Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,613 recruiting studies in this area right now.
By phase
- Not applicable7,634
- Phase 2471
- Phase 4471
- Phase 3438
- Phase 1350
- Phase 1/Phase 2161
- Phase 2/Phase 388
Top conditions
- Stroke796
- Heart Failure535
- Hypertension389
- Cardiovascular Diseases374
- Coronary Artery Disease362
- Multiple Myeloma328
- Atrial Fibrillation259
- Ischemic Stroke190
- Atrial Fibrillation (AF)154
- Acute Ischemic Stroke139
- Pulmonary Hypertension104
- Myocardial Infarction96
- Congenital Heart Disease83
- Peripheral Arterial Disease80
- Stroke, Ischemic77
- Aortic Valve Stenosis76
- Obesity74
- Acute Coronary Syndrome73
Leading sponsors
- Mayo Clinic93
- Assistance Publique - Hôpitaux de Paris88
- National Taiwan University Hospital67
- China National Center for Cardiovascular Diseases60
- Second Affiliated Hospital, Zhejiang University, School of Medicine58
- Beijing Tiantan Hospital53
- Insel Gruppe AG, University Hospital Bern49
- Massachusetts General Hospital49
- Yonsei University48
- Johns Hopkins University45
Where studies are running
- California449
- Alabama195
- Arizona182
- Massachusetts174
- New York166
- Florida141
- Texas122
- Maryland118
- Minnesota118
- Illinois111
Recruiting studies9,613 total
- NCT07462624Recruiting
Comparing treatments for a failing surgical aortic valve
This trial compares two ways to treat a failing aortic valve that was replaced with a tissue valve during surgery: another surgical replacement or a less invasive catheter-based valve-in-valve procedure. It is for people with low to intermediate surgical risk who are between 18 and 75 years old.
Leipzig, SaxonyAges 18–75 - NCT07454005Enrolling by invitation
Laser tool for wrist artery access in children
This study tests a new laser-guided tool to help doctors place a small tube in the wrist artery of babies and young children during surgery. It aims to make the procedure faster and safer for your child.
Changchun, JilinAges 1 day–2 years - NCT07456280Recruiting
Early discharge after TAVI using heart monitoring
This study tests if patients who have mild heart electrical changes after TAVI can be sent home early with a portable heart monitor instead of staying in the hospital. It aims to see if this approach is safe and effective.
BarcelonaAges 18 years+ - NCT06795958Recruiting
Detecting heart rejection without a biopsy in children
This trial tests if a special MRI can detect early signs of heart rejection in children and young adults who have had a heart transplant. If successful, it might reduce the need for invasive biopsies.
BolognaAges Up to 18 years - NCT06797804Recruiting
Horticultural therapy for older adults in long-term care
This study tests if an app-guided gardening program can improve heart health, reduce stress and depression, and boost happiness in older adults living in nursing homes. It aims to see if these sessions can help you feel better overall.
TaipeiAges 65 years+ - NCT02693223Recruiting
Get With the Guidelines Stroke Registry for people with recent stroke
This study collects health information from people who were recently treated for certain types of stroke or “TIA” (a warning stroke). It helps doctors understand care and improve future treatment, and you may be included if you were treated in the hospital for one of these conditions.
Dallas, TexasAges 18–125 - NCT04507178RecruitingPhase 2
Nadroparine to improve recovery after bleeding in the brain
This study tests whether nadroparine (a blood-thinning medicine) can improve outcomes after a type of brain bleed called subarachnoid hemorrhage. It focuses on people who have had a brain aneurysm treated with a procedure soon after the bleed.
AmsterdamAges 18 years+ - NCT02693509Recruiting
Hospitalized heart failure patients can join a heart study registry
This study collects information from people who are hospitalized for congestive heart failure. It helps researchers understand how heart failure is treated in real-world care and may improve future guidelines.
Dallas, TexasAges 18–125 - NCT06156670Recruiting
A study of closing a PFO to prevent strokes
This trial looks at the safety and results of closing a PFO (a small hole in the heart) in people who have had a stroke or embolism with no other clear cause. If you qualify, doctors will close your PFO using a small tube inserted through a blood vessel and then follow your health over time.
MoscowAges 18–70 - NCT06386094Recruiting
Fatty Liver Disease and Heart Function Study
This study checks how fatty liver disease (a condition where fat builds up in the liver) affects the heart. If you have this liver condition and are between 18 and 65, you may help doctors understand the link between liver health and heart function.
Chandigarh, ChandigarhAges 18–65 - NCT06245187Recruiting
Atrial Fibrillation In-Hospital Registry
This registry study collects information on people hospitalized for atrial fibrillation or atrial flutter (types of irregular heartbeats) to help doctors learn how to improve care. By joining, you help researchers understand what treatments work best.
