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
- NCT07372651Enrolling by invitation
AI screening for heart failure in pacemaker patients
This trial uses artificial intelligence to screen pacemaker patients for early signs of heart failure. It is designed for people who have a standard pacemaker, do not already have heart failure, and have a high amount of right ventricular pacing.
LeedsAges 18 years+ - NCT07371806Recruiting
Mindfulness for stress in women with heart disease
This trial tests if a mindfulness-based stress reduction program can help women with coronary artery disease. It focuses on reducing anxiety and improving well-being.
Kayseri, Türki̇yeAges 18–50 - NCT07376590Recruiting
Flow diverter stent study for brain aneurysms
This trial tests a flow-diverting stent for treating certain brain aneurysms located in distal parts of the brain's arteries. It’s for people who have already received this stent and are between 18 and 80 years old.
Hangzhou, ZhejiangAges 18–80 - NCT07373717Enrolling by invitation
Comparing fluid tolerance tests in shock patients
This trial studies different ways to measure how much extra fluid your body can handle when you are in shock. The goal is to see which method works best and helps doctors make better decisions about fluid treatment.
Nanjing, JiangsuAges 18 years+ - NCT07375966RecruitingPhase 2
Repeated clot-busting drug for stroke with large vessel block
This trial tests if giving a second dose of the clot-busting drug tenecteplase can help people whose stroke symptoms don't improve after the first dose, when a large or medium artery in the brain is still blocked. It may be an option for patients who cannot have a mechanical clot removal procedure.
Shenyang, LiaoningAges 18–80 - NCT07378891Enrolling by invitation
AI eye screening for early diabetic retinopathy
This study uses artificial intelligence (AI) to look at photos of the back of your eye (retina) to find early signs of diabetic eye disease. It aims to catch problems before they worsen, so you can get treatment sooner.
TübingenAges 18–80 - NCT07377383Recruiting
Exercise for heart health in postmenopausal women
This study tests how different exercise routines affect heart and metabolic health in women after menopause. It may help if you are already active, have few heart risk factors, and are not on hormone therapy.
Oleiros, A CoruñaAges 46–65 - NCT07377422Recruiting
Safer stent placement for carotid artery narrowing
This trial tests a new type of catheter that helps doctors place a stent in the carotid artery through a small tube in your wrist instead of the groin. This could make the procedure safer and more comfortable for you.
BeijingAges 18 years+ - NCT07374289Recruiting
CPR and life support before hospital in Ostrava
This trial is testing a way to start CPR and emergency life support (ECPR) at the scene of a cardiac arrest in Ostrava. It might help if you or a loved one has a witnessed cardiac arrest that is likely caused by a heart problem, and you're under 70 years old.
Ostrava, Moravian-Silesian RegionAges 18–70 - NCT07372729Recruiting
Smartwatch program for heart health in overweight adults
This trial tests if a smartwatch app can help people who are overweight and have slightly high blood pressure, sugar, or cholesterol improve their heart health. If you qualify, you'll use a smartwatch to track your activity and get coaching.
Beijing, Beijing MunicipalityAges 18 years+ - NCT07374601Recruiting
Testing Super-Resolution Ultrasound for Peripheral Artery Disease
This study tests a new ultrasound technique that creates clearer images of blood vessels. It may help doctors better diagnose and understand peripheral artery disease, which affects blood flow to the legs.
Beijing, Beijing MunicipalityAges 18–100 - NCT07377695Recruiting
Remimazolam dosing: computer-controlled vs. manual
This trial compares two ways of giving the sedative remimazolam during brain bypass surgery. It looks at which method uses less medicine. If you are having this surgery, you may be able to join.
Seongnam-si, Gyeonggi-doAges 19 years+ - NCT07375940Recruiting
Understanding Behçet Disease in children and teens
This study looks at the health records and blood tests of children and young adults with Behçet disease to learn more about the condition. It also compares their results with healthy children to find clues that may help doctors better understand and treat Behçet disease.
Florence, FlorenceAges 6 months–70 years - NCT07373041Recruiting
Support program for heart failure carers in the UK
This study tests a support program for people who care for loved ones with heart failure. It aims to see if the program helps carers by providing talking support and information, and it may help you if you’re caring for someone with heart failure and are comfortable using a digital device.
BelfastAges 18 years+ - NCT07372040RecruitingPhase 2
Adding a Water Pill for Heart Failure in the Hospital
This trial tests if adding a diuretic (water pill) called acetazolamide to usual care can help you get rid of extra fluid faster while you are in the hospital for worsening heart failure.
TantaAges 18 years+ - NCT07372820Recruiting
Metabolic changes after heart transplant and outcomes
This trial looks at how metabolism changes after a heart transplant and whether those changes affect your long-term health and recovery. It is for people who are planning to have or have already had a heart transplant.
Düsseldorf, North Rhine-WestphaliaAges 18 years+ - NCT07373119Enrolling by invitation
Frailty reduction in stable heart disease patients
This study tests a program to reduce frailty in older adults with stable coronary artery disease. The goal is to improve strength and well-being in people who are not having recent heart problems.
Barcelona, Select...Ages 70 years+ - NCT07372027Recruiting
Single-needle return for long-lasting dialysis access
This study compares a new single-needle return technique for your dialysis access (AVF) to the usual two-needle method. It aims to see if using just one needle on your fistula and getting the blood back through a leg vein can help your fistula last longer.
Suzhou, AnhuiAges 18–100 - NCT07372716Recruiting
Blood thinner safety during cancer surgery
This trial studies the safety of managing blood thinners (like apixaban or warfarin) around the time of cancer surgery or procedures. It aims to help doctors understand how to best handle these medications to reduce risks.
OttawaAges 18 years+ - NCT07375251Enrolling by invitation
Heart app study for stable heart failure patients
This study tests if using a smartphone app can help monitor stable heart failure at home. If you have stable heart failure and can use a smartphone, you may be able to join.
Sassari, SSAges 18 years+ - NCT07376785Enrolling by invitation
Can smartphones check heart sounds for birth defects?
This study tests whether a smartphone app can accurately detect inborn heart diseases by listening to heart sounds. Participation involves having your heart sounds recorded with a smartphone, which may help find problems earlier.
Hong KongAges 6 years+ - NCT07372170Recruiting
Blood thinners for preventing another clot in low-risk APS
This study looks at how well blood thinners prevent blood clots from coming back in people with antiphospholipid syndrome (APS) who are considered low risk. It compares two types of medicines: direct oral anticoagulants (DOACs) and vitamin K antagonists.
Madrid, MadridAges 18 years+ - NCT07375602Recruiting
AI tool to predict complications after VSD closure in children
This study uses artificial intelligence to predict complications in children who have had a specific type of hole in the heart (called a perimembranous ventricular septal defect) repaired with a catheter-based procedure. The goal is to help doctors better identify which children might have problems after the procedure.
Shanghai, Shanghai MunicipalityAges Up to 18 years - NCT07378137Recruiting
Patient and doctor views on heart treatment outcomes after stenting
This study compares how patients and doctors think about the benefits of heart treatments after a stent procedure. It involves filling out a questionnaire to share your preferences.
Xi'an, ShaanxiAges 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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- Pain
- Injuries & trauma
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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.