Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,613 recruiting studies in this area right now.
By phase
- Not applicable7,634
- Phase 2471
- Phase 4471
- Phase 3438
- Phase 1350
- Phase 1/Phase 2161
- Phase 2/Phase 388
Top conditions
- Stroke796
- Heart Failure535
- Hypertension389
- Cardiovascular Diseases374
- Coronary Artery Disease362
- Multiple Myeloma328
- Atrial Fibrillation259
- Ischemic Stroke190
- Atrial Fibrillation (AF)154
- Acute Ischemic Stroke139
- Pulmonary Hypertension104
- Myocardial Infarction96
- Congenital Heart Disease83
- Peripheral Arterial Disease80
- Stroke, Ischemic77
- Aortic Valve Stenosis76
- Obesity74
- Acute Coronary Syndrome73
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 Medicine58
- Beijing Tiantan Hospital53
- Insel Gruppe AG, University Hospital Bern49
- Massachusetts General Hospital49
- Yonsei University48
- Johns Hopkins University45
Where studies are running
- California449
- Alabama195
- Arizona182
- Massachusetts174
- New York166
- Florida141
- Texas122
- Maryland118
- Minnesota118
- Illinois111
Recruiting studies9,613 total
- NCT07576465Recruiting
Combining Movement Therapy and Electrical Stimulation After Stroke
This trial tests whether combining a specialized movement therapy (SBMT) with electrical nerve stimulation (NMES) can help improve upper arm and hand function in people recovering from stroke. The study focuses on patients 3–6 months after their stroke, when recovery potential is still strong.
Jhang, Punjab ProvinceAges 4.2 years–5.4 years - NCT07569887Recruiting
Brain Imaging Study of Arteriovenous Malformations Before and After Surgery
This research study uses special brain imaging scans to understand how an unruptured arteriovenous malformation (an abnormal tangle of blood vessels in the brain) affects blood flow and thinking abilities before and after surgical treatment. The goal is to learn how surgery impacts brain function and cognition in patients like you.
Montpellier, FranceAges 18 years+ - NCT07570277Recruiting
Nursing Support for Leg Vein Surgery Recovery
This study tests whether specialized nursing guidance helps patients recover better after surgery for varicose veins (enlarged veins in the legs). The nursing support focuses on helping you manage your own care at home after surgery.
Nanchang, Jang XIAges 18 years+ - NCT07572032RecruitingPhase 4
Delayed heart failure medications after fixing the cause
This study tests whether starting two heart failure medications later, after a procedure to fix the heart's problem, is safe and helpful. It aims to see if waiting a bit can still improve heart function and quality of life.
Daegu, DaeguAges 18 years+ - NCT07575347Recruiting
Gum Disease and Rare Kidney Disorders Study
This study explores whether people with certain rare kidney diseases or chronic kidney problems have more gum disease than others. Researchers will examine your teeth and gums to understand the connection and help improve care for people with kidney conditions.
BucharestAges 18 years+ - NCT07572955Recruiting
Understanding Fluid Changes in Hospitalized Heart Failure
This study observes patients admitted to the hospital with heart failure that has suddenly worsened. Researchers will use daily ultrasound scans of your lungs to track fluid buildup and understand how the heart failure progresses during your hospital stay.
Rochester, MinnesotaAges 18 years+ - NCT07573579Recruiting
Personalised heart mapping for ventricular tachycardia treatment
This trial tests a new way of mapping the heart's electrical activity during a procedure called catheter ablation, which aims to treat a fast heart rhythm problem called ventricular tachycardia (VT). The hope is that this personalised approach will make the procedure more effective in stopping these abnormal rhythms.
LiverpoolAges 18–85 - NCT06572943Recruiting
Moderate exercise during pregnancy and heart health
This study looks at whether doing moderate exercise during pregnancy is safe and helpful for both mom and baby's heart health. If you are in your first trimester and do not have any high-risk conditions, you might be able to join.
IoanninaAges 18 years+ - NCT06498011Recruiting
Training to improve arm and hand function after stroke
This study tests a new type of training that combines thinking, feeling, and moving to help improve arm and hand function after a stroke.
Toronto, OntarioAges 18 years+ - NCT06712186RecruitingPhase 1/Phase 2
Dexmedetomidine for safer intubation in high blood pressure patients
This study tests if dexmedetomidine can help prevent dangerous blood pressure spikes during breathing tube placement for surgery in patients with high blood pressure. It is for older adults (over 60) who have been managing their hypertension for at least 6 months.
