Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,613 recruiting studies in this area right now.
By phase
- Not applicable7,634
- Phase 2471
- Phase 4471
- Phase 3438
- Phase 1350
- Phase 1/Phase 2161
- Phase 2/Phase 388
Top conditions
- Stroke796
- Heart Failure535
- Hypertension389
- Cardiovascular Diseases374
- Coronary Artery Disease362
- Multiple Myeloma328
- Atrial Fibrillation259
- Ischemic Stroke190
- Atrial Fibrillation (AF)154
- Acute Ischemic Stroke139
- Pulmonary Hypertension104
- Myocardial Infarction96
- Congenital Heart Disease83
- Peripheral Arterial Disease80
- Stroke, Ischemic77
- Aortic Valve Stenosis76
- Obesity74
- Acute Coronary Syndrome73
Leading sponsors
- Mayo Clinic93
- Assistance Publique - Hôpitaux de Paris88
- National Taiwan University Hospital67
- 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
- California449
- Alabama195
- Arizona182
- Massachusetts174
- New York166
- Florida141
- Texas122
- Maryland118
- Minnesota118
- Illinois111
Recruiting studies9,613 total
- NCT07500480Recruiting
Home use of a wearable grasping device after stroke
This trial tests if a wearable device that helps open and close the hand can be used at home by people who have weakness after a stroke. It may help improve your ability to grasp objects like a glass or spoon.
ToulouseAges 18 years+ - NCT04490720Recruiting
Buckwheat husk extract for heart risk factors
This trial studies whether buckwheat husk extract can improve certain heart-related measurements in people with mildly high blood pressure. It may help lower cardiovascular risk factors by affecting things like blood pressure.
TaipeiAges 20–65 - NCT00178594Recruiting
Testing bleeding and clotting issues in people
This study looks at how the body stops bleeding or forms clots in people with bleeding or clotting disorders. It may help researchers understand these conditions better and improve evaluation tests.
Houston, TexasAges 1 day–98 years - NCT06059144RecruitingPhase 3
Raising blood pressure for worsening small artery strokes
This trial tests if raising blood pressure slightly with a low dose of a medicine called norepinephrine can help people whose stroke symptoms are getting worse. It focuses on small, deep brain artery strokes and aims to improve recovery.
BordeauxAges 18 years+ - NCT06386874Recruiting
Magnetic field therapy for arm recovery after stroke
This study tests a new magnetic device applied to the head to help improve arm function after a stroke. You will use the device while doing exercises, and a caregiver will support you with a mobile app and video calls.
Downey, CaliforniaAges 22–80 - NCT06503692Recruiting
Comparing balloons for dialysis graft narrowing
This trial tests two types of balloon catheters (scoring and high-pressure) to open up narrowed spots in dialysis grafts. The goal is to find which works better to keep your access working well for dialysis.
Beijing, Beijing MunicipalityAges 18–80 - NCT06655636Recruiting
Testing a new robotic brace to help stroke survivors open their hand
This trial tests a wearable robotic device (ExoNET) that helps stroke survivors with hand weakness. It aims to see if the device is safe and helpful for people who had a stroke at least 8 months ago and still have trouble using their arm and hand.
Chicago, IllinoisAges 40–70 - NCT06656754RecruitingEarly Phase 1
IsoReach: A study on reaching after stroke
This trial tests a new way to measure how people reach for objects, looking at differences between healthy adults and those who have had a stroke. The goal is to understand how stroke affects movement so better therapies can be developed.
Chicago, IllinoisAges 18 years+ - NCT06748924Recruiting
Chronic coronary syndrome snapshot study
This study looks at how well doctors follow standard guidelines when treating people with chronic coronary syndrome (a type of long-term heart disease). It may help doctors improve care for patients with chest pain, heart disease, or related conditions.
YerevanAges 18 years+ - NCT06749951Recruiting
Talk therapy for insomnia in heart disease patients
This study tests whether cognitive behavioral therapy (a type of talk therapy focused on changing thoughts and habits) can help people with coronary heart disease who also have trouble sleeping. You will learn skills to improve your sleep and your overall heart health.
