Abstract
BackgroundManagement of refractory cervical cancers (CC) is a debated question and rises dilemma in clinical practice. This study aimed to assess the safety and effectiveness of bevacizumab combined with concurrent chemoradiotherapy in the treatment of refractory CC.MethodsA total of 129 patients with refractory CC who received radical concurrent chemoradiotherapy (CCRT) were included in this study. Among the patients, 64 received combination treatment with bevacizumab, while the 65 remaining patients did not receive bevacizumab. Treatment response was evaluated according to the Response Evaluation Criteria in Solid Tumorsversion1.1. The Cox proportional-hazards model was applied to determine prognostic factors associated with overall survival and the tumor response during treatment was analyzed for patients treated with bevacizumab.ResultsBevacizumab was an independent prognostic factor (P=0.017). Therefore, we only analyzed 64 patients who received combination treatment with bevacizumab. In the 64 patients treated with bevacizumab, the 3-year OS, locoregional relapse-free survival, and distant metastasis–free survival rates were 87.2%, 98.1%, and 81%, respectively. Complete clinical response rates were 37.8% (17/45) for patients with neoadjuvant chemotherapy and chemoradiotherapy after neoadjuvant chemotherapy (NACT), complete clinical response rates were 62.5% (40/64), 73.3% (33/45) and 52.6% (10/19) before brachytherapy (BT), respectively for the entire cohort, patients with NACT and chemoradiotherapy and patients with chemoradiotherapy only. The 2-year OS rate was higher for patients who achieved a complete clinical response BT than for patients who did not, 94.6% vs. 73.2%, P=0.03. Among the 64 patients who received it, 28 (43.8%) experienced hematological toxicities of grade 3 or 4, and 3 (4.7%) experienced grade 3 gastrointestinal toxicities.ConclusionsBevacizumab combined with radical chemoradiotherapy is a safe and tolerable treatment option for refractory CC, with quicker tumor regression and high OS, locoregional relapse-free survival, and distant metastasis–free survival rates.
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