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
- NCT07551947Enrolling by invitation
Insulin Resistance and Heart Rhythm Ablation Success
This study examines whether how your body handles insulin (a hormone that controls blood sugar) affects the success of a new ablation procedure called pulsed field ablation, which treats irregular heart rhythms. Researchers want to understand which patients benefit most from this treatment.
TřinecAges 18 years+ - NCT07555574Recruiting
New imaging technology to see retinal structures clearly
This research study tests a new camera technology that takes detailed pictures of the back of your eye (retina) to better understand eye diseases. Researchers want to compare images from people with eye conditions like diabetes-related eye disease, glaucoma, or age-related macular degeneration with healthy volunteers to see how the new imaging works.
Melbourne, VictoriaAges 18 years+ - NCT07556133Recruiting
Comparing two sedation medicines during cataract surgery
This study tests two sedation medicines (dexmedetomidine and propofol) used to keep patients calm and comfortable during cataract surgery. Researchers want to see which combination works best and is safest for this common procedure.
BeirutAges 18 years+ - NCT07559253Recruiting
Heart Care Transition Education Led by Nurses or Doctors
This study tests whether nurse-led or doctor-led education helps young people with congenital heart disease (a heart condition present from birth) transition from pediatric to adult care. The goal is to make this transition smoother and more accessible for all patients, including those with disabilities.
Madison, WisconsinAges 12–26 - NCT07559630Recruiting
Artery Blocking vs Rubber Bands for Internal Hemorrhoids
This trial compares two treatment methods for internal hemorrhoids that haven't improved with diet, fiber, or creams. One method blocks blood flow to the hemorrhoids using a catheter (a thin tube); the other uses rubber bands to cut off blood supply. Both are minimally invasive procedures.
Los Angeles, CaliforniaAges 18–89 - NCT07556887Recruiting
Using IMPROVE to Choose Carotid Artery Treatment After Stroke
This study tests whether a new tool called IMPROVE helps doctors decide if you need surgery or a stent to clear a narrowed carotid artery (a major neck blood vessel) after a recent stroke or mini-stroke. The goal is to better predict which patients will benefit most from this treatment.
Arnhem, GelderlandAges 18 years+ - NCT07554638RecruitingPhase 4
Incretin drugs for heart failure with obesity
This trial tests whether incretin-based diabetes medications (like GLP-1 drugs) can help people with a specific type of heart failure called HFpEF that is linked to obesity. The goal is to see if these drugs improve heart function and symptoms.
New York, New YorkAges 40 years+ - NCT07552948Recruiting
Radial vs. Vein Grafts for Heart Bypass Surgery
This study compares two types of blood vessels used in heart bypass surgery: the radial artery (from your forearm) versus a vein (typically from your leg). Researchers want to see which graft option works better and lasts longer in women with severe heart disease.
TomskAges 18 years+ - NCT07552636Recruiting
Monitoring Giant Cell Arteritis During Treatment Tapering
This study tracks patients with giant cell arteritis (GCA, a blood vessel inflammation affecting older adults) who are in remission and tapering their steroid medications. Researchers will monitor disease activity through blood tests and patient questionnaires to understand if their condition stays stable as they reduce treatment.
AalborgAges 50 years+ - NCT07552610Recruiting
Sivelestat sodium added to clot removal surgery for stroke
This trial tests whether adding a medication called sivelestat sodium to emergency clot removal surgery (mechanical thrombectomy) can improve outcomes in patients with a specific type of stroke caused by a large blood clot in the front part of the brain. The goal is to see if this combination treatment leads to better recovery.
Weifang, ShandongAges 18–80 - NCT07555652Recruiting
Cooling treatment for newborns with birth-related brain injury
This trial studies whether cooling a newborn's body after a difficult birth helps prevent brain damage. Researchers will track babies treated with this cooling therapy and use brain imaging to see how well it works.
Ha Nội, HanoiAges birth–6 hours - NCT07556991RecruitingPhase 2/Phase 3
Infection's Role in Chronic Brain Bleeding
This study investigates whether infection contributes to chronic subdural hematoma, a condition where blood collects between the brain and skull. Researchers will study patients undergoing surgery to understand infection's involvement and potentially improve treatment.
