Clinical trial Recruiting at 1 site Interventional Ages 8 and up

Improving survival rates for cardiac arrest in residential areas with mobile responders

Official title: A Cluster Randomized Clinical Trial of Strategic AED Deployment in High-risk Residential Areas Combined With Activation of Local Residents

Run by Emergency Medical Services, Capital Region, Denmark · NCT04446585 · Data updated 2026-11-12

This study is testing whether training local residents to use defibrillators and increasing their availability can help save more lives after cardiac arrests in neighborhoods.

More Out-Of-Hospital Cardiac Arrest trials

Quick facts

Study typeInterventional
Ages8 Years and up
SexAll
Enrollment260 (estimated)
SponsorEmergency Medical Services, Capital Region, Denmark
Government
Locations1 site (Ballerup Municipality, The Capital Region)
StatusRecruiting
StartedDecember 1, 2021
Main results expectedJanuary 2027
Study endsJanuary 2027
Registry record updatedSeptember 15, 2023
Trial IDNCT04446585 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are individuals who experience a witnessed, non-traumatic cardiac arrest in the designated residential areas.

Probably not a fit

Patients who experience cardiac arrests in nursing homes or those not treated by emergency medical services will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study focuses on enhancing bystander defibrillation rates during out-of-hospital cardiac arrests in residential areas with high incidence. The intervention involves deploying Automated External Defibrillators (AEDs) and training local residents to act as citizen responders. By increasing community involvement and access to AEDs, the study aims to improve the rates of defibrillation and survival within 30 days following a cardiac arrest. The initiative targets densely populated areas to maximize impact and effectiveness.

Why it matters

Potential benefit: If successful, this approach could significantly increase survival rates for individuals experiencing cardiac arrest in residential settings.

How similar studies have gone: Other studies have shown promising results in increasing survival rates through community-based interventions and training, indicating that this approach has potential for success.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* All witnessed cardiac arrests recognized registered in the Danish Cardiac Arrest Registry occurring within the study sites. This excludes non witnessed cardiac arrests.
* Witnessed cardiac arrest
* Non-traumatic etiology, this excludes intoxication, drowning or suicide.

Exclusion Criteria:

* Cardiac arrest occurring in a nursing home
* Cardiac arrest not treated by the EMS due to ethical reasons or obvious signs of death
* Not true cardiac arrest (suspected, but not verified)
* Cardiac arrests witnessed by the emergency medical personnel

Where it's running

  • Emergency Medical Services Copenhagen
    Ballerup Municipality, The Capital Region, Denmark
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.