| Recruiting | Left Bundle Branch Pacing vs Right Ventricular Pacing on AHRE Burden in Patients With Preserved LVEF NCT07250529 | University Hospital of Patras | N/A |
| Not Yet Recruiting | RandomIsed sTudy of Physiologic cArdiac stimuLation in patIents With Atrio-ventricular Conduction Disease NCT07279870 | IRCCS Azienda Ospedaliero-Universitaria di Bologna | N/A |
| Recruiting | Safety, Performance, and Clinical Benefit of Pacing the Left Bundle Branch Area - Post-Market Clinical Follow- NCT07209852 | Boston Scientific Corporation | — |
| Not Yet Recruiting | PACE-AF: Prospective Analysis of Cardiac Electrostimulation and Atrial Fibrillation NCT07279207 | Ilya Lukin | — |
| Recruiting | Central Haemodynamics and Pacing for AV Block NCT07276490 | University of Tartu | N/A |
| Recruiting | Trial Evaluating the Benefit of Left Bundle Branch Area Stimulation Compared With Conventional Pacing in Post- NCT07236489 | Nantes University Hospital | N/A |
| Active Not Recruiting | BIOTRONIK Conduction System Pacing With the Solia Lead - Solia CSP S NCT06540079 | Biotronik, Inc. | N/A |
| Not Yet Recruiting | Factors Affecting Selection of Leadless Pacemaker and Atrioventricular Synchronous Pacing Status NCT06587672 | Xiaohan Fan | — |
| Recruiting | Left Bundle Branch Area Pacing Versus Right Ventricular Pacing in Atrioventricular Block With Preserved Ejecti NCT07464041 | Samsung Medical Center | N/A |
| Recruiting | Remote ECG Monitoring Post TAVI NCT07521800 | Medical University of Silesia | N/A |
| Not Yet Recruiting | The Impact of LBBAP vs RVP on the Incidence of New-onset Atrial Fibrillation in Patients With Atrioventricular NCT06023784 | Peking Union Medical College Hospital | N/A |
| Recruiting | Pacemaker Implantation Versus Cardioneuroablation for Functional Atrioventricular Block NCT05774262 | American Heart of Poland | N/A |
| Recruiting | ConTempoRary Cardiac Stimulation in Clinical practicE: lEft, BivEntriculAr, Right, and conDuction System Pacin NCT06324682 | University Hospital of Ferrara | — |
| Completed | BIOTRONIK Conduction System Pacing With the Solia Lead NCT05251363 | Biotronik, Inc. | N/A |
| Recruiting | PReventive Effect Of Left Bundle Branch Area Pacing Versus righT vEntricular paCing on All Cause deaTh, Heart NCT05585411 | Yonsei University | N/A |
| Unknown | Pulmonary Artery Pressure and Right Heart Evaluation for Patients Requiring Physiological Pacing Treatment NCT05575557 | Shanghai 10th People's Hospital | N/A |
| Enrolling By Invitation | Taiwan Registry for Leadless Pacemaker NCT04926792 | National Taiwan University Hospital | — |
| Completed | enHEART - Exploring Full Content of Optical Signals to Enhance Cardiac Arrhythmia Screening NCT04884100 | Centre Hospitalier Universitaire Vaudois | N/A |
| Active Not Recruiting | Protection of Cardiac Function With Left Bundle Branch Pacing in Patients With Atrioventricular Block NCT04624763 | The First Affiliated Hospital with Nanjing Medical University | N/A |
| Recruiting | LVSP vs RVP in Patients With AV Conduction Disorders NCT04595487 | Maastricht University | N/A |
| Completed | Impact of Left Bundle Branch Area Pacing vs. Right Ventricular Pacing in Atrioventricular Block (LEAP-Block) NCT04730921 | Fu Wai Hospital, Beijing, China | N/A |
| Unknown | COVIDAR - Arrhythmias in COVID-19 NCT04437901 | Hospital Clinic of Barcelona | — |
