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
- NCT06734065Recruiting
Heart failure monitoring with a non-invasive lung fluid sensor
This trial tests a new device that measures fluid in your lungs without needles or surgery. It may help your doctor manage heart failure better, especially if you've been in the hospital recently or have symptoms like shortness of breath.
FlenAges 18 years+ - NCT06734221Recruiting
Testing a paclitaxel-coated balloon for leg artery disease
This trial tests a special balloon coated with a drug (paclitaxel) to open blocked leg arteries, aiming to improve blood flow and reduce symptoms like leg pain when walking. It is for people with moderate to severe leg artery disease who have not had prior stents or bypass in the treated area.
Chrzanów, MalopolskaAges 18 years+ - NCT06734689Recruiting
Genes and heart inflammation from immunotherapy
This study looks at genetic factors that may affect the risk of heart inflammation (myocarditis) caused by immune checkpoint inhibitors (ICIs), a type of cancer immunotherapy. It aims to find out if your genes make you more likely to develop this side effect.
ParisAges 18 years+ - NCT06735001Recruiting
Finding atrial fibrillation's metabolic signature for personalized prevention
This study looks for unique metabolic patterns in people with atrial fibrillation (an irregular heartbeat). The goal is to develop personalized prevention strategies by comparing these patterns between patients and healthy volunteers.
PessacAges 18 years+ - NCT06735521Recruiting
Heart MRI stress test for Fontan circulation
This study uses a special heart MRI with a medicine that stresses the heart (like exercise) to look at blood flow in people who have had the Fontan surgery. The goal is to better understand how the heart works after this surgery.
StockholmAges 18 years+ - NCT06735599Recruiting
Wild blueberries for blood pressure health
This study tests whether eating wild blueberries can improve your gut, brain, and heart health if you have high blood pressure. You'll eat blueberries daily for several weeks and have checkups to see how your body responds.
Atlanta, GeorgiaAges 45–65 - NCT06735898Recruiting
A combined therapy for recovery after intensive care
This trial tests a combination of CYTOFLAVIN (given as an IV and later as a pill) to help people with long-term symptoms after spending time in the ICU. It aims to improve muscle weakness, breathing, swallowing, and energy levels during later stages of rehabilitation.
Yekaterinburg, Sverdlovsk OblastAges 18 years+ - NCT06736158RecruitingEarly Phase 1
Genetic testing for inherited bleeding disorders
This trial uses early genetic testing to find the cause of unexplained bleeding in people who may have an inherited bleeding disorder. The goal is to see if genetic testing can help diagnose these conditions sooner.
Kingston, OntarioAges 12 years+ - NCT06736665Recruiting
Comparing two ways to treat hardened calcium in heart arteries
This trial compares two techniques (orbital atherectomy and intravascular lithotripsy) to break up tough calcium deposits in the heart's arteries that can block blood flow. If you have a calcified nodule and are having a non-emergency procedure to open a blocked artery, this study may help guide which method works best.
Alicante, AlicanteAges 18 years+ - NCT06737549RecruitingPhase 4
Electroacupuncture and NGF for swallowing problems after stroke
This study tests whether a specific type of electroacupuncture (a gentle needle therapy with mild electrical pulses) plus a nerve growth factor injection can help people who have trouble swallowing after a recent stroke. The goal is to see if this combination improves swallowing function better than standard care.
Hangzhou, ZhejiangAges 18–80 - NCT06737679Recruiting
Body scan therapy for heart failure patients
This trial tests whether a guided body scan can help people with heart failure better recognize their body's internal signals. It may improve how you understand and manage your symptoms.
Milan, ItalyAges 18–75 - NCT06738381Recruiting
Digital prevention program after heart attack or stroke
This trial tests a digital program (using a smartphone or tablet) to help prevent another heart attack or stroke. It is for people who have already had a heart-related event or have known artery plaque buildup.