Drammen, BuskerudAges 18–75 - NCT06766006Recruiting
Heart-lung machine left ventricle unloading study
This study looks at how to best relieve pressure on the heart while a heart-lung machine is helping to pump blood. It includes anyone who needs this support.
MaastrichtAges 1 day–80 years - NCT06767254Recruiting
Using AI to predict early return of multiple myeloma
This study uses artificial intelligence to analyze how multiple myeloma may lead to early relapse. It may help doctors better predict and manage the disease.
Meldola, Forlì-CesenaAges 18 years+ - NCT07491744Enrolling by invitation
Stroke and TIA study on heart and blood vessel health
This study looks at the causes of stroke and TIA by doing extra tests on patients admitted to the hospital. It aims to better understand and prevent future heart and blood vessel problems.
Stockholm, Stockholm CountyAges 18 years+ - NCT07492511Recruiting
Ultrasound patterns in kidney and liver after trauma
This trial uses special ultrasound (Doppler) to look at blood flow in the kidneys and liver after a serious injury. It aims to find patterns that could help doctors better understand and treat trauma patients.
BolognaAges 18–65 - NCT07493915Recruiting
Personalized rehab for veterans with heart failure with preserved ejection fraction
This study tests a tailored exercise program for veterans who have heart failure with preserved ejection fraction (HFpEF). It aims to see if a personalized rehab plan can improve your heart function and quality of life.
Columbia, South CarolinaAges 18 years+ - NCT06082063RecruitingPhase 3
Reducing heart disease risk in type 1 diabetes
This trial tests a combination of treatments to lower the risk of heart disease and kidney problems in people with type 1 diabetes who already have some complications or higher risk. If you qualify, you will receive extra care aimed at preventing heart attacks, strokes, and kidney failure.
CopenhagenAges 40–90 - NCT05529459Recruiting
Guidance method for opening heart blockages with stents
This study compares two ways of deciding how completely to open blocked heart arteries using drug-eluting stents. It aims to see which guidance approach improves results and safety for people with coronary artery disease who need a PCI (heart catheter procedure).
AnyangAges 19 years+ - NCT06767605Recruiting
Spanish registry for autoimmune liver diseases
This study collects information from people with autoimmune or cholestatic liver diseases to better understand them and improve care. It does not test a new treatment, but your participation can help future research.
BarcelonaAges 18 years+ - NCT06768008Recruiting
Integrated care model for newborns with critical heart disease
This trial tests a coordinated treatment plan for newborns with critical congenital heart disease, starting before birth and continuing after delivery. It aims to improve outcomes for babies who need two-ventricle repair surgery.
BeijingAges 1 day–4 weeks - NCT07497464Recruiting
Handedness test for stroke recovery
This trial tests if a simple, free task can recognize handedness in people who have had a stroke. It aims to help tailor rehabilitation after a stroke.
Madrid, MadridAges 18 years+ - NCT07492719Recruiting
Swallowing exercises with visual feedback after stroke
This study tests whether special swallowing exercises with a visual feedback tool can help people who have trouble swallowing after a recent stroke. If you've had a stroke in the last 6 months and have trouble swallowing, this may help you regain strength.
AnkaraAges 18 years+ - NCT07498283Recruiting
Peer mentor support for atrial fibrillation
This study tests if having a peer mentor—someone who has been through similar health experiences—can help people with atrial fibrillation who have lower income or education levels. You would talk with a mentor and fill out surveys to see if this support improves your well-being.
Herlev, Capital RegionAges 18 years+ - NCT07490054RecruitingPhase 1
Fecal transplant for chronic heart failure
This trial tests whether transferring healthy gut bacteria (fecal microbiota transplant) can help people with chronic heart failure feel better and improve their heart function.
New York, New YorkAges 18 years+ - NCT07491718Recruiting
MRI with manganese for takotsubo cardiomyopathy
This study uses a special MRI with a contrast agent called manganese to look at how the heart works in people with takotsubo cardiomyopathy (broken heart syndrome). It may help doctors understand why this condition happens and how to treat it better.
EdinburghAges 18 years+
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,613 recruiting cardiology studies from the U.S. registry right now, out of 14,690 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.