ICU sedation, delirium & recovery

Population pharmacokinetics of dexamethasone in critically ill COVID-19 patients: Does inflammation play a role?

J Crit CarePublished Population pharmacokinetic study

Authors' conclusion

Dexamethasone PK parameters in ICU COVID patients were substantially different from those from non-ICU non-COVID patients, and inflammation may play an important role in dexamethasone exposure.

Study context

Population
Critically ill COVID-19 patients receiving fixed-dose IV dexamethasone (6 mg/day)51 samples
Participants
18 patients
Outcome
Dexamethasone population PK parameters and relevant covariates
Methodological detailsretrospective, pilot study, NONMEM modelling
  • Retrospective
  • Pilot study
  • NONMEM modelling

Main finding

As reported in the abstract

Population PK estimates (two-compartment model)

Clearance (mean population estimate; inter-individual variability 62.9%)

2.85 L/h

Central volume of distribution

15.4 L

Peripheral volume of distribution

12.3 L

Inter-compartmental distribution clearance

2.1 L/h

Observational data: associations, not effects.

Original publication

Population pharmacokinetics of dexamethasone in critically ill COVID-19 patients: Does inflammation play a role? J Crit Care. Published 3 August 2023. doi:10.1016/j.jcrc.2023.154395

Composed by AI from the published abstract and checked against it. How Briefs are made →

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