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
- NCT05457738Recruiting
Home walking program using a smartphone app for leg artery pain
This trial tests whether a home-based walking (exercise) plan, guided by a new smartphone app, can help people with intermittent claudication caused by blocked leg arteries. It may help improve walking comfort and ability by using a structured, app-supported exercise routine.
ReimsAges 18 years+ - NCT06560502Recruiting
Testing new treatments for diabetic foot and leg ulcers
This trial tests whether adding a special treatment (cellular acellular and matrix-like products) to standard wound care helps diabetic foot ulcers and venous leg ulcers heal faster. It may be an option if you have a diabetes-related foot ulcer that hasn't healed with standard care.
Circleville, OhioAges 21 years+ - NCT06517628Recruiting
Heart health in pregnancy: a study for moms and babies
This study follows pregnant women with heart conditions to understand how pregnancy affects their heart health and their baby's health. You may join if you have one or more heart conditions, such as a heart defect, a heart infection, an irregular heartbeat, or a blood vessel problem.
Kansas City, MissouriAges 18 years+ - NCT06784557RecruitingPhase 4
Study of ezetimibe's effect on gut bacteria
This trial tests whether ezetimibe, a cholesterol-lowering drug, changes the bacteria in your gut. It may help people with heart disease or high cholesterol who are already on a statin.
SeoulAges 19–80 - NCT06783166RecruitingPhase 2/Phase 3
Comparing two medications for acute heart failure with fluid buildup
This trial tests if dapagliflozin or acetazolamide works better for people hospitalized with heart failure who have extra fluid in their body (congestion). The study will compare how well each medication helps remove fluid when used with standard IV diuretics.
Al MansurahAges 18 years+ - NCT06784440Recruiting
Finding noninvasive markers of graft injury after heart transplant
This study looks for noninvasive markers (like blood or urine tests) that can show if a heart transplant is being injured. It aims to make monitoring safer and easier for children and adults with congenital heart disease who have had a transplant.
BolognaAges Up to 44 years - NCT06783816Recruiting
New immune cell therapy for blood cancers
This study tests a new type of CAR-T cell therapy designed to treat certain blood cancers (like leukemia, lymphoma, or multiple myeloma) that have come back or not responded to standard treatment. The cells are enhanced with IL-15 to help them work better.
Taiyuan, ShanxiAges Any age - NCT06785740Recruiting
Statins for older stroke patients with frailty
This study looks at how well statins work in older stroke or TIA patients who are already taking them and also have some frailty. The goal is to understand if continuing statins is safe and helpful for this group.
Almere StadAges 70–120 - NCT05717725RecruitingPhase 3
Pulsed heart ablation vs fake procedure for irregular heartbeat
This trial tests whether pulsed-field ablation (a targeted treatment meant to stop abnormal heart signals) works better than a sham, or “placebo,” ablation. It is for certain people with atrial fibrillation (AF) to see if symptoms and heart rhythm outcomes improve.
PragueAges 18 years+ - NCT06573554Recruiting
Comparing two casts for Charcot foot healing
This study compares two ways to take weight off a Charcot foot (a diabetic foot complication) — a special contact cast versus a removable back slab. The goal is to see which method helps your foot heal better.
ChandigarhAges 18 years+ - NCT06735378Recruiting
Exercise before dialysis to protect the heart
This study tests if doing gentle exercise just before dialysis can help prevent heart damage that sometimes happens during treatment. You may be able to join if you are on long-term dialysis and have not been exercising vigorously.
London, OntarioAges 18–79 - NCT06786858Recruiting
Hand exoskeleton training for stroke recovery
This study tests whether a robotic hand device (exoskeleton) can help people who had a stroke more than 6 months ago improve hand movement. It may benefit those who still have some hand function but struggle to open their affected hand.
Washington D.C., District of ColumbiaAges 21 years+ - NCT06786000Recruiting
Brain stimulation plus hand therapy for stroke recovery
This trial tests a combination of mild electrical brain stimulation and a special hand therapy program to help improve arm and hand movement after a stroke. It is for adults who had a stroke more than three months ago and still have moderate to mild arm weakness.
Riyadh, Riyadh RegionAges 18 years+ - NCT06786416Recruiting
Monitoring to prevent kidney injury after heart surgery
This trial is testing a new monitoring system that tracks blood flow and other vital signs during heart surgery to help prevent kidney damage afterward.
San Donato Milanese, MilanoAges 18 years+ - NCT06786364Recruiting
Measuring blood flow waves in sepsis patients
This study uses a special light sensor to measure blood flow waves in patients with septic shock. The goal is to see if these waves can help doctors understand how severe the shock is.
Mexico City, CuauhtemocAges 18 years+ - NCT05155137RecruitingPhase 3
Daily pill and home risk check to prevent stroke and memory loss
This Phase 3 trial tests whether a daily “polypill” plus a simple home risk-check plan can lower the chance of stroke and future thinking/memory problems. It is aimed at adults at moderate risk but who have not had stroke or heart disease before.
Porto Alegre, Rio Grande do SulAges 50–75 - NCT05968053Recruiting
Testing microplastics detection in neurosurgery patients
This study checks whether microplastics and nanoplastics can be detected in people undergoing neurosurgery. If it works, it could help doctors better understand possible material exposures around brain and nerve procedures.
Beijing, Beijing MunicipalityAges 18–80 - NCT06351150RecruitingPhase 3
Testing angiotensin II for refractory distributive shock
This study tests an injection of angiotensin II (a substance that helps tighten blood vessels) versus a placebo for patients with distributive shock that is not responding to standard treatments. It may help raise blood pressure and improve outcomes.
Hefei, AnhuiAges 18 years+ - NCT06777927Recruiting
Exergaming training for people with high blood pressure
This study tests whether playing interactive video games (exergaming) can help people with high blood pressure get active and improve their health. It is for adults who have not exercised in the last 3 months.
Islamabad, FederalAges 20–55 - NCT07465263RecruitingPhase 3
Study of SYH2053 Injection for High Cholesterol in HeFH
This study tests a new injection called SYH2053 for people with HeFH, a genetic condition that causes very high cholesterol. It looks at whether the injection can safely lower LDL cholesterol when added to standard statin therapy.
Beijing, Beijing MunicipalityAges 18 years+ - NCT07464353Recruiting
Device study for closing femoral access after heart procedures
This trial tests a new device called xDot that helps close the small hole in the leg after a heart procedure like a valve replacement or aneurysm repair. It is a feasibility study, meaning the device is being tested for safety and how well it works in people.
Downers Grove, IllinoisAges 18 years+ - NCT07464444Recruiting
Study testing a device that records heart and lung sounds
This study is testing a new device that records heart and lung sounds to see if it can help doctors better understand heart and lung conditions. You may be eligible if you have a known heart condition or if you are generally healthy, and if you've had or will have an echocardiogram (heart ultrasound) in the last or next year.
Montreal, QuebecAges 18–100 - NCT07465653RecruitingPhase 1
Study of HJB647 for heart failure with reduced pumping ability
This trial tests a new medicine, HJB647, in people with heart failure who have a weak heart pump. It aims to see if the drug is safe and well-tolerated. You may qualify if your heart's pumping ability is reduced and you are on a specific standard therapy.
Bradenton, FloridaAges 18–100 - NCT07470788Recruiting
Vesalius TMVr system for leaky heart valve (mitral regurgitation)
This study tests a new device called the Vesalius TMVr system to fix a leaky mitral valve without open-heart surgery. It's for people with severe mitral regurgitation who are not good candidates for surgery.
VancouverAges 19 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.
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.