Assessment of the efficacy and safety of Ribavirin in treatment of coronavirus-related pneumonia (SARS, MERS and COVID-19): A protocol for systematic review and meta-analysis
Wang, Yinhua et al.
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Background: The new coronavirus-related pneumonia is causing a global pandemic without specific antiviral drug. Ribavirin has activity against extensive RNA and DNA viruses. We plan to systematically review the use of ribavirin in patients with coronavirus-related pneumonia and meta-analyze the data with updated studies. Methods: EMBASE, PubMed, Cochrane Library, and China National Knowledge Infrastructure will be searched from 2002 to June 2021 without language restriction to identify randomized controlled trials. Subjects consist of patients with coronavirus-related pneumonia. Ribavirin of any dose or route will be compared with the control group of other medication, placebo, or no medication. The primary outcome is the hospital mortality. The secondary outcome includes the hospital length of stay, ventilator-free days in 28 days, median time from start of study treatment to negative nasopharyngeal swab, and adverse events. The Mantel-Haenszel method will be used for analysis of dichotomous data and the risk ratios will be reported with 95% confidence interval; the inverse-variance method will be used for continuous data and the mean differences will be reported. Sensitivity and subgroup analyses will be further performed. The funnel plots or Egger test will be used for detection of publication bias. The GRADE methodology will be used for summarizing the quality of evidence. The trial sequential analysis will be conducted to test whether the current meta-analysis is conclusive. Results: The efficacy and safety of ribavirin for treatment of coronavirus-related pneumonia will be systematically reviewed and summarized. The forthcoming results of the ongoing studies focusing on ribavirin in patients with the 2019 noel coronavirus disease will also be included. Conclusion: The relevant studies will be summarized and advanced evidence will be provided.