Cardiac Clinical Trials

712 recruitingLast updated: May 13, 2026

There are 712 actively recruiting cardiac clinical trials across 72 countries. Studies span Not Applicable, Phase 3, Phase 4, Phase 2, Phase 1, Early Phase 1. Top locations include Boston, Massachusetts, United States, Paris, France, London, United Kingdom. Updated daily from ClinicalTrials.gov.


Cardiac Trials at a Glance

712 actively recruiting trials for cardiac are listed on ClinicalTrialsFinder across 6 cities in 72 countries. The largest study group is Not Applicable with 248 trials, with the heaviest enrollment activity in Boston, Paris, and London. Lead sponsors running cardiac studies include Assistance Publique - Hôpitaux de Paris, National Taiwan University Hospital, and Mayo Clinic.

Treatments under study

About Cardiac Clinical Trials

Looking for clinical trials for Cardiac? There are currently 3 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 Cardiac 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 Cardiac 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 712 trials

Recruiting

Distribution of Cell-cell Junction Proteins in Arrhythmic Disorders

Arrhythmogenic Right Ventricular DysplasiaBrugada SyndromeCardiac Channelopathy
St. George's Hospital, London26 enrolled1 locationNCT04257994
Recruiting

An Observational Post-marketing Study Using Commercially Approved Biosense Webster (BWI) Medical Devices for the Treatment of Participants With Cardiac Arrhythmias

Arrhythmias, Cardiac
Biosense Webster, Inc.8,000 enrolled39 locationsNCT04750798
Recruiting
Not Applicable

Effect of Coughing Exercises Versus Incentive Spirometry on Respiratory Function and Recovery in Children After Cardiac Surgery.

Congenital Heart Disease (CHD)Postoperative Respiratory DysfunctionPostoperative Recovery After Cardiac Surgery
University of Baghdad99 enrolled4 locationsNCT07405333
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

The Impact of Multiple Antihypertensive Therapy on Post-Induction Hypotension Burden in Cardiac Surgery Patients

Antihypertensive AgentsCardiac SurgeryHemodynamics+2 more
Konya City Hospital160 enrolled1 locationNCT07541222
Recruiting
Phase 2

Efficacy of Early Intravenous High-dose Vitamin C in Post-cardiac Arrest Shock.

Cardiac Arrest
Centre Hospitalier de Bethune234 enrolled14 locationsNCT05817851
Recruiting

Seasonal Physical Activity in Patients With Heart Failure With Cardiac Implantable Electronic Devices

Heart FailurePhysical ActivitiesCardiac Implantable Electrical Devices
Erol Olcok Corum Training and Research Hospital24 enrolled1 locationNCT07420088
Recruiting

Assessment of Validity and Reliability of the Turkish Version of the Quality of Life and Related Events Assessment Scale for Pacemaker Patients

cardiac implantable electronic devicesQuality of Life
Erol Olcok Corum Training and Research Hospital120 enrolled1 locationNCT06775223
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

Ultrasound-Guided Transversus Abdominis Plan (TAP) Block in Endovascular Cardiac Interventions

AnesthesiologyAnalgesiaPercutaneous Coronary Intervention+2 more
Istanbul University - Cerrahpasa100 enrolled1 locationNCT06576128
Recruiting
Not Applicable

The Multicenter Stress Cardiac Magnetic Resonance Quantitative Perfusion Imaging in the United States Study

Cardiac Magnetic Resonance ImagingIschemic Heart Disease (IHD)Myocardial Blood Flow
Brigham and Women's Hospital1,000 enrolled11 locationsNCT06854458
Recruiting

National Network for Cardiovascular Genomics: Advancing Cardiovascular Healthcare for Hereditary Diseases in Brazil's Unified Health System Through a Multicenter Registry

Sudden Cardiac DeathArrhythmogenic Right Ventricular DysplasiaCardiomyopathy, Dilated+11 more
Hospital do Coracao1,211 enrolled27 locationsNCT06546137
Recruiting
Phase 4

LANdiolol to Avoid TAchycardia in Patients at Risk for Cardiovascular Events Undergoing Major Non-cardiac Surgery

myocardial injury after non-cardiac surgeryAutonomic DysfunctionCardiovascular (CV) Risk+3 more
Insel Gruppe AG, University Hospital Bern114 enrolled1 locationNCT07168421
Recruiting
Not Applicable

CellFX® Nanosecond Pulsed Field Ablation (PFA) 360 Catheter Ablation System for Treatment of Atrial Fibrillation

Atrial Fibrillation (Paroxysmal)Cardiac ArrhythmiaCardiac Ablation
Pulse Biosciences, Inc.60 enrolled3 locationsNCT06696170
Recruiting
Not Applicable

NS-PFA Catheter Ablation of Paroxysmal Atrial Fibrillation With the Pulse Biosciences CellFX System

Atrial Fibrillation (Paroxysmal)Cardiac ArrhythmiaCardiac Ablation
Pulse Biosciences, Inc.215 enrolled1 locationNCT07018596
Recruiting

Observational Study of Cardiac Arrhythmias During Treatment With BTK Inhibitors or Venetoclax

Mantle Cell LymphomaSudden Cardiac DeathChronic Lymphocytic Leukemia (CLL)+3 more
National Heart, Lung, and Blood Institute (NHLBI)135 enrolled1 locationNCT05724121
Recruiting

RHythmia mAPping and Signal acquisitiOn for Data analYsis (RHAPSODY)

Cardiac Arrythmias
Boston Scientific Corporation100 enrolled8 locationsNCT03053141
Recruiting
Not Applicable

FAPI PET/CT Imaging in Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) (FAPI-ARVC))

Cardiac Magnetic Resonance ImagingArrhythmogenic Right Ventricular CardiomyopathyFAPI PET
Istanbul University - Cerrahpasa15 enrolled1 locationNCT07563660
Recruiting
Phase 3

Evaluation of Analgesia for Cardiac Elective Surgery in Children

Pediatric Cardiac Surgery
Senthil Sadhasivam500 enrolled1 locationNCT06626035
Recruiting
Phase 2

LSALT Peptide for Prevention or Attenuation of Acute Kidney Injury (AKI) in Patients Undergoing On-Pump Cardiac Surgery

Acute Kidney InjuryCardiac Surgery
Arch Biopartners Inc.240 enrolled9 locationsNCT05879432