Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 10,008 recruiting studies in this area right now.
By phase
- Not applicable7,984
- Phase 2484
- Phase 4481
- Phase 3449
- Phase 1360
- Phase 1/Phase 2163
- Phase 2/Phase 387
Top conditions
- Stroke846
- Heart Failure563
- Hypertension400
- Cardiovascular Diseases389
- Coronary Artery Disease371
- Multiple Myeloma331
- Atrial Fibrillation271
- Ischemic Stroke200
- Atrial Fibrillation (AF)143
- Acute Ischemic Stroke141
- Pulmonary Hypertension101
- Myocardial Infarction99
- Congenital Heart Disease86
- Stroke, Ischemic84
- Peripheral Arterial Disease83
- 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
- California467
- Alabama197
- Massachusetts182
- Arizona174
- New York163
- Florida143
- Minnesota121
- Maryland120
- Illinois119
- Texas118
Recruiting studies10,005 total
- NCT06749106Recruiting
Using MRI to find bleeding in neck artery plaque
This study uses MRI scans that are already done as part of your stroke care to look for bleeding inside plaque in the neck arteries. The goal is to see if this bleeding can help predict stroke risk.
MunichAges 18 years+ - NCT06749223Recruiting
Testing a D-dimer blood test for blood clots
This study is testing a new D-dimer blood test (AQT90 FLEX) to see how well it detects blood clots in people who have symptoms but a low to moderate risk. If you join, this test may help rule out dangerous clots more quickly.
ViborgAges 18 years+ - NCT06749405Recruiting
Using Quantra to Guide Transfusions During Liver Transplant
This study tests a special tool called Quantra, which helps doctors decide when to give blood products during your liver transplant. The goal is to make sure you get just the right amount of transfusions, which could improve your safety and recovery.
ToulouseAges 18 years+ - NCT06749834RecruitingPhase 3
Clot-busting drug after stroke in people on newer blood thinners
This trial tests whether a clot-busting medication given through a vein (intravenous thrombolysis) can safely treat acute ischemic stroke within 24 hours in people who have taken a newer oral blood thinner (NOAC) within the last 4 to 48 hours.
Hangzhou, ZhejiangAges 18 years+ - NCT06749951Recruiting
Talk therapy for insomnia in heart disease patients
This study tests whether cognitive behavioral therapy (a type of talk therapy focused on changing thoughts and habits) can help people with coronary heart disease who also have trouble sleeping. You will learn skills to improve your sleep and your overall heart health.
Drammen, BuskerudAges 18–75 - NCT06750939Recruiting
Comparing two sedatives for ICU breathing tube placement
This study compares two medicines (propofol and ketamine) used to help you relax and stay stable while a breathing tube is placed. The goal is to see which one is safer for your heart and blood pressure during this procedure in the ICU.
Köseköy, KocaeliAges 18 years+ - NCT06751082Recruiting
Sotatercept for pulmonary hypertension study
This study looks at how well the drug Sotatercept works for people with pulmonary hypertension (high blood pressure in the lungs) in a real-world clinic setting. If you are already taking Sotatercept, you may be able to join.
Rochester, MinnesotaAges 18 years+ - NCT06752096Recruiting
Robot-Helped Brain Blood Vessel Procedures
This trial uses a robot to assist with brain blood vessel treatments, like checking for blockages, treating tumors, or removing clots. It may help make these procedures more precise and safer.
Seoul, KoreaAges 18–80 - NCT06752707Recruiting
MiGo Tracker: home exercise monitoring after stroke
This study tests a wearable device called MiGo Tracker that tracks your arm and hand movements during home exercises after a stroke. It helps your therapist see how you're doing and adjust your rehab.
Downey, CaliforniaAges 18 years+ - NCT06752720RecruitingPhase 2
Stem cell therapy for chronic stroke patients
This trial tests whether a patient's own stem cells can be safely injected into the brain to help recovery after a stroke. It is for people who had an ischemic stroke 6 months to 5 years ago and still have moderate to severe symptoms.
