Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,609 recruiting studies in this area right now.
By phase
- Not applicable7,632
- Phase 4472
- Phase 2469
- Phase 3439
- Phase 1350
- Phase 1/Phase 2160
- Phase 2/Phase 387
Top conditions
- Stroke797
- Heart Failure534
- Hypertension388
- Cardiovascular Diseases373
- Coronary Artery Disease363
- Multiple Myeloma327
- Atrial Fibrillation259
- Ischemic Stroke190
- Atrial Fibrillation (AF)154
- Acute Ischemic Stroke139
- Pulmonary Hypertension104
- Myocardial Infarction97
- Congenital Heart Disease84
- Peripheral Arterial Disease79
- Stroke, Ischemic78
- Aortic Valve Stenosis76
- Obesity74
- Acute Coronary Syndrome73
Leading sponsors
- Mayo Clinic93
- Assistance Publique - Hôpitaux de Paris88
- National Taiwan University Hospital68
- 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
- California453
- Alabama196
- Arizona181
- Massachusetts173
- New York168
- Florida140
- Texas122
- Maryland118
- Minnesota117
- Illinois112
Recruiting studies9,609 total
- NCT07810192Recruiting
Compression stockings for leg veins during long flights after surgery
This trial tests whether wearing a certain type of compression stocking during a long economy-class flight helps prevent veins in the legs from widening after plastic surgery. If you are planning such a trip, the study may help you recover more safely and comfortably.
BogotáAges 18–65 - NCT07810179Recruiting
Cabin class and leg vein size after long flights
This study looks at how flying in premium versus economy class affects the size of a leg vein (the popliteal vein) after a long flight, which may help understand blood clot risk during travel. It compares people who fly in either cabin class before having an aesthetic surgery.
BogotáAges 18–65 - NCT07814118Enrolling by invitation
Understanding how your body works during routine care
This study looks at how different body systems work together in people with various conditions and healthy volunteers. It uses routine medical tests and data to understand health better, which can help improve future care.
New York, New YorkAges 18 years+ - NCT07811024Recruiting
Strolimus-coated balloon for blocked coronary arteries
This study tests a balloon coated with a drug that may help keep arteries open after they've been cleared, especially for people with a narrowing inside a previously placed stent or in a small heart artery. It's a first-time-in-humans study to check if the treatment is safe and works.
TashkentAges 21 years+ - NCT07816185RecruitingPhase 3
Inhaled study drug for pulmonary hypertension with lung scarring
This study tests an inhaled medication called mosliciguat for people with pulmonary hypertension (high blood pressure in the lungs) caused by certain types of lung scarring. It may help improve your ability to exercise and manage symptoms.
Kissimmee, FloridaAges 18–85 - NCT07816029Recruiting
Closing a heart pouch to prevent stroke in atrial fibrillation
This study tests a device and procedure to close off a small pouch in the heart (left atrial appendage) where blood clots can form in people with atrial fibrillation. The goal is to reduce the risk of stroke, possibly lowering the need for long-term blood thinners.
PragueAges 18 years+ - NCT06207552RecruitingEarly Phase 1
Gene therapy study for children with Fabry disease
This study tests a new gene therapy for children aged 7 to 17 with Fabry disease. The treatment aims to fix the faulty gene that causes the condition, which may help reduce symptoms and prevent organ damage.
ShanghaiAges 7–18 - NCT06472986Recruiting
Activity-based therapy with spinal stimulation for spinal cord injury
This study tests whether combining activity-based therapy (exercises to improve arm and hand function) with a mild electrical stimulation on the skin of your back can help people with chronic neck-level spinal cord injury regain more arm and hand movement.
Toronto, OntarioAges 18 years+ - NCT07815119Recruiting
Comparing two heart imaging methods before a stroke-prevention procedure
This study compares two imaging methods (TEE and CCTA) used before a procedure to close a small pouch in the heart, which helps prevent strokes in people with atrial fibrillation. Participants will be randomly assigned to one method, and both groups will be checked after 3 months to see which imaging works better.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT07809269Recruiting
Healthy lifestyle support after stroke
This study tests a program to help people who have had a stroke adopt healthier habits, like being more active, eating better, quitting smoking, cutting down on alcohol, taking medications as prescribed, or managing stress and mood.
