Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,609 recruiting studies in this area right now.
By phase
- Not applicable7,632
- Phase 4472
- Phase 2469
- Phase 3439
- Phase 1350
- Phase 1/Phase 2160
- Phase 2/Phase 387
Top conditions
- Stroke797
- Heart Failure534
- Hypertension388
- Cardiovascular Diseases373
- Coronary Artery Disease363
- Multiple Myeloma327
- Atrial Fibrillation259
- Ischemic Stroke190
- Atrial Fibrillation (AF)154
- Acute Ischemic Stroke139
- Pulmonary Hypertension104
- Myocardial Infarction97
- Congenital Heart Disease84
- Peripheral Arterial Disease79
- Stroke, Ischemic78
- Aortic Valve Stenosis76
- Obesity74
- Acute Coronary Syndrome73
Leading sponsors
- Mayo Clinic93
- Assistance Publique - Hôpitaux de Paris88
- National Taiwan University Hospital68
- 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
- California453
- Alabama196
- Arizona181
- Massachusetts173
- New York168
- Florida140
- Texas122
- Maryland118
- Minnesota117
- Illinois112
Recruiting studies9,609 total
- NCT01364168Recruiting
Study of new stroke patients and what happens next
This study follows people after a first acute ischemic stroke (a blockage-related stroke) to learn what to expect in the days and months after. Your participation could help doctors better understand recovery and outcomes and improve future care.
BerlinAges 18 years+ - NCT06090591Recruiting
Heart condition research registry at Dubrava Hospital
This study is a registry that will collect information from people with certain heart conditions (like having a pacemaker, a blood clot, a heart attack, or a valve replacement procedure called TAVI). The goal is to learn more about these conditions and how they are treated.
ZagrebAges 18 years+ - NCT06013020RecruitingPhase 4
Blood thinner to prevent heart clots after a heart attack
This trial tests a blood thinner, rivaroxaban, to see if it can prevent blood clots from forming in the heart after a specific type of heart attack (STEMI) that affects the front part of the heart.
Zunyi, GuizhouAges 18–75 - NCT04905160Recruiting
Care planning after hospital stays to reduce readmissions
This study tests a care-coordination plan to see if it helps people leave the hospital and prevents them from needing to come back soon. It focuses on certain heart-related hospital diagnoses and, for some parts, also includes people with recent COVID-19.
Phoenix, ArizonaAges 18 years+ - NCT06283888RecruitingPhase 4
Choosing a blood thinner based on your genes after complex heart treatment
This trial tests whether choosing a blood thinner based on your DNA can prevent more heart problems. If you've had a complex heart procedure, you may be able to get a medication that works best for your body.
Zunyi, GuizhouAges 18–80 - NCT05706194Recruiting
Early brain prognosis test after out-of-hospital cardiac arrest
This trial studies how to predict brain recovery early after a non-traumatic out-of-hospital cardiac arrest. The goal is to help clinicians estimate outcome sooner, which may improve decision-making during intensive care.
HelsinkiAges 18–100 - NCT05570552Recruiting
Testing health impacts in adults from smoky, arsenic-exposed homes
This study follows adults who took part in an earlier GEOHEALTH study and live in homes that use traditional stoves, with low-to-moderate arsenic exposure in drinking water. It aims to understand how these environmental factors affect health, and what changes might be possible.
DhakaAges 25–70 - NCT06270667Recruiting
Exercise training for lymphoma survivors
This study tests whether a supervised exercise program can improve heart health in people who finished treatment for Hodgkin or aggressive non-Hodgkin lymphoma 2–5 years ago. The goal is to see if regular exercise helps your heart recover better after chemotherapy or chest radiation.
OsloAges 20–70 - NCT06310148Recruiting
Preventing chronic disease in Hong Kong adults aged 45+
This study looks at a new program in Hong Kong that helps people without diabetes or hypertension learn how to prevent or manage chronic diseases. One group gets extra support through a local health centre, and the other group follows usual care.
Hong KongAges 45 years+ - NCT06324682Recruiting
Comparing heart pacemaker types for better treatment
This trial looks at different ways to pace the heart (like left, right, or both sides) to see which works best for people who need a pacemaker. If you have a heart condition requiring a pacemaker, this study may help find the safest and most effective option for you.
