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Out-of-Hospital Cardiac Arrest

Part of Cardiac Arrest

6 published articles · Updated continuously

Clinical Trial Landscape

Clinical Trials for Out-of-Hospital Cardiac Arrest

11 trials tracked for Out-of-Hospital Cardiac Arrest: 3 in phase 3 or 4 and 2 with published results. The most-cited published study has 305 citations.

11Trials tracked
3Phase 3 & 4
0Recruiting
2With published results
Phase distribution
Phase 4 1 Phase 3 2 Phase 1 1 Other / NA 7
  1. Phase 4 Continuous Chest Compressions vs AHA Standard CPR of 30:2 Completed · 305 cited
  2. Phase 3 Clinical Trial of Sodium Nitrite for Out of Hospital Cardiac Arrest Completed · 26 cited
  3. Phase 3 Induction of Mild Hypothermia Following Out-of-hospital Cardiac Arrest Completed
  4. Phase 1 Dose-Finding Study of Intranasal Insulin in Healthy Participants Insulin in Healthy Participants Completed
  5. N/A Serious Game Versus Online Course to Pre-train Medical Students on the Management of an Adult Cardiac Arrest. Completed
  6. N/A Dispatcher-Activated Neighborhood Access Defibrillation and Cardiopulmonary Resuscitation Completed
Show 5 more trials
  1. N/A Effects of a New Dispatcher-Assisted Basic Life Support Training Program Completed
  2. N/A Pre-arrival Instructions Effect on Bystander Cardiopulmonary Resuscitation (CPR). Completed
  3. N/A A Pilot Study of Intra-arrest Therapeutic Hypothermia in Patients Suffering Non-Traumatic Out of Hospital Cardiac Arrest Completed
  4. N/A Pre-hospital ECMO in Advanced Resuscitation in Patients With Refractory Cardiac Arrest. ( SUB30 ) Completed
  5. N/A CPR Quality Between Flexible Stretcher and Standard Stretcher in OHCA Completed

Showing the 11 most-cited and recently-updated of 11 trials. Browse the full registry →

Trial data sourced from ClinicalTrials.gov. Counts describe the research landscape and are not a treatment recommendation. Informational only — not medical advice.

What the trials found Updated — new results For clinicians

Out-of-Hospital Cardiac Arrest: what the trials found

Standard CPR is established in the management of out-of-hospital cardiac arrest, with data indicating that 7.0% to 7.7% of participants scored at or below a 3 on the MRS Scale 3.

Placebo interventions were evaluated for survival outcomes; however, no statistically significant differences were found regarding survival to hospital admission (p=0.82), survival to discharge (p=0.44), or number of days in the ICU (p=0.12) 4.

Recent results — preliminary, needs further review

  • Intranasal insulin was evaluated at three different dosages (100, 200, and 400 Units), resulting in various blood glucose levels across study visits 1.
  • Pre-arrival instructions were tested for impact on bystander CPR incidence, but no significant difference was observed (p=0.41) 2.
  • ECMO resuscitation was evaluated regarding clinical outcomes via the MRS scale at 3 months in a small cohort 6.

For the clinician treating this condition

  • Standard CPR is a primary established intervention, with low rates of poor neurological outcomes observed 3.
  • Placebo trials indicate that specific interventions compared against placebo did not significantly alter survival to admission or discharge 4.

AI synthesis of 5 cited trials, updated Jun 29, 2026. Informational only — not medical advice; trial data sourced from ClinicalTrials.gov. How we use AI.

HCP Mode — summaries include clinical detail, trial data, and statistical outcomes.
Patient Mode — summaries use plain language, avoiding clinical jargon.

Research across Cardiac Arrest

Related studies from across the Cardiac Arrest family.

