Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,610 recruiting studies in this area right now.
By phase
- Not applicable7,634
- Phase 2471
- Phase 4471
- Phase 3437
- Phase 1350
- Phase 1/Phase 2160
- Phase 2/Phase 387
Top conditions
- Stroke796
- Heart Failure534
- Hypertension389
- Cardiovascular Diseases373
- Coronary Artery Disease363
- Multiple Myeloma327
- Atrial Fibrillation259
- Ischemic Stroke190
- Atrial Fibrillation (AF)154
- Acute Ischemic Stroke139
- Pulmonary Hypertension104
- Myocardial Infarction96
- Congenital Heart Disease84
- Peripheral Arterial Disease80
- 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
- California451
- Alabama195
- Arizona181
- Massachusetts173
- New York168
- Florida140
- Texas122
- Maryland118
- Minnesota117
- Illinois111
Recruiting studies9,610 total
- NCT07769281Recruiting
Recovering arm and hand movement after stroke
This study tests a new system called NeuroTechR3 that may help people who have had a stroke regain movement in their arm and hand. It involves training exercises that you can do at home with a computer.
Jacksonville, FloridaAges 18 years+ - NCT07773272Recruiting
Combined heart, kidney, and metabolic care after a heart attack
This study tests a new approach to managing heart, kidney, and metabolic health together after a heart attack or unstable angina. It aims to improve your recovery and reduce future risks.
Heerlen, LimburgAges 18 years+ - NCT07768228RecruitingPhase 2
L-carnitine for healing diabetic foot ulcers
This study tests whether a supplement called L-carnitine can help diabetic foot ulcers heal faster. It is for people with type 2 diabetes who have mild to moderate foot ulcers and neuropathy (nerve damage in the feet).
Cairo, Cairo GovernorateAges 30–75 - NCT07768644Recruiting
Nailfold microscope study for pulmonary hypertension
This study uses a special microscope to look at the tiny blood vessels at the base of your fingernails. It aims to see if these vessels can help doctors understand and monitor pulmonary hypertension, a condition of high blood pressure in the lungs.
Clydebank, West DunbartonshireAges 18 years+ - NCT07768865Recruiting
Artery stiffness in young people with kidney disease
This study looks at how stiff the arteries are in children and young adults with chronic kidney disease (CKD) compared to healthy controls. The results may help doctors better understand heart risks and improve care for young people with kidney problems.
London, Greater LondonAges 10–25 - NCT06566976Recruiting
Exercise before and after stent for PAD
This study tests a program of exercise before and after a stent procedure for people with peripheral artery disease who have leg pain while walking. The goal is to see if this helps improve walking ability and recovery.
Palo Alto, CaliforniaAges 18 years+ - NCT05106062Recruiting
Remote heart monitoring program for defibrillator patients
This trial studies whether using a remote monitoring device for people with certain heart devices improves outcomes and is worth the effort/cost. It looks at results for different patient groups and needs people to actively use the monitoring system.
SeoulAges 19–80 - NCT06567938Recruiting
Heart artery procedure study for people with kidney disease
This trial uses a special ultrasound camera inside the heart's arteries to guide stent placement for people with chronic kidney disease. The goal is to see if this approach improves outcomes compared to standard methods.
Xi'an, ShaanxiAges 18 years+ - NCT06568640Recruiting
Adrenal artery treatment for hard-to-control high blood pressure
This study tests a minimally invasive procedure called superselective adrenal arterial embolization for people whose high blood pressure is hard to control with medications. The goal is to see if this treatment can safely lower blood pressure.
NanchangAges 18 years+ - NCT06567795Recruiting
Monitoring heart risk with a wearable sensor in diabetes
This trial tests a wearable chest sensor (called HEMOTAG) to monitor heart events in people with long-standing Type 2 diabetes who also have heart disease or specific diabetes-related complications. The sensor is worn at home for short periods to catch early signs of heart trouble, aiming to improve personalized care.
West Palm Beach, FloridaAges 40 years+ - NCT06331208Recruiting
Mechanisms of Lung Blood Vessel Problems in Heart Failure
This study looks at how heart failure affects blood vessels in the lungs. If you have heart failure with reduced pumping ability and need a heart catheterization, you may be able to join.
