Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 10,001 recruiting studies in this area right now.
By phase
- Not applicable7,980
- Phase 2482
- Phase 4481
- Phase 3447
- Phase 1360
- Phase 1/Phase 2163
- Phase 2/Phase 388
Top conditions
- Stroke846
- Heart Failure564
- Hypertension400
- Cardiovascular Diseases389
- Coronary Artery Disease370
- Multiple Myeloma332
- Atrial Fibrillation268
- Ischemic Stroke200
- Atrial Fibrillation (AF)142
- Acute Ischemic Stroke139
- Pulmonary Hypertension101
- Myocardial Infarction99
- Congenital Heart Disease86
- Stroke, Ischemic85
- Peripheral Arterial Disease83
- Acute Coronary Syndrome82
- Obesity80
- Aortic Valve Stenosis79
Leading sponsors
- Mayo Clinic95
- Assistance Publique - Hôpitaux de Paris91
- National Taiwan University Hospital74
- China National Center for Cardiovascular Diseases59
- Beijing Tiantan Hospital52
- Riphah International University51
- Second Affiliated Hospital, School of Medicine, Zhejiang University51
- Massachusetts General Hospital50
- Insel Gruppe AG, University Hospital Bern49
- Johns Hopkins University47
Where studies are running
- California466
- Alabama197
- Massachusetts182
- Arizona173
- New York162
- Florida144
- Minnesota121
- Illinois120
- Maryland120
- Texas118
Recruiting studies9,998 total
- NCT06381271Recruiting
TAVR for severe aortic valve regurgitation
This trial tests a procedure called TAVR to replace the aortic valve in people with severe aortic regurgitation (a leaky valve). It may help you if you have this condition and prefer a less invasive option than open-heart surgery.
Xi'an, ShannxiAges 18 years+ - NCT06381427Recruiting
Improving care for older heart patients before surgery
This trial studies whether special care planning before non-cardiac surgery can improve outcomes for older adults with signs of heart stress. If you are 65 or older and scheduled for a moderate- to high-risk surgery, you may be able to join.
GiessenAges 65 years+ - NCT06381778Recruiting
Taiwan registry study on hypertrophic cardiomyopathy
This study creates a registry (a detailed record) for people with hypertrophic cardiomyopathy, a condition where the heart muscle is thicker than normal. It aims to learn more about the condition over time.
New Taipei CityAges 20 years+ - NCT06383013RecruitingPhase 2
BB-101 for diabetic foot and leg ulcers
This trial tests a new medicine called BB-101 for diabetic ulcers on the lower leg or foot. The goal is to see if it helps these wounds heal faster.
TainanAges 20 years+ - NCT06383208Recruiting
Heart and kidney risk study for people with both diseases
This study looks at how well we can predict heart and kidney problems in people who have both coronary heart disease and chronic kidney disease. By analyzing certain markers, researchers hope to create a better risk assessment tool.
Beijing, Beijing MunicipalityAges 18–80 - NCT06383182Recruiting
Study of blood markers after stroke artery treatment
This study looks at how certain proteins in the blood change after a procedure to remove a large blockage in a brain artery. The goal is to better understand recovery after stroke treatment.
ShenyangAges 18–80 - NCT06383975Recruiting
Two new treatments for AF that returned after first procedure
This trial tests two new treatments for persistent atrial fibrillation that came back after an initial procedure. One uses a targeted chemical injection, the other uses a special energy field to re-isolate the veins involved.
BrugesAges 18 years+ - NCT06384846Recruiting
AI predicts heart attacks using white blood cells
This study tests whether an artificial intelligence tool can accurately predict a heart attack (acute coronary syndrome) by looking at the properties of your white blood cells. If successful, it could help doctors diagnose heart attacks faster from a simple blood sample.
Graz, Styria / SteiermarkAges 18 years+ - NCT06384963Recruiting
Pacing after bypass for heart failure patients
This trial tests a special pacing therapy that uses your natural breathing rhythm to improve heart function after coronary artery bypass surgery. It may help people with weak heart muscles recover better after surgery.
Adelaide, South AustraliaAges 22 years+ - 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 - NCT06385353Recruiting
First leg clot size and long-term risk
This study looks at how the size and location of a first-time leg blood clot affects the risk of long-term problems like chronic pain or swelling. You may join if you have a new, symptomatic clot in one leg and haven't had one before.
