Clinical trial Recruiting at 2 sites Interventional Ages 18 and up

Comparing defibrillation techniques for out-of-hospital cardiac arrest

Official title: Strategies for Defibrillation During Out-of-Hospital Cardiac Arrest - A Randomized Clinical Trial

Run by Aarhus University Hospital · NCT06781892 · Data updated 2026-11-12

This study tests different ways to use defibrillators on adults who have a cardiac arrest outside of the hospital to see which method works best to restart their hearts.

More Cardiac Arrest (CA) trials

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment909 (estimated)
SponsorAarhus University Hospital
Academic / other
Locations6 sites (Aalborg and 5 other locations)
StatusRecruiting
StartedMarch 15, 2025
Main results expectedMarch 1, 2028
Study endsMarch 1, 2029
Registry record updatedMay 23, 2025
Trial IDNCT06781892 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older who have experienced an out-of-hospital cardiac arrest with a shockable rhythm.

Probably not a fit

Patients with cardiac arrest due to trauma or those for whom posterior pad placement is not feasible may 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

The STRAT-DEFI trial investigates different defibrillation strategies for adults experiencing out-of-hospital cardiac arrest. It compares standard anterior-lateral pad positioning with anterior-posterior positioning and double-sequential defibrillation. Participants are randomly assigned to one of three groups to evaluate the effectiveness of these techniques in restoring normal heart rhythm. The trial aims to determine which method yields the best outcomes for patients in critical situations.

Why it matters

Potential benefit: If successful, this study could improve survival rates and outcomes for patients experiencing out-of-hospital cardiac arrest.

How similar studies have gone: While there have been studies on defibrillation techniques, this specific comparison of double-sequential defibrillation is relatively novel and has not been extensively tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Out-of-hospital cardiac arrest
2. Age ≥ 18 years
3. ≥ 1 manual defibrillation attempt by emergency medical services
4. Shockable rhythm as the last known rhythm
5. Two manual defibrillators present on-site

Exclusion Criteria:

1. Blunt trauma, penetrating trauma, or burn injury suspected to be the cause of the cardiac arrest
2. Prior enrollment in the trial
3. Posterior pad placement not deemed possible by on-site clinician

Where it's running

  • Emergency Medical Services, the North Denmark Region
    Aalborg, Denmark
    Recruiting
  • Prehospital Emergency Medical Services, Central Denmark Region
    Aarhus N, Denmark
    Recruiting
  • Danish Air Ambulance, Danish Regions
    Aarhus N, Denmark
    Not yet recruiting
  • Copenhagen Emergency Medical Services, the Capital Region of Denmark
    Ballerup Municipality, Denmark
    Not yet recruiting
  • The Prehospital Center, Region Zealand
    Næstved, Denmark
    Not yet recruiting
  • Emergency Medical Services, the Region of Southern Denmark
    Vejle, Denmark
    Not yet 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.