PragueAges 18 years+ - NCT06570460RecruitingPhase 4
Estrogen pills vs. patch for Turner syndrome
This study compares two ways of taking estrogen (pills or a skin patch) in women with Turner syndrome to see which works better over time. It also includes healthy women for comparison.
Aarhus, Aarhus NAges 18–50 - NCT06283420Recruiting
Metabolic Effects of Starting Heart Failure Therapies
This trial looks at how starting new heart failure treatments affects your body's metabolism. It may be an option if you have stable heart failure and haven't taken certain newer medicines before.
PragueAges 18 years+ - NCT06290154Recruiting
Heart health after liver transplant study
This study looks at factors that affect heart health after a liver transplant. It may help doctors better predict and manage heart problems in people with end-stage liver disease who are getting a new liver.
Guangzhou, GuangdongAges 18 years+ - NCT06517537Recruiting
Modified aortic root enlargement for small aortic valves
This trial tests a modified surgical technique for replacing a narrowed aortic valve in people whose valve opening is unusually small. The goal is to help the new valve fit better and work well.
Beijing, Beijing MunicipalityAges 50–70 - NCT06362538Recruiting
Heart health prevention program
This trial tests a program to help prevent heart problems in people who have not had a heart attack or stroke. It is for adults aged 30 and older.
Cotignola, RavennaAges 18–30 - NCT06526468Recruiting
AI study for diagnosing blood clots in lungs
This study uses artificial intelligence to look at imaging scans from people who might have a pulmonary embolism (a blood clot in the lungs). It aims to help doctors better diagnose and treat this condition.
BeijingAges 14 years+ - NCT06564675Recruiting
Using EEG brain waves to predict recovery after cardiac arrest
This trial uses a special EEG device (Brainstatus) to measure brain activity in people who are still unconscious after a cardiac arrest. The goal is to see if certain brain waves can predict a good recovery.
HelsinkiAges 18–110 - NCT07766434Recruiting
Registry for heart artery blockage treatment
This study looks at real-world outcomes for people with narrowed heart arteries (coronary artery disease). It may include those treated with stents (PCI) or medicines. Doctors will use a special computer tool to measure the severity of blockages and track health over time.
Beijing, Beijing MunicipalityAges 18 years+ - NCT07761273Enrolling by invitation
Tricuspid valve repair using heart tissue
This study tests a new way to repair the tricuspid valve (the valve that controls blood flow on the right side of your heart) using a piece of your own heart tissue called the right atrial appendage. This might be an option for people who need this type of valve surgery.
Zagazig, Sharqia ProvinceAges 18–70 - NCT04240366Recruiting
Extra left atrial appendage treatment during AF ablation
This trial tests whether adding treatment to the left atrial appendage during a standard catheter ablation helps people with persistent atrial fibrillation (AF). It may improve how well AF is controlled, but you must meet specific heart rhythm and heart scan measurements to join.
Hamburg, Free and Hanseatic City of HamburgAges 18 years+ - NCT07759167RecruitingPhase 1
Study of three study drugs for kidney failure patients on dialysis
This trial tests three experimental antibodies given to people with end-stage kidney disease who are on hemodialysis. It aims to see if these drugs are safe and how they affect blood clotting in this group.
Ghent, Oost-VlaanderenAges 18 years+ - NCT07764978RecruitingPhase 3
New drug combo for multiple myeloma without stem cell transplant
This trial tests a new drug called AZD0120 added to standard treatments for people newly diagnosed with multiple myeloma who are not eligible for a stem cell transplant. It aims to see if the combination can better control the disease and improve outcomes.
Gilbert, ArizonaAges 18 years+ - NCT07760363Recruiting
Foot exercise device for leg swelling
This study tests if using a foot pedal device while lying down can help reduce leg swelling in the hospital. It aims to see if this simple exercise can improve comfort and outcomes for people with fluid buildup.
Tulsa, OklahomaAges 18 years+
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,610 recruiting cardiology studies from the U.S. registry right now, out of 14,650 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.