• 1. Department of Thoracic Surgery, the Second Hospital of Lanzhou University, Lanzhou, 730000, P.R.China;
  • 2. The Evidence Based Medicine Center of Lanzhou University, Lanzhou, 730000, P.R.China;
LI Bin, Email: dr.leebin@outlook.com
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Objective To systematically evaluate the benefits and safety of anti-PD-1/PD-L1 antibody in the treatment of advanced non-small cell lung cancer (NSCLC). Methods Randomized controlled trials (RCTs) about anti-PD-1/PD-L1 antibody versus conventional-dose chemotherapy in the treatment of advanced NSCLC were searched in PubMed, EMbase, The Cochrane Library (Issue 8, 2016), Web of Science, CBM, CNKI, and VIP databases from inception to September 2016. Two reviewers independently screened literature, extracted data and evaluated the risk of bias of eligible studies, then meta-analysis was conducted by using RevMan 5.3 software. Results A total of five RCTs involving 2 580 patients were included. The results of meta-analysis showed that: the objective response rate (ORR) and one year overall survival rate (OSR1y) in anti PD-1/PD-L1 monoclonal antibody group were higher than that of the conventional chemotherapy group (RR=1.86, 95%CI 1.37 to 2.52,P<0.001; RR=1.37, 95%CI 1.23 to 1.52,P<0.001, respectively). However, there were no significant differences between two groups in one-year progression-free survival rate (PFSR1y) (RR=1.85, 95%CI 0.61 to 5.59,P=0.28) and disease control rate (DCR) (RR=1.13, 95%CI 0.76 to 1.68,P=0.55). With regard to untoward effect, rate of adverse effects (AEs) and AEs of 3-5 grade in anti PD-1/PD-L1 monoclonal antibody group were higher than those of the conventional chemotherapy group (RR=0.85, 95%CI 0.76 to 0.95,P=0.004; RR=0.28, 95%CI 0.18 to 0.43,P<0.001), the difference was statistically significant. But there was no significant difference in AEs to discontinuation between the two groups (RR=0.60, 95%CI 0.26 to 1.39,P=0.23). Conclusion Compared with conventional-dose chemotherapy, anti-PD-1/PD-L1 antibody has considerable current effect and safety in the treatment of advanced NSCLC.

Citation: FENG Haiming, ZHAO Ye, JING Tao, MA Jianxing, LI Bin, WANG Cheng. Efficacy and safety of anti PD-1/PD-L1 antibodies in the treatment of advanced non-small cell lung cancer: a meta-analysis. Chinese Journal of Evidence-Based Medicine, 2017, 17(2): 144-151. doi: 10.7507/1672-2531.201611027 Copy

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