Clinical trials
Cardiac clinical trials
Below are recruiting cardiac clinical trials, each written for real people, not researchers. We’re tracking 1,308 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05888974Recruiting
Test of heart ultrasound to guide fluids in shock
This study checks whether a specific heart ultrasound measurement can help doctors decide if you will benefit from extra fluid during early emergency treatment for shock. It may help avoid unnecessary fluids and support faster, safer decision-making.
NîmesAges 18 years+ - NCT05635877RecruitingPhase 4
Low-dose heart-rate medicine after surgery in frail older adults
This trial tests whether a low dose of esmolol (a short-acting heart-rate medicine) can reduce heart muscle injury after non-heart surgery in older, frail people. It may help lower the chance of heart-related complications around the time of surgery.
Jinan, ShandongAges 65–90 - NCT05470686Recruiting
Heart surgery patients: link oxygen levels to lung ultrasound
This study checks how well a lung ultrasound score matches oxygen levels after heart surgery. It may help clinicians monitor breathing problems using ultrasound and guide non-drug breathing and therapy care.
Vandœuvre-lès-NancyAges 18 years+ - NCT05499637RecruitingPhase 2
PET/CT scan using a special tracer for heart inflammation
This Phase 2 study tests whether a PET/CT scan using a radioactive tracer can help evaluate acute heart inflammation. It may help doctors better identify inflammation and guide follow-up, especially in people suspected of specific heart inflammation conditions or recently after heart transplant follow-up.
Lausanne, Canton of VaudAges 18 years+ - NCT04770012RecruitingPhase 3
Aspirin or clopidogrel after heart transplant
This study tests antiplatelet medicines (like aspirin or clopidogrel) in people who have had a heart transplant. The goal is to see if these medicines can safely help prevent blood-related complications after transplant.
Vancouver, British ColumbiaAges 18 years+ - NCT05214365Recruiting
Pacing study to help people with heart block avoid stronger harm
This study looks at a heart pacing approach to prevent damage to the heart muscle that can sometimes happen after a pacemaker is placed for atrioventricular (heart rhythm) block. It may help some people avoid worsening heart function over time.
BarcelonaAges 18–100 - NCT04795193Enrolling by invitation
Minithoracotomy vs open surgery for multiple blocked heart arteries
This trial compares two types of bypass surgery for people with multiple blocked heart arteries, to see which one better improves quality of life and how well the bypasses stay open. You may be assigned based on your preferences, and the study also tracks heart scan and follow-up results.
Beijing, Beijing MunicipalityAges 25–85 - NCT04077762Recruiting
Radial vs femoral access to reduce bleeding in heart procedures
This study compares two ways doctors can reach the heart during a catheter procedure: through the wrist (radial) or the groin (femoral). It aims to reduce bleeding and access-site complications, especially when patients may need a balloon/stent (PCI).
San Francisco, CaliforniaAges 18 years+ - NCT05089162Recruiting
Testing a heart ultrasound approach in chronic heart failure
This study looks at people with chronic heart failure with weaker pumping function and checks how well a lung/heart ultrasound can assess congestion (fluid buildup). If you qualify, you may help test a better way to evaluate your condition during a planned hospital visit.
Vandœuvre-lès-NancyAges 18 years+ - NCT01130545Recruiting
MRI testing of different scan methods in older adults
This study tests different MRI imaging techniques to improve how scans look and measure targets. You may be able to join with or without a contrast dye, and you’ll need to travel to the NIH for follow-up visits.
Bethesda, MarylandAges 18–100 - NCT04558723Recruiting
MRI-guided heart defibrillator placement for non-ischemic weakened hearts
This study looks at whether using a heart MRI (CMR) to guide where to place an implanted defibrillator (ICD) improves outcomes for people with a weakened heart muscle caused by non-ischemic dilated cardiomyopathy. It’s for adults who have low pumping strength and evidence of heart scarring on MRI.