Vichy, AllierAges 18 years+ - NCT06385379Recruiting
Aortic arch repair with new stent system
This trial tests a new stent graft system (like a fabric tube on a metal cage) that is placed inside the aorta through a blood vessel in your leg. It is designed to fix problems in the aortic arch without open heart surgery, for people who are at high risk for surgery. The goal is to see how safe and effective it is over time.
BeijingAges 18–80 - NCT06385652RecruitingEarly Phase 1
PET Imaging of Multiple Myeloma with 68Ga-NB381
This study uses a special PET scan to look for multiple myeloma in your body. It may help doctors see where the disease is and how active it is.
Beijing, Beijing MunicipalityAges 18–90 - NCT06385834Recruiting
Morning vs Evening Exercise After Heart Attack
This study compares the effects of doing aerobic exercise in the morning versus the evening for people who recently had a heart attack. It aims to see if timing of exercise can help the heart recover and function better.
ShanghaiAges 17–75 - NCT06386185Recruiting
Using heart tests to better detect pulmonary hypertension
This trial uses data from standard heart tests to develop a better way to detect pulmonary hypertension, a condition of high blood pressure in the lungs. It aims to help doctors diagnose this condition earlier and more accurately.
Bath, BanesAges 18 years+ - NCT06386107Recruiting
Bleeding risk in people with cancer and blood clots on blood thinners
This study looks at how well blood thinners work in people with cancer and a recent blood clot. It measures the risk of bleeding by checking certain blood clotting factors.
Clermont-FerrandAges 18 years+ - NCT06386874Recruiting
Magnetic field therapy for arm recovery after stroke
This study tests a new magnetic device applied to the head to help improve arm function after a stroke. You will use the device while doing exercises, and a caregiver will support you with a mobile app and video calls.
Downey, CaliforniaAges 22–80 - NCT06386510Recruiting
Nerve stimulation to improve arm function after stroke
This trial tests whether stimulating certain nerves in the head can help improve arm movement and brain recovery in people who had a stroke more than 6 months ago. It may be an option if you still have some arm movement but are not currently in rehab.
Laval, QuebecAges 18–85 - NCT06387225Recruiting
Study on brain recovery after cardiac arrest
This study is trying to find better ways to predict recovery in people who had a cardiac arrest outside the hospital and are still unconscious in the intensive care unit. It may help doctors give more accurate information to families.
La Roche-sur-YonAges 18 years+ - NCT06387446Recruiting
Donated heart valve transplant for children and young adults
This study is testing a new way to replace a damaged heart valve using a donated valve (allograft) that may last longer and work better for children and young adults. It may be a good option if you need a new valve and have few other choices.
Boston, MassachusettsAges 4 weeks–50 years - NCT06387693Recruiting
AI for chest pain without blocked arteries
This study uses artificial intelligence to better understand chest pain in people without blocked heart arteries. It may help find the cause of your symptoms and guide your treatment.
UtrechtAges 18 years+ - NCT06387875Recruiting
Community health study in Qianwan, Ningbo
This study is creating a health database of people living in Qianwan New District, Ningbo. Researchers will ask about your health and lifestyle, and follow up over time to learn about community well-being.
ShanghaiAges 18 years+ - NCT06388148Recruiting
Clot removal for very large strokes
This trial tests a procedure to remove a large blood clot in the brain (mechanical thrombectomy) for people who have a very large stroke. It aims to see if removing the clot can improve recovery, even for those with severe strokes.
Hengyang, HunanAges 18 years+ - NCT06388668Recruiting
Lipid testing after a heart attack
This trial looks at cholesterol testing done on the day you are admitted to the hospital after a heart attack. The goal is to learn more about these test results and how they might help guide your care.
Montreal, QuebecAges 18 years+
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 10,001 recruiting cardiology studies from the U.S. registry right now, out of 15,328 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.
Other specialties
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- Immune system & allergy
- Women’s health & pregnancy
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- Infections
- Genetic & congenital
- Bones, joints & muscles
- Pain
- Injuries & trauma
- Mouth & dental
- Eyes & vision
- Ear, nose & throat
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.