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
- NCT07193719RecruitingPhase 1/Phase 2
Personalized breathing support for kids after heart surgery
This study tests a personalized breathing technique to improve lung function and heart performance in children who have had heart surgery or are on ECMO. The goal is to find the best way to open up the lungs safely.
BerlinAges birth–18 years - NCT07196020Recruiting
Predicting blood clots during chemotherapy for certain cancers
This study looks at whether doctors can predict blood clots in people with certain cancers who are receiving chemotherapy. If you have ovarian, lung, stomach, or pancreatic cancer and are starting chemotherapy, you may be able to join and help improve clot prevention.
Cork, IrelandAges 18 years+ - NCT07196176Recruiting
Heart rhythm test registry at University Hospital Düsseldorf
This registry collects information from people who have had or are scheduled to have a heart rhythm test or a procedure to restore a normal heartbeat at University Hospital Düsseldorf. It helps doctors understand more about heart rhythm problems and treatments over time.
DüsseldorfAges 18 years+ - NCT07201974Recruiting
Virtual reality for walking rehab after stroke
This study tests whether virtual reality (an immersive computer game) can help improve your walking after a stroke. You will use a VR headset while walking on a treadmill to make rehab more engaging and effective.
Laval, QuebecAges 40–84 - NCT07202897RecruitingPhase 3
Preventing blood clots in hypertrophic cardiomyopathy with rivaroxaban
This trial tests if the blood thinner rivaroxaban can prevent strokes in people with hypertrophic cardiomyopathy who have early signs of damage in their left atrium (the heart's upper chamber). You may qualify if you have this condition, are in a normal heart rhythm, and are between 40 and 80 years old.
AngersAges 40–80 - NCT07198061Recruiting
Cold Plasma for Diabetic Foot Ulcers After Leg Artery Treatment
This study tests whether adding cold atmospheric plasma treatment to standard care helps heal foot ulcers in people with diabetes who have recently had a procedure to open blocked leg arteries. The goal is to see if this approach is safe and more effective than current care alone.
Anshan, LiaoningAges 18–80 - NCT07201714RecruitingEarly Phase 1
Carnitine supplement for heart failure with kidney issues
This trial tests whether taking carnitine supplements by mouth can help people who have both heart failure and early-to-moderate kidney problems. It's an early-phase study to see if the supplement is safe and works for this group.
London, OntarioAges 18 years+ - NCT07199283Recruiting
Preventing future health problems after preeclampsia
This study looks at whether a simple treatment after childbirth can help prevent future health problems for women who had preeclampsia in their first pregnancy. You may be able to join if you are a first-time mom who had preeclampsia, you are 18 or older, and you have a smartphone.
Stockholm, Stockholm CountyAges 18 years+ - NCT07198529Recruiting
Short blood thinners after stenting for stable angina
This trial is testing a way to shorten the time you need to take blood thinners after getting a specific type of heart stent. It uses a special camera (OCT) inside the artery to help decide if stents are placed well enough to allow less time on dual antiplatelet therapy.
Seoul, Gurodong-ro, Guro-guAges 19 years+ - NCT07201506Recruiting
Ultrasound-guided ablation for heart rhythm problems
This study uses a special ultrasound camera on a thin tube inside your heart (intracardiac echocardiography) to help doctors see the area causing your heart rhythm problem more clearly during the standard procedure (ablation). It may help them burn the wrong tissue more precisely.
BaselAges 18 years+ - NCT07195903Recruiting
Stand-up study for dizziness when standing
This study tests a new approach to help people who feel dizzy or faint when standing up, especially if standard treatments haven't worked. It aims to improve daily life and reduce risks from low blood pressure.
Roslyn, New YorkAges 18 years+ - NCT07200726Recruiting
Brain inflammation and thinking after heart surgery
This study looks at whether brain inflammation during heart surgery may affect memory and thinking. It includes people aged 60 and older who are having planned heart surgery.
Genk, LimburgAges 60 years+ - NCT07199088Recruiting
Comparing two medicines for fluid buildup in heart failure
This study tests whether adding acetazolamide or metolazone to standard treatment helps remove extra fluid better in people hospitalized for heart failure. It aims to find a safer and more effective option for managing fluid overload.
Chak Four Hundred Fifty-four, Punjab ProvinceAges 18 years+ - NCT06938516Recruiting
Study of Nebilet for high blood pressure
This study is for people with high blood pressure who are taking or about to start the medication Nebilet. It will track how well Nebilet controls blood pressure in real-world settings, including people with other heart conditions.
Semarang, Central JavaAges 18–100 - NCT05062239Recruiting
Statin use after valve surgery to prevent heart rhythm trouble
This study looks at whether taking statin medicines around the time of surgical aortic valve replacement can lower the chance of a common post-surgery heart rhythm problem called atrial fibrillation. It also compares statin-related factors in people who are at the time of surgery in normal rhythm and not on strong rhythm-stabilizing medicines.
OdenseAges 60–95 - NCT05252208Recruiting
Stretching or walking to lower blood pressure
This study compares stretching versus walking to see which helps lower blood pressure. It may help you learn a safe, low-cost routine to improve blood pressure if you have mildly high readings.
Saskatoon, SaskatchewanAges 18 years+ - NCT06253104Recruiting
Tracking muscle changes in acute heart failure
This study measures how thigh muscles change in people hospitalized with severe heart failure. It aims to understand muscle loss during this condition and how it relates to recovery.
Boston, MassachusettsAges 18–100 - NCT06939985Recruiting
Heart health and metabolism registry for heart failure
This trial is a registry that will follow people with different types of chronic heart failure to better understand how heart health and metabolism are linked. It may help doctors improve care for future patients.
ShanghaiAges 18 years+ - NCT06940011RecruitingPhase 2
Endocalyx for hard-to-treat high blood pressure
This trial tests a new treatment called Endocalyx for people whose high blood pressure doesn't get better with multiple medications. It aims to see if Endocalyx can help lower blood pressure when standard medicines aren't enough.
Amsterdam, North HollandAges 18 years+ - NCT06940544Recruiting
Heart failure screening study for adults 40+
This study is looking for people who may have undiagnosed heart failure. It tests a self-screening method at home to find heart problems earlier.
UppsalaAges 40 years+ - NCT06940934Recruiting
Acandis device study for brain aneurysms
This study is checking how well Acandis devices work for treating brain aneurysms in real-world use. If you have a brain aneurysm that can be treated with an Acandis device, this trial may help your doctor understand your treatment options.
RouenAges 18 years+ - NCT06279000RecruitingPhase 3
Colchicine for heart risk during major non-heart surgery
This study tests whether a low-cost, anti-inflammatory drug called colchicine can reduce heart complications after major non-heart surgery. If you have heart or blood vessel risk factors and are scheduled for a major operation, this trial may help protect your heart.
Sankt Gallen, Canton of St. GallenAges 45 years+ - NCT06876597Recruiting
Robotic arm therapy for stroke recovery
This trial tests a robotic arm system that combines movement and thinking tasks to help people recover arm function after a first stroke. It is for people aged 40–80 who had a stroke within the last 2 weeks to 6 months and have some arm weakness but not too severe.
FuzhouAges 40–80 - NCT06942260Recruiting
Vascular access registry for heart procedures
This trial is creating a registry to track how doctors gain access to blood vessels for heart procedures. It may help improve future treatments.
Pátrai, ACHAIAAges 18 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
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- Genetic & congenital
- Bones, joints & muscles
- 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.