Evaluating IM Epinephrine for Pediatric Cardiac Arrest

Pediatric Out-of-Hospital Cardiac Arrest Resuscitation: Evaluation of IM Epinephrine (The PRIME Trial)

Phase2; Phase3 Interventional London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's · NCT05166343

This study is testing if giving epinephrine through a shot in the muscle can help children who have a cardiac arrest outside of the hospital recover faster and have better outcomes compared to the usual methods.

Quick facts

PhasePhase2; Phase3
Study typeInterventional
Enrollment284 (estimated)
Ages1 Day to 17 Years
SexAll
SponsorLondon Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's Academic / other
Locations1 site (London, Ontario)
Trial IDNCT05166343 on ClinicalTrials.gov

What this trial studies

This trial evaluates the use of intramuscular (IM) epinephrine in children experiencing out-of-hospital cardiac arrest (POHCA) through a pragmatic, two-arm, open-label design. It aims to determine if IM administration can provide a quicker and safer initial dose of epinephrine compared to traditional intravenous or intraosseous methods. The study will assess the impact of IM epinephrine on the time to return of spontaneous circulation (ROSC) and overall patient outcomes. This is the first trial to investigate the use of IM epinephrine specifically in the context of pediatric cardiac arrest.

Who should consider this trial

Good fit: Ideal candidates are children aged 1 day to 17 years who are experiencing an out-of-hospital cardiac arrest and have received CPR from trained responders.

Not a fit: Patients who have suffered cardiac arrest due to obvious traumatic events will not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could lead to improved survival rates and outcomes for children experiencing cardiac arrest outside of a hospital setting.

How similar studies have performed: While there is extensive literature on IM epinephrine use in other contexts, this specific application in pediatric cardiac arrest is novel and has not been previously tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Children aged 1 day to and including 17 years experiencing an out-of-hospital cardiac arrest (OHCA)
* Must be receiving at least 1 minute of CPR by trained first responders (police, fire, or paramedic services)

Exclusion Criteria:

\- Children who experience OHCA due to an obvious traumatic event.

Where this trial is running

London, Ontario

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Pediatric Out-of-Hospital Cardiac Arrestcardiac arrestIM Epinephrinestandard of carepediatricresuscitation
Last reviewed 2026-06-09 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.