RostockAges 18 years+ - NCT07558174Recruiting
Monitoring blood flow during leg artery surgery with imaging
This study tests a special imaging camera that measures blood flow in your leg before, during, and after surgery to improve the artery. The goal is to help doctors see in real time whether the surgery is working properly.
Leiden, South HollandAges 18 years+ - NCT07554235Recruiting
Acupuncture for better sleep in seniors with diabetes and high blood pressure
This trial tests if acupuncture given by village doctors can help older adults with both diabetes and high blood pressure sleep better. It aims to improve sleep quality without using sleep medications.
Taizhou, JiangsuAges 65 years+ - NCT07552571Recruiting
Goal Setting and Healthy Habits for Chronic Disease
This study tests whether setting personal health goals and using a smartphone app helps people with long-term conditions like high blood pressure, diabetes, or high cholesterol stay healthier and more active. You'll participate in group activities designed to help you commit to and achieve your own health goals.
Wuhan, HubeiAges 45 years+ - NCT07559006Recruiting
Shoulder Pain After Stroke and Its Effects on Arm Function
This study looks at how shoulder pain affects arm movement, balance, and daily activities in people who've had a stroke. Researchers want to understand the connection between shoulder pain and physical recovery after stroke.
Kütahya, KütahyaAges 18–80 - NCT07557108Recruiting
Nerve Blocks to Improve Recovery After Heart Surgery
This study tests whether special numbing injections around nerves in the chest wall (fascial plane blocks) help patients recover better and have less pain after open-heart surgery. The goal is to see if this technique improves how you feel and function in the days after your operation.
Ordu, AltinorduAges 18–70 - NCT07556068Recruiting
Brain Blood Flow Recovery After Stroke Clot Removal
This study enrolls people who had an acute ischemic stroke (caused by a blood clot) and received emergency treatment to remove the clot. Researchers want to understand why some patients recover well while others don't, by measuring how the brain regulates its own blood flow after treatment.
Beijing, Beijing MunicipalityAges 18 years+ - NCT07557225Recruiting
New PET Scan for Detecting Multiple Cancer Types
This study tests a new type of PET scan (a specialized imaging test) that may better detect certain cancers by looking for a specific marker found on many tumor types. The scan uses a new tracer called 18F-T2 to help doctors see cancer more clearly.
Beijing, Beijing MunicipalityAges 18 years+ - NCT07556523RecruitingPhase 4
Recovery quality after heart valve replacement with different sedation
This study compares how well patients recover after a minimally invasive heart valve procedure (TAVR) when given different types of sedation. The goal is to find which sedation approach helps patients feel better and recover faster after the procedure.
Glenview, IllinoisAges 18–90 - NCT06465043Recruiting
Understanding Heart Failure When the Heart Stiffens
This study is for people with a type of heart failure called HFpEF, where the heart pumps normally but doesn't relax well. It aims to better understand heart failure through advanced testing, and it includes people who are newly diagnosed or have had a recent hospitalization.
HelsinkiAges 18–85 - NCT07551492RecruitingPhase 3
New medicine for people with heart and blood vessel disease
This study tests an investigational medicine called HRS9531 for people with atherosclerotic cardiovascular disease (a buildup of plaque in the arteries that can lead to heart attacks and strokes). The trial aims to see if the medicine helps reduce risks in this condition.
Beijing, Beijing MunicipalityAges 18 years+ - NCT07557498Recruiting
Mavacamten Outcomes and Experiences in Heart Muscle Disease
This study looks at how mavacamten (a heart medication) works for people with obstructive hypertrophic cardiomyopathy (HCM)—a condition where heart muscle becomes too thick. Researchers will review medical records and ask patients about their experiences with the treatment.
Bollington, MacclesfieldAges 18 years+ - NCT07558915RecruitingPhase 1
Testing RO7851624 for Relapsed Multiple Myeloma
This Phase 1 trial tests a new drug called RO7851624 in patients whose multiple myeloma has come back or stopped responding to prior treatments. The goal is to understand how safe and effective this drug is.
Parkville, VictoriaAges 18 years+
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.
Other specialties
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- Genetic & congenital
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- Pain
- Injuries & trauma
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- 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.