Dexamethasone treatment for the acute respiratory distress syndrome
DEXA-ARDS trial design and results
Design
Multicentre, randomised controlled trial, stopped early for low enrolment
Treatment
Dexamethasone for up to 10 days
Control
Routine intensive care
Population
277 patients with established moderate-to-severe ARDS
Follow-up
60 days
Primary endpoint
Ventilator-free days at 28 days
Result
Mean ventilator-free days were higher with dexamethasone, a between-group difference of 4.8 days (95% CI 2.57 to 7.03, p<0.0001). Sixty-day mortality was also lower with dexamethasone. The trial was stopped after enrolling 88% of its planned sample because of a low enrolment rate.
Secondary endpoints
60-day all-cause mortality, ICU length of stay, adverse events
Early administration of dexamethasone could reduce duration of mechanical ventilation and overall mortality in patients with established moderate-to-severe ARDS.
The trial authors, in the published abstract
How it has aged
Positive, but slow-recruiting, unblinded, and stopped before completion — a combination that argues for caution. It landed just before the pandemic made dexamethasone in hypoxaemic respiratory failure routine for other reasons, so its independent contribution has never been cleanly retested.
Publications
Dexamethasone treatment for the acute respiratory distress syndrome: a multicentre, randomised controlled trial
Villar J, Ferrando C, Martínez D, et al. Dexamethasone treatment for the acute respiratory distress syndrome: a multicentre, randomised controlled trial. Lancet Respir Med 2020 Mar;8(3):267-276.