| Summary: | Objective: This meta-analysis aims to assess the efficacy and safety of granulocyte-macrophage colony-stimulating factor (GM-CSF) antibodies on COVID-19. Methods: Relevant literatures about GM-CSF antibody treatment in COVID-19 patients were searched from the PubMed, Cochrane Library, Embase, Google scholar, and Baiduscholar databases from the COVID-19 outbreak in December 2019 until 1 January 2021. The primary outcomes included the death, intensive care unit (ICU) admission risk, ventilation requirement, and secondary infection. Results: A total of 12 eligible literature involving 8979 COVID-19 patients were recruited, and they were divided into experimental group ( n = 2673) and control group ( n = 6306). Using a random-effect model, it is found that the GM-CSF antibody treatment was associated with a 23% decline of the risk of death [odd’s ratio (OR): 0.34, 95% confidence interval (CI): 0.21–0.56, p < 0.0001] and a 20% enhancement of ventilation (OR: 1.47, 95% CI: 1.19, 1.80, p = 0.0002). GM-CSF antibody treatment did not have a significant correlation to secondary infection and increased risk of ICU admission in COVID-19 patients, which may be attributed to the older age and the length of stay. Conclusions: Severe COVID-19 patients can benefit from GM-CSF antibodies.
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