| Not Yet Recruiting | AI-guided Prediction and Treatment of Cardiac Arrest NCT07452016 | MetroHealth Medical Center | N/A |
| Not Yet Recruiting | Developing and Testing Drone-Delivered AEDs for Cardiac Arrests In Rural America NCT06229418 | Duke University | N/A |
| Enrolling By Invitation | Research on Attitudes, Confidence, and Practical Skills in Performing Cardiopulmonary Resuscitation and Automa NCT07331831 | First Three Minutes Foundation | — |
| Not Yet Recruiting | Using Heart Electrical Signals to Study How Well Treatments Prevent Dangerous Heart Rhythms in Active People NCT07014579 | University of Leicester | — |
| Completed | Use of Lactate-to-Albumin, CRP-to-Albumin, and Procalcitonin-to-Albumin Ratios to Predict Mortality in ICU Pat NCT07242027 | Medical University of Silesia | — |
| Not Yet Recruiting | The OSIRIS ECPR Trial NCT06805344 | General University Hospital, Prague | N/A |
| Recruiting | Tampere Coronary Artery Disease and Sudden Cardiac Arrest Study NCT06804499 | Tampere Heart Hospital | — |
| Recruiting | Validation of Sudden Cardiac Arrest Risk Factors in Patients With CAD NCT07444931 | Tampere Heart Hospital | — |
| Active Not Recruiting | The Study Aims to Investigate the Frequency and Clinical Characteristics of Out-of-hospital Cardiac Arrests (O NCT06948266 | Medical University of Gdansk | — |
| Recruiting | Sudden Cardiac Arrest Related to Sport in Young and Value of the Genetic Assessment: a French Prospective Regi NCT06642168 | Rennes University Hospital | — |
| Completed | Early Double Sequential Defibrillation in Out-of-hospital Cardiac Arrest NCT06447805 | Karolinska Institutet | N/A |
| Completed | Tempus Pro Monitor Registry NCT05587764 | Philips Clinical & Medical Affairs Global | — |
| Unknown | Low QRS Voltages in Young Healthy Individuals and Athletes NCT05799833 | Imperial College London | — |
| Recruiting | Epinephrine Dose: Optimal Versus Standard Evaluation Trial NCT03826524 | Unity Health Toronto | Phase 4 |
| Active Not Recruiting | Assessment of Combined CCM and ICD Device in HFrEF NCT05855135 | Impulse Dynamics | N/A |
| Completed | The Intrepid Clinical Engineering Study NCT05636332 | Philips Clinical & Medical Affairs Global | N/A |
| Completed | Symptoms and Coping Strategies Among Patients With Implantable Cardioverter Defibrillator NCT07121855 | TC Erciyes University | — |
| Completed | The Jewel IDE Study NCT05201495 | Element Science, Inc. | N/A |
| Recruiting | ASSURE WCD Clinical Evaluation - Post Approval Study (ACE-PAS) NCT05135403 | Kestra Medical Technologies, Inc. | — |
| Recruiting | HS Students Mandatory Universal Student Instruction in CPR Appraised Learning- Is the Mandate Working? NCT04493970 | Kansas City Heart Rhythm Research Foundation | — |
| Recruiting | HeartStart HS1 Defibrillator* Event Registry NCT04840797 | Philips Clinical & Medical Affairs Global | — |
| Unknown | Better Mechanistic Understanding of and Risk Stratification for Ventricular Tachyarrhythmias Through ECGI NCT04548804 | Maastricht University Medical Center | N/A |
| Recruiting | HeartStart FRx Defibrillator Event Registry NCT04250857 | Philips Clinical & Medical Affairs Global | — |
| Enrolling By Invitation | Hearts in Rhythm Organization (HiRO)National Registry and Bio Bank NCT04189822 | University of British Columbia | — |
| Completed | Canadian Sudden Cardiac Arrest Network NCT03642587 | Unity Health Toronto | — |
| Completed | Jewel Electrophysiology (EP) Lab Study NCT05490459 | Element Science, Inc. | N/A |
| Completed | Improve SCA Bridge Study NCT03715790 | Medtronic Cardiac Rhythm and Heart Failure | — |
| Active Not Recruiting | Prediction of ARrhythmic Events With Positron Emission Tomography II NCT03493516 | State University of New York at Buffalo | — |
| Recruiting | Mayo AVC Registry and Biobank NCT03049254 | Mayo Clinic | — |
| Completed | ECPR for Refractory Out-Of-Hospital Cardiac Arrest NCT03065647 | University of Michigan | N/A |
| Completed | Heart Failure Optimization Study NCT03016754 | Zoll Medical Corporation | — |
| Terminated | Wearable Cardioverter Defibrillator in Hemodialysis Patients (WED-HED) Study NCT02481206 | Zoll Medical Corporation | N/A |
| Completed | Impact of an Intensive Care Diary on Post-traumatic Stress Disorder After a Resuscitated Sudden Death NCT02874469 | University Hospital, Lille | N/A |
| Terminated | EEG in Resuscitated In-hospital Patients NCT02349087 | Kuopio University Hospital | — |
| Unknown | Austrian Wearable Cardioverter Defibrillator Registry NCT02816047 | Medical University of Graz | — |
| Completed | Improve Sudden Cardiac Arrest Study NCT02099721 | Medtronic Cardiac Rhythm and Heart Failure | N/A |
| Completed | Feasibility Study of Remote Support for Implantable Pulse Generator (IPG)/Implantable Cardioverter Defibrillat NCT01809652 | Medtronic Cardiac Rhythm and Heart Failure | N/A |
| Unknown | A Feasibility Study on Prediction of an ICD Shock by ICD-derived Data NCT01822145 | Princess Margaret Hospital, Hong Kong | — |
| Unknown | LUCAS Chest Compressor Versus Manual Chest Compression in Out-of-hospital Sudden Cardiac Arrest. LUCAT Trial NCT01521208 | Sistema d'Emergències Mèdiques | Phase 3 |
| Unknown | Sodium Bicarbonate in Cardiopulmonary Resuscitation NCT01377337 | Rambam Health Care Campus | Phase 4 |
| Completed | Study of the Wearable Defibrillator in Heart-Failure Patients NCT01326624 | Zoll Medical Corporation | — |
| Completed | Coenzyme Q10 in Post-Cardiac Arrest Cerebral Resuscitation NCT01319110 | Beth Israel Deaconess Medical Center | Phase 2 |
| Completed | Educational Videos to Improve Patient Decision Making and Race Disparities in Implantable Cardioverter Defibri NCT00918125 | Duke University | — |
| Completed | Effects of Stearidonic Acid-Containing Foods on Eicosapentaenoic Acid Levels in Red Blood Cells and Omega-3 In NCT01749202 | Solae, LLC | N/A |
| Completed | Time and Dose Evaluation of Stearidonic Acid (SDA) to Eicosapentaenoic Acid (EPA) in Red Blood Cells NCT01038440 | Solae, LLC | N/A |
| Completed | Nurses Helping Sudden Cardiac Arrest Survivors Recover After Getting An Implantable Cardioverter Defibrillator NCT00226681 | National Institute of Nursing Research (NINR) | Phase 1 |