Insufficient serum caspofungin levels in a paediatric patient on ECMO

Birgit C P Koch1, Enno D Wildschut2, Anna L de Goede1

  • 1Hospital Pharmacy Erasmus MC, PO box 2040, 3000 CA, Rotterdam, The Netherlands.

Insights

This study found that a pediatric patient on extracorporeal membrane oxygenation (ECMO) experienced subtherapeutic caspofungin levels. Therapeutic drug monitoring is recommended for antifungal dosing in children undergoing ECMO.

Area of Science:

  • Pharmacology
  • Critical Care Medicine
  • Pediatrics

Background:

  • Caspofungin is a lipophilic echinocandin antifungal agent.
  • Pharmacokinetics of caspofungin in pediatric populations are not well-established.
  • Extracorporeal membrane oxygenation (ECMO) can alter drug pharmacokinetics.

Purpose of the Study:

  • To investigate the pharmacokinetics of caspofungin in a pediatric patient receiving ECMO.
  • To assess caspofungin exposure in a critically ill child with severe pneumonia and sepsis on ECMO.

Main Methods:

  • Case report of a pediatric patient on ECMO.
  • Administration of caspofungin at normal to high dosages.
  • Monitoring of caspofungin drug levels.

Main Results:

  • The patient exhibited subtherapeutic exposure to caspofungin.
  • Despite adequate dosing, drug levels remained below therapeutic targets.
  • ECMO support potentially impacted caspofungin pharmacokinetics.

Conclusions:

  • Therapeutic drug monitoring for caspofungin is crucial in pediatric patients on ECMO.
  • Standard dosing may not achieve therapeutic concentrations in this population.
  • Further research is needed to optimize antifungal dosing strategies during ECMO.

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