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
- NCT06670456Recruiting
Brain Bleed Study (Without Surgery)
This study is for people who had a spontaneous brain bleed and did not have surgery. It aims to learn more about their recovery and health over time.
Fuzhou, FujianAges 18 years+ - NCT06670677Recruiting
Blood pressure monitoring for early heart risk awareness
This study is testing whether a blood pressure monitoring system called Aktiia can help people become aware of high blood pressure early and predict heart risks. It involves using a smartphone and a wrist bracelet (or just the phone's camera) to take blood pressure readings.
LausanneAges 21–85 - NCT06670768Recruiting
Comparing two heart imaging tests for blocked arteries
This trial compares two heart imaging tests (SPECT and coronary CTA) to see if a newer method gives a clearer picture of blood flow. If you have been referred for one of these tests, you may be able to help by also having the other test done at no extra risk.
Budapest, BudapestAges 18 years+ - NCT06670781Recruiting
Comparing two ways to do the Valsalva maneuver during a heart ultrasound
This trial compares two ways of doing a breathing maneuver (Valsalva) during a heart ultrasound to see if it better detects a common hole in the heart (PFO). If you are already scheduled for this test, the study will help find the best method for you.
Ottawa, OntarioAges 18 years+ - NCT06671015Recruiting
Comparing breathing support methods after a breathing tube is removed in people with heart failure
This study compares two types of breathing support—a high-flow nasal cannula and noninvasive ventilation—to see which one better prevents the need for re-inserting a breathing tube in people with systolic heart failure who are at high risk for breathing problems after the tube is removed.
New Haven, ConnecticutAges 18 years+ - NCT06672107Recruiting
Driving simulator training after stroke
This study tests if using a driving simulator can help improve driving skills in veterans who have had a stroke. If you are a veteran who had a stroke at least 3 months ago and are between 40 and 80 years old, this program might help you get back behind the wheel safely.
Sacramento, CaliforniaAges 40–80 - NCT06672081Recruiting
Early catheter treatment for high-risk pulmonary embolism
This study tests whether using a catheter (a thin tube) to remove blood clots from the lungs early can help people with a severe, life-threatening pulmonary embolism. It is for patients who are in shock or have had a cardiac arrest due to a large clot.
Bad KrozingenAges 18 years+ - NCT06672159Recruiting
Double shock for out-of-hospital cardiac arrest
This trial tests a new way of giving two quick shocks to restart the heart in people who have a cardiac arrest outside the hospital. If you had a shockable heart rhythm, this approach might help improve your chances of survival.
TrondheimAges 18 years+ - NCT06672250Recruiting
Tumor cells and blood clots in veins
This study looks at the link between tumor cells found in the blood and blood clots in the veins. It is for people who have had or will have a procedure to remove a blood clot, whether they have cancer or not.
New Taipei CityAges 18–80 - NCT06672315Recruiting
Using a heart ultrasound for cardiac arrest outside the hospital
This study uses a special ultrasound probe placed in the esophagus to look at the heart during cardiac arrest happening outside the hospital. The goal is to see if this test can help doctors make better decisions for treatment.
New Taipei CityAges 18 years+ - NCT06673381Recruiting
Blood markers for inflammation in heart attack
This study is checking if a simple blood test (hs-CRP to albumin ratio) can help predict outcomes in people who have had a heart attack or unstable angina but are not getting an immediate balloon/stent procedure. It aims to use inflammation markers to guide better care.
SohagAges 18 years+ - NCT06673602RecruitingPhase 4
Herbal capsule for memory problems after bleeding stroke
This trial tests a Chinese herbal capsule called Fufang Congrong Yizhi Capsule (FCYC) to see if it can help with memory and thinking problems that start after a bleeding stroke. It is for people who have had robot-assisted surgery for their stroke and also fit a specific pattern in traditional Chinese medicine.
Beijing, Beijing MunicipalityAges 18 years+ - NCT06673615Recruiting
Early stages of heart failure study
This study follows people in the early stages of heart failure to understand how the condition develops. It may help researchers find better ways to detect and treat it sooner.
Shanghai, Shanghai MunicipalityAges 60 years+ - NCT06674057Recruiting
Taping with physical therapy for arm function after stroke
This study tests whether adding kinesio-taping to standard physical therapy helps improve arm movement and reduce stiffness in people recovering from a recent stroke.
IslamabadAges 40–65 - NCT06674356Recruiting
Chin tuck exercise for swallowing after stroke
This trial tests a simple neck exercise (chin tuck against resistance) to help people who have trouble swallowing after a recent stroke. The goal is to see if this exercise improves swallowing safety and strength.
TaipeiAges 18–100 - NCT06674460RecruitingPhase 3
Edaravone Dexborneol tablet for stroke recovery
This trial tests a new sublingual tablet (Edaravone Dexborneol) to help people recover after a small stroke caused by disease of the small blood vessels in the brain. It aims to see if the drug can improve thinking and daily function.
BeijingAges 30–80 - NCT06674590Recruiting
Stroke rehab: comparing two therapies for balance and walking
This study compares two different exercise-based therapies to see which one helps stroke survivors improve balance and walking better. It is for people who had a stroke more than 6 months ago and can walk a short distance with or without help.
IslamabadAges 25–65 - NCT06674785Recruiting
Shock wave therapy for shoulder spasticity after stroke
This trial tests if shock wave therapy can reduce shoulder stiffness caused by a stroke. It may help improve shoulder movement and daily comfort.
TaipeiAges 18 years+ - NCT06674980Recruiting
Testing placenta-based wound treatment for diabetic and venous leg ulcers
This trial tests if adding a special placenta-based wound covering to standard care helps heal diabetic foot ulcers and venous leg ulcers faster. It's for people with wounds that haven't healed after standard treatment for at least 4 weeks.
Metairie, LouisianaAges 18 years+ - NCT06675344Recruiting
A device for fatigue, Raynaud's, and quality of life in scleroderma
This trial tests if a device called Apollo can help reduce fatigue and Raynaud's symptoms and improve quality of life in people with scleroderma (systemic sclerosis). You would use the device at home and track your symptoms using a smartphone app.
New Orleans, LouisianaAges 18 years+ - NCT06675383Recruiting
Screening for atrial fibrillation after stroke
This trial tests whether extended monitoring can detect hidden atrial fibrillation (an irregular heartbeat) in people who have had a stroke. If found, treatment can help prevent another stroke.
Sogneprest Munthe-kaas Vei 100, GjettumAges 18 years+ - NCT06676046Recruiting
Study of rare cholesterol and fat disorders
This study looks at people with rare or unusual cholesterol, fat, or heart-related conditions. It helps researchers learn more about these disorders and improve testing. You do not need to have a known diagnosis to join initially.
Bethesda, MarylandAges 10–90 - NCT06676137Recruiting
Coronary microvascular disease study in China
This study looks at chest pain caused by tiny blood vessels in the heart that don't show up on standard angiograms. It aims to understand this condition better to help find better care.
ZhengzhouAges 18–85 - NCT06676345Recruiting
Heart Attack Complications Study
This study looks at people who have had a heart attack and developed a related structural problem in the heart (like a tear or valve issue). It aims to learn more about these complications to improve future care.
VareseAges 18 years+
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.
Other specialties
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- Genetic & congenital
- Bones, joints & muscles
- Pain
- Injuries & trauma
- Mouth & dental
- Eyes & vision
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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.