.001). Ten-year survival rates were comparatively less improved in BRCA-mutated patients (RD=8.6%,...Continue Reading

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