Out-of-hospital cardiac arrest Clinical Trials

33 recruitingLast updated: June 18, 2026

There are 33 actively recruiting out-of-hospital cardiac arrest clinical trials across 27 countries. Studies span Not Applicable, Phase 3, Phase 2. Top locations include Taipei, Taiwan, Stockholm, Sweden, Kuopio, Finland. Updated daily from ClinicalTrials.gov.


Out-of-hospital cardiac arrest Trials at a Glance

33 actively recruiting trials for out-of-hospital cardiac arrest are listed on ClinicalTrialsFinder across 6 cities in 27 countries. The largest study group is Not Applicable with 18 trials, with the heaviest enrollment activity in Taipei, Stockholm, and Kuopio. Lead sponsors running out-of-hospital cardiac arrest studies include National Taiwan University Hospital, Karolinska Institutet, and Emergency Medical Services, Capital Region, Denmark.

Browse out-of-hospital cardiac arrest trials by phase

Treatments under study

About Out-of-hospital cardiac arrest Clinical Trials

Looking for clinical trials for Out-of-hospital cardiac arrest? There are currently 36 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Out-of-hospital cardiac arrest trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Out-of-hospital cardiac arrest clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 120 of 33 trials

Recruiting
Not Applicable

Neuroprotective Effect of Remote Ischemic Post-conditioning in Out-of-hospital Cardiac Arrest

Out-of-hospital cardiac arrest
Centre Hospitalier Intercommunal de Toulon La Seyne sur Mer48 enrolled1 locationNCT06473207
Recruiting
Not Applicable

Effects of Sedation, TEmperature and Pressure After Cardiac Arrest and REsuscitation on Major Adverse Kidney Events (STEPCARE-MAKE)

TemperatureBlood PressureCardiac Arrest (CA)+9 more
Helsinki University Central Hospital3,500 enrolled52 locationsNCT07579390
Recruiting
Not Applicable

Compression Only CPR Versus Standard CPR in Out-Of-Hospital Cardiac Arrest - A Randomized Survival Study

Cardiopulmonary ResuscitationCardiac ArrestOut-of-hospital cardiac arrest
Karolinska Institutet3,260 enrolled2 locationsNCT03981107
Recruiting
Not Applicable

PRE-hospital Cooling to improvE carDiac arrEst Neurological outComEs (PRECEDENCE)

Cardiopulmonary ResuscitationDeath, Sudden, CardiacOut-of-hospital cardiac arrest+1 more
Singapore General Hospital50 enrolled1 locationNCT07421882
Recruiting
Not Applicable

Enhanced Community First Responder System Evaluation in Singapore

Out-of-hospital cardiac arrest
Singapore General Hospital165 enrolled1 locationNCT06530433
Recruiting
Not Applicable

Emergency Resuscitative Endovascular Balloon Occlusion of the Aorta in Out of Hospital Cardiac Arrest

Cardiac ArrestVentricular ArrythmiaVentricular Fibrillation+3 more
Queen Mary University of London40 enrolled1 locationNCT06071910
Recruiting

The Validation and Development of Termination-of-Resuscitation (TOR) Rules in OHCA Patients in Asia Countries

Out-of-hospital cardiac arrest
National Taiwan University Hospital140,000 enrolled1 locationNCT05545176
Recruiting

Drone Delivery of Automated External Defibrillators to Lay Users (DAEDALUS): A Proof of Concept Study

Out-of-hospital cardiac arrest
University of Surrey36 enrolled1 locationNCT07430813
Recruiting
Phase 2Phase 3

Early Double Sequential Defibrillation in Out of Hospital Cardiac Arrest

sudden deathVentricular FibrillationOut-of-hospital cardiac arrest+3 more
Gabriel Riva916 enrolled14 locationsNCT07174986
Recruiting

German Cardiac Arrest Registry

Out-of-hospital cardiac arrest
Leipzig Heart Science gGmbH400 enrolled25 locationsNCT05142124
Recruiting
Not Applicable

The Effect of Prehospital Combination of Epinephrine, Vasopressin, and Steroid in OHCA

Cardiac ArrestOut-of-hospital cardiac arrestEmergency Medical Services
National Taiwan University Hospital1,344 enrolled1 locationNCT06203847
Recruiting
Not Applicable

Prehospital Resuscitation Intranasal Cooling Effectiveness Survival Study 2

HypothermiaVentricular FibrillationOut-of-hospital cardiac arrest
Karolinska Institutet1,022 enrolled11 locationsNCT06025123
Recruiting

The Development of the Simulation Curriculum and AI-incorporated Assessment Tool for Transesophageal Echocardiography

Out-of-hospital cardiac arrest
National Taiwan University Hospital100 enrolled1 locationNCT06567912
Recruiting

Refractory Cardiac Arrest Treated On Field By ECMO

Out-of-hospital cardiac arrestExtracorporeal Cardiopulmonary Resuscitation
Assistance Publique - Hôpitaux de Paris840 enrolled1 locationNCT06397417
Recruiting

Technological and Patient-tailored Innovations for Maximizing Effectiveness of Cardiac Arrest Resuscitation

Cardiac ArrestOut-of-hospital cardiac arrest
Università Vita-Salute San Raffaele500 enrolled3 locationsNCT06538155
Recruiting
Not Applicable

Initial Double Sequential External Defibrillation in Out of Hospital Cardiac Arrest

Cardiac ArrestVentricular FibrillationOut-of-hospital cardiac arrest
St. Olavs Hospital356 enrolled1 locationNCT06672159
Recruiting
Not Applicable

Impact of Early Antibiotics on Non-Traumatic Out of Hospital Cardiac Arrest (OHCA)

Infection, BacterialOut-of-hospital cardiac arrest
Hamad Medical Corporation1,000 enrolled1 locationNCT05914779
Recruiting

Wroclaw Out-Of-Hospital Cardiac Arrest Registry

Out-of-hospital cardiac arrest
Wroclaw Medical University50 enrolled1 locationNCT05132387
Recruiting

NFL Dynamics as a Predictor Factor in Patients With Out of Hospital Cardiac Arrest

Neurological injuryOut-of-hospital cardiac arrest
University Medical Centre Maribor60 enrolled1 locationNCT05218278
Recruiting
Phase 2Phase 3

POHCA Resuscitation: Evaluation of IM Epinephrine

Pediatric Out-of-Hospital Cardiac Arrest
London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's284 enrolled1 locationNCT05166343