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Heart Disease Clinical Trials Recruiting Now

Published April 6, 2026 · ClinicalTrials.gov data

Heart disease remains the leading cause of death in the United States, but the treatment landscape is evolving rapidly. SGLT2 inhibitors have expanded from diabetes drugs to cornerstone heart failure therapies. RNA-based medicines are targeting previously untreatable genetic risk factors. And cardiac device innovation, from leadless pacemakers to transcatheter valves, continues to make procedures less invasive and more effective.

Important: This is not medical advice. If you are experiencing chest pain or other symptoms of a heart attack, call 911 immediately. Talk to your doctor about whether a clinical trial is right for you.

SGLT2 Inhibitors: From Diabetes to Heart Failure Standard of Care

SGLT2 inhibitors (empagliflozin, dapagliflozin) were originally developed for Type 2 diabetes but proved to have remarkable cardiovascular benefits. Current trials are expanding their use:

  • HFpEF (preserved ejection fraction): The most common type of heart failure, historically without effective treatments. SGLT2 inhibitors are now being tested in more specific HFpEF subtypes.
  • Post-heart attack: Trials testing whether early SGLT2 inhibitor use after myocardial infarction can prevent heart failure development
  • Cardiac amyloidosis: Exploring SGLT2 inhibitor benefit in this growing diagnosis
  • Combination therapies: Pairing SGLT2 inhibitors with other heart failure drugs to maximize benefit

RNA Therapies: Precision Cardiovascular Medicine

RNA-based therapies represent a paradigm shift in cardiovascular treatment, targeting the genetic instructions that produce harmful proteins:

  • Lp(a) reduction: Elevated lipoprotein(a) affects 20% of the population and has no approved treatment. siRNA and antisense drugs in Phase 3 trials can reduce Lp(a) by 80-90% with quarterly or semi-annual injections.
  • PCSK9 siRNA: Inclisiran is approved, but next-generation RNA therapies aim for longer duration and broader lipid effects.
  • Triglyceride reduction: RNA drugs targeting ANGPTL3 and ApoCIII for severe hypertriglyceridemia.
  • Cardiac repair: Early-stage mRNA therapies that instruct the heart to produce regenerative growth factors after injury.

Device and Procedural Trials

Cardiovascular device innovation is moving toward less invasive, longer-lasting, and smarter technologies:

  • Pulsed field ablation (PFA): A next-generation ablation technology for AFib that targets heart tissue more selectively than thermal ablation, potentially reducing complications
  • Transcatheter valve replacement: Expanding beyond aortic valves to mitral and tricuspid valve repair/replacement without open-heart surgery
  • Leadless pacemakers: Tiny pacemakers implanted directly in the heart, eliminating the need for leads and surgical pockets
  • Cardiac regeneration: Experimental approaches using stem cells, gene therapy, or engineered tissue to regenerate damaged heart muscle

