Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,982 recruiting studies in this area right now.
By phase
- Not applicable7,962
- Phase 2481
- Phase 4481
- Phase 3447
- Phase 1361
- Phase 1/Phase 2163
- Phase 2/Phase 387
Top conditions
- Stroke844
- Heart Failure566
- 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
- California465
- Alabama197
- Massachusetts182
- Arizona173
- New York162
- Florida144
- Maryland120
- Minnesota120
- Illinois118
- Texas118
Recruiting studies9,979 total
- NCT03713866Recruiting
Imaging heart scar during ablation for certain fast heart rhythms
This trial uses special heart imaging during a catheter ablation to better map scar tissue that may be causing a dangerous fast heart rhythm (monomorphic ventricular tachycardia). It may help doctors target the problem more accurately during the procedure.
Halifax, Nova ScotiaAges 18–85 - NCT03713268Recruiting
Using a scan to guide eye surgery in real time
This trial tests whether a special eye scan (OCT) can help guide eye surgery during the operation. It may improve how surgeons see and target the exact eye structures they need to treat.
Durham, North CarolinaAges 4 weeks+ - NCT03717844Recruiting
Registry for adults with plasma cell disorders
This study is a registry that collects information about adults with plasma cell disorders (conditions involving abnormal antibody-producing cells). It may help researchers understand these diseases better and improve future care by tracking patients over time.
Chapel Hill, North CarolinaAges 18 years+ - NCT03718364Recruiting
Atrial fibrillation ablation registry study in Switzerland
This study records information from people undergoing a procedure to treat atrial fibrillation called pulmonary vein isolation. It helps doctors understand how the procedure is used and what outcomes to expect.
BaselAges 18 years+ - NCT03720522Recruiting
Study brain-heart signals in acute stroke using MRI
This study looks at how the brain and heart interact right after an acute ischemic stroke. It may help doctors better understand what happens in the first hours of stroke and improve monitoring or future treatments.
Bern, Canton of BernAges 18–86 - NCT03728049Recruiting
Blood test during TAVI to improve heart valve procedure outcomes
This study checks whether a quick bedside blood test helps guide care during a minimally invasive TAVI procedure (a new valve put in without open-heart surgery). It may improve safety and outcomes by helping the team manage bleeding-related decisions in real time.
Clermont-FerrandAges 18 years+ - NCT03726047Recruiting
Exercise and training to improve walking after chronic stroke
This study tests whether exercise plus motor learning training can improve walking and movement after a stroke that happened more than 6 months ago. You may be a good candidate if you can walk on your own and your stroke-related brain injury is not mainly in the cerebellum.
Newark, DelawareAges 18–85 - NCT03728166Recruiting
Computer guidance to prevent blood clots after hospital stay
This trial tests a computerized tool that helps doctors decide who needs prevention medicines to lower the risk of blood clots after a hospital stay. It may help reduce preventable clotting risk for people who are less mobile and have added risk factors.
Boston, MassachusettsAges 40 years+ - NCT03729232Recruiting
Japanese registry for people who had catheter ablation
This is a national registry that collects health information from people in Japan who received catheter ablation. It may help doctors and researchers understand outcomes and improve future care.
Suita, OsakaAges Any age - NCT03731000Recruiting
Testing a glue-like treatment for abnormal brain vessel leaks in children
This trial studies a device that delivers a special “embolic” material (often described as glue) to treat a type of abnormal connection in the brain’s blood vessels (dAVF). It may help by blocking the leaking or risky blood flow, and it will be compared against how doctors handle eligible cases with other embolic materials.
New York, New YorkAges Up to 21 years - NCT03732612Recruiting
Studies inflammation markers around upcoming vascular surgery
This study looks at signs of “inflammation” (your body’s immune response) in people who are scheduled for vascular surgery. It may help researchers understand what’s happening in blood vessel disease and improve future care.
