| Recruiting | Ultra-High Frequency - Electrocardiogram (UHF-ECG) for the Diagnosis of Ventricular Electrical Dyssynchrony (V NCT06641362 | VDI Technologies | — |
| Recruiting | Flecainide in Idiopathic Premature Ventricular Contractions and Related Cardiomyopathy NCT06949748 | University of Athens | — |
| Unknown | Evaluation of Cardiac Biomarkers and Ventricular Function in Asthmatic Children NCT05985720 | Assiut University | — |
| Recruiting | ConTempoRary Cardiac Stimulation in Clinical practicE: lEft, BivEntriculAr, Right, and conDuction System Pacin NCT06324682 | University Hospital of Ferrara | — |
| Unknown | Effects of the Sodium-glucose Cotransporter 2 Inhibitors+Sacubitril/Valsartan Therapy in Patients With HFrEF. NCT05934071 | Fondazione Policlinico Universitario Agostino Gemelli IRCCS | — |
| Recruiting | Breast Cancer Long-term Outcomes on Cardiac Functioning: a Longitudinal Study NCT05851053 | University Medical Center Groningen | — |
| Recruiting | Pleiotropic Effects of Dapagliflozin in Patients With Acute Coronary Syndromes NCT06286878 | University of Sao Paulo | Phase 2 / Phase 3 |
| Completed | Low Ejection Fraction in Single Lead ECG- Ochsner NCT05010642 | Eko Devices, Inc. | — |
| Completed | Low Ejection Fraction in Single Lead ECG NCT05010655 | Eko Devices, Inc. | — |
| Recruiting | Registry to Assess the Safety and Feasibility of the Subpulmonary Support with the Novel Venous Cannula in Pat NCT04782232 | Berlin Heart GmbH | — |
| Completed | The Use of the EXCOR Active Driving Unit for Mobilization of Pediatric Patients With Ventricular Assist Device NCT04634708 | Berlin Heart GmbH | — |
| Recruiting | The PAtients pResenTing With COngenital HeaRt DIseAse Register (ARTORIA-R) NCT04848844 | Universitätsklinikum Hamburg-Eppendorf | — |
| Unknown | Impact of Ischemic Post-conditioning NCT04068116 | Assiut University | N/A |
| Completed | Focused Cardiac Ultrasound NCT03887286 | University of Miami | N/A |
| Completed | Acute Kidney Injury as a Risk Factor for Myocardial Injury and Ventricular Dysfunction NCT04768751 | South Egypt Cancer Institute | — |
| Unknown | Registry to Monitor Berlin Heart EXCOR® Pediatric VAD as a Bridge to Cardiac Transplantation. NCT03701997 | Berlin Heart, Inc | — |
| Completed | Safety and Efficacy of the Gastric Reactance (XL) in Patients Post-operated of Elective Cardiac Surgery NCT03799133 | Critical Perfusion Inc. | N/A |
| Completed | Non-Invasive and Invasive Assessment of Heart Filling Pressure NCT07512310 | University Hospital, Essen | — |
| Unknown | Biomarkers in Risk Stratification of Sustainted Ventricular Tachycardia or Electrical Storm After Ablation NCT02784912 | Medical University of Warsaw | — |
| Completed | Sleep Quality Underwent Heart Transplant, an Observational Study NCT03281525 | University of Padova | — |
| Completed | Optimising Screening for the Cardiotoxic Effects of Cancer Therapy NCT06817044 | Barts & The London NHS Trust | — |
| Terminated | Benefit of One Month Zopiclone Intake on Adaptative Servoventilation Compliance NCT02820441 | University Hospital, Grenoble | Phase 4 |
| Completed | HeartMate 3 ELEVATE™ Registry NCT02497950 | Abbott Medical Devices | — |
| Unknown | Comparison of Gated Blood-pool SPECT and Echocardiogram for Ventricular Function NCT02644850 | National Taiwan University Hospital | — |
| Completed | Safety & Efficacy of Intramyocardial Injection of Mesenchymal Precursor Cells on Myocardial Function in LVAD R NCT02362646 | Annetine Gelijns | Phase 2 |
| Completed | Trajectory Changes of Coronary Sinus Lead Tip and Cardiac Resynchronization Therapy Outcome NCT02340546 | Corrado Tomasi | — |
| Unknown | Austrian Wearable Cardioverter Defibrillator Registry NCT02816047 | Medical University of Graz | — |
| Completed | Cologne Register of Wearable Defibrillator (CRWD) NCT02073942 | University of Cologne | — |
| Recruiting | Using Cardiac MRI to Predict Outcomes in Patients With STEMI NCT07072858 | Chinese PLA General Hospital | — |
| Completed | Safety and Performance of Electrodes Implanted in the Left Ventricle NCT01905670 | EBR Systems, Inc. | N/A |
| Terminated | Impact of Septal Vs Apical Pacing on Right and Left Ventricular Performance NCT01798043 | Abbott Medical Devices | N/A |
| Completed | Hemodynamic Indices Predictive of a Beneficial Response to Fluid Expansion in Case of Hemodynamic Failure Afte NCT01673230 | Rennes University Hospital | N/A |
