Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 10,022 recruiting studies in this area right now.
By phase
- Not applicable7,998
- Phase 2485
- Phase 4481
- Phase 3449
- Phase 1361
- Phase 1/Phase 2161
- Phase 2/Phase 387
Top conditions
- Stroke846
- Heart Failure565
- Hypertension401
- Cardiovascular Diseases390
- Coronary Artery Disease372
- Multiple Myeloma330
- Atrial Fibrillation272
- Ischemic Stroke199
- Atrial Fibrillation (AF)144
- Acute Ischemic Stroke141
- Pulmonary Hypertension102
- Myocardial Infarction99
- Congenital Heart Disease86
- Peripheral Arterial Disease85
- Stroke, Ischemic84
- 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
- California466
- Alabama198
- Massachusetts181
- Arizona176
- New York165
- Florida144
- Maryland120
- Minnesota120
- Illinois119
- Texas119
Recruiting studies10,019 total
- NCT06799780Recruiting
Surgery for heart hole after heart attack: timing study
This study looks at people who had a hole in their heart after a heart attack and had surgery to fix it. The goal is to understand how the timing of surgery affects recovery.
Bologna, BolognaAges 18 years+ - NCT06800430Recruiting
Studying graft problems after bypass surgery
This study looks at why some bypass grafts fail over time. It may help find better ways to treat or prevent graft problems in people who have had coronary artery bypass surgery.
Edinburgh, MidlothianAges 18 years+ - NCT06801392Recruiting
Pulsed-field ablation for non-paroxysmal atrial fibrillation
This trial tests a new way to treat non-paroxysmal atrial fibrillation (AF) using a focused type of ablation (pulsed-field energy) on specific areas of the heart. It aims to see if targeting the left atrial wall and mitral isthmus can improve outcomes for people who have not had this procedure before.
PragueAges 18 years+ - NCT06801743Recruiting
When is a cardiac MRI helpful for extra heartbeats?
This study looks at when a cardiac MRI is most useful for people with extra heartbeats called premature ventricular complexes. It helps doctors understand if the MRI gives them important information beyond standard heart tests.
SalouëlAges 18 years+ - NCT06802016Recruiting
Study of Chinese congenital bicuspid aortic valve
This study looks at people with a bicuspid aortic valve (a valve with two flaps instead of three) in Chinese patients. It collects information about this condition to better understand it.
Shanghai, Shanghai MunicipalityAges 14–60 - NCT06802081RecruitingPhase 2
Tirzepatide for weight loss in people with atrial fibrillation
This study tests whether tirzepatide, a medication that helps with weight loss and blood sugar control, can improve the heart rhythm condition atrial fibrillation. If you have AFib and are overweight or obese, this trial may be an option for you.
Cleveland, OhioAges 18–80 - NCT06802159Recruiting
Rehabilitation methods for stroke-related neglect
This study tests different therapy methods to help people who have trouble paying attention to one side of the world after a stroke. It aims to find which approach works best for improving this 'neglect' and helping you get back to daily activities.
Moscow, MoscowAges 18–80 - NCT06802588Recruiting
Better treatment for non-traumatic brain bleeding
This trial studies how to improve care for patients who come to the emergency room with a brain bleed not caused by injury. The goal is to find better ways to manage recovery and outcomes.
AngersAges 18 years+ - NCT06803550Recruiting
Recovery program after anal surgery
This trial tests a special recovery program after surgery for common non-cancerous anal conditions like hemorrhoids, anal fissures, or fistulas. The goal is to see if this approach helps you heal faster and feel better.
Al MansurahAges 18–65 - NCT06803849Recruiting
Biomarkers and pregnancy history for heart failure prognosis
This study looks at whether certain substances in the blood and your history of pregnancy complications can help predict the course of heart failure with preserved ejection fraction (a type of heart failure where the heart pumps well but doesn't relax properly). It may help doctors better understand and manage this condition in older women.
MoscowAges 60–74 - NCT06804148Recruiting
Myval heart valve registry in Germany
This registry tracks people getting a new heart valve called Myval. It's designed to see how well it works in real-world care.