Gothenburg, VastragotalandAges 18 years+ - NCT03737786Recruiting
Sedation with collateral support for stroke clot removal
This trial tests a specific sedation approach, along with support during the procedure, for people having emergency clot removal (mechanical thrombectomy) for a certain type of acute ischemic stroke. It may help make the procedure safer and more effective by improving how patients are managed during endovascular treatment.
Los Angeles, CaliforniaAges 18–110 - NCT03749980Recruiting
Study following people with von Hippel-Lindau (VHL)
This study follows people who have von Hippel-Lindau (VHL) over time to better understand how the condition changes. It may help doctors plan future treatments by collecting long-term health information.
Boston, MassachusettsAges Any age - NCT03752775Recruiting
Robotic arm sleeve for stroke recovery
This trial tests a wearable robotic device that helps move your arm after a stroke. It is designed for people with significant arm weakness to improve their upper limb function.
Hong KongAges 18–70 - NCT03753555RecruitingPhase 4
High-intensity statin treatment for certain stroke artery plaque cases
This trial tests whether a higher-dose statin can help after an ischemic stroke in people who have specific plaque patterns in brain blood vessels. It may help lower the risk of another stroke by targeting the artery plaque process.
ShenyangAges 18–80 - NCT03753412Recruiting
Rehab program for adults after ICU recovery on ECMO
This trial looks at a recovery and rehabilitation approach for adults who were very sick and needed a machine called ECMO to support breathing and heart function. It may help people regain strength and function after a severe ICU illness.
LondonAges 18 years+ - NCT03752840Recruiting
Community eye-worker program in Nepal
This trial tests a village-based approach to bring eye care closer to older community members. If you live in the right area and are willing to participate, it may help improve access to eye screening and services.
San Francisco, CaliforniaAges 60 years+ - NCT03755726Recruiting
Study of care for dangerously high blood pressure
This trial looks at a health-care plan for people with malignant hypertension (very high blood pressure causing emergency eye and organ damage). It may help doctors better organize treatment and follow-up after this high-risk diagnosis.
AnnecyAges 18 years+ - NCT03761108RecruitingPhase 1/Phase 2
Study of linvoseltamab for hard-to-treat multiple myeloma
This trial tests linvoseltamab, an experimental antibody medicine, in adults whose multiple myeloma has come back or does not respond to treatment. It may help some people by targeting myeloma cells after multiple prior therapies have failed.
Miami, FloridaAges 18 years+ - NCT03762499Recruiting
Personalized blood pressure care for young adults using heart ultrasound
This study looks at a personalized approach to managing high blood pressure in adults aged 18–40, using heart ultrasound information along with regular clinical checkups. It may help clinicians tailor treatment to each person’s heart-related findings.
OxfordAges 18–40 - NCT03772275Recruiting
Tests new blood markers in chronic heart failure patients
This study looks at whether certain new blood tests (biomarkers) can help doctors learn more about chronic heart failure. You might be asked for blood samples and health information, and the results could improve how heart failure is understood in the future.
Tanta, ElgharbiaAges 18–75 - NCT03775954Recruiting
Fetal heart testing in high-risk pregnancies after baby loss
This study checks unborn babies’ heart signals using special scans during pregnancy and then checks the baby’s heart shortly after birth. It may help researchers understand why certain high-risk pregnancies can lead to fetal demise and improve care.
Madison, WisconsinAges 18 years+ - NCT03781492Recruiting
Treatment study for stable angina symptoms
This study looks at managing and treating stable angina, a type of chest discomfort that happens predictably with activity or stress. It may help find better ways to control symptoms and improve daily life, but you must not have certain recent heart events to join.
Zabrze, Silesian VoivodeshipAges 18 years+ - NCT03781531Recruiting
Blood tests to find hidden cancer after a blood clot
This study looks for “biomarkers,” or blood signs, that may help detect hidden (occult) cancer in people who recently had a blood clot in the leg or a lung clot. It may help doctors catch cancer earlier by improving detection after venous thromboembolism.
StockholmAges 18 years+
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,982 recruiting cardiology studies from the U.S. registry right now, out of 15,268 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.