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find Author "ZHU Yuxi" 1 results
  • Efficacy and safety of immune checkpoint inhibitor and bevacizumab combined with chemotherapy in the first-line treatment of advanced wild-type non-squamous non-small cell lung cancer: a network meta-analysis

    ObjectiveTo analyze the efficacy and safety of immunotherapy and bevacizumab combined with chemotherapy (BIC), bevacizumab combined with chemotherapy (BC), chemotherapy (CT), immunotherapy combined with chemotherapy (IC), bevacizumab combined with immunotherapy (BI), bevacizumab (B) in the first-line treatment of advanced wild-type non-squamous non-small cell lung cancer. MethodsThe PubMed, Embase, Cochrane Library and Web of Science databases were searched to collect phase Ⅱ/Ⅲ randomized controlled trials (RCTs) related to the objectives of the study from January 2010 to December 1, 2022. After two investigators independently screened the literatures, extracted the data and evaluated the risk of bias of the included studies, a reticular meta-analysis was performed using R 3.6.1 software. ResultsA total of 11 RCTs were finally included, including 5 329 patients and six treatment combinations. Meta-analysis results showed that BIC was superior to CT for progression-free survival (PFS) (HR=0.34, 95% CI 0.18 to 0.69), but BIC did not show a significant advantage over the other groups for overall survival (OS). Bayesian ranking results showed that the BIC group had the greatest probability in terms of OS, PFS, and ORR. Among all programmed death ligand 1 (PD-L1) expressing subgroups, there was no significant difference in OS between BIC, BC, IC, CT, BI, and B. Compared with CT, IC was significantly improved in OS (HR=0.68, 95%CI 0.52 to 0.92), PFS (HR=0.58, 95%CI 0.45 to 0.75), and ORR (HR=0.47, 95%CI 0.33 to 0.66). ConclusionIn the first-line treatment of wild-type advanced non-squamous NSCLC, immunotherapy and bevacizumab combined with chemotherapy may improve the efficacy in the short term, but do not change the long-term survival time. Immunotherapy combined with chemotherapy can significantly improve the survival time and prognosis of patients compared with chemotherapy alone. Due to the limited quantity and quality of the included studies, more high-quality studies are needed to verify the above conclusion.

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