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
- NCT07775976Enrolling by invitation
Whole-heart checkup with a wearable heart monitor
This study looks at how well a wearable heart monitor and special software can check the health of your whole heart and assess your risk of future heart problems. It may help doctors create more personalized care plans.
Pasadena, CaliforniaAges 18 years+ - NCT07783087Recruiting
Wound gel for diabetic foot ulcers
This study tests whether a new wound gel helps heal diabetic foot ulcers better than the standard gel. It is for people with mild to moderate foot ulcers who have good blood flow and are not taking certain medications.
Bonheiden, AntwerpAges 18 years+ - NCT06551805Recruiting
Ferumoxytol for better MRI images in atherosclerosis patients
This study tests whether a special iron-based contrast agent called ferumoxytol can improve MRI images of arteries affected by atherosclerosis. It may help doctors see blockages or inflammation more clearly.
Nanjing, JiangsuAges 18 years+ - NCT05491577Recruiting
Diabetes foot nerve disease patients without ulcers
This study looks at what affects changes in quality of life in people with diabetes who have a long-term, wound-free Charcot foot. It may help doctors understand what matters most for day-to-day wellbeing in this condition.
Boulogne-sur-Mer, Pas-de-CalaisAges 18 years+ - NCT06551402RecruitingPhase 3
Dabigatran vs rivaroxaban for cerebral venous thrombosis
This study compares two blood thinners (dabigatran and rivaroxaban) to see which works better for treating a blood clot in the brain's veins. You may be eligible if you have a new diagnosis of this type of stroke and can start treatment within 14 days.
Kafr ash ShaykhAges 18–75 - NCT06553443RecruitingPhase 3
Comparing coated and plain balloons for dialysis access narrowing
This trial tests whether a drug-coated balloon works better than a plain balloon to open up narrowed spots in your dialysis access. If you have a failing AVF with a narrowing that can be treated, this study may help improve your dialysis.
SingaporeAges 21 years+ - NCT05624905Recruiting
Heart procedure registry for people getting angiography and stents
This study is a real-world registry that collects information from people who have a heart artery test (coronary angiography) and may also get a stent procedure (percutaneous coronary intervention). It may help doctors improve how these procedures are done by tracking outcomes and care.
SeoulAges 19 years+ - NCT07777445Recruiting
Oxygen treatment during exercise for lung and pulmonary vascular disease
This study compares breathing normal air versus low-flow liquid oxygen during exercise to see if oxygen helps improve performance in people with conditions affecting the lungs or the blood vessels in the lungs. You would exercise while using a portable oxygen device and then without it to compare the effects.
Zurich, Canton of ZurichAges 18 years+ - NCT07780942Recruiting
Testing a smartwatch for detecting heart attacks in people with chest pain
This study is testing how well a smartwatch can detect a specific type of heart attack (STEMI) in people who come to the hospital with chest pain. It aims to see if the smartwatch's ECG feature is accurate compared to standard hospital tests.
Cartagena, MurciaAges 18 years+ - NCT07780500Recruiting
Using electronic health records to study people with high blood pressure
This study is not testing a new medicine. Instead, it is using electronic health records to better understand people with high blood pressure, with a focus on those recently diagnosed. If you join, you may help researchers learn more about how to improve care for others with high blood pressure.
Oakland, CaliforniaAges 18 years+ - NCT07778823Recruiting
Augmented reality support for CPR in children
This study tests whether augmented reality (a headset that projects images) can guide nurses and technicians during CPR on children. You may be asked to perform chest compressions while using this technology to see if it helps improve performance.
St. Petersburg, FloridaAges 18 years+ - NCT07776444Recruiting
Measuring brain blood flow with light and MRI
This study uses a special light-based device and MRI to measure how blood vessels in the brain respond to changes. It may help researchers better understand blood flow in people with and without sickle cell disease.
