The effectiveness of consolidation chemotherapy in high-risk early-stage cervical cancer patients following concurrent chemoradiation after radical surgery

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OBJECTIVE: Studies determining which early-stage cervical cancer patients with high-risk factors benefit from consolidation chemotherapy after postoperative concurrent chemoradiotherapy (CCRT) are limited and inconsistent. The aim of this study was to evaluate the value of consolidation chemotherapy in early-stage cervical cancer. METHODS: From 2010 to 2019, a retrospective review was conducted among high-risk early-stage cervical cancer patients who were treated with postoperative CCRT or consolidation chemotherapy after postoperative CCRT. Disease-free survival (DFS) and overall survival (OS) were calculated using the Kaplan-Meier method and compared using the log-rank test. RESULTS: A total of 293 patients with early-stage cervical cancer were included in this study. A total of 188 patients were in the consolidation chemotherapy group, and 105 patients were in the postoperative CCRT alone group. The median follow-up was 48.3 months (range: 3-123 months). In the survival analyses, no significant differences in DFS (P = 0.21) or OS (P = 0.15) were observed between the groups. The grade 3-4 leukopenia and neutropenia rates in the consolidation group were higher than those in the concurrent chemoradiotherapy alone group (54.8% vs. 28.6%, P = 0.02; 49.4% vs. 10.5%, P = 0.001, respectively). For patients with ≥2 positive lymph nodes or ≥2 high-risk factors, consolidation chemotherapy significantly improved DFS (P = 0.013 and P = 0.002) and OS (P < 0.001 and P < 0.001) compared with CCRT alone. CONCLUSION: For early-stage cervical cancer, consolidation chemotherapy after postoperative CCRT improved survival outcomes in patients with ≥2 positive lymph nodes or ≥2 high-risk factors.

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