Case Report: Use of Anakinra in Multisystem Inflammatory Syndrome During COVID-19 Pandemic

Sara Della Paolera1, Erica Valencic2, Elisa Piscianz2

  • 1Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy.

Insights

Anakinra, an IL-1 receptor antagonist, shows promise for treating severe Pediatric Multi-inflammatory Syndrome (PIMS-TS) or Multisystem Inflammatory Syndrome (MIS-C) in children, especially those with shock unresponsive to standard treatments.

Area of Science:

  • Pediatric rheumatology
  • Infectious diseases
  • Critical care medicine

Background:

  • Multisystem Inflammatory Syndrome in Children (MIS-C) is a severe condition linked to COVID-19, presenting with features similar to Kawasaki disease.
  • MIS-C can lead to critical complications such as myocarditis and shock.
  • Current treatments include intravenous immunoglobulin (IVIG) and systemic glucocorticoids, but responses can be variable.

Observation:

  • Two pediatric patients with MIS-C complicated by shock showed poor response to IVIG and glucocorticoids.
  • Anakinra, an IL-1 receptor antagonist, was administered to these patients.
  • Both patients experienced rapid clinical and biochemical improvement after anakinra treatment.

Findings:

  • Anakinra demonstrated a favorable safety profile in these severe MIS-C cases.
  • IL-1 blockade with anakinra appears effective in managing refractory MIS-C with shock.
  • This suggests anakinra as a potential therapeutic option for severe pediatric inflammatory syndromes associated with COVID-19.

Implications:

  • Further controlled clinical trials are warranted to confirm anakinra's efficacy and safety in MIS-C.
  • Establishing precise criteria for anakinra use in MIS-C patients is crucial.
  • Anakinra may offer a new treatment avenue for children with severe COVID-19-related inflammatory conditions.

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