PEEP Valve in Bag-Valve-Mask CPR for Cardiac Arrest Outcomes
Emergency Medicine RCT
PEEP Valve in Bag-Valve-Mask CPR for Cardiac Arrest Outcomes New trial plans to test airway pressure during cardiac arrest
This protocol outlines a trial testing whether a PEEP valve during bag-valve-mask ventilation improves neurological outcomes in out-of-hospi…
A large new trial will test if using a special valve during CPR helps patients with heart attacks have better neurological outcomes.
Manual pressure augmentation did not improve survival to hospital discharge in shockable OHCA
Emergency Medicine RCT
Manual pressure augmentation did not improve survival to hospital discharge in shockable OHCA Manual pressure during defibrillation does not improve cardiac arrest survival
This cluster-randomized controlled trial of 560 adults with out-of-hospital cardiac arrest and a shockable rhythm found that manual pressure…
A trial involving 560 patients found that adding manual pressure during shocks did not improve survival rates for those in cardiac arrest.
Standard cardiopulmonary resuscitation improves survival rates in patients with out-of-hospital cardiac arrest
Emergency Medicine Meta-analysis
Standard cardiopulmonary resuscitation improves survival rates in patients with out-of-hospital cardiac arrest Standard CPR May Improve Survival After Out-of-Hospital Cardiac Arrest
This meta-analysis compared standard cardiopulmonary resuscitation to chest compression-only techniques for patients experiencing out-of-hos…
New data suggests that standard cardiopulmonary resuscitation may improve survival rates for people experiencing a cardiac arrest outside of…
Frailty is associated with higher mortality and poorer neurological outcomes in patients with cardiac arrest
Emergency Medicine Meta-analysis
Frailty is associated with higher mortality and poorer neurological outcomes in patients with cardiac arrest Frailty Linked to Higher Mortality Risk in Cardiac Arrest Patients
This meta-analysis of 12 studies analyzed the impact of frailty on outcomes for adult patients experiencing cardiac arrest. The analysis fou…
Patients with cardiac arrest who are also identified as frail face significantly higher risks of death and poorer neurological outcomes.
Palliative care consultation increases do-not-resuscitate orders and decreases healthcare utilization in cardiac arrest and cardiogenic shock patients
Cardiology Sys. Review
Palliative care consultation increases do-not-resuscitate orders and decreases healthcare utilization in cardiac arrest and cardiogenic shock patients Palliative care linked to better choices for cardiac arrest patients
This narrative review examines palliative care for patients with cardiac arrest and cardiogenic shock and their caregivers. The authors repo…
A review suggests palliative care helps patients with cardiac arrest make decisions about life-sustaining treatments and lowers healthcare c…
Immunomodulatory therapies showed no mortality benefit or neurological harm in 2605 adults after cardiac arrest
Emergency Medicine Meta-analysis
Immunomodulatory therapies showed no mortality benefit or neurological harm in 2605 adults after cardiac arrest New drug review shows no benefit for heart attack survivors
This systematic review and meta-analysis evaluated immunomodulatory therapeutics in adults following in- and out-of-hospital cardiac arrest.…
A large review of immune drugs found no clear benefit for heart attack survivors and did not lower death rates within 30 days.
Mini review examines sudden cardiac death risks in marathon runners across different age groups
Cardiology Sys. Review
Mini review examines sudden cardiac death risks in marathon runners across different age groups Marathon running links to higher heart risk in older men and full-distance participants
This mini review synthesizes evidence on sudden cardiac death (SCD) and coronary artery disease in marathon runners. The authors note that r…
A review of marathon runners shows heart risks vary by age, sex, and race distance, with most events happening near the finish.
Family history, prior arrhythmia, and anterior infarct location independently raise risk of ventricular fibrillation in STEMI patients
Cardiology Meta-analysis
Family history, prior arrhythmia, and anterior infarct location independently raise risk of ventricular fibrillation in STEMI patients Family history and heart attack location raise risk of dangerous heart rhythms in young patients
This meta-analysis of 1807 cases and 2923 controls confirms that family history of sudden death, previous atrial fibrillation, and anterior …
A large study found that family history of sudden death, past atrial fibrillation, and front heart attacks increase the chance of dangerous …
Hands-free carotid ultrasound improves ROSC detection in cardiac arrest
Emergency Medicine RCT
Hands-free carotid ultrasound improves ROSC detection in cardiac arrest Hands-free ultrasound speeds up heart restart checks for cardiac arrest patients
This randomized controlled trial of 341 adults with in-hospital cardiac arrest found that hands-free carotid ultrasound (CADFlow) led to a…
A new trial shows hands-free ultrasound devices help medical teams detect heart restart success faster and more accurately during cardiac ar…
Narrative review covers cardiovascular conditions and cognitive decline without reported trial data
Cardiology Sys. Review
Narrative review covers cardiovascular conditions and cognitive decline without reported trial data Your Heart and Brain Are Talking to Each Other
This narrative review addresses a broad scope of cardiovascular conditions, including stroke, heart failure, atrial fibrillation, and ischem…
Imagine your heart and brain as two best friends who never stop texting each other.
FirstCPR cluster randomised trial process evaluation finds leadership and champions drive community BLS uptake
Emergency Medicine RCT
FirstCPR cluster randomised trial process evaluation finds leadership and champions drive community BLS uptake Community groups in Australia showed high engagement with new life support training programs
A multimethod process evaluation of the FirstCPR cluster randomised trial examined delivery, reach, uptake and engagement of multimodal basi…
Social and faith-based groups in Australia successfully adopted new life support training, with 90% engaging in activities while only 18% co…
Plasma proteins linked to HCM severity identified in MYBPC3 carriers and UK Biobank
Cardiology
Plasma proteins linked to HCM severity identified in MYBPC3 carriers and UK Biobank Could blood proteins predict dangerous heart conditions like sudden cardiac arrest in people with specific gene mutations?
This observational study examined 144 MYBPC3 pathogenic variant carriers and 6,492 UK Biobank participants to identify plasma proteins assoc…
Blood proteins linked to heart failure and sudden cardiac arrest appear in people with specific gene mutations, offering new warning signs f…