[Efficacy and safety of anti-interleukin-5 therapy in patients with asthma: systematic reviews].

Objective To evaluate the efficacy and safety of anti-Interleukin-5 therapy in patients with asthma. Methods Data were collected from PubMed, E-Mbase, Springer, Ovid, Cochrane Library, ClinicalTrials.gov, CNKI and Wanfang database (-Feb 2017). Bibliographies of the retrieved articles were checked and analyzed. Results Twenty publications involving a total of 6 406 patients were used in the analysis, including 23 randomly controlled trials (RCTs) which compared anti-interleukin 5 monoclonal antibody with placebo. Pooled analyses showed that anti-interleukin 5 monoclonal antibody significantly reduced exacerbation risk [RR=0.66, 95%CI(0.59, 0.73)], increased FEV1[MD=0.10, 95%CI(0.07, 0.13)] and FEV1% predicted [MD=3.90, 95%CI(1.86, 5.95)], and improved the scores on the Asthma Quality of Life Questionnaire (AQLQ) [MD=0.24, 95%CI(0.16, 0.32)]. Anti-interleukin 5 monoclonal antibody was also associated with significantly decreased risk of adverse events than placebo[OR=0.71, 95%CI(0.58, 0.87)]. Conclusion Anti-interleukin 5 monoclonal antibody reduces the risk of exacerbations and improves quality of life in patients with asthma, and is tolerated well. Key words: Interleukin-5; Antibodies; Asthma; Meta analysis