HeartRunner
Public Access Defibrillation by Activated Volunteer Citizen Responders — the HeartRunner Trial
Patient / Population Intervention / Exposure Comparison Outcome
In 2,114 out-of-hospital cardiac arrests, smartphone activation of citizen responders was compared with standard EMS response on survival at 30 days.
N
2,114
Design
Investigator-initiated, dispatcher- and investigator-blinded, 1:1 randomised superiority trial in the Capital Region of Denmark (May 2019 – March 2026); unit of randomisation is the dispatcher-identified suspected-OHCA alarm, randomised automatically on the HeartRunner server by permuted blocks within three strata of predicted citizen-responder arrival time (<3 min, 3–9 min, >9 min; powered for strata 1 and 2 at 80%); intention-to-treat; 30-day vital status from the Danish Civil Registry; Bayesian analysis pre-specified as supplementary
Endpoint
30-day survival