Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,989 recruiting studies in this area right now.
By phase
- Not applicable7,969
- Phase 2481
- Phase 4481
- Phase 3447
- Phase 1361
- Phase 1/Phase 2163
- Phase 2/Phase 387
Top conditions
- Stroke845
- Heart Failure564
- Hypertension400
- Cardiovascular Diseases389
- Coronary Artery Disease370
- Multiple Myeloma332
- Atrial Fibrillation267
- Ischemic Stroke200
- Atrial Fibrillation (AF)141
- Acute Ischemic Stroke139
- Pulmonary Hypertension100
- Myocardial Infarction99
- Congenital Heart Disease86
- Stroke, Ischemic85
- Peripheral Arterial Disease83
- Acute Coronary Syndrome82
- Obesity80
- Aortic Valve Stenosis79
Leading sponsors
- Mayo Clinic94
- 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
- Maryland120
- Minnesota120
- Illinois119
- Texas118
Recruiting studies9,986 total
- NCT05999188Recruiting
Aortic dissection study in China
This study looks at the features and outcomes of aortic dissection in Chinese patients. It aims to better understand the condition and improve care.
Xi'an, ShaanxiAges 18–80 - NCT05999318Recruiting
Brain stimulation for language recovery after stroke
This study tests a non-invasive brain stimulation method (using magnetic pulses) to help people recover language after a left-side stroke. If you have aphasia from a recent first stroke, this treatment might boost your recovery.
ChangchunAges 35–75 - NCT05999851Recruiting
Maternal blood vessel health in pregnancy
This study looks at how well your blood vessels work during pregnancy to help predict high blood pressure disorders. If you join, you will have extra monitoring and blood tests.
BolognaAges 18–65 - NCT06000904Recruiting
Turning ability after stroke study
This study looks at how people who have had a stroke perform turning movements, to help improve rehabilitation. You may be eligible if you had a single stroke at least six months ago and can walk with some help.
TaipeiAges 18 years+ - 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 - NCT06000943Recruiting
Bleeding and clot risk after heart valve procedure
This study looks at patients who had a TAVR procedure (a new valve put in the heart) to understand their risk of bleeding or clots over the next year. It tracks changes in blood thinner medications at 1 month, 90 days, and 1 year to help doctors personalize care.
AalstAges 18 years+ - NCT06001489Recruiting
Virtual reality for anxiety before heart surgery
This trial tests whether watching a 360-degree virtual reality video can help reduce anxiety before heart surgery. If you are waiting for elective heart surgery and are at least 18 years old, you may be able to participate.
Amsterdam, North HollandAges 18 years+ - NCT06001736Recruiting
Nerve transfer surgery for arm weakness after stroke
This study tests a surgery called CC7 transfer, where a nerve from your healthy side is moved to help your weaker arm. It is for people whose arm has stopped getting better after a stroke and still has significant weakness.
Lebanon, New HampshireAges 18–65 - NCT06001814Recruiting
Mindfulness program for heart health in older adults with HIV
This study tests whether a mindfulness and behavior change program can help older adults with HIV improve their heart health. It combines phone-based coaching and text messages to reduce stress and manage heart risk factors like high blood pressure and diabetes.
Boston, MassachusettsAges 50 years+ - NCT06001827Recruiting
Study of a wrap to help new dialysis access points heal
This trial tests a special wrap placed around a new arm access point for dialysis (called an AV fistula) to see if it helps the access stay healthy and work better. It is for people who need a new AV fistula for kidney dialysis.
Bullhead City, ArizonaAges 18 years+ - NCT06001918RecruitingPhase 2/Phase 3
Testing a new aneurysm treatment device
This trial tests a new device (Nectero EAST) for treating abdominal aortic aneurysms without major surgery. It may be an option for people with a medium-size aneurysm who have not had prior repair.
Scottsdale, ArizonaAges 21–85 - NCT06003023Recruiting
Physical activity study for teens with congenital heart disease
This study looks at how teens and young adults with moderate to complex congenital heart disease can improve their physical activity. You might be eligible if you're between 15 and 25, have a heart condition, and get care at Nationwide Children's Hospital or Ohio State University.