Sapporo, HokkaidoAges 20–70 - NCT06752772Recruiting
Wearable health coaching for blood pressure and weight
This study tests a digital health coaching program that uses a smartwatch and smartphone to help people manage conditions like high blood pressure, pre-diabetes, or weight. It aims to see if wearable technology can improve your health with personalized coaching.
SingaporeAges 21–75 - NCT06753006Recruiting
Research on stroke rehabilitation for arm weakness
This study tests a new rehabilitation program for people who have had a stroke within the last 6 months. It focuses on improving arm weakness using special therapy techniques.
Samara, Samara OblastAges 18–80 - NCT06753045Recruiting
Heart health study with wearable device and smartphone app
This study uses a wearable wrist device to monitor your health data and look for early signs of heart problems. It's for people with or without heart disease, and involves wearing a watch-like device and using a smartphone app.
New Orleans, LouisianaAges 18–120 - NCT06753409Recruiting
Brain monitoring during anesthesia for major abdominal surgery
This study tests whether using a special brain wave monitor during anesthesia can improve recovery for people having major abdominal surgery lasting more than two hours.
AsyutAges 18–70 - NCT06753591Recruiting
Premature heart attack registry in Serbia
This trial is creating a registry of young adults (45 and under) who have had a heart attack. It will collect information to help doctors better understand and treat early heart attacks.
BelgradeAges 18–45 - NCT06753786Recruiting
Blood thinner timing study for bleeding stroke patients
This study looks at when it is safest to start blood thinners to prevent blood clots (deep vein thrombosis) after a type of bleeding stroke called hypertensive intracerebral hemorrhage. Researchers want to find the best time to start this prevention treatment.
MoscowAges 18 years+ - NCT06754176Recruiting
Alcohol and AFib: Avoiding vs. Allowing Drinking
This study tests whether avoiding alcohol completely for two weeks helps people with AFib have fewer episodes, compared to allowing regulated drinking. You will be randomly assigned to one of the two groups.
San Francisco, CaliforniaAges 21 years+ - NCT06754371RecruitingPhase 4
Tranexamic acid to prevent heavy bleeding after C-section in autoimmune disease
This trial tests if a medicine called tranexamic acid can reduce the risk of heavy bleeding after a C-section for women who have certain autoimmune diseases. It aims to help prevent postpartum hemorrhage in this specific group.
Shanghai, Shanghai MunicipalityAges 18–50 - NCT06754475Recruiting
Low volume arm HIIT for heart failure patients
This trial tests if short, high-intensity arm exercises can help people with stable heart failure. It looks at safety and improvements in daily function.
Mersin, MersinAges 18 years+ - NCT06754566Recruiting
Caregiver-assisted rehab with strategy training for stroke recovery
This trial tests a program where your caregiver helps you with rehabilitation exercises and strategy training to improve recovery after a stroke. It may be a good fit if you have mild to moderate disability and can participate with a healthy caregiver.
New Taipei CityAges 18 years+ - NCT06754709Recruiting
Protein Changes in Children Having Heart Surgery
This study looks at a specific protein change in blood and heart tissue of children having heart surgery with a heart-lung machine. The goal is to understand how this protein might affect recovery.
NantesAges Up to 17 years - NCT06754735RecruitingPhase 4
Oxygen therapy for chronic leg ulcers
This study tests a new device that delivers oxygen to the wound area (topical wound oxygen therapy) to help heal chronic leg ulcers caused by vein disease. It may help people who have not seen enough healing with compression therapy alone.
New York, New YorkAges 18 years+ - NCT06754956Recruiting
MRI Study of Artery Plaques Using Different MRI Scanners
This study investigates the build-up of fatty deposits called plaques in arteries of the brain and neck using two different strengths of MRI scanners. It aims to understand how well these MRI techniques can image the plaques, which could help doctors better diagnose and manage stroke risk.
ShanghaiAges 18–95 - NCT06755840Recruiting
Sleep breathing problems and multiple health conditions study
This study is for people who may have sleep-related breathing problems (like sleep apnea). It looks at how these issues connect with other health conditions. Participants will do a one-night sleep test and some simple health checks at Xiangya Hospital.
ChangshaAges Any age
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 10,008 recruiting cardiology studies from the U.S. registry right now, out of 15,355 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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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.