Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 10,066 recruiting studies in this area right now.
By phase
- Not applicable8,037
- Phase 2488
- Phase 4482
- Phase 3452
- Phase 1360
- Phase 1/Phase 2161
- Phase 2/Phase 386
Top conditions
- Stroke856
- Heart Failure566
- Hypertension403
- Cardiovascular Diseases390
- Coronary Artery Disease375
- Multiple Myeloma329
- Atrial Fibrillation273
- Ischemic Stroke199
- Atrial Fibrillation (AF)146
- Acute Ischemic Stroke141
- Pulmonary Hypertension104
- Myocardial Infarction98
- Congenital Heart Disease87
- Peripheral Arterial Disease85
- Stroke, Ischemic84
- Acute Coronary Syndrome83
- Obesity80
- Aortic Valve Stenosis78
Leading sponsors
- Mayo Clinic94
- Assistance Publique - Hôpitaux de Paris92
- National Taiwan University Hospital74
- China National Center for Cardiovascular Diseases59
- Beijing Tiantan Hospital54
- Massachusetts General Hospital51
- Riphah International University51
- Second Affiliated Hospital, School of Medicine, Zhejiang University51
- Insel Gruppe AG, University Hospital Bern50
- Johns Hopkins University47
Where studies are running
- California467
- Alabama198
- Massachusetts181
- Arizona176
- New York166
- Florida145
- Illinois120
- Maryland120
- Texas120
- Minnesota119
Recruiting studies10,063 total
- NCT07420023Recruiting
Nutrition study for weight management and fullness
This study tests a special food product and meal plan to help people feel fuller longer and control appetite. It may help you understand how certain foods affect your body and weight.
CorkAges 18–45 - NCT07420088Recruiting
Seasonal activity in heart failure with a heart device
This trial studies how physical activity changes with the seasons in people with heart failure who have a pacemaker or defibrillator. It aims to help doctors understand how to better support your activity levels throughout the year.
ÇorumAges 18 years+ - NCT07420374Recruiting
Outpatient stroke care for older patients
This study tests whether older people with minor strokes or warning signs can be safely treated at home or in an outpatient clinic instead of staying in the hospital. It may be a good fit if you recently had a mild stroke and do not need complex medical care.
HeidelbergAges 60 years+ - NCT07420400Recruiting
Detecting heart shunts without needles
This trial uses a specialized ultrasound test (TEE with bubble study) to find a small opening in the heart called a PFO. It may help people who need this test to check for causes of certain health problems.
La Jolla, CaliforniaAges 18 years+ - NCT07420582Recruiting
Blood recycling after bypass heart surgery
This trial tests whether collecting and re-infusing your own blood during heart surgery reduces the need for donor blood transfusions. It's for adults having planned bypass surgery with a heart-lung machine.
Kocaeli, IzmitAges 18–80 - NCT07421076Recruiting
Grid mapping study for atrial fibrillation ablation
This trial tests a new mapping tool to help doctors find and treat the source of atrial fibrillation (AF) during a standard ablation procedure. It may offer a more precise way to guide treatment for people with AF that comes and goes.
Jinan, ShandongAges 18 years+ - NCT07421453Recruiting
Better recovery plan for draining brain blood clots
This trial is testing a new, step-by-step care plan (called an enhanced recovery pathway) for people who need a small hole drilled in their skull to drain a slow-growing blood clot (chronic subdural hematoma). The goal is to see if this organized approach helps patients recover faster and feel better.
LeuvenAges 18 years+ - NCT07421882Recruiting
Cooling after cardiac arrest to improve brain recovery
This trial tests if starting body cooling before reaching the hospital can help protect the brain after a cardiac arrest. It is for adults who are unconscious after their heartbeat has been restored by emergency services.
SingaporeAges 16–80 - NCT07422129Recruiting
Aortic wall analysis during heart surgery
This study looks at the structure and strength of the aorta (the main artery from your heart) in patients having surgery to replace part of it or having a heart transplant. The goal is to better understand the aortic wall to improve future treatments.
Pavia, LombardyAges 18 years+ - NCT07425132Recruiting
Non-invasive heart mapping for congenital heart disease
This trial tests a new, non-invasive way to create detailed 3D maps of the heart's electrical activity in people with congenital heart disease. It aims to help guide procedures like heart catheterization or device implantation, potentially making them safer and more personalized.
