Abstract
Whether consolidation chemotherapy (CCT) after chemoradiotherapy (CRT) helps in the treatment of locally advanced non-small cell lung cancer (LA-NSCLC) is controversial. The aim of this meta-analysis was to evaluate the impact of CCT on overall survival (OS), progression-free survival (PFS), overall response rate (ORR) and toxicities in patients with inoperable LA-NSCLC. PubMed, Embase, The Cochrane Library, WanFang, VIP, and CNKI were searched to identify any relevant publications. After screening the literature and completing quality assessment and data extraction, the meta-analysis was performed using RevMan5.3 software. Ultimately, 5 eligible studies with a total of 1036 patients were selected for the present meta-analysis. The results of the analysis indicated that treatment of LA-NSCLC patients with CRT followed by CCT improved OS (pooled HR0.85; 95% CI 0.73-0.99; P=0.03), but did not improve PFS (pooled HR0.78; 95% CI 0.60-1.02; P=0.07) and ORR (P=0.26). Although it could increase the risk of grade ≥3 infection (P=0.04), it may not increase the risk of grade ≥3 radiation pneumonitis (P=0.09) during the CCT period. CCT after concurrent CRT may provide additional benefits in the treatment of LA-NSCLC. Although this therapeutic strategy did not prolong PFS, further assessment is warranted.
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