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
- NCT06522750Recruiting
Periodic fasting for long COVID in adults
This study tests whether periodic fasting can help adults with long COVID. You may qualify if you are 18-64, have had COVID symptoms for at least 12 weeks, have a normal weight and low iron stores.
EttelbruckAges 18–64 - NCT06523270Recruiting
Advanced imaging biobank study
This study collects medical images (CT and MRI scans) and data from adults who are already having scans at the hospital. It creates a biobank to help researchers learn more about health and disease.
MilanAges 18 years+ - NCT06523335Recruiting
Arm coordination training after stroke using muscle sensing
This study uses a special muscle-sensing device to help people who had a stroke improve arm coordination. You will play movement games that guide you to use muscles more effectively, which may help you regain control.
Houston, TexasAges 40–75 - NCT06523465RecruitingPhase 4
Statin plus amlodipine for primary aldosteronism
This trial tests whether combining a statin (usually for cholesterol) with amlodipine (a blood pressure medication) can better treat primary aldosteronism, a hormonal condition that causes high blood pressure. If you have this condition, this study may offer a new way to manage it.
Chongqing, Chongqing MunicipalityAges 18–70 - NCT06523582Recruiting
Genetic study of neuroendocrine tumors in Mexican patients
This study aims to find genetic causes of neuroendocrine tumors in Mexican patients. By understanding your DNA, researchers hope to improve diagnosis and treatment for people with these rare conditions.
Mexico City, Mexico CityAges 18 years+ - NCT06523959RecruitingPhase 4
Blood clot prevention in abdominal or pelvic surgery
This trial tests whether a medication called apixaban (a blood thinner) can safely prevent blood clots after abdominal or pelvic surgery. It is for people who have a moderate risk of clots and bleeding, and who are not taking other blood thinners.
HelsinkiAges 18 years+ - NCT06524180Recruiting
Can telehealth replace doctor visits for controlled high blood pressure?
This trial tests if a telemedicine system can safely replace face-to-face doctor appointments to keep your blood pressure under control. If you have high blood pressure that is well-managed with medication, this study may help you manage your health from home.
Hong Kong, Hong KongAges 18–80 - NCT06524622Recruiting
Ultrasound and pressure test for sepsis in the ICU
This study tests whether a special ultrasound exam (VExUS) combined with a standard pressure measurement (CVP) can better predict outcomes for people with sepsis in the ICU. The goal is to see if these tools help doctors make better treatment decisions.
Yibin, SichuanAges 18–100 - NCT06525012Recruiting
Study on recovery after brain aneurysm bleeding in Martinique
This study looks at what happens to people who are hospitalized in Martinique after a brain aneurysm bursts. The goal is to understand recovery and outcomes better.
Fort-de-FranceAges 18 years+ - NCT06525168RecruitingPhase 1
Safety study of DA414 in healthy volunteers
This trial tests a new medicine called DA414 in healthy people to see if it is safe and how the body processes it. It may help researchers understand the right dose for future studies.
Wuhan, Hubei.ChinaAges 18–45 - NCT06525987Recruiting
Exercise coaching for brain health after small stroke
This study tests whether a home-based exercise program, guided by a coach over video calls, can help improve brain function and connectivity in people who have had a small stroke. The program is designed for people aged 60 and older with a history of lacunar stroke who are not very active but otherwise have minimal disability.
Avezzano, L'AquilaAges 60 years+ - NCT06526013Recruiting
Cholesterol self-testing after a heart attack
This trial tests if people who recently had a heart attack can use a home cholesterol test to check if their LDL cholesterol is on target. The goal is to help you manage your cholesterol better and lower your risk of another heart problem.
Leipzig, SaxonyAges 18 years+ - NCT06526117RecruitingPhase 4
Stroke Prevention in Nigeria 2 Trial
This trial tests whether giving hydroxyurea (a medicine that helps prevent strokes) to children with sickle cell disease who have high-risk blood flow in their brains can stop strokes from happening. It's for kids in Nigeria who are at the peak age for stroke risk (5–12 years old).
KanoAges 5–12 - NCT06526195Recruiting
A study of CardioMEMS and HeartMate 3 for advanced heart failure
This trial tests if a combination of a tiny lung-artery pressure sensor (CardioMEMS) and a mechanical heart pump (HeartMate 3) is safe and effective for people with advanced heart failure. If you qualify, you'll either get the heart pump plus standard medical therapy, or continue with standard therapy alone and have your pressure monitored remotely.
Phoenix, ArizonaAges 18 years+ - NCT06526273Recruiting
PILI 'Āina Household Program
This study is for Native Hawaiian adults living in homestead communities who are overweight or have health conditions like diabetes, high blood pressure, or high cholesterol. It looks at a household-based program to help you and your family make healthier lifestyle changes together.
Honolulu, HawaiiAges 18 years+ - NCT06526676Recruiting
Custom stent grafts for aortic aneurysms in high-risk patients
This study tests custom-fitted stent grafts for patients with aortic aneurysms who are not good candidates for open surgery or standard stent grafts. The grafts are modified by the surgeon during the procedure to match your specific anatomy.
Los Angeles, CaliforniaAges 18 years+ - NCT06526533RecruitingPhase 3
Red blood cell transfusion thresholds for ECMO patients
This trial is testing whether a higher or lower threshold for red blood cell transfusions is better for people on ECMO (a heart-lung machine). It aims to find the safest way to manage transfusions during ECMO treatment.
Camperdown, New South WalesAges Any age - NCT06526650Recruiting
Cooking demos for Native Hawaiian adults with diabetes or heart risks
This trial tests if cooking demonstrations can help Native Hawaiian adults with conditions like type 2 diabetes, pre-diabetes, high blood pressure, or high cholesterol improve their health. You'd learn healthy cooking and be encouraged to do moderate activity like brisk walking.
Honolulu, HawaiiAges 18 years+ - NCT06526936Recruiting
Foot care training for diabetic dialysis patients
This study tests whether foot care training helps diabetic hemodialysis patients improve how they care for their feet. If you have diabetes and are on dialysis, this training may help prevent foot problems.
Beylikduzu, Cumhuriyet MahallesiAges 18 years+ - NCT06527105Recruiting
Sleep quality and recovery after heart surgery
This study looks at how your sleep affects recovery after planned heart surgery. Researchers want to see if better sleep leads to better outcomes, so they will track your sleep quality and health after the operation.
Kochi, KeralaAges 18–80 - NCT06527248Recruiting
Nitrate, exercise and blood vessel health in midlife women
This study looks at whether a natural compound in vegetables (called nitrate) combined with exercise can help improve blood vessel health in women after menopause. It may be a good fit if you are 45-65, do not exercise much, and have normal or mildly high blood pressure.
Vienna, State of ViennaAges 45–65 - NCT06527742Recruiting
Body health and recovery during rehabilitation
This study looks at how body composition, frailty, and function change during rehabilitation. It may help understand recovery patterns.
Singapore, SingaporeAges 21 years+ - NCT06527807Recruiting
Stroke in pregnancy and after birth study
This study looks at how stroke affects women who are pregnant or have recently given birth, and how it may affect their babies. It aims to understand the risks and outcomes for both mothers and children.
Beijing, Beijing MunicipalityAges Any age - NCT06527963Recruiting
Balloon types for fistula narrowing in dialysis patients
This trial compares two types of balloons used to open up narrowed areas in the blood vessels of dialysis patients. It aims to find which balloon works better for keeping the fistula working well.
Zhengzhou, HenanAges 18–75
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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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.