Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,989 recruiting studies in this area right now.
By phase
- Not applicable7,969
- Phase 2481
- Phase 4481
- Phase 3447
- Phase 1361
- Phase 1/Phase 2163
- Phase 2/Phase 387
Top conditions
- Stroke845
- Heart Failure564
- Hypertension400
- Cardiovascular Diseases389
- Coronary Artery Disease370
- Multiple Myeloma332
- Atrial Fibrillation267
- Ischemic Stroke200
- Atrial Fibrillation (AF)141
- Acute Ischemic Stroke139
- Pulmonary Hypertension100
- Myocardial Infarction99
- Congenital Heart Disease86
- Stroke, Ischemic85
- Peripheral Arterial Disease83
- Acute Coronary Syndrome82
- Obesity80
- Aortic Valve Stenosis79
Leading sponsors
- Mayo Clinic94
- Assistance Publique - Hôpitaux de Paris91
- National Taiwan University Hospital74
- China National Center for Cardiovascular Diseases59
- Beijing Tiantan Hospital52
- 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
- California466
- Alabama197
- Massachusetts182
- Arizona173
- New York162
- Florida144
- Maryland120
- Minnesota120
- Illinois119
- Texas118
Recruiting studies9,986 total
- NCT06175325Recruiting
Embolization for hemorrhoids: a procedure without surgery
This trial tests a minimally invasive procedure called embolization (blocking the blood supply) to treat hemorrhoids that bleed or come back. It may be a good option if you want to avoid surgery.
Stoke-on-TrentAges 18 years+ - NCT06175104Recruiting
HeartGPS: Support for parents after a prenatal heart diagnosis
This study tests a counseling program for parents whose unborn baby has a serious heart condition called single ventricle. The program aims to help parents manage stress and support their baby's development before and after birth.
Los Angeles, CaliforniaAges 18 years+ - NCT06175715Recruiting
General vs. local anesthesia for carotid artery surgery after stroke
This trial compares two types of anesthesia for people who need surgery to clean out a blocked carotid artery after a recent stroke. It aims to see which anesthesia method leads to better recovery after the surgery.
MoscowAges 40–80 - NCT06176131Recruiting
Telemedicine support for heart failure after hospital
This study tests a care program that uses telemedicine to help people with serious heart failure stay stable after leaving the hospital. It focuses on those who needed multiple hospital stays recently.
FrederiksbergAges Any age - NCT06177743Recruiting
Coroflex NEO heart stent study
This study monitors patients who receive a Coroflex ISAR NEO stent to track how well it works over time. It helps doctors understand the safety and effectiveness of this specific stent.
Seoul, Songpa-guAges 19 years+ - NCT06178419Recruiting
Remote Conditioning for Brain Ischemia in Takayasu Arteritis
This trial tests whether gentle, repeated blood pressure cuff inflations on the arm can improve blood flow to the brain in people with Takayasu arteritis. It's for those with inactive disease and narrowed brain arteries but who still have low brain blood flow.
Beijing, Beijing MunicipalityAges 18–65 - NCT06179212Recruiting
Comparing exercise tests for men and women with heart disease
This study compares two different exercise test methods to see which works better for men and women with heart disease. The goal is to find a test that can help doctors design better exercise programs for you.
Ottawa, OntarioAges 18 years+ - NCT06178887Recruiting
Cardiac MRI for heart and blood vessel issues in Turner syndrome
This study uses cardiac MRI to look for heart and blood vessel differences in adults with Turner syndrome. It may help find problems early so you can get the right care.
ModenaAges 18 years+ - NCT06179329Recruiting
Comparing two types of heart bypass grafts in women
This trial compares two types of grafts (the radial artery from the arm and a vein from the leg) used in women having heart bypass surgery for the first time. It aims to see which graft works better and stays open longer.
São Paulo, São PauloAges 18–75 - NCT06180902Recruiting
Testing fluid response methods in patients with reduced consciousness
This trial compares different ways to check if a patient in the ICU with lowered consciousness needs more IV fluids. It aims to find the most accurate method, which could help doctors give the right amount of fluid.
MoscowAges 18 years+ - NCT06180603Recruiting
Draining lung fluid safely in the ER
This trial tests a better way to drain fluid from around the lung while you are in the emergency department. It can help you breathe easier and find out what is causing the fluid buildup.
