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
- NCT05380622Recruiting
CT scan to study plaque and blood flow in heart disease
This study uses a special heart CT scan (coronary CT angiography) to look at plaque and how blood flows in people with coronary artery disease. It may help match your scan results with heart measurements and guide future care decisions.
ShanghaiAges 18 years+ - NCT05337319Recruiting
Registry for people in the hospital with coronary artery disease
This study keeps a careful record of what care people with coronary artery disease receive while they are hospitalized. It may help doctors improve future treatment by showing what is happening in real-world practice.
BeijingAges 18 years+ - NCT04011527Recruiting
Registry for heart stent procedure using rotational atherectomy
This study collects information from people who are having a heart procedure called rotational atherectomy to open blocked heart arteries. It helps doctors better understand how the procedure is used and its outcomes.
Bad SegebergAges 18–100 - NCT04755842Recruiting
Study of severe tricuspid valve leakage in Hamburg
This study focuses on people with severe “tricuspid regurgitation,” which means a valve in the right side of the heart leaks backward. It collects information (including interviews) to better understand this condition and what to do next.
HamburgAges 18 years+ - NCT05397392Recruiting
Diagnosis and treatment plan for heart–kidney problems
This study looks at the best way to diagnose and treat different types of heart-and-kidney problems that happen together. It may help you (or your caregiver) get the right classification and treatment approach based on how your heart and kidneys are affected.
NanjingAges 18 years+ - NCT03192774Recruiting
Prospective heart valve treatment registry for TAVI patients
This study is a real-world registry that collects information from people who receive TAVI, a procedure to treat a damaged heart valve. It may help doctors understand outcomes and improve care, even though it isn’t testing a new drug.
Bad SegebergAges 18–100 - NCT05378308Recruiting
Tracking blood thinner use in people with AF or blood clots
This registry study looks at how people with atrial fibrillation (AF) or blood clots (VTE) use blood thinners, especially NOACs, over time. It may help doctors better understand real-world patterns of treatment and outcomes.
Zhengzhou, HenanAges Any age - NCT05415332Recruiting
Tracking outcomes for cardiogenic shock in ICU
This study looks at how people with cardiogenic shock (or very low blood pressure from heart causes) do after treatment in a specialized cardiovascular ICU. It also examines whether care by heart critical-care specialists affects outcomes.
SeoulAges 19 years+ - NCT05421767RecruitingPhase 4
Renal nerve stimulation for hard-to-control high blood pressure
This trial tests whether stimulating nerves around the kidney can lower blood pressure in people whose high blood pressure stays uncontrolled despite treatment. It may help by improving how the kidneys and blood vessels regulate blood pressure.
TaipeiAges 20 years+ - NCT05444452Recruiting
Stent treatment study for blocked heart arteries
This study tests a coronary stent approach for people with significantly blocked heart arteries. It may help by improving blood flow, and it compares treatment in a structured way while monitoring safety and outcomes.
SeoulAges 19 years+ - NCT03362164Recruiting
Studying heart involvement in people with Fabry disease
This study looks at how the heart is affected in adults with Fabry disease. It may help doctors better understand heart-related changes in order to guide care.
Würzburg, BavariaAges 18 years+ - NCT05023564Recruiting
Dementia care study following people with a steady caregiver
This study follows people diagnosed with dementia over time, with the help of a consistent caregiver, to better understand how dementia changes. It may help by adding new information that could improve future care and planning for families.
BeijingAges 18 years+ - NCT03399929Recruiting
Tracking long-term recovery after brain injury or stroke
This study looks at how people do over the long term after a stroke or a traumatic brain injury (brain injury from an accident). It may help researchers understand recovery and improve future support and care.
Encino, CaliforniaAges 18 years+ - NCT03789916RecruitingPhase 3
Aspirin alone versus two blood thinners after heart bypass
This Phase 3 trial compares two strategies to prevent blood clots after heart bypass surgery: aspirin alone versus aspirin plus ticagrelor. It aims to see which approach works better and is safer for people whose bypass does not fully restore blood flow.
RomeAges 18 years+ - NCT05509010Recruiting
AI registry using CT scan to assess coronary artery disease
This trial builds and tests an AI system using information from a heart CT scan to help evaluate coronary artery disease (clogged heart arteries). If you need a CT coronary angiography for medical reasons, this may help improve how such scans are analyzed and used in care.
SingaporeAges 21–80 - NCT04824482Recruiting
Robot training to improve walking after a recent stroke
This study tests a robot-assisted walking program for people recovering after an acute ischemic stroke. It aims to improve how safely and independently you can walk during recovery.
OlomoucAges 18–80 - NCT05486000Recruiting
Testing a device to help chronic left heart failure
This trial studies a small implant (an “atrial shunt” device) to improve symptoms and heart function in people with chronic left heart failure that stays active despite standard medicines. It focuses on whether the implant is safe and can help you feel better and possibly breathe easier.
Nantong, JiangsuAges 18 years+ - NCT05490901Recruiting
Test exercise heart pressure measurements with an ultrasound
This study looks at how well two heart tests taken during exercise—direct heart pressure measurement and an ultrasound—can explain shortness of breath with activity. It may help doctors better diagnose what’s causing your symptoms.
SeoulAges 19 years+ - NCT05281887Recruiting
Study of eye changes after ischemic stroke
This trial looks at how changes in the retina (the light-sensing tissue in the back of the eye) track with vision and eye function after an ischemic stroke. The goal is to understand which eye changes are linked to the stroke, which could help doctors monitor recovery.
Guangzhou, GuangdongAges 18 years+ - NCT05493514Recruiting
Robotic training program for walking and balance
This trial studies whether a robotic training system (called G-EO) can help people with neurological conditions improve walking and balance. It may help by testing which factors predict who benefits most, and it requires regular training sessions.
MilanAges 18 years+ - NCT05476627Recruiting
Study risk factors for kidney disease from metabolic conditions
This study looks at risk factors and body “omics” information (like blood/tissue patterns) to better understand chronic kidney disease caused by metabolic diseases. It may help researchers find better ways to predict or manage kidney problems in people with these conditions.
Beijing, Beijing MunicipalityAges 18–80 - NCT05106270Recruiting
Atrial pressure changes around a heart procedure for atrial fibrillation
This trial studies how changing pressure in the heart’s upper chamber before and after a combined heart procedure affects outcomes in people with atrial fibrillation. It may help guide safer, more effective care for patients who need left atrial appendage closure (a way to reduce stroke risk).
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT05504928Recruiting
School program to prevent hidden heart valve disease
This study tests whether a prevention program done at a specific school can reduce how common “latent” (hidden) rheumatic heart disease is in children. If you attend the study’s school in Tulsipur, this program may be offered to help protect students’ heart health over time.
Tulsi̇̄purAges 5–16 - NCT01737528Recruiting
Transcatheter heart valve therapy registry for adults
This registry collects information from adults who receive a less invasive heart valve procedure (done through a catheter). The goal is to learn how these treatments work in real-world patients and care over time.
Washington D.C., District of ColumbiaAges 18 years+
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.