Article Text
Abstract
Introduction To evaluate whether erythropoiesis-stimulating agents (ESAs) treatment for chemotherapy-induced anemia (CIA) affect progression-free survival (PFS) in patients who received front-line chemotherapy following surgery for ovarian cancer.
Methods We retrospectively reviewed all consecutive patients who received front-line chemotherapy after surgery during 2013–2019 from seven institutions. Patients were divided according to the use of ESA during front-line chemotherapy. Primary endpoint was PFS. The secondary endpoint included occurrence of thromboembolism. A propensity score matching (PSM) analysis was used to compare survival in matched cohorts.
Results Overall, 2,147 patients (433 for ESA and 1,714 for No-ESA) were identified with median follow-up of 44.0 months. ESA group showed significantly higher proportion of stage III/IV disease (81.8% vs 61.1%; P<0.001) and postoperative gross residual (32.3% vs 21.2%; P<0.001) compared to No-ESA group. In multivariable Cox regression, use of ESA did not affect PFS (adjusted hazard ratio, 1.034; 95% confidence interval [CI], 0.891–1.201; P=0.661). The incidence of thromboembolism was 10.2% in the ESA group and 4.6% in the No-ESA group (adjusted odds ratio, 6.581; 95% CI, 3.261–13.281; P<0.001). When comparing the well-matched cohorts after PSM, PFS did not differ between the ESA (median PFS 38 months, range 0.1–77.2 months) and No-ESA group (median PFS 35 months, range 2.2–81.2 months)(P = 0.13, log rank test).
Conclusion/Implications Use of ESA during front-line chemotherapy did not negatively affect PFS in patients with ovarian cancer after surgery but increased risk of thromboembolism.