Aarhus, Central JutlandAges 18 years+ - NCT06181994Recruiting
Middle meningeal artery embolization for chronic subdural hematoma
This trial looks at how well a procedure called middle meningeal artery embolization works for people with chronic subdural hematoma (a collection of old blood on the brain's surface). It uses specific materials to block the blood supply to the hematoma, which may help the body reabsorb it without surgery.
Coral Gables, FloridaAges 18 years+ - NCT06182683Recruiting
OCT-Guided vs. FFR-Guided Stent Placement in Heart Disease
This trial compares two imaging and pressure tests used during stent placement to see which helps improve blood flow better in people with chest pain or a recent heart attack.
SeoulAges 19 years+ - NCT06182774RecruitingPhase 3
Fixed vs ongoing treatment for older adults with new myeloma
This trial compares stopping treatment after a set number of cycles versus continuing it for people over 65 or those who cannot have a stem cell transplant. It tests whether a fixed treatment period works as well as long-term treatment for newly diagnosed multiple myeloma.
Edmonton, AlbertaAges 18 years+ - NCT06183307Recruiting
Nattokinase for heart health in people with high cholesterol
This trial tests whether nattokinase, a natural enzyme, can reduce inflammation and improve heart health in people with high cholesterol or high triglycerides. If you have elevated LDL or triglycerides, you may be eligible even if you are already taking cholesterol medication.
Rio de Janeiro, Rio de JaneiroAges 18 years+ - NCT06184633RecruitingPhase 4
Weight control in atrial fibrillation study
This study tests if a weight management program helps people with a new type of irregular heartbeat (atrial fibrillation) and obesity. It aims to see if losing weight can improve heart rhythm and reduce the need for further treatment.
Arnhem, GelderlandAges 18 years+ - NCT06185530Recruiting
Comparing stress echo vs CT scan for chest pain
This trial compares two heart imaging tests (stress echo with ultrasound of the neck, and a CT scan) to see which one better helps guide treatment for people with chest pain that might be from heart disease. If you have chest pain that is typical for heart disease, you may be able to join.
Harrow, MiddxAges 18 years+ - NCT06185751RecruitingPhase 1
Testing CS1 CAR-T for multiple myeloma
This study tests a new cell therapy called CS1 CAR-T, which helps your immune system attack myeloma cells that still grow after several other treatments. It's for people who have already tried at least three different types of therapy.
St Louis, MissouriAges 18 years+ - NCT06186037RecruitingPhase 4
Lower-dose combo vs. higher-dose alone for heart artery disease
This trial compares a lower-dose cholesterol pill (rosuvastatin plus ezetimibe) to a higher-dose version of just rosuvastatin for people with mild to moderate heart artery blockages who have not had a stent or bypass. It aims to see which approach works better and is safer.
Suwon, Gyeonggi-doAges 19 years+ - NCT06186973Recruiting
Fetal and newborn heart assessment during labor
This study checks how well a baby's heart works during labor and right after birth. It uses a special monitor (CTG with STAN) to see if the baby's heart responds normally to the stress of labor.
OsloAges birth–1 hour - NCT06187012Recruiting
Long-term heart health after pregnancy
This study checks if having high blood pressure years after pregnancy is linked to long-term health. It involves a visit and possibly an MRI scan of your heart and blood vessels.
OxfordAges 30–70 - NCT06187077Recruiting
Techquity by FAITH study for African Americans
This study tests a smartphone app to help African American adults live healthier. It looks at how digital health tools can improve fruits and vegetables intake and physical activity.
Rochester, MinnesotaAges 18 years+ - NCT06187155Recruiting
How education level affects warfarin self-management
This study looks at how a person's education level affects their ability to manage their own blood-thinning medication (like warfarin). It aims to see if more education leads to better health outcomes.
AswānAges 18 years+ - NCT06187025Recruiting
Addiction & Stroke: Smartphone tool for prevention
This study tests whether a smartphone tool can help people who have had a stroke make healthier choices to prevent another one. It specifically looks at how the tool might help manage addiction-related risks.
BordeauxAges 18–80
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,989 recruiting cardiology studies from the U.S. registry right now, out of 15,300 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.