Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 10,008 recruiting studies in this area right now.
By phase
- Not applicable7,984
- Phase 2484
- Phase 4481
- Phase 3449
- Phase 1360
- Phase 1/Phase 2163
- Phase 2/Phase 387
Top conditions
- Stroke846
- Heart Failure563
- Hypertension400
- Cardiovascular Diseases389
- Coronary Artery Disease371
- Multiple Myeloma331
- Atrial Fibrillation271
- Ischemic Stroke200
- Atrial Fibrillation (AF)143
- Acute Ischemic Stroke141
- Pulmonary Hypertension101
- Myocardial Infarction99
- Congenital Heart Disease86
- Stroke, Ischemic84
- 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 Hospital53
- 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
- California467
- Alabama197
- Massachusetts182
- Arizona174
- New York163
- Florida143
- Minnesota121
- Maryland120
- Illinois119
- Texas118
Recruiting studies10,005 total
- NCT06770062Recruiting
How the heart changes after mitral valve repair surgery
This study at Mayo Clinic uses MRI and other tests to see how the heart's main pumping chamber changes shape after robot-assisted mitral valve repair surgery for severe mitral regurgitation. It may help doctors better understand how patients recover.
Rochester, MinnesotaAges 18 years+ - NCT06770374Recruiting
Zinc oxide adhesive for IV line securement
This trial tests a special adhesive dressing made with zinc oxide to keep your IV line secure. It looks at whether this dressing helps prevent the line from moving, which could reduce complications.
Lleida, CataloniaAges 18 years+ - NCT06770933RecruitingPhase 2
VX-01 pill for diabetic eye disease study
This trial tests if an oral medication called VX-01 can help people with diabetic eye disease (non-proliferative diabetic retinopathy) that is moderate to severe but not yet at the most advanced stage. It may be an option if you have type 1 or type 2 diabetes and have not had certain prior eye treatments.
Beverly Hills, CaliforniaAges 18 years+ - NCT06771700Recruiting
S-ICD implantation study for heart patients
This study looks at implanting a type of ICD (implantable cardioverter-defibrillator) called a subcutaneous ICD, or S-ICD, which goes under the skin instead of in the heart. It is designed to help see how well this works in standard care.
Cologne, North Rhine-WestphaliaAges Any age - NCT06771687Recruiting
High-intensity interval training for heart conduit patients
This study tests whether high-intensity interval training (short bursts of intense exercise) can improve heart function and fitness in people who have a surgical tube (conduit) connecting their right ventricle to their pulmonary artery. It aims to find a safe and effective exercise program for those with this type of congenital heart condition.
Nijmegen, GelderlandAges 12–45 - NCT06772038Recruiting
Fluid response and vein health during fluid bolus in ICU
This trial looks at how well your body responds to extra fluids given through an IV, and whether it helps your veins. It is for people in the ICU who already have heart monitoring in place.
Guangzhou, GuangdongAges 18–99 - NCT06772194Recruiting
Taiwan Recovery After Stroke Study
This study looks at how people recover after a stroke. Researchers will check your thinking, memory, and daily function over a year to learn more about recovery patterns and help design better treatments.
TaipeiAges 18 years+ - NCT06772493Recruiting
First test of a new ICE ultrasound tool in people
This study is testing a new type of ICE ultrasound tool during heart procedures. The goal is to see how well it works in real people.
Jonesboro, ArkansasAges 18 years+ - NCT06772740Recruiting
Middle meningeal artery embolization for chronic subdural hematoma
This trial tests a procedure called middle meningeal artery embolization, which aims to stop the bleeding and reduce the fluid buildup from a chronic subdural hematoma. It may be an option for patients who have a hematoma at least 10mm thick and one or more risk factors such as older age, blood thinners, diabetes, or certain scan features.
Nishinomiya, HyōgoAges 18 years+ - NCT06772922Recruiting
Pulmonary and heart rehab program testing combined exercise
This trial studies a combined lung and heart rehabilitation program for people with lung diseases (like COPD, asthma, or fibrosis) or heart conditions (like heart attack, bypass surgery, or heart failure). The goal is to see if a special exercise program can improve your health and quality of life.
Campinas, São PauloAges 18 years+ - NCT06773169Recruiting
Testing an app for self-managing chronic conditions
This study tests a smartphone or computer app designed to help people with long-term health conditions like arthritis, heart disease, or stroke manage their own recovery. The goal is to see if using the app improves daily living and reduces disability.
