LI Le 1,2 , YANG Nan 3,4 , ZHOU Qi 1,3,4 , LUO Xufei 5 , YUE Hongmei 1,2
  • 1. The First Medical School of Lanzhou University, Lanzhou 730000, P.R.China;
  • 2. Department of Respiratory, the First Hospital of Lanzhou University, Lanzhou 730000, P.R.China;
  • 3. Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, P.R.China;
  • 4. Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province, Lanzhou 730000, P.R.China;
  • 5. School of Public Health, Lanzhou University, Lanzhou 730000, P.R.China;
YUE Hongmei, Email: yuehongmeil8@sina.com
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Objective To systematically review the efficacy and safety of simvastatin and its different doses in the adjunct therapy of chronic obstructive pulmonary disease (COPD).Methods PubMed, EMbase, Web of Science, The Cochrane Library, CNKI, WanFang Data, CBM and VIP databases were electronically searched to collect randomized controlled trials (RCTs) on adjunct therapy of simvastatin in patients with COPD from inception to May 15th, 2020. Two reviewers independently screened literature, extracted data and assessed risk bias of included studies; then, meta-analysis was performed by using Stata 14.0 software.Results A total of 22 RCTs involving 2 377 patients were included. The results of meta-analysis showed that treatment with 20 mg simvastatin could improve FEV1%pred, FEV1/FVC, and reduce inflammatory indexes such as CRP, hs-CRP, IL-8 and TNF-α, while 40 mg failed to improve. Simvastatin could reduce COPD score (CAT), but failed to increase the 6-minute walking distance or alleviate acute exacerbation.Conclusions Current evidence shows that treatment with 20 mg simvastatin can improve pulmonary function, reduce inflammatory index and optimize CAT score in COPD patients, but it cannot increase the 6-minute walking distance and reduce the number of acute exacerbations of COPD. Due to the limited quantity and quality of included studies, the above conclusions are needed to be verified by more high-quality studies.

Citation: LI Le, YANG Nan, ZHOU Qi, LUO Xufei, YUE Hongmei. Efficacy and safety of simvastatin in the adjunct therapy of chronic obstructive pulmonary disease: a meta-analysis. Chinese Journal of Evidence-Based Medicine, 2021, 21(2): 145-152. doi: 10.7507/1672-2531.202006107 Copy

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