Madrid, MadridAges 18–80 - NCT07425756Recruiting
Nerve stimulation for arm movement after stroke
This trial tests whether combining two types of nerve stimulation (one on the ear, one on the arm) can improve arm and hand movement after a stroke. It's for people who had a stroke at least 6 months ago and still have some but not full use of their affected arm.
KowloonAges 50–75 - NCT07427108Recruiting
Road map vs. ultrasound for retrograde leg angioplasty
This trial compares two imaging methods (road map vs. ultrasound) to guide a needle puncture from the ankle area during angioplasty for blocked leg arteries. It aims to see which method is safer and more effective for patients with severe leg wounds or ulcers that need this retrograde approach.
SohagAges 18 years+ - NCT07427199Recruiting
Digital nutrition therapy after heart attack
This study tests whether a digital nutrition program (app- or online-based) can improve heart function after a heart attack. It compares the program to standard care for people who have had a STEMI heart attack.
Samsun, AtakumAges 19–65 - NCT07427472Recruiting
Follow-up study of heart artery changes in familial high cholesterol
This trial follows people with a genetic high-cholesterol condition (HeFH) who had a heart scan at least 5 years ago. Researchers will do a new scan to see how their heart arteries have changed over time, without any experimental treatments.
ParisAges 30–60 - NCT07427511Recruiting
Rehab program for stroke recovery
This study tests a rehabilitation program for people who still have arm or leg trouble after a stroke. It aims to see if intensive daily training can improve movement and function.
Vitznau, Canton of LucerneAges 18–85 - NCT07428161Recruiting
Task-oriented circuit training for arm recovery after stroke
This trial tests whether a specific type of exercise program, called task-oriented circuit training, can improve arm and hand function in people who have had a stroke. It may be an option if you have some movement in your wrist and fingers.
Sivas, Sivas/CenterAges 18–65 - NCT07428499RecruitingPhase 3
Long-term safety of ADX-324 for hereditary angioedema
This study is for people who already finished a previous trial of the drug ADX-324 for hereditary angioedema. It tests the long-term safety and effectiveness of continuing the medication.
Litchfield Park, ArizonaAges 18 years+ - NCT07428811Recruiting
Mirror therapy for post-stroke shoulder and hand problems
This trial tests whether task-based mirror therapy can help improve shoulder and hand function in people who have had a stroke less than 6 months ago. It focuses on those with moderate to severe stroke symptoms but without severe muscle stiffness or cognitive issues.
Lahore, Punjab ProvinceAges 45–75 - NCT07428824Recruiting
Action observation with sound for stroke recovery
This study tests whether watching movements and listening to sounds at the same time can help improve walking and moving after a stroke. It is for people who are at least 6 months past their stroke and can already walk a bit.
Lahore, Punjab ProvinceAges 40–60 - NCT07428967Recruiting
Pacemaker after heart procedure for atrial fibrillation
This trial tests a new type of pacemaker for people with atrial fibrillation who are scheduled for a procedure that disconnects the heart's natural electrical pathway. It may help improve symptoms and heart function.
HagenAges 18 years+ - NCT07429227Recruiting
Gut health and heart disease: a probiotic study
This trial tests whether natural extracts and probiotics can improve gut health in people who have had a recent heart attack (Acute Coronary Syndrome). It uses special exams to measure changes in gut bacteria.
Peschiera del Garda, VeronaAges 30–70 - NCT07430007Recruiting
Exercise and diet to reduce AFib burden
This study tests whether a program of exercise and healthy eating changes can reduce how often atrial fibrillation (AFib) happens and help you lose weight. It may be a good fit if you are overweight, have AFib, and are ready to make lifestyle changes.
Jyväskylä, Central FinlandAges 18–75 - NCT07430553Recruiting
Comparing pacemakers for better heart function in heart failure
This trial compares three types of advanced pacemakers (cardiac resynchronization therapy devices) to see which works best for improving heart function and reducing abnormal heart rhythms in people with heart failure.
London, Greater LondonAges 18 years+ - NCT07430813Recruiting
Drone delivery of defibrillators for bystanders
This study tests if drones can deliver a defibrillator to people who witness a cardiac arrest, helping them provide lifesaving care before an ambulance arrives. You may be asked to use a training manikin to see how quickly you can help.
Guildford, SurreyAges 18 years+
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 10,066 recruiting cardiology studies from the U.S. registry right now, out of 15,554 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.