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
- NCT06409585Recruiting
Heart muscle disease imaging study for scarring
This study uses advanced imaging (PET/MR or PET/CT) to look at scarring (fibrosis) in the heart muscle. It is for people with various heart muscle diseases, including heart failure with preserved pumping, thickened heart muscle, high blood pressure-related heart damage, heart inflammation, and others.
Edinburgh, ScotlandAges 30–90 - NCT06409702RecruitingPhase 4
Treating high-risk multiple myeloma with MRD testing
This trial tests a treatment plan for people with newly diagnosed high-risk multiple myeloma. It uses a special test called minimal residual disease (MRD) detection to see how well the treatment is working and guide next steps.
Suzhou, JiangsuAges 18 years+ - NCT06409767Recruiting
Early warning system for blood cancer patients on chemo or transplant
This study tests whether a special early warning system can help doctors spot problems sooner in people with blood cancers who are getting strong chemo or a stem cell transplant. The goal is to improve outcomes by catching complications early.
AmiensAges 18 years+ - NCT06409754Recruiting
Brain-computer interface for arm recovery after stroke
This trial tests a brain-computer interface system that helps move your arm using electrical stimulation. It is for people who have had a stroke at least 6 months ago and have lasting weakness in one arm.
Mexico City, Mexico CityAges 18 years+ - NCT06409949Recruiting
MitoQ for leg pain from blocked arteries
This study tests whether MitoQ, a supplement that protects cells, can improve leg pain and walking ability in people with peripheral artery disease. It aims to see if it helps the tiny blood vessels and muscle fibers in the leg.
Omaha, NebraskaAges 21 years+ - NCT06410274Recruiting
MRI study of brain damage after bleeding stroke
This study looks at small areas of damage (called ischaemic lesions) seen on MRI after a bleeding stroke. It aims to understand how common they are and what they mean for recovery. Participants will have an MRI scan within a few days of their stroke.
LeicesterAges 18–120 - NCT06410521Recruiting
Personalized exercise program for peripheral arterial disease
This trial tests a personalized exercise program for people with peripheral arterial disease (PAD), a condition that causes leg pain when walking. The goal is to see if a tailored exercise plan can help reduce pain, improve walking distance, and boost quality of life.
Vila RealAges 18 years+ - NCT06410690Recruiting
AI tool to predict high-risk coronary plaques from heart scans
This trial uses an artificial intelligence (AI) tool to analyze heart CT scans (CCTA) and identify dangerous plaque buildup that could lead to a heart attack. It aims to see if AI can better predict high-risk plaques in people with known or suspected coronary artery disease (CAD).
Milan, MilanAges 18 years+ - NCT06411990Recruiting
Laser fenestration study for aortic aneurysm repair
This trial studies a new laser technique to repair aortic aneurysms in patients who cannot have standard open surgery. It uses a small laser to create openings in a stent-graft for blood flow to the kidneys and other organs.
Columbia, MissouriAges 18 years+ - NCT06411353Recruiting
Blood flow and sounds in new dialysis access
This study looks at blood flow and sounds in new arteriovenous fistulas (AVFs) during dialysis. If you need a new AVF in your forearm, this trial may help doctors understand how to make your fistula work better.
Bergamo, BergamoAges 18–90 - NCT06412250Recruiting
Study of the VIVO ISAR Stent in Heart Patients
This registry tracks people who get a VIVO ISAR stent to see how well it works and how safe it is. If you have a stent placed and take blood thinners for three months or less, you might be able to join.
AhmedabadAges 18 years+ - NCT06412237Recruiting
Wearable robot hand brace for stroke recovery
This trial tests a wearable robotic hand brace to help you move your arm and hand after a stroke. It is for people who are at least 6 months past their first stroke, have some arm strength, and can have a caregiver help with home exercises.
Singapore, SingaporeAges 21–80 - NCT06412536Recruiting
Heart, weight, and hormone trial screening survey
This trial is a quick survey to find out if you may be eligible for future studies on heart health, weight, or hormone-related conditions. It helps researchers match you with the right treatment options.
Brooklyn, New YorkAges 18 years+ - NCT06414265Recruiting
Testing a new valve for severe mitral regurgitation
This trial tests a new device called the SATURN system, which places a new mitral valve without open-heart surgery. It is for people aged 65 and older with severe mitral regurgitation who are at high risk for surgery.
TbilisiAges 65 years+ - NCT06416371Recruiting
Eye vessel leakage study for mild stroke survivors
This study uses eye scans to see if blood vessel leakage in the retina (back of the eye) is linked to small vessel disease in the brain after a mild stroke. It may help doctors better understand and monitor this condition.
EdinburghAges 18 years+ - NCT06416488Recruiting
HIIT for heart health in school-age kids
This trial tests whether a high-intensity interval training (HIIT) program can improve heart health and reduce risk factors like high blood sugar, cholesterol, and blood pressure in school-age children. It's for children who have at least one of these problems and are not already doing intense exercise.
Shanghai, Shanghai MunicipalityAges 7–18 - NCT06416761Recruiting
Genetics and kidney disease progression study
This study looks at how genetics affect the progression of kidney diseases. Joining may help researchers understand your condition better and find better treatments.
MilanAges 18 years+ - NCT06417502Recruiting
China pediatric rheumatic disease registry study
This study collects information from children with rheumatic and immune system diseases in China to better understand these conditions. By participating, you help researchers learn more about how to diagnose and treat these diseases.
Beijing, Beijing MunicipalityAges Up to 18 years - NCT06417177RecruitingEarly Phase 1
How aging and menopause affect blood vessel response to low oxygen
This study tests how blood vessels in women respond to low oxygen levels at different stages of menopause. It may help explain why aging affects heart health.
Columbia, MissouriAges 18–70 - NCT06417541Recruiting
Study of blood clots from central lines using CT scans
This study uses special CT scans (photon-counting CT) to look for blood clots related to central lines, both in patients who have passed away and in living patients. It aims to better understand and detect these clots.
Lund, Skåne CountyAges 18 years+ - NCT06418048Recruiting
Infectious disease registry and biobank trial
This study collects medical information and optional biological samples (like blood or saliva) from people with an active or suspected infection. The goal is to build a large database that can help researchers better understand infectious diseases and develop new ways to diagnose and treat them.
MilanAges 18 years+ - NCT06418698Recruiting
Brain artery calcium and clot removal outcomes
This study looks at whether calcium buildup in brain arteries affects how well clot removal (mechanical thrombectomy) works for stroke patients. You may be able to join if you have a large artery blockage, a CT scan was done, and you are having the clot removal procedure.
Guangzhou, GuangdongAges 18 years+ - NCT06418633Recruiting
Walking test after a provoked blood clot
This study looks at how a 60-minute walking test affects blood clotting in people who have had a provoked blood clot (from a known cause like surgery or birth control) compared to similar people who have never had a clot. It helps understand how the body's clotting system works after such a clot.
Nîmes, OccitanieAges 18–65 - NCT06419959Recruiting
NightWare watch for better sleep and heart health in veterans with PTSD
This study tests if a special watch (NightWare) can help veterans with PTSD who have nightmares sleep better and improve heart health. The watch vibrates gently during nightmares to reduce them without waking you up.
Aurora, ColoradoAges 22–88
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
- 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.