Low-dose vasopressin added to open-label vasopressors
Control
Noradrenaline added to open-label vasopressors
Population
778 patients with septic shock already receiving catecholamine vasopressors
Follow-up
90 days
Primary endpoint
28-day all-cause mortality
Result
396 patients received vasopressin and 382 noradrenaline. There was no significant difference in mortality between the groups.
Secondary endpoints
90-day mortality, organ dysfunction, serious adverse events
Low-dose vasopressin did not reduce mortality rates as compared with norepinephrine among patients with septic shock who were treated with catecholamine vasopressors.
The trial authors, in the published abstract
How it has aged
Vasopressin remains widely used as a catecholamine-sparing agent, which is a defensible aim this trial neither supports nor refutes — it tested mortality, and found none. The same distinction applies to ATHOS-3 and angiotensin II.
Publications
Vasopressin versus norepinephrine infusion in patients with septic shock
Russell JA, Walley KR, Singer J, et al. Vasopressin versus norepinephrine infusion in patients with septic shock. N Engl J Med 2008 Feb 28;358(9):877-87.
No mortality difference versus noradrenaline
Vasopressin used as an addition to existing catecholamines