Lübeck, Schleswig-HolsteinAges 18 years+ - NCT06804304Recruiting
Music therapy rehab after stroke via video calls
This trial tests whether music-based therapy sessions done over video calls can help improve thinking, language, or arm movement after a stroke. It may be a good fit if your stroke happened at least 3 months ago and you have some ongoing cognitive or physical difficulties.
HelsinkiAges 30–80 - NCT06804278Recruiting
Spectral CT for diagnosing heart inflammation in chest pain
This study uses a special CT scan (called spectral CT) to look for inflammation of the heart muscle or other heart problems in people who come to the hospital with sudden chest pain. The goal is to see if this scan can help doctors diagnose the cause of your chest pain more accurately.
BolognaAges 18 years+ - NCT06804499Recruiting
Coronary artery disease and sudden cardiac arrest study
This study is for people with coronary artery disease (blocked arteries in the heart) who live in the Pirkanmaa area of Finland. It will collect information and blood samples to better understand heart disease and sudden cardiac arrest.
Tampere, PirkanmaaAges 18 years+ - NCT06805253Recruiting
Heart recovery after surgery for leaky aortic valve
This trial studies how well the heart's main pumping chamber (left ventricle) recovers after surgery to fix a leaky aortic valve. It is for people who also have a leaky mitral valve and an enlarged left ventricle, and who are having their first planned valve surgery.
MoscowAges 18 years+ - NCT06805409Recruiting
Ultrasound test for kidney risk in ARDS patients
This study tests whether a special ultrasound of the veins (VExUS) can help predict kidney injury in people with severe breathing problems who are on a breathing machine and receiving medicine to support their blood pressure.
Créteil, Val de MarneAges 18–100 - NCT06805721Recruiting
Observational study of endovascular treatment for brain and spine vessel conditions
This study follows patients of any age who are having a minimally invasive procedure (endovascular treatment) for blood vessel problems in the brain or spine. It looks at how patients do before and after the procedure, any complications, and what factors might predict a good outcome.
MilanAges Any age - NCT06805929Recruiting
Stroke recovery: brain signals and rehab results
This study looks at how brain signals and MRI scans change after a first stroke that affects the arm. It tests whether these signals can help predict how well rehabilitation will work.
Roma, ItalyAges 18 years+ - NCT06806397Recruiting
Brain imaging study of arm weakness after stroke
This study uses a light-based brain scanner (fNIRS) to understand how stroke affects arm movement. It may help find new ways to improve rehab.
MoscowAges 35–70 - NCT06806540Recruiting
Peripheral artery disease in patients with deep vein thrombosis in the leg
This study looks at how many people with blood clots in their leg veins also have narrowing in their leg arteries. It uses an ultrasound test to check both conditions.
Bologna, BolognaAges 18 years+ - NCT06806813Recruiting
Italian Fabry disease heart registry
This study is creating a registry of people with Fabry disease to better understand how it affects the heart. By joining, you help doctors learn more about the condition and improve care for future patients.
Chieti, Abruzzo/ChietiAges 2 years+ - NCT06807099Recruiting
Stent graft for dialysis access problems
This trial tests a special stent graft called WRAPSODY CIE to treat narrowed or blocked veins in the arm used for dialysis. It aims to keep your access working well so you can continue receiving hemodialysis.
Dothan, AlabamaAges 18 years+ - NCT06808204Recruiting
How ablation affects quality of life in kids with heart rhythm issues
This study looks at how a heart procedure called catheter ablation (which fixes irregular heartbeats) affects the quality of life of children aged 5–17. By joining, you'll help doctors learn if this treatment really helps kids feel better day-to-day.
BronAges 5–17 - NCT06809309Recruiting
Ventilation during in-hospital cardiac arrest study
This trial tests different methods of giving breaths (ventilation) to adults who have a cardiac arrest while in the hospital. It aims to find which approach works best to improve survival.
AabenraaAges 18 years+
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 10,022 recruiting cardiology studies from the U.S. registry right now, out of 15,398 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
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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.