| Completed | Risk of Pacing-induced Cardiomyopathy NCT04269733 | Aalborg University Hospital | — |
| Completed | Impact of Atrio-ventricular Optimization With His Bundle Pacing on Treatment of Atrio-ventricular Dromotropath NCT04544345 | University Medical Centre Ljubljana | N/A |
| Terminated | Left Bundle Area Versus Selective His Bundle Pacing NCT04093414 | David Haines, MD | N/A |
| Unknown | Left Bundle Branch Area Pacing in AVB Patients NCT03851315 | Fu Wai Hospital, Beijing, China | — |
| Terminated | SHERLOCK 3CG™ Diamond Tip Confirmation System NCT03288766 | C. R. Bard | — |
| Completed | Long-term Efficacy and Safety Research of Left Bundle Branch Pacing NCT05600699 | Linyi People's Hospital | — |
| Unknown | Moderato System in Patients With Hypertension NCT03757377 | BackBeat Medical Inc | N/A |
| Completed | Arrhythmias in Post-Myocardial Infarction Patients NCT03231826 | Tampere University | — |
| Unknown | Cohort Description of Younger With AV-block NCT03024047 | University of Aarhus | — |
| Unknown | Moderato System: A Double-Blind Randomized Trial Ver 1.1 NCT02837445 | BackBeat Medical Inc | N/A |
| Completed | Analysis of Adenosine on Sinus and Atrioventricular Nodal Conduction in the Pediatric Transplanted Heart NCT02462941 | Columbia University | Phase 1 |
| Completed | Pacemaker Utilization and Ventricular Pacing in Patients Undergoing Trans-catheter Aortic Valve Replacement (T NCT02994667 | Baylor Research Institute | — |
| Completed | Systemic Lupus Erythematous and Heart Conduction Disorders NCT02162992 | Germans Trias i Pujol Hospital | — |
| Completed | AV Delay Optimization vs. Intrinsic Conduction in Pacemaker Patients With Long PR Intervals NCT02154750 | University of California, San Diego | N/A |
| Completed | Impact of Right Ventricular Pacing Determined by Electrocardiography NCT01922518 | Yong Seog Oh | N/A |
| Completed | Safety and Performance Study of the Moderato System NCT02282033 | BackBeat Medical Inc | N/A |
| Terminated | Impact of Septal Vs Apical Pacing on Right and Left Ventricular Performance NCT01798043 | Abbott Medical Devices | N/A |
| Unknown | Safety and the Effects of Isolated Left Ventricular Pacing in Patients With Bradyarrhythmias NCT01717469 | University of Sao Paulo | Phase 4 |
| Completed | Evolution of the PR Interval in Patients Implanted With a Pacemaker Using the SafeR Mode NCT02586480 | LivaNova | — |
| Completed | Comparison of SEPTal and Apical Pacing Sites in PerManent Right Ventricular Pacing NCT00925691 | Rennes University Hospital | Phase 3 |
| Withdrawn | Biventricular Alternative Pacing NCT00559143 | Medtronic Hellas Medical Devices ΑEE | Phase 4 |
| Completed | Acute and Chronic Effect of His-pacing in Consecutive Patients With AV-block NCT01019213 | Aarhus University Hospital Skejby | Phase 4 |
| Completed | Biventricular Versus Right Ventricular Pacing in Heart Failure Patients With Atrioventricular Block (BLOCK HF) NCT00267098 | Medtronic Cardiac Rhythm and Heart Failure | N/A |
| Completed | Biopace Study: Biventricular Pacing for Atrioventricular Block to Prevent Cardiac Desynchronization NCT00187278 | Abbott Medical Devices | N/A |
| Completed | The Atrial High Rate Episodes in Pacemaker Patients NCT00627328 | Medtronic Cardiac Rhythm and Heart Failure | — |
| Unknown | Ventricular Pacing Site Selection (V-PASS) NCT00292383 | Medtronic BRC | Phase 4 |