Features of Recurrence of Bcra-Positive Ovarian Cancer

Abstract

The study included 160 patients with advanced ovarian cancer (OC) who underwent combined treatment from January 2000 to January 2013 at the N.N. Petrov Research Institute of Oncology. Compared to non-mutated patients, BRCA-positive patients were characterized by a longer platinum-free interval (BFI) (14 months [95% CI 9.6-36.4 months] versus 8 months [95% Ci 4.8-12.4 months]; P = 0.006), with the largest median of the BFI were established using the CAP scheme - 33.5 months versus 12 months using the TCbP scheme. Half of patients with a mutation in the BRCA1 gene (20/40 (50%)) had an isolated recurrence in the pelvic area versus 35/120 (29.2%) of patients without mutations (p = 0.00001). The progression of distant foci in the first recurrence of the disease in patients with mutations was significantly lower (15/40 (37.5%) versus 84/120 (70%), p = 0.00001). In addition 85% of recurrences in BRCA-positive patients were platinum-sensitive. Only the age of patients with advanced OC was an independent prognostic factor of BFI since the start of treatment (p = 0.00001).