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
- NCT07582848Recruiting
Breastfeeding Support for Babies with Heart Disease
This study helps mothers of babies born with heart defects learn to breastfeed directly, even when the baby needs heart surgery in the first month of life. Researchers want to see if direct breastfeeding improves health outcomes for both mother and baby during this critical time.
Phoenix, ArizonaAges 18 years+ - NCT07577596RecruitingPhase 4
Continuous Furosemide Infusion for Heart Failure Fluid Overload
This study tests whether giving furosemide (a water pill) as a continuous IV drip works better than standard doses for patients hospitalized with heart failure and fluid buildup. The goal is to help your body get rid of excess fluid more effectively.
RandersAges 18 years+ - NCT07577700Recruiting
Blood flow imaging study during pulmonary surgery
This study uses a special imaging technique called electrical impedance tomography (EIT) to measure how blood flows through your lungs during surgery for chronic thromboembolic pulmonary hypertension. The goal is to better understand how this imaging tool works and improve outcomes for patients having this procedure.
São Paulo, São PauloAges 18 years+ - NCT07585760RecruitingPhase 2
Two-drug treatment for newly diagnosed myeloma with kidney problems
This trial tests a combination of two drugs, CM336 and isatuximab, for people newly diagnosed with multiple myeloma who also have kidney problems caused by the disease. The goal is to see if this combination can help control the myeloma while also improving kidney function.
TianjinAges 18–80 - NCT07581587Recruiting
Breathing Exercises and Brain Function in Heart Failure
This study tests whether special breathing exercises—done alone or while doing a mental task—can improve memory and thinking skills in people with heart failure. Researchers want to see if training your breathing muscles helps your brain work better.
Istanbul, FatihAges 40 years+ - NCT07577336Recruiting
Portable MRI for children with oxygen-related brain injury
This study tests whether a small, portable MRI scanner can safely take pictures of the brain in seriously ill children who may have brain injury from lack of oxygen. It could help doctors diagnose and treat these children faster, without moving them from the ICU.
Kansas City, MissouriAges Up to 17 years - NCT07580443Recruiting
Quality of Life After Open Surgery for Complex Aortic Aneurysms
This study follows patients who have had open surgery to repair complex abdominal aortic aneurysms—bulges in the main blood vessel in the belly. Researchers will ask you about your quality of life after surgery to understand how well people recover and feel.
LucerneAges 18 years+ - NCT07581808RecruitingPhase 4
Two cholesterol drugs for heart disease prevention
This study tests two newer cholesterol-lowering medications (inclisiran and alirocumab) together in people who've had heart problems or strokes and cannot tolerate standard cholesterol drugs. The goal is to see if this combination safely lowers cholesterol further and reduces future cardiovascular events.
LjubljanaAges 18 years+ - NCT07585175Recruiting
Moving from pediatric to adult heart disease care
This study helps doctors understand how to smoothly transition young people with heart problems they were born with from pediatric (children's) hospitals to adult care. It may help improve care coordination and outcomes as patients grow up.
Ottawa, OntarioAges 18 years+ - NCT07581704RecruitingPhase 1
Sirolimus plus immunotherapy for relapsed multiple myeloma
This study tests whether a drug called sirolimus, given before certain immunotherapy treatments (teclistamab or talquetamab), helps these treatments work better against multiple myeloma. These immunotherapies teach your immune cells to attack myeloma cells.
Iowa City, IowaAges 18 years+ - NCT07582523Enrolling by invitation
Heart Rhythm Monitoring at Home for High Blood Pressure
This study tests whether wearing a small heart rhythm patch at home can detect irregular heartbeats in people with high blood pressure. It may help catch heart rhythm problems early before they cause symptoms.
San Francisco, CaliforniaAges 60 years+ - NCT07582835RecruitingPhase 3
Long-term heart clot prevention after stent placement
This study tests whether taking a single blood-thinning medication (instead of two) after heart stent placement is safe and effective over the long term. If you've recovered well from a stent procedure, this trial may help determine the safest way to prevent future heart problems.
Lugano, Ch/tiAges 18 years+ - NCT07583784Recruiting
Shorter blood thinner treatment after heart attack with irregular heartbeat
This trial tests whether patients with both irregular heartbeat (atrial fibrillation) and a recent heart attack can safely take a shorter course of blood-thinning medications after a stent procedure. The goal is to reduce bleeding risk while still protecting against future clots.
Gwangju, GwangjuAges 19 years+ - NCT07579871Recruiting
Sleep patterns and recovery after first stroke
This study looks at how sleep affects recovery in people who have had their first ischemic stroke (a stroke caused by a blood clot). Researchers want to understand whether sleep quality influences how well patients regain function after stroke.
Lund, Skåne CountyAges 18 years+ - NCT07581899Recruiting
Heart Health Program for Lumbee Indian Women
This study tests a mind-body program designed to reduce heart disease risk in Lumbee Indian women. The program combines stress-management techniques with lifestyle changes to help improve heart health.
Pembroke, North CarolinaAges 18–55 - NCT07582861Recruiting
Support for Mothers Expecting Babies With Heart Disease
This study offers psychological support to pregnant mothers who have learned their baby has congenital heart disease (a heart condition present at birth). The research tests whether counseling and coping strategies provided before and after birth can help mothers manage stress and anxiety during this challenging time.
Phoenix, ArizonaAges 18 years+ - NCT07579169Recruiting
Comparing radiation exposure from two heart procedure access sites
This study compares radiation exposure to doctors performing heart procedures using two different arm access points. It helps determine which approach is safer for medical staff doing these procedures repeatedly.
OsakaAges 20 years+ - NCT06722066Recruiting
TAVR and heart valve calcium study
This study looks at how calcium buildup in the aortic valve affects long-term results after a TAVR procedure (a minimally invasive heart valve replacement). It may help doctors understand which patients do better over time.
SeoulAges 19 years+ - NCT06723704Recruiting
Long-term outlook in adults with congenital heart disease
This study looks at how adults with congenital heart disease (a heart problem you were born with) do over time. By reviewing medical records, doctors hope to learn what affects long-term health and help improve care for patients like you.
Rome, RMAges 18 years+ - NCT06722625Recruiting
Smartphone-Guided Care for High Blood Pressure
This study tests a program where you get care for high blood pressure through a smartphone app and video calls with a doctor, to see if it works better than usual care.
PoznanAges 18–80 - NCT05416879Recruiting
Lifestyle support for women newly diagnosed with heart failure
This study looks at how lifestyle behaviors affect people in the weeks after a new heart failure diagnosis. It may help you learn safer physical activity and understand what supports you while you adjust to treatment.
Newcastle upon TyneAges 18 years+ - NCT05428631Recruiting
Monitoring device tested in severe kidney and heart failure
This study checks how safe a small heart-pressure monitoring device is for people with advanced heart failure and severe kidney problems. It looks at whether doctors can continuously track heart filling/pressure to help manage symptoms and reduce risks.
Nîmes, GardAges 18–85 - NCT05698277Recruiting
Ultrasound to track baby heart function in heart disease
This study uses automated ultrasound measurements to track how a baby’s heart is working during pregnancy. It compares babies who have a specific congenital heart problem with babies without it, to understand what ultrasound can detect.
Sydney, New South WalesAges 18 years+ - NCT05778981Recruiting
Study of blood-vessel health during non-heart surgery
This study looks at how blood-vessel function changes around the time of non-heart surgery, especially in people 45 and older. It may help doctors better understand risks and recovery related to blood-vessel stress during hospitalization.
Independencia, Santiago MetropolitanAges 45 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
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- Pain
- Injuries & trauma
- Mouth & dental
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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.