Archives of gynecology and obstetrics · 2021
Real-world experience of olaparib as maintenance therapy in BRCA-mutated recurrent ovarian cancer.
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Cho Angela, Park Jeong-Yeol, Lee Shin-Wha, Kim Dae-Yeon, Suh Dae-Shik, Kim Jong-Hyeok, Kim Yong-Man, Kim Young-Tak
Аннотация
PURPOSE: The primary objective of our study was to investigate the effectiveness and safety of olaparib maintenance therapy in patients with BRCA-mutated recurrent ovarian cancer in daily practice. The secondary objective of this study was to identify prognostic factors associated with prolonged progression-free survival (PFS) in such patients.
METHODS: We conducted a retrospective analysis of 40 patients who received olaparib maintenance treatment. Data on clinicopathological factors, oncological outcomes, and adverse events were obtained from medical records and analyzed.
RESULTS: All patients had high-grade serous recurrent ovarian cancer with BRCA mutation and achieved complete or partial response to the most recent platinum-based chemotherapy. After a median follow-up of 14.3 months, the median PFS was 23.7 months (95% confidence interval, 14.1-33.4); however, the median overall survival was not reached. In the log-rank test, the PFS was significantly longer for patients with most recent platinum-free interval (PFI) ≥ 12 months, complete response to the last platinum-based chemotherapy, and less than three lines of previous chemotherapy (p = 0.005, p = 0.016, and p = 0.023, respectively). Most hematologic and non-hematologic adverse events were of grade 1 or 2, and the common adverse events were mostly related to myelosuppression.
CONCLUSION: Olaparib maintenance treatment in BRCA-mutated recurrent ovarian cancer is effective and safe in clinical practice. Most recent PFI, response to the last platinum-based chemotherapy, and the number of previous chemotherapy lines were associated with PFS in patients with BRCA-mutated recurrent ovarian cancer.
METHODS: We conducted a retrospective analysis of 40 patients who received olaparib maintenance treatment. Data on clinicopathological factors, oncological outcomes, and adverse events were obtained from medical records and analyzed.
RESULTS: All patients had high-grade serous recurrent ovarian cancer with BRCA mutation and achieved complete or partial response to the most recent platinum-based chemotherapy. After a median follow-up of 14.3 months, the median PFS was 23.7 months (95% confidence interval, 14.1-33.4); however, the median overall survival was not reached. In the log-rank test, the PFS was significantly longer for patients with most recent platinum-free interval (PFI) ≥ 12 months, complete response to the last platinum-based chemotherapy, and less than three lines of previous chemotherapy (p = 0.005, p = 0.016, and p = 0.023, respectively). Most hematologic and non-hematologic adverse events were of grade 1 or 2, and the common adverse events were mostly related to myelosuppression.
CONCLUSION: Olaparib maintenance treatment in BRCA-mutated recurrent ovarian cancer is effective and safe in clinical practice. Most recent PFI, response to the last platinum-based chemotherapy, and the number of previous chemotherapy lines were associated with PFS in patients with BRCA-mutated recurrent ovarian cancer.