Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,626 recruiting studies in this area right now.
By phase
- Not applicable7,647
- Phase 4471
- Phase 2470
- Phase 3439
- Phase 1350
- Phase 1/Phase 2161
- Phase 2/Phase 388
Top conditions
- Stroke798
- Heart Failure538
- Hypertension390
- Cardiovascular Diseases374
- Coronary Artery Disease361
- Multiple Myeloma328
- Atrial Fibrillation258
- Ischemic Stroke190
- Atrial Fibrillation (AF)154
- Acute Ischemic Stroke138
- Pulmonary Hypertension105
- Myocardial Infarction96
- Congenital Heart Disease83
- Peripheral Arterial Disease80
- Stroke, Ischemic77
- Aortic Valve Stenosis76
- Acute Coronary Syndrome74
- Obesity74
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 Medicine57
- Beijing Tiantan Hospital53
- Insel Gruppe AG, University Hospital Bern49
- Massachusetts General Hospital49
- Yonsei University48
- Johns Hopkins University45
Where studies are running
- California449
- Alabama195
- Arizona183
- Massachusetts174
- New York165
- Florida141
- Texas122
- Maryland119
- Minnesota118
- Illinois111
Recruiting studies9,626 total
- NCT07249905RecruitingPhase 1/Phase 2
Testing MDX2003 for people with relapsed B-cell lymphoma
This trial is testing a new drug, MDX2003, for people with certain types of lymphoma that have come back after at least two prior treatments. It aims to see how safe the drug is and if it can shrink tumors.
Richmond, VictoriaAges 18 years+ - NCT06902415Recruiting
Using a computer analysis platform for brain blood vessel disease
This study uses a special computer platform to analyze DSA scan images from people with brain blood vessel diseases. It aims to better understand their condition and guide treatment decisions.
Beijing, Beijing MunicipalityAges 1–80 - NCT06895291Recruiting
Whole body MRI for cancer patients
This study uses whole-body MRI scans to see if they help monitor or diagnose cancer better. It may be an option if your doctor has already recommended this type of scan.
Bologna, BOAges 18 years+ - NCT07256249Recruiting
Registry studying a drug-coated balloon for coronary artery disease
This trial is tracking the long-term safety and effectiveness of a sirolimus-eluting balloon (Selution SLR) in people with coronary artery disease. It aims to see how well this device works when used to open blocked arteries in real-world medical practice.
AmadoraAges 18 years+ - NCT07249671Recruiting
Rope skipping for kids' heart and lung fitness
This study tests if rope skipping can improve heart and lung fitness in healthy children ages 6 to 12. It may help kids get more active and build endurance.
Chak Four Hundred Fifty-four, Punjab ProvinceAges 6–12 - NCT07256704Recruiting
Hypnosis and attention for neurological conditions
This study looks at whether hypnosis can help improve attention in people with conditions like stroke, traumatic brain injury, or multiple sclerosis. It may help if you have trouble concentrating or focusing.
LucerneAges 18 years+ - NCT07254390Recruiting
Vagus nerve stimulation for arm recovery after stroke
This trial tests whether gentle electrical stimulation of the vagus nerve in the ear can improve arm and hand recovery when combined with physical therapy. It is for people who had a stroke within the last 6 months and have some arm weakness but can still move their arm a little.
Montescano, PaviaAges 18 years+ - NCT07258524Recruiting
Vasculitis PET scan trial for heart disease risk
This trial uses a special PET scan to look at inflammation in blood vessels and check heart disease risk in people with active ANCA-associated vasculitis (AAV). It may help doctors understand how to better manage heart health during treatment.
EdinburghAges 18 years+ - NCT07255469Recruiting
Fluid response test in children after heart surgery
This trial tests how well the body responds to a fluid bolus in children who have just had heart surgery. It uses blood gas tests and maybe an ultrasound to guide treatment.
Bron, FranceAges birth–15 years - NCT07250958Recruiting
Testing dome-only coiling for severe aneurysm bleeding
This trial tests a specific way of treating a brain aneurysm that has caused a severe bleed (subarachnoid hemorrhage). Instead of coiling the whole aneurysm, doctors will only coil the dome part. The goal is to see if this simpler approach helps patients who are very sick from the bleeding.