Belo Horizonte, Minas GeraisAges 18 years+ - NCT07809932Recruiting
Breast artery calcium scan and heart disease risk in women
This study looks at calcium deposits seen in breast arteries during a routine mammogram to see if they can help predict heart disease risk in women aged 55 to 65. It may help doctors find heart risk earlier without extra tests.
Manhasset, New YorkAges 55–65 - NCT07810686Recruiting
Smartphone AI help for reading heart rhythms in the field
This study tests a smartphone app that uses artificial intelligence (AI) to help prehospital care providers like you interpret electrocardiograms (ECGs), which are heart-rhythm recordings. If the app works well, it could help you make faster and more accurate decisions when caring for patients in the field.
Murten/Morat, Canton of FribourgAges 18 years+ - NCT07810621Recruiting
Low cardiac output after heart surgery
This study looks at how well the heart pumps right after bypass surgery and whether a special monitor can help predict problems. It may help doctors support patients better after surgery.
Ankara, AnkaraAges 18 years+ - NCT07815366Enrolling by invitation
Eccentric cycling exercise for healthy adults
This study tests a special kind of exercise bike that works your muscles in a different way (called eccentric cycling) to see if it helps healthy people improve their fitness. You would ride this bike for 3 months, and the study team will check your progress.
Zurich, Canton of ZurichAges Any age - NCT07814157Recruiting
Basel registry study on complex heart artery procedures
This study collects information on patients who have complex heart artery procedures at the University Hospital in Basel, to track how well these treatments work and how safe they are.
Basel, Canton of Basel-CityAges 18 years+ - NCT07813559Recruiting
Using a special PET/CT scan to find blood clots
This study uses a special PET/CT scan to see blood clots in the body. The scan uses a tracer that sticks to a protein on blood clots, which might help doctors find clots that other scans miss.
Hefei, AnhuiAges 18–90 - NCT07813377Recruiting
Blood clotting test to predict outcomes after brain tumor surgery
This study looks at a special blood test (called thromboelastography) that checks how well your blood clots. The goal is to see if this test can predict how the surgery goes and whether you might get a blood clot after surgery. If you join, the test will be done before and after your brain surgery, and you will be monitored for any blood clot complications.
BarcelonaAges 18 years+ - NCT07809321Enrolling by invitation
Beta-alanine effects on performance in female rugby players
This study tests whether a daily supplement called beta-alanine can improve muscle performance and heart health in female rugby players. It might help you play better and recover faster.
Madrid, MadridAges 18–40 - NCT07809347Recruiting
Factors linked to slow heart rate after pulsed field ablation
This study looks at why some people have a slower heart rate after a heart procedure called pulmonary vein isolation using pulsed field ablation (PFA). It aims to find out what factors might make this more likely, which could help doctors predict and manage it better.
Wroclaw, Lower Silesian VoivodeshipAges 18 years+ - NCT07817290Recruiting
Food supplement for heart and blood sugar health in older adults
This study tests a specially designed food (a nutraceutical) to see if it can help improve heart health and blood sugar control in older adults. If you are 65 or older, have heart disease and mild diabetes or prediabetes, you might be able to join and potentially benefit from this simple dietary approach.
NovaraAges 65 years+ - NCT07810959Recruiting
Hormone therapy effects on breast and blood vessels in menopause
This study looks at how menopausal hormone therapy (medicines that replace hormones your body no longer makes) affects your breasts and blood vessels. If you join, you'll be followed for a year to see how the treatment works for your symptoms and how it impacts your health.
BursaAges 45–60 - NCT07814079Recruiting
Targeted ablation for ventricular tachycardia
This study tests a targeted approach to treat ventricular tachycardia (a fast, abnormal heart rhythm) by finding and destroying the specific scar tissue in the heart that causes it. The goal is to improve the success of the standard ablation procedure.
Valhalla, New YorkAges 18 years+ - NCT07814612Recruiting
Guided pacing for heart failure with left bundle branch block
This study tests a new way to place a pacemaker lead inside the heart to help it beat more effectively, aiming to improve heart function and symptoms in people with heart failure and a specific electrical problem (left bundle branch block). If you meet the criteria, this could be an option to discuss with your heart doctor.
Nanchang, JiangxiAges 18–80 - NCT06001073Recruiting
Heart and brain disease health prediction study
This study uses advanced health data to predict how heart and brain conditions may progress. It aims to help doctors provide better care for people with these diseases.
Xi'an, ShaanxiAges 3–80
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,609 recruiting cardiology studies from the U.S. registry right now, out of 14,617 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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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.