Columbus, OhioAges 15–25 - NCT06002932Recruiting
Comparing one-stent with drug balloon vs. two-stents for heart artery branches
This study compares two ways to treat a narrowed heart artery where a smaller branch vessel is also blocked. One approach uses a drug-coated balloon on the side branch, while the other places a second stent. The goal is to see which method works better for patients like you.
Suwon, Gyeonggi-doAges 19 years+ - NCT06003855Recruiting
Oxygen-guided walking therapy for leg pain
This study tests if monitoring oxygen levels during supervised walking therapy helps people with leg pain from narrowed arteries. It may improve how far you can walk without pain.
Omaha, NebraskaAges Any age - NCT06004154Recruiting
Imaging follow-up for giant cell arteritis patients
This study follows up patients with giant cell arteritis (Horton's disease) using MRI and ultrasound to see how the disease and treatment affect blood vessels over time. It aims to improve understanding of the condition and your imaging results.
ParisAges 50 years+ - NCT06005233Recruiting
Smartwatch heart monitoring after unexplained stroke
This trial uses a smartwatch to look for hidden atrial fibrillation (an irregular heart rhythm) in people who have had a stroke or TIA with no known cause. It could help find the reason for the stroke and guide treatment to prevent another one.
MunichAges 40 years+ - NCT06007222RecruitingPhase 4
No blood thinners after TAVI: a trial for heart valve patients
This trial is for people who have had a TAVI procedure to replace a narrowed heart valve, and it tests whether it is safe to skip blood thinners afterward. The goal is to find the best way to protect your health without unnecessary medication.
Shinjuku, TokyoAges 20 years+ - NCT06007248Recruiting
Study of inflammation-related coronary artery disease
This study compares two types of coronary artery disease: one linked to inflammation (IR-CAD) and the standard type (AS-CAD). If you have had a heart procedure and were recently hospitalized for worsening chest pain, this study may help doctors understand your condition better.
Beijing, Beijing MunicipalityAges 45–64 - NCT06007872Recruiting
Heart device implant using ultrasound probe inside the heart
This trial studies a procedure to implant a Watchman device using a tiny ultrasound probe placed inside the heart, avoiding a probe in the throat. It may help patients with atrial fibrillation who need to reduce stroke risk.
Cleveland, OhioAges 18 years+ - NCT06007950Recruiting
Time-restricted eating for heart health after a heart attack
This study tests whether limiting your daily eating to a shorter window (time-restricted eating) helps improve weight, heart health, and metabolism in adults who have had a heart attack or similar heart event. It may be a safe and sustainable way to support recovery.
Kuala SelangorAges 18–65 - NCT06008743Recruiting
Robotic and computer rehab for walking after stroke
This study uses robotic equipment and computer modeling to create a personalized rehabilitation program. Researchers are looking for healthy adults and adults who have had a stroke more than 6 months ago to see if these tools can improve walking.
Newark, DelawareAges 18–80 - NCT06009276Recruiting
Gut bacteria, muscle blood flow, and fitness study
This study looks at how the bacteria in your gut affect blood flow to your muscles and your overall fitness. You will provide samples and do some exercise tests to help researchers understand this link.
Charlottesville, VirginiaAges 18 years+ - NCT06009874Recruiting
SGLT2 inhibitor early after heart attack to protect the heart
This study tests whether giving an SGLT2 inhibitor (a diabetes medicine that may also protect the heart) early after a heart attack can help shield the heart from damage. It is for people having a first-time STEMI heart attack who have adequate kidney function and stable blood pressure.
Shibīn al Kawm, MenofiaAges 18–80 - NCT06009315Recruiting
Stroke treatment outcome prediction study
This study looks at patients having a stroke procedure to remove a clot. It aims to predict how well people recover. If you are having this treatment, the study might help doctors understand your likely outcome.
Beijing, Beijing MunicipalityAges 18–100
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,989 recruiting cardiology studies from the U.S. registry right now, out of 15,300 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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- Infections
- Genetic & congenital
- Bones, joints & muscles
- Pain
- Injuries & trauma
- Mouth & dental
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- 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.