Hamilton, OntarioAges 44–75 - NCT06773364RecruitingPhase 3
Early levetiracetam and head position for stroke
This trial tests if starting a seizure medication called levetiracetam early in the ambulance, along with a specific head position, can help people having a stroke. It is for adults who show clear stroke signs within the last 2 hours and do not have other major health problems.
Suzhou, AnhuiAges 18 years+ - NCT06773611Recruiting
Heart failure and transplant registry study
This study is creating a registry to track and learn from people with advanced heart failure or who have had a heart transplant. By joining, you help researchers better understand these conditions and improve care.
BolognaAges 18 years+ - NCT06774014Recruiting
Heart failure and diabetes: cell study
This study looks at how cells talk to each other in people who have both diabetes and heart failure. It may help doctors understand these conditions better.
Leeds, West YorkshireAges 18 years+ - NCT06774586Recruiting
Study of blood vessel health in children
This study examines the health of blood vessels in children ages 6 to 17, using a non-invasive device called Vicorder to measure vessel stiffness. It aims to understand how blood vessel walls work in youth.
BolognaAges 6–17 - NCT06775028Recruiting
Integrated care for older adults with atrial fibrillation
This trial is testing a new approach to care for older adults with atrial fibrillation (an irregular heartbeat) who also have other health conditions. It aims to see if a more integrated, team-based care plan helps improve their overall health and quality of life.
HaskovoAges 65 years+ - NCT06775457Recruiting
Genetic study of HERVs in children with new inflammation
This study looks at certain genes (called HERVs) in children with new inflammatory conditions like Kawasaki disease, COVID-19, or other infections. It aims to learn more about how these genes might be involved in the body's response to illness.
Carpi, ModenaAges Up to 18 years - NCT06775639Recruiting
Can we skip a heart artery test before surgery?
This study looks at whether people with adult congenital heart disease can skip a pre-surgery artery test (coronary angiography) if they already had a CT scan. If you qualify, you might help doctors find safer, simpler ways to prepare for heart surgery.
BolognaAges 18 years+ - NCT06775782Recruiting
Remote conditioning for moderate stroke from large artery blockage
This trial tests whether a non-invasive arm cuff treatment (remote ischemic conditioning) can help people recover from a moderate stroke caused by a blockage in a major artery. You must start the treatment within 48 hours of your first symptoms.
Xi'an, ShaanxiAges 18–85 - NCT06775821Recruiting
Lung cancer and abdominal aneurysm screening study
This study looks at how common abdominal aortic aneurysms (bulges in the belly's main artery) are in people with primary lung cancer. It involves a simple imaging test to check for this condition.
Kunming, YunnanAges 20–90 - NCT06775912RecruitingEarly Phase 1
CAR-T cell therapy for autoimmune diseases
This trial tests a new CAR-T cell therapy that targets two proteins (CD19 and BCMA) on immune cells. It's designed for people with certain autoimmune diseases like lupus, scleroderma, vasculitis, myositis, or Sjögren's syndrome that are not controlled by standard treatments.
Lianyungang, JiangusAges 18–70 - NCT06776133Recruiting
Predicting heart pressure from vein size in children
This study looks at a possible link between the size of a large vein (the inferior vena cava) and the pressure in the right side of the heart in children. If the link is strong, doctors might one day use vein size to estimate heart pressure without more invasive tests.
Bologna, BolognaAges Up to 18 years - NCT06776159Recruiting
Standardizing blood thinner shots for heart patients
This study tests whether a standard way of giving blood thinner shots (LMWH) to people with heart disease in the cardiac care unit improves care. It is for Chinese patients who are awake and can make their own decisions.
Hong KongAges 18 years+ - NCT06776419Recruiting
Heart inflammation and scarring in Fabry disease
This study uses advanced heart scans (PET/CT and MRI) to look at inflammation, blood vessel health, and scarring in the hearts of people with Fabry disease. It aims to better understand how Fabry disease affects the heart and find new ways to track or treat these changes.
CopenhagenAges 18 years+
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 10,008 recruiting cardiology studies from the U.S. registry right now, out of 15,355 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
- Cancer
- Brain & nervous system
- Hormones & metabolism
- Mental health
- Digestive system
- Lungs & breathing
- Immune system & allergy
- Women’s health & pregnancy
- Skin
- Blood & lymphatic
- Kidney & urinary
- 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.