Abstract
Background: In-hospital mortality in comatose patients resuscitated from out-of-hospital cardiac arrest (OHCA) is ≈50%. In OHCA patients, the leading cause of death is neurological injury secondary to ischemia and reperfusion. Glucagon-like peptide-1 analogs are approved for type 2 diabetes mellitus; preclinical and clinical data have suggested their organ-protective effects in patients with ischemia and reperfusion injury. The aim of this trial was to investigate the neuroprotective effects of the glucagon-like peptide-1 analog exenatide in resuscitated OHCA patients. Methods: We randomly assigned 120 consecutive comatose patients resuscitated from OHCA in a double-blind, 2-center trial. They were administered 17.4 μg exenatide (Byetta) or placebo over a 6-hour and 15-minute infusion, in addition to standardized intensive care including targeted temperature management. The coprimary end points were feasibility, defined as initiation of the study drug in >90% patients within 240 minutes of return of spontaneous circulation, and efficacy, defined as the geometric area under the neuron-specific enolase curve from 24 to 72 hours after admission. The main secondary end points included a composite end point of death and poor neurological function, defined as a Cerebral Performance Category score of 3 to 5 assessed at 30 and 180 days. Results: The study drug was initiated within 240 minutes of return of spontaneous circulation in 96% patients. The median blood glucose 8 hours after admission in patients receiving exenatide was lower than that in patients receiving placebo (5.8 [5.2-6.7] mmol/L versus 7.3 [6.2-8.7] mmol/L, P<0.0001). However, there were no significant differences in the area under the neuron-specific enolase curve, or a composite end point of death and poor neurological function between groups. Adverse events were rare with no significant difference between groups. Conclusions: Acute administration of exenatide to comatose patients in the intensive care unit after OHCA is feasible and safe. Exenatide did not reduce neuron-specific enolase levels and did not significantly improve a composite end point of death and poor neurological function after 180 days. Clinical Trial Registration: URL: http://www.clinicaltrials.gov. Unique identifier: NCT02442791.
Original language | English |
---|---|
Journal | Circulation |
Volume | 134 |
Issue number | 25 |
Pages (from-to) | 2115-2124 |
Number of pages | 10 |
ISSN | 0009-7322 |
DOIs | |
Publication status | Published - 20 Dec 2016 |
Keywords
- Adult
- Aged
- Blood Glucose
- Double-Blind Method
- Female
- Glucagon-Like Peptide 1
- Hospital Mortality
- Humans
- Male
- Middle Aged
- Neuroprotective Agents
- Out-of-Hospital Cardiac Arrest
- Peptides
- Phosphopyruvate Hydratase
- Placebo Effect
- Survival Rate
- Treatment Outcome
- Venoms
- Ventricular Fibrillation
- Journal Article
- Multicenter Study
- Randomized Controlled Trial