Karachi, SindhAges 60 years+ - NCT06727669Recruiting
Long-term study of blood clotting and bleeding disorders
This study observes patients with blood clotting or bleeding disorders over time to collect health information and improve care.
Beijing, Beijing MunicipalityAges Any age - NCT06338215Recruiting
Moderate drinking vs. abstention advice for adults
This study compares two approaches for adults who drink regularly: advice on drinking in moderation vs. advice to stop drinking entirely. The goal is to see which approach better prevents major diseases and early death over time.
Pamplona, NavarreAges 50–75 - NCT05833828Recruiting
Testing blood-pressure hormone changes during bypass surgery
This study looks at how a blood-pressure hormone system (RAAS) changes during coronary artery bypass surgery. It may help researchers understand better how to manage blood pressure and heart stress around the time of surgery.
BerlinAges 18 years+ - NCT06189976Recruiting
Can a quick heart pacing test after TAVI predict pacemaker need?
This study checks if a short, controlled heart pacing procedure right after your TAVI (a valve replacement) can tell doctors whether you might need a permanent pacemaker later. It aims to help avoid unnecessary pacemakers.
BrusselsAges 18 years+ - NCT06665386Recruiting
Cooling infusion with clot removal for severe stroke
This study tests whether cooling the brain during clot removal (thrombectomy) can improve recovery after a severe stroke caused by a large blood vessel blockage. Researchers will use blood tests to find markers that may predict who benefits most.
Dalian, LiaoningAges 18–80 - NCT06731257Recruiting
Early discharge after a heart attack with home monitoring
This trial tests if people with a mild heart attack can go home early (within 48 hours) and be monitored virtually instead of staying in the hospital. It aims to make recovery more comfortable while ensuring safety.
LeedsAges 18–99 - NCT06718270RecruitingEarly Phase 1
Study of CT0596 for Relapsed or Refractory Myeloma
This trial tests a new CAR-T cell therapy called CT0596 for people with multiple myeloma or plasma cell leukemia that has come back or stopped responding to treatment. The goal is to see if this therapy can help control the cancer.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT06730607Recruiting
Predicting heart rhythm problems after myocarditis
This study uses heart MRI scans to predict who might develop dangerous heart rhythms after recovering from myocarditis. It aims to find better ways to monitor patients and prevent emergencies.
Rozzano, MilanAges 18 years+ - NCT06730464Recruiting
Predicting dangerous heart rhythms in non-ischemic heart disease
This study uses heart MRI scans to predict who might develop dangerous heart rhythms. It's for people with certain types of non-ischemic heart disease who have already had an MRI with contrast.
Milan, ItalyAges 18 years+ - NCT06730828RecruitingPhase 1/Phase 2
Amiodarone patch to prevent new irregular heartbeat after heart surgery
This trial tests a patch that releases amiodarone, a medicine that helps prevent a common irregular heartbeat after open-heart surgery. The patch is placed on the heart during surgery to stop new atrial fibrillation from starting.
Louisville, KentuckyAges 20–85 - NCT06730711Recruiting
Blood pressure and stroke-related thinking changes
This study looks at how blood pressure after a stroke might affect your thinking and memory. It uses information from your hospital stay and follow-up visits to see if there is a link.
Chongqing, Chongqing MunicipalityAges 18–90 - NCT03827187Recruiting
Brain signal training to detect awareness
This study checks whether brain activity patterns can show when a person is aware, even if they can’t reliably communicate. If signs of awareness are found (or if you already know you are aware), the study may also train a brain-computer interface to support communication or movement assistance.
DublinAges 10–80 - NCT04808401Recruiting
Testing how different oxygen levels affect surgery outcomes
This trial studies whether giving higher or lower oxygen during general anesthesia changes heart and lung outcomes after planned (non-emergency) non-heart surgery. It may help doctors choose safer oxygen settings during surgery for people at higher risk for heart problems.
BernAges 18 years+ - NCT04699279Recruiting
Statin after aortic surgery to protect heart and organs
This trial tests whether taking a cholesterol-lowering medicine (a statin) after certain aortic surgeries can reduce harmful changes in the heart and other organs. You might benefit by lowering the risk of ongoing damage after your acute aortic condition and surgery.
Guangzhou, GuangdongAges 18–85
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,613 recruiting cardiology studies from the U.S. registry right now, out of 14,690 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.