St Louis, MissouriAges 6–70 - NCT07775742Recruiting
Exercise programs after heart bypass surgery
This study compares two exercise programs for people who have recovered from heart bypass surgery. One program involves high-intensity interval training, and the other is a home-based rehabilitation program. The goal is to see which program helps improve recovery and overall health.
MadinahAges 55–58 - NCT07783061Recruiting
Study on alcohol reduction to improve heart health
This study tests whether reducing alcohol intake can help lower blood pressure and reduce heart risks in adults who drink above recommended limits. Participants will receive support to cut back on drinking and will be monitored for changes in blood pressure and heart health.
Arlington, TexasAges 26–49 - NCT07778810RecruitingPhase 2
Cannabidiol before seizures in infants with Sturge-Weber syndrome
This study tests whether starting the medication Epidiolex (a purified form of cannabidiol) before any seizures occur can help prevent or delay seizures in infants with Sturge-Weber syndrome.
Baltimore, MarylandAges 1 month–1.5 years - NCT07777406Recruiting
Real-world study of donor stem cell transplant for relapsed/refractory myeloma
This study looks at real-world outcomes in patients who have had a donor stem cell transplant for multiple myeloma that has come back or not responded to treatment. It aims to gather info on how well this approach works in everyday practice.
Chieti, CHAges 18 years+ - NCT07782944Recruiting
CD38 PET scan for multiple myeloma
This study uses a special PET scan that looks for a protein called CD38 on myeloma cells to see if it can better find and track multiple myeloma compared to the standard PET scan. It might help doctors plan your treatment more precisely.
Guilin, GuangxiAges 18 years+ - NCT07776054RecruitingPhase 4
SGLT2 inhibitor after heart shock for atrial fibrillation with heart failure
This study tests whether a diabetes drug called an SGLT2 inhibitor can help keep your heart in a normal rhythm after a procedure to shock it back into rhythm. It is for people with persistent atrial fibrillation and a type of heart failure where the heart is stiff.
Seoul, SeoulAges 19 years+ - NCT07777341Recruiting
Red grape juice and heart health in men
This study tests whether drinking red grape juice every day for a period can improve metabolism in men with coronary artery disease (blocked or narrowed heart arteries). If you have heart disease and are not diabetic, this could be a simple dietary addition to support your heart health.
São Paulo, São PauloAges 46–69 - NCT07777367Recruiting
Exercise with liquid oxygen in chronic lung disease
This study compares how well people with chronic lung diseases perform during exercise when breathing regular air versus when using low-flow liquid oxygen. It aims to see if using liquid oxygen during exercise can improve exercise ability and quality of life.
Zurich, Canton of ZurichAges 18 years+ - NCT07776873RecruitingPhase 3
Clot-busting medicine for stroke symptoms 4.5 to 24 hours
This study tests a clot-busting medicine given through an IV to people who had a stroke caused by a blocked medium-sized blood vessel in the brain, and who can be treated 4.5 to 24 hours after symptoms start. The goal is to see if it improves recovery and reduces disability compared to standard care.
Hefei, AnhuiAges 18 years+ - NCT07777744Recruiting
Study of serious complications during heart rhythm procedure
This study looks at the serious risks of a procedure that treats irregular heartbeats. It aims to understand how often complications happen and what they are, which can help doctors improve safety.
Chicago, IllinoisAges 18 years+ - NCT07783984Recruiting
Comparing two procedures for persistent atrial fibrillation with enlarged left atrium
This study compares two procedures to treat persistent atrial fibrillation in people whose upper left heart chamber is enlarged: catheter ablation (a minimally invasive procedure using a tube through a vein) versus thoracoscopic ablation (a surgical approach using small chest incisions). The goal is to see which method better restores a normal heart rhythm.
Seoul, SeoulAges 19 years+ - NCT07781917Recruiting
Comparison of two treatments for diabetic foot ulcers
This study compares two treatments for diabetic foot ulcers that haven't healed with standard care. It aims to see which treatment is more effective in helping these wounds close.
DhakaAges 18–75
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.
Other specialties
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- Pain
- 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.