Dallas, TexasAges 18–125 - NCT06626672Recruiting
Digital Health Program for Kids with Heart Defects
This study uses digital tools to promote healthy habits in children (ages 8–14) with congenital heart disease. It aims to support both the child and their family in staying active and well.
MünchenAges 8–14 - NCT06797908Recruiting
High Blood Pressure in Children and Teens
This study looks at high blood pressure in children and teens. It aims to understand how to manage it in young people under 18.
Bologna, BolognaAges Up to 18 years - NCT06799780Recruiting
Surgery for heart hole after heart attack: timing study
This study looks at people who had a hole in their heart after a heart attack and had surgery to fix it. The goal is to understand how the timing of surgery affects recovery.
Bologna, BolognaAges 18 years+ - NCT07452991Recruiting
Ultrasound-guided clot-busting for moderate-risk pulmonary embolism
This trial tests a procedure that uses ultrasound to guide a catheter that delivers clot-dissolving medicine directly to a blood clot in the lungs. It is for people who have a pulmonary embolism that causes some heart strain but who are not in shock.
MoscowAges 18 years+ - NCT07451522Recruiting
Comparing pain relief methods after heart bypass surgery
This study compares different ways to manage pain after coronary artery bypass grafting (CABG), which is heart bypass surgery. The goal is to find which approach works best and is safest for patients in the early recovery period.
Vladivostok, Outside USAges 18–75 - NCT07446023Recruiting
Testing a new way to measure heart artery blockages
This study compares two advanced imaging methods (IVUS and FFR) to see which better identifies blockages that need treatment. It may help doctors decide the best care for people with chest pain or recent heart attacks.
Beijing, Beijing MunicipalityAges 18 years+ - NCT06550596Recruiting
Amnion membrane for diabetic foot ulcers
This trial tests a wound covering made from donated amniotic tissue (dehydrated human amnion membrane) placed on a diabetic foot ulcer that isn't healing. It aims to see if adding this membrane to standard wound care helps the ulcer close faster.
Thousand Oaks, CaliforniaAges 18 years+ - NCT06688396Recruiting
Finding early signs of dilated cardiomyopathy with AI and mobile screening
This trial uses a smartphone app to screen first-degree relatives of people with dilated cardiomyopathy (DCM) for early signs of the condition. It aims to detect heart muscle weakness before symptoms start, so that treatment can begin sooner.
Lancaster, PennsylvaniaAges 18 years+ - NCT07447934Recruiting
Vibration therapy for leg muscle stiffness
This trial tests if gentle vibrations can reduce muscle stiffness (spasticity) in the lower leg after a neurologic condition like stroke or brain injury. You may join if you've had spasticity for at least 6 months and can stand with or without help.
New York, New YorkAges 18–85 - NCT07444853Recruiting
Improving recovery after brain hemorrhage
This study looks at people who come to the emergency room with a bleeding stroke (called intracerebral hemorrhage). It aims to learn more about the condition by studying blood tests and brain scans, to find ways to improve outcomes.
AngersAges 18 years+ - NCT07453251Recruiting
Tracking aortic strength for aneurysm surgery patients
This study tracks how the thickness of the aortic wall relates to strength in people having surgery for an aortic aneurysm. It aims to better understand the condition and possibly improve future care.
San Donato Milanese, MIAges 18 years+ - NCT07452276Recruiting
AI brain training for stroke recovery
This trial tests a computerized brain-training program that uses artificial intelligence to help people with memory problems after a stroke. If you are between 45 and 60 and had a stroke at least 3 months ago, you may be able to join.
Cairo, EgyptAges 45–60 - NCT07448818Recruiting
Strength training for older adults with high blood pressure
This study tests whether different types of strength training (dynamic and isometric) can help older adults with high blood pressure who are already taking medication. It's designed for people who are not very active and have no major health risks.
São Paulo, São PauloAges 60 years+
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,613 recruiting cardiology studies from the U.S. registry right now, out of 14,690 we cover in this area in total.
- What does “Heart & circulation” cover here?
- Heart disease, blood pressure, and disorders of the blood vessels and circulation. We group each study into heart & circulation based on the conditions it studies, so you can scan the whole therapeutic area at once and drill into a specific condition.
- How do I find a heart & circulation trial near me?
- Use the search to filter heart & circulation studies by location and eligibility. Every Clin2 trial page explains the criteria in plain English and offers a short, optional pre-screen for a fit read — the study team makes the final decision.
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- Injuries & trauma
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Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov; specialty groupings are derived from each study’s conditions. Talk with your doctor about whether a specific trial is right for you.