• Peirong Wang, Mingwei Zhang, Chunlin Ke, and Chuanshu Cai.
• Department of Radiation Oncology, the First Affiliated Hospital of Fujian Medical University, Fujian, China.
• Medicine (Baltimore). 2020 Mar 1; 99 (10): e19360e19360.

BackgroundA systemic review and meta-analysis of randomized controlled trials (RCTs) was performed to compare the efficacy, toxicity and safety of concurrent chemoradiotherapy (CCRT) with or without induction chemotherapy (IC) for locoregionally advanced nasopharyngeal carcinoma (NPC).MethodsResearch searching was performed in Web of Science, PubMed, The Cochrane Library, Embase, Chinese Biomedical Database, Chinese National Knowledge Infrastructure, Chongqing VIP Database for Chinese Technical Periodicals and Wanfang Database. RCTs including patients diagnosed with locoregionally advanced NPC without metastasis and randomly treated with IC plus CCRT and CCRT alone were included. Survival and outcome data were extracted and meta-analysis was performed using the Revman 5.3.0 software.ResultsTen RCTs (2280 patients) were selected and used for pooled meta-analysis. In comparison with CCRT, IC plus CCRT treatment significantly improved the overall survival (OS; HR = 0.70, 95%CI 0.56-0.87, P = .002), progression-free survival (PFS; HR = 0.75, 95%CI 0.65-0.87, P < .0001), distant metastasis failure-free survival (DMFS; HR = 0.71, 95%CI 0.58-0.85, P = .0003) and loco-regional failure-free survival (LFES; HR = 0.72, 95%CI 0.59-0.88, P = .002) of patients with locoregionally advanced NPC. Patients treated with IC and CCRT had higher incidence of grade 3-4 leucopenia and thrombocytopenia than patients treated with CCRT alone (P < .0001). No significant difference in other grade 3-4 adverse events and radiation toxicity was observed between the two groups. IC combined with CCRT improved the survival of patients with locoregionally advanced NPC.ConclusionsCombined IC and CCRT therapy was an efficacy treatment regimen for locoregionally advanced NPC.

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