Recruiting Heart Disease Trials

ConditionRecruiting Trials
Hypertension128
Heart Failure125
Coronary Artery Disease112
Pulmonary Hypertension102
Cardiomyopathy102
Atrial Fibrillation101
Heart Attack100
Peripheral Artery Disease100
Aortic Stenosis100
Deep Vein Thrombosis59
Atrial Fibrillation (af)26
Myocardial Infarction25
Aortic Valve Stenosis23
Acute Coronary Syndrome23
Pulmonary Arterial Hypertension22
Ocular Hypertension11
Heart Failure With Preserved Ejection Fraction10
Hypertrophic Cardiomyopathy9
Acute Myocardial Infarction9
Thrombosis8
Percutaneous Coronary Intervention8
Myocardial Infarction (mi)8
Pulmonary Arterial Hypertension (pah)7
Hypertrophic Cardiomyopathy (hcm)7
Peripheral Artery Disease (pad)7
Coronary Heart Disease6
Heart Failure With Reduced Ejection Fraction6
Atrial Fibrillation Paroxysmal6
Dilated Cardiomyopathy5
Ischemic Cardiomyopathy5
St Elevation Myocardial Infarction5
Coronary Arterial Disease (cad)5
Chronic Thromboembolic Pulmonary Hypertension5
Severe Aortic Stenosis5
Amyloid Cardiomyopathy4
Heart Failure, Systolic4
Heart Failure, Congestive4
Congestive Heart Failure4
Acute Heart Failure4
St Elevation Myocardial Infarction4
Coronary Artery Disease (cad)4
Persistent Atrial Fibrillation4
Arrhythmogenic Cardiomyopathy4
Non-ischemic Cardiomyopathy4
Aortic Diseases4
Acute Myocardial Infarction (ami)4
Acute Coronary Syndromes (acs)4
Deep Venous Thrombosis4
Deep Vein Thrombosis (dvt)4
Heart Failure With Reduced Ejection Fraction (HFrEF)3
Heart Failure, Diastolic3
Heart Failure Nyha Class Ii3
Heart Failure Nyha Class Iii3
Hypertension,Essential3
Coronary Artery Bypass3
Heart Failure (hf)3
HFpEF - Heart Failure With Preserved Ejection Fraction3
Aortic Valve Diseases3
Aortic Valve Disease3
St-segment Elevation Myocardial Infarction (STEMI)3
Acute Coronary Syndromes3
Percutaneous Coronary Intervention (pci)3
Coronary Disease3
TAVI(Transcatheter Aortic Valve Implantation)3
Atrial Fibrillation, Persistent3
Gestational Hypertension3
Portal Hypertension3
Hypertension in Pregnancy3
Hypertension, Pulmonary3
Pulmonary Artery Hypertension3
Inflammatory Cardiomyopathy3
Dilated Cardiomyopathy (dcm)3
Hcm - Hypertrophic Cardiomyopathy3
Arrhythmogenic Right Ventricular Cardiomyopathy3
Superficial Femoral Artery Stenosis3
Ascending Aortic Dilatation3
Transcatheter Aortic Valve Implantation3
Transcatheter Aortic Valve Replacement3
Myocardial Infarction, Acute3
Thrombosis, Deep Vein2
Portal Hypertension Related to Cirrhosis2
Thoracic Aortic Aneurysm2
Atrial Appendage Closure for Atrial Fibrillation2
Stroke (in Patients With Atrial Fibrillation)2
Decompensated Heart Failure2
Heart Failure2
Chronic Heart Failure2
Heart Failure Acute2
Advanced Heart Failure2
Heart Failure2
Atrial Fibrillation and Flutter2
St-elevation Myocardial Infarction (STEMI)2
Premature Coronary Heart Disease2
Non-Obstructive Coronary Atherosclerosis2
Coronary Microvascular Dysfunction (cmd)2
Spontaneous Coronary Artery Dissection2
Multi Vessel Coronary Artery Disease2
Paroxysmal Atrial Fibrillation2
STEMI - St Elevation Myocardial Infarction2
Hypertension (htn)2
Resistant Hypertension2
Idiopathic Intracranial Hypertension (iih)2
Idiopathic Pulmonary Arterial Hypertension2
Heritable Pulmonary Arterial Hypertension2
Primary Sjogren's Syndrome Combined With Pulmonary Hypertension2
Group 2 Pulmonary Hypertension2
Pulmonary Arterial Hypertension2
Obstructive Hypertrophic Cardiomyopathy2
Septic Cardiomyopathy2
Peripartum Cardiomyopathy2
Acs (Acute Coronary Syndrome)2
Ischemic Cardiomyopathy2
Transthyretin Amyloid Cardiomyopathy (attr Cm)2
Transthyretin Amyloidosis With Cardiomyopathy2
Takotsubo Cardiomyopathy2
Cardiomyopathy, Dilated2
Obstructive Hypertrophic Cardiomyopathy (oHCM)2
Carotid Artery Diseases2
Aortic Stenosis Treated With Tavi2
Aortic Regurgitation2
Bicuspid Aortic Valve2
Coronary Stenosis2
Pulmonary Embolism and Thrombosis2
Dvt - Deep Vein Thrombosis2
Coronary Artery Aneurysm2
Coronary Computed Tomography Angiography2

Frequently Asked Questions

What types of heart disease clinical trials are recruiting?

There are approximately 1524 heart disease clinical trials currently recruiting. These include drug trials (SGLT2 inhibitors, RNA therapies, anti-inflammatory agents), device trials (leadless pacemakers, transcatheter valves, left ventricular assist devices), and procedural trials (new ablation techniques, minimally invasive surgery). Talk to your doctor about whether a clinical trial is right for you.

Can I join a heart failure clinical trial?

Heart failure is one of the most active areas of cardiovascular research. Trials recruit patients across the spectrum, from preserved ejection fraction (HFpEF) to reduced ejection fraction (HFrEF), and from newly diagnosed to advanced heart failure. Eligibility depends on your specific type, severity, and current medications. Talk to your doctor about whether a clinical trial is right for you.

What are RNA therapies for heart disease?

RNA-based therapies (siRNA, antisense oligonucleotides, mRNA) are being tested for cardiovascular conditions including high Lp(a), high triglycerides, and amyloid cardiomyopathy. Inclisiran (a PCSK9 siRNA) is already approved for cholesterol. Newer RNA drugs target specific genetic risk factors with twice-yearly injections, potentially replacing daily pills.

Are there clinical trials for AFib?

Yes. Atrial fibrillation trials include new anticoagulants with lower bleeding risk, pulsed field ablation (PFA) technology that is more precise than thermal ablation, left atrial appendage closure devices, and upstream therapies that address the underlying causes of AFib. Talk to your doctor about whether a clinical trial is right for you.

About This Data

Trial data from ClinicalTrials.gov API v2, last updated May 8, 2026. Recruiting counts reflect actively enrolling studies. This is not medical advice, talk to your doctor about clinical trials. See our methodology.