Lübeck, Schleswig-HolsteinAges 18 years+ - NCT03746964Recruiting
MRI study of the heart’s aorta before planned surgery
This study uses a special MRI scan to measure how the ascending aorta (a large blood vessel) moves and behaves before planned surgery. It may help doctors better understand the mechanics of an aortic aneurysm and improve future surgical planning.
DijonAges 18 years+ - NCT03053141Recruiting
RHAPSODY mapping study during catheter procedures for heart rhythm
This study tests how heart electrical signals are mapped and recorded during a standard catheter procedure for atrial or ventricular rhythm problems. It may help researchers improve the way doctors analyze rhythm data, using a specific mapping system.
Birmingham, AlabamaAges 18 years+ - NCT03292861Enrolling by invitationPhase 2
Thymoglobulin after first heart transplant: safety and effect
This trial tests whether Thymoglobulin® is safe and how well it works in people getting their first heart transplant. It may help doctors fine-tune medicines used to prevent the body from rejecting the new heart.
Los Angeles, CaliforniaAges 18–70 - NCT07130409Recruiting
Heart imaging after emergency angioplasty for first heart attack
This study uses advanced heart scans (MRI) before and after a common artery-opening procedure to see how the heart heals. It only includes people having their first heart attack who get emergency treatment with a stent.
Qingdao, ShandongAges 18–80 - NCT06464263Recruiting
Dexmedetomidine vs. midazolam-fentanyl for sedation
This trial compares two sedation and pain relief medicine combinations (dexmedetomidine vs. midazolam-fentanyl) to see which works better for people having planned heart valve surgery.
CairoAges 21–50 - NCT02670408Recruiting
Microarrays test in heart transplant care
This study checks how special lab tests on heart tissue samples can help guide diagnosis and treatment for people with a heart transplant. You may be eligible if you already need a heart tissue biopsy for a clinical reason and can provide consent.
Los Angeles, CaliforniaAges 18 years+ - NCT06506968Recruiting
Ergonomics study for heart lab staff
This study looks at how ergonomics (the way your body moves and feels at work) affect staff in the heart catheterization lab. You might join if you work there and are willing to wear special sensors to track your movements.
Boston, MassachusettsAges 21 years+ - NCT06390423Recruiting
Leg raise and fluid test for heart response in shock
This trial tests a simple bedside test (raising your legs and giving a small amount of fluid) to see how well your heart responds. It is for patients in the ICU with vasodilatory shock and severe lung injury who are on a ventilator.
Saint Cloud, MinnesotaAges 30–90 - NCT06149195Enrolling by invitation
Heart scan for managing heart failure
This trial tests a special heart scan (18F-MFBG) to see if it can help doctors better manage heart failure. You may qualify if you have chronic heart failure with a weak heart pump and are planning to get a defibrillator.
Chengdu, SichuanAges 18–80 - NCT05885230Recruiting
Pain relief after heart surgery: nerve block vs lidocaine drip
This trial compares two ways to manage pain after open-heart surgery: an ultrasound-guided nerve block (PIFB) versus lidocaine given through a vein. The goal is to see which method works better and helps you recover more comfortably.
Banī Suwayf, e\EYGPTAges 18–75 - NCT06405516Recruiting
Platelet function after heart surgery
This study watches how well platelets (cells that help blood clot) work in people who have high-risk heart surgery using a heart-lung machine for more than 2 hours. The goal is to learn more about bleeding risks after surgery.
BernAges 18 years+ - NCT06327308RecruitingPhase 1
MRI study for heart health in liver transplant candidates
This study uses a special heart MRI to check for a heart condition called cirrhotic cardiomyopathy in people waiting for a liver transplant. The results may help doctors better understand and treat heart problems in patients with cirrhosis.
BesançonAges 18–70 - NCT02798731Recruiting
Testing blood vessel function after a heart transplant
This trial measures how well tiny blood vessels in the heart are working in people who have had a heart transplant. It may help doctors understand transplant-related circulation problems and guide future care.
SeoulAges 18–85
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Common questions
- Are there clinical trials for cardiac?
- Yes. Clin2 currently lists 1,308 recruiting cardiac studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a cardiac trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a cardiac trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.