| Unknown | Safety and the Effects of Isolated Left Ventricular Pacing in Patients With Bradyarrhythmias NCT01717469 | University of Sao Paulo | Phase 4 |
| Terminated | The Use of CoSeal (Sealant Agent) in Patients During Left Ventricular Assist Device Surgery NCT01605019 | The Methodist Hospital Research Institute | N/A |
| Completed | The Effect of Intramyocardial Injection of Mesenchymal Precursor Cells on Myocardial Function in Patients Unde NCT01442129 | Deborah Ascheim | Phase 2 |
| Completed | Effect of Septal Versus Apical Pacing- a Comparative Study Using Cardiac MRI NCT01842243 | Manchester University NHS Foundation Trust | N/A |
| Completed | Study of the Wearable Defibrillator in Heart-Failure Patients NCT01326624 | Zoll Medical Corporation | — |
| Completed | Wireless Stimulation Endocardially for Cardiac Resynchronization Therapy NCT01294527 | EBR Systems, Inc. | N/A |
| Terminated | LifeVest Post-CABG Registry NCT01448005 | Zoll Medical Corporation | — |
| Completed | AutoLogous Human CArdiac-Derived Stem Cell to Treat Ischemic cArdiomyopathy (ALCADIA) NCT00981006 | Naofumi Takehara | Phase 1 |
| Completed | Safety and Clinical Performance of the Protecta ICD and CRT-D NCT00982397 | Medtronic Cardiac Rhythm and Heart Failure | N/A |
| Completed | CArdiosphere-Derived aUtologous Stem CElls to Reverse ventricUlar dySfunction NCT00893360 | Cedars-Sinai Medical Center | Phase 1 |
| Completed | Vest Prevention of Early Sudden Death Trial and VEST Registry NCT01446965 | University of California, San Francisco | N/A |
| Completed | ConsultaTM CRT-D Clinical Evaluation Study NCT00526162 | Medtronic Cardiac Rhythm and Heart Failure | N/A |
| Terminated | Standard Drug Therapy vs. Implanted Defibrillator for Primary Prevention of Sudden Cardiac Death NCT00524862 | Unity Health Toronto | N/A |
| Withdrawn | N-Terminal Pro-B-Type Natriuretic Peptide and Troponin Levels as Markers of Hemodynamic Stability in Very Low NCT00425581 | Sheba Medical Center | — |
| Terminated | An Exploratory Sub-study for the RED-HF™ (Reduction of Events With Darbepoetin Alfa in Heart Failure) Trial NCT00534456 | Amgen | Phase 3 |
| Completed | RED-HF™ Trial - Reduction of Events With Darbepoetin Alfa in Heart Failure Trial NCT00358215 | Amgen | Phase 3 |
| Completed | Peripheral Artery Disease in Vastmanland NCT01452165 | Uppsala University | — |
| Terminated | Measuring Electrical Resistance of Different Tissues on the Outer Surface of the Heart NCT00291174 | University of Pennsylvania | — |
| Completed | Autologous Bone Marrow Transplanted Via Transendocardial Catheter to Chronic Myocardial Infarct Border Zone NCT00507468 | BioCardia, Inc. | Phase 1 |
| Terminated | OMNI Study--Assessing Therapies in Medtronic Pacemaker, Defibrillator, and Cardiac Resynchronization Therapy D NCT00277524 | Medtronic Cardiac Rhythm and Heart Failure | — |
| Completed | Thoratec HeartMate II Left Ventricular Assist System (LVAS) for Bridge to Cardiac Transplantation NCT00121472 | Abbott Medical Devices | N/A |
| Completed | Thoratec HeartMate II Left Ventricular Assist System (LVAS) for Destination Therapy NCT00121485 | Abbott Medical Devices | N/A |
| Completed | B-Left HF: Biventricular Versus Left Univentricular Pacing With Implantable Cardiac Defibrillator (ICD) Back-U NCT00187213 | Abbott Medical Devices | N/A |
| Withdrawn | Effects of Nesiritide in Pediatric Patients With Heart Failure NCT00166010 | Emory University | N/A |
| Terminated | DIAFAX I+II-Effects of Inhalative Anesthetics on Left Ventricular Diastolic Function NCT00244517 | University Hospital, Basel, Switzerland | Phase 4 |
| Withdrawn | Clonidine and Left Ventricular Dysfunction NCT00213902 | University Hospital, Strasbourg, France | — |
| Completed | Mascot Study: Management of Atrial Fibrillation (AF) Suppression in AF-Heart Failure (HF) COmorbidity Therapy NCT00187252 | Abbott Medical Devices | N/A |
| Completed | Biopace Study: Biventricular Pacing for Atrioventricular Block to Prevent Cardiac Desynchronization NCT00187278 | Abbott Medical Devices | N/A |
| Completed | Insulin Effects on Cardiac Function in Patients With Diabetes Mellitus NCT02962921 | Rambam Health Care Campus | Phase 4 |
| Completed | SAVEPACe - Search AV Extension and Managed Ventricular Pacing for Promoting Atrio-Ventricular Conduction NCT00284830 | Medtronic Cardiac Rhythm and Heart Failure | N/A |
| Completed | Glucose Control in Open Heart Surgery NCT00370643 | University of Sao Paulo | Phase 1 |