Multimodal Therapeutic Approach of Cytokine Release Syndrome Developing in a Child Given Chimeric Antigen
Gabriella Bottari1, Pietro Merli2, Isabella Guzzo3
1Pediatric Intensive Care Unit, Department of Pediatric Anesthesia and Critical Care, Bambino Gesù, Children's Hospital, IRCSS, Rome, Italy.
Objectives:
To describe a pediatric case of cytokine release syndrome secondary to chimeric antigen receptor-modified T cells associated with acute respiratory distress syndrome.
Design:
Case report.
Setting:
PICU.
Patients:
A 14-year-old boy with refractory B cell precursor acute lymphoblastic leukemia given chimeric antigen receptor cells developed severe cytokine release syndrome 7 days after the drug product infusion with progressive respiratory failure. He was admitted to PICU with a clinical picture of acute respiratory distress syndrome, requiring mechanical ventilation, and secondary hemophagocytic lymphohistiocytosis.
Interventions:
Hemoadsorption with cartridge column (Cytosorb) in combination with continuous renal replacement therapy was associated to the anti-cytokine therapy (tocilizumab, a monoclonal antibody targeting interleukin-6 receptor).
Measurements And Main Results:
Decrease of the inflammatory biomarkers (ferritin, interleukin-6, interleukin-10) in the first 96 hours associated with a progressive improvement of acute respiratory distress syndrome (Pao2/Fio2 ratio) 7 day after the start of the multimodal treatment.
Conclusions:
This case suggests that hemoadsorption with cartridge column in combination with continuous renal replacement therapy and tocilizumab is safe and potentially effective in pediatric patients with severe cytokine release syndrome.

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