Tocilizumab and COVID-19: a meta-analysis of 2120 patients with severe disease and implications for clinical trial methodologies

Turk J Med Sci. 2021 Jun 28;51(3):890-897. doi: 10.3906/sag-2010-131.

Abstract

Background/aim: Since the outbreak of the COVID-19, numerous therapies to counteract this severe disease have emerged. The benefits of Tocilizumab for severely infected COVID-19 patients and the methodologies of ongoing clinical trials are explored.

Materials and methods: A systematic search adhering to PRISMA guidelines was conducted in PubMed, Cochrane Central, medRxiv, and bioRxiv using the following keywords: “Tocilizumab,” “Actemra,” “COVID-19.” An additional subsearch was conducted on Clinicaltrials.gov to locate ongoing tocilizumab trials.

Results: A total of 13 studies were included in the meta-analysis comprising 2120 patients. The treatment group had lower mortality compared to the control group (OR = 0.42, 95% CI = 0.26 to 0.69, P = 0.0005, I2 = 55%). A descriptive analysis of 50 registered trials was conducted.

Conclusion: This review meta-analyzed the therapeutic benefits of tocilizumab in COVID-19 patients with severe disease for mortality, mechanical ventilation, and the characteristics of COVID-19 registered trials.

Keywords: Tocilizumab; actemra; coronavirus; COVID-19; clinical trial; cytokine storm syndrome.

Publication types

  • Meta-Analysis
  • Systematic Review

MeSH terms

  • Antibodies, Monoclonal, Humanized / therapeutic use*
  • COVID-19 / epidemiology
  • COVID-19 Drug Treatment*
  • Humans
  • Pandemics*
  • SARS-CoV-2*
  • Treatment Outcome

Substances

  • Antibodies, Monoclonal, Humanized
  • tocilizumab