Can a gut hormone protect the brain after cardiac arrest? (GRECO trial)

Ghrelin's intriguing phase 2 results need confirmation in larger phase 3 trials

Preproghrelin (green and blue) and ghrelin (green). Source: Wikipedia

Thanks to advances in critical care in recent decades, many more patients today survive out-of-hospital cardiac arrest to hospital discharge. Unfortunately, neurologic outcomes have remained poor over that time, with most survivors of out-of-hospital cardiac arrest remaining severely d…