The trial’s Data Safety Monitoring Board (DSMB) closed enrollment when an analysis of the results revealed that the load-distributing band device (AutoPulse) was equivalent to manual chest compressions.

The trial compared the rates of survival to hospital discharge in out-of-hospital cardiac arrest of patients treated with the load-distributing band device compared to those receiving manual Cardiopulmonary resuscitation (CPR).

The trial was initiated in 2007 and enrolled approximately 4,000 patients, and was trial was governed by an independent DSMB.

Principal investigator of the trial Lars Wik said this is the first large-scale, randomised resuscitation trial to come to a successful conclusion with a statistically significant result.