Drammen, BuskerudAges 18 years+ - NCT06738498Recruiting
Delays and heart attack outcomes study
This study looks at how time delays before and during hospital care affect recovery after a heart attack. It may help identify ways to get faster treatment and improve survival.
BaghdadAges 18 years+ - NCT06738537Recruiting
Choosing treatment for mitral valve prolapse
This study looks at how to involve you in decisions about treating mitral valve prolapse, a condition where a heart valve doesn't close tightly. It aims to find the best way to help you and your doctor choose the right treatment.
Los Angeles, CaliforniaAges 21 years+ - NCT06738615Recruiting
Symptoms and severity of a leaky mitral valve study
This study looks at how symptoms relate to the severity of mitral regurgitation, a leaky heart valve. Researchers want to better understand the link between what you feel and the actual degree of the leak.
Morristown, New JerseyAges 18 years+ - NCT06738758Recruiting
Early intensive cholesterol-lowering study for acute coronary syndrome
This study tests whether starting strong cholesterol-lowering treatment early in the hospital can improve outcomes for people with acute coronary syndrome (a serious heart condition like a heart attack or unstable angina). It may help if you have high LDL cholesterol.
Beijing, Beijing MunicipalityAges 18 years+ - NCT06739239Recruiting
French cohort study of an extra-vascular ICD
This study follows patients who receive a new type of implantable defibrillator that sits outside the heart and blood vessels. It aims to collect information about how well the device works and how safe it is over time.
ParisAges Any age - NCT06740162Recruiting
Physical activity program for adults with intellectual disabilities
This study tests a program to help adults with intellectual disabilities become more physically active. You and your caregiver will work with a coach to increase your daily movement, with the goal of improving health and community connection.
Fayetteville, ArkansasAges 18 years+ - NCT06740838Recruiting
Overnight dexamethasone test for aldosterone screening
This trial is testing a new way to screen for a hormone problem called primary aldosteronism (which can cause high blood pressure) by giving a steroid pill (dexamethasone) overnight. You may be eligible if you have high blood pressure and an adrenal growth, and are already scheduled for a related hormone test.
Gdansk, Pomeranian VoivodeshipAges 40–75 - NCT06740942Recruiting
Studying nerve system changes after stroke with MRI and blood tests
This study looks at how the nervous system's automatic functions (like heart rate and blood pressure) change after a stroke. It uses MRI scans and blood tests to find patterns that might help doctors better understand and treat these changes.
Hamburg, Free and Hanseatic City of HamburgAges 18 years+ - NCT06740929Recruiting
Hormonal treatment for heavy periods in teens
This study tests whether different types of hormonal medication (such as pills or an intrauterine device) can help manage heavy periods in adolescents and young adults. The goal is to find what works best for reducing bleeding and improving quality of life.
GenevaAges Up to 25 years - NCT06741189Recruiting
Home monitoring tool for infants with heart defects
This trial tests a home monitoring tool for babies and toddlers with congenital heart defects who had surgery at Nantes University Hospital. It aims to see if remote tracking can help improve care at home.
NantesAges birth–3 years - NCT06741332Recruiting
AI software to speed up stroke clot removal referrals
This trial tests whether a special AI software can help doctors speed up the process of referring patients with acute stroke for a procedure that removes a blood clot (thrombectomy). If you have stroke symptoms and a recent CT scan, the AI may help identify if you could benefit from this treatment.
Granollers, BarcelonaAges 18 years+ - NCT06741475Recruiting
Caregiver help strategy training for stroke recovery
This study tests a caregiver-assisted strategy training program for people recovering from a stroke. It aims to see if having a healthy caregiver help with daily tasks can improve recovery for those who have limited rehabilitation.
New Taipei CityAges 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
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- Immune system & allergy
- Women’s health & pregnancy
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- Blood & lymphatic
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- Infections
- Genetic & congenital
- Bones, joints & muscles
- Pain
- Injuries & trauma
- Mouth & dental
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- 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.