Louisville, KentuckyAges 18 years+ - NCT07257198RecruitingPhase 3
Aspirin-free care with ticagrelor after a heart attack treated without stents or bypass
This trial tests whether taking ticagrelor (a blood thinner) alone, without aspirin, is safe and effective for people who have had a heart attack and are being treated with medication only (no stents or bypass surgery). It could mean fewer pills and possibly reduce bleeding risks.
Montreal, QuebecAges 18 years+ - NCT07251140Recruiting
Swallowing study with a new microphone device
This study tests a new microphone device to see if it can help find swallowing problems in people who have had a stroke. If you are already scheduled for a swallowing test, you may be able to take part.
Atlanta, GeorgiaAges 40–85 - NCT07257107Recruiting
Vagus nerve stimulation plus robot training for stroke recovery
This trial tests if combining a gentle ear nerve stimulation device with robot-assisted arm training can improve arm function in people who had a stroke more than six months ago.
Istanbul, IstanbulAges 18–70 - NCT07252830Recruiting
Finding hidden heart risk with extra imaging tests
This study looks at whether using special scans of the heart and neck arteries can better find people at very high risk for heart problems, compared to just using a standard risk score. You may be eligible if you have high cholesterol and are seeing a heart doctor.
PoitiersAges 40–80 - NCT07250529Recruiting
Comparing two pacemaker pacing methods for heart block
This study compares two types of pacemaker pacing methods in people with heart block and normal heart pumping function. It looks at how often short bursts of fast heart rhythm occur in the upper heart chambers, which may help improve long-term heart health.
PátraiAges 18 years+ - NCT07259239Recruiting
Using sonic cracker to treat heart artery calcium buildup
This study tests a new device called a 'sonic cracker' (IVL) to break up hard calcium in your heart arteries during a planned angioplasty (PCI). It aims to see if this approach is safe and works well for people with moderate or heavy calcium buildup.
SingaporeAges 21 years+ - NCT07253909Enrolling by invitation
Arm function in heart failure with ICD or CRT devices
This study looks at how well people with heart failure and certain heart devices (ICD or CRT) can use their arms and hands. It aims to understand if these devices affect upper body function.
Ankara, SamanpazarıAges 18 years+ - NCT07255144Recruiting
Ultrafast ultrasound imaging for children's heart conditions
This study tests a new, faster ultrasound technique to see heart structure and blood flow in children with or without congenital heart disease (CHD). It aims to improve imaging without risk, using a short scan during a regular check-up.
Pessac, FranceAges Any age - NCT07259200Recruiting
Sleep quality after atrial fibrillation ablation
This study looks at how treating AFib with a procedure called catheter ablation might affect your sleep quality. You can join if you have AFib and are already planning to have this procedure, and you also have at least one risk factor for sleep apnea.
Grodzisk MazowieckiAges 18 years+ - NCT07258706Enrolling by invitation
Study on TAVI results based on patient differences
This trial is for people with severe aortic stenosis who are already scheduled for TAVI (a procedure to replace a narrowed heart valve). It looks at how individual differences affect the procedure's outcomes.
VicenzaAges 18 years+ - NCT07250035RecruitingPhase 3
Chinese herb trial for brain bleed linked to amyloid angiopathy
This trial tests a traditional Chinese medicine called Jiedu Huayu to see if it helps people recover from a brain bleed caused by a condition where proteins build up in blood vessel walls (cerebral amyloid angiopathy). The goal is to improve outcomes without surgery.
BeijingAges 50–90 - NCT07257146Enrolling by invitation
Studying barriers to stroke care in the Middle East and North Africa
This trial looks at what makes it hard for people to get stroke treatment quickly. It uses a phone app to track where you live and what obstacles you face, to help improve care for others in the future.
AlexandriaAges 18 years+ - NCT07252856Recruiting
Digital support for heart rehab (phase III)
This trial tests a digital tool to help people with heart disease continue their cardiac rehabilitation at home during the maintenance phase. It's for people who have already completed the earlier rehab phase and are ready for long-term support.
LeuvenAges 18 years+ - NCT07252310Enrolling by invitationPhase 4
Smartphone app to find best beta blocker dose for heart failure
This study uses a smartphone app to test how different beta blocker doses work best for you. It's for older adults with stable heart failure who want to fine-tune their treatment.
New York, New YorkAges 65 years+
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,626 recruiting cardiology studies from the U.S. registry right now, out of 14,734 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.