Early High-Dose Intravenous Vitamin C Treatment for Shock After Cardiac Arrest A Multicenter Phase 2 Trial

What this Trial Is About

Researchers are investigating the use of high-dose intravenous vitamin C combined with thiamine vitamin B1 to manage post-cardiac arrest shock in patients admitted to intensive care units after out-of-hospital cardiac arrest. This condition often leads to cardiac and circulatory failure, causing multi-organ failure and early death in a significant portion of patients. The study is a phase II, multicenter, randomized controlled trial comparing standard care with the addition of high-dose vitamin C and thiamine to assess potential benefits on shock recovery and neurological outcomes. Participants are randomly assigned to one of two groups the control group receiving standard post-cardiac arrest care according to international guidelines, and the experimental group receiving standard care plus high-dose intravenous vitamin C at 50 mgkg every 6 hours for 3 days, starting within an hour after randomization, along with intravenous thiamine 200 mg twice daily for 3 days. From day 4 onwards, standard vitamin C supplementation up to 1000 mg daily and thiamine are allowed in both groups. During the 28-day participation period, patients will be closely monitored for recovery from shock, neurological function, and organ failure. Assessments include measuring the time to stop vasopressors by day 3, survival rates related to shock by day 7, neurological status at day 28, maximum vasopressor doses within 3 days, changes in organ failure scores, and arterial lactate levels. Safety and effectiveness data will be collected throughout to evaluate the impact of the vitamin C and thiamine treatment alongside standard care.

Efficacy of Early Intravenous High-dose Vitamin C in Post-cardiac Arrest Shock.