Ferrara, FEAges 18 years+ - NCT06324981Recruiting
AI text messages to help your heart health
This study tests if text messages from an AI program can help you improve your heart health habits, like taking medication on time and managing blood pressure, cholesterol, or diabetes.
Denver, ColoradoAges 18–89 - NCT06325618Recruiting
Studying lymphedema and blood vessels in Turner syndrome
This study looks at swelling (lymphedema), inflammation, and blood vessels in women with Turner syndrome. It uses MRI scans to understand these issues better.
Aarhus NAges 18–100 - NCT05728580Recruiting
Study of PCI results at Beijing Friendship Hospital
This trial is for adults who already had a PCI procedure for coronary heart disease and had a successful result. The study looks at how PCI was done in practice and may help improve future treatment and follow-up.
Beijing, Beijing MunicipalityAges 18 years+ - NCT04703842RecruitingPhase 1/Phase 2
Study drug effect on heart muscle calcium in advanced heart failure
This trial tests a treatment intended to improve how heart muscle cells handle calcium, which may help heart failure symptoms and heart function. It is mainly for people with advanced heart failure and a low pumping strength of the heart.
San Diego, CaliforniaAges 18–80 - NCT03962023Recruiting
Study of heart ultrasound features in mitral valve leakage
This study looks at how findings on a standard heart ultrasound (transthoracic echocardiography) can predict outcomes for adults with mitral valve leakage caused by valve prolapse. It may help doctors better understand which ultrasound features matter most, using past and future medical records.
Lomme, NordAges 18 years+ - NCT06059053Recruiting
Study of the Semibranch device for aortic problems
This study is testing a new stent-graft device (Semibranch) to treat aneurysms or other problems in the main artery near the kidneys or in the chest and belly. It follows patients who get this treatment to see how well it works.
MünsterAges 18 years+ - NCT06332989Recruiting
Improving stroke triage by ambulance paramedics
This trial tests a new way for paramedics to quickly identify and prioritize stroke patients before they reach the hospital, which could help get you the right treatment faster.
LeidenAges 18 years+ - NCT06333327Recruiting
Atrial fibrillation ablation with a balloon catheter registry
This study is collecting data on people having a procedure called catheter ablation for atrial fibrillation using a special radiofrequency balloon. The goal is to see how well it works and to help improve future treatments.
BrusselsAges 18–85 - NCT06337578Recruiting
Telephone-based cognitive screening study
This study tests if a phone-based cognitive screening can effectively assess thinking and memory. It may help people who can't easily visit a clinic.
MilanAges 18–100 - NCT04691037Recruiting
CT heart scan to guide care for stable chest pain
This trial studies whether a CT heart scan (CCTA) can better guide treatment decisions for people with stable chest pain caused by blocked heart arteries. It may help your care team choose the next best step based on scan results.
Beijing, Beijing MunicipalityAges 18 years+ - NCT06160921Recruiting
Predicting high blood pressure outcomes
This study is building a tool to predict how high blood pressure (primary hypertension) may progress over time. Researchers at Xinjiang Medical University will use health information from patients to create this model, which could help doctors tailor treatment.
Ürümqi, XinjiangAges Any age - NCT06338878Recruiting
Heart failure hospitalization study: tracking long-term outcomes
This study looks at what happens to people after they are hospitalized for heart failure. It tracks their health both in the hospital and after they go home to learn how to improve care.
NancyAges 18 years+ - NCT06340516Recruiting
Looking at a blood test to track heart health during HER2 breast cancer treatment
This trial is checking if a simple blood test (NT-proBNP) can help spot early signs of heart side effects from certain breast cancer treatments (chemotherapy plus HER2 blockers). If successful, it might help doctors adjust treatment sooner to protect your heart.
GothenburgAges 18 years+ - NCT06342661Recruiting
VISTA protein in blood vessel-related memory problems
This study measures levels of a protein called VISTA in the blood of people with memory problems caused by blood vessel disease. It aims to see if VISTA can help diagnose or predict this condition.
Harbin, HeilongjiangAges 50–80
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,609 recruiting cardiology studies from the U.S. registry right now, out of 14,617 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.