Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 10,062 recruiting studies in this area right now.
By phase
- Not applicable8,033
- Phase 2488
- Phase 4482
- Phase 3452
- Phase 1360
- Phase 1/Phase 2161
- Phase 2/Phase 386
Top conditions
- Stroke856
- Heart Failure567
- Hypertension402
- Cardiovascular Diseases390
- Coronary Artery Disease373
- Multiple Myeloma329
- Atrial Fibrillation273
- Ischemic Stroke199
- Atrial Fibrillation (AF)146
- Acute Ischemic Stroke141
- Pulmonary Hypertension103
- Myocardial Infarction98
- Congenital Heart Disease86
- Peripheral Arterial Disease85
- Stroke, Ischemic84
- Acute Coronary Syndrome82
- Obesity80
- Aortic Valve Stenosis78
Leading sponsors
- Mayo Clinic95
- Assistance Publique - Hôpitaux de Paris92
- National Taiwan University Hospital74
- China National Center for Cardiovascular Diseases59
- Beijing Tiantan Hospital53
- Massachusetts General Hospital51
- Riphah International University51
- Second Affiliated Hospital, School of Medicine, Zhejiang University51
- Insel Gruppe AG, University Hospital Bern50
- Johns Hopkins University47
Where studies are running
- California466
- Alabama199
- Massachusetts182
- Arizona176
- New York166
- Florida145
- Illinois120
- Maryland120
- Minnesota120
- Texas120
Recruiting studies10,059 total
- NCT02038127Recruiting
Health registry for people getting a drug-coated heart stent
This study follows people who need a coronary (heart) stent to see how they do after treatment. It does not sound like an experimental drug trial for you—it’s mainly about collecting health information after a stent procedure.
Chuncheon, Gangwon-doAges 19 years+ - NCT01408225Recruiting
Myeloma and amyloidosis patient data and sample registry
This study collects health information and, if needed, samples from people diagnosed with certain blood disorders related to plasma cells. Sharing your information may help researchers better understand these diseases and improve future care.
Columbus, OhioAges 18 years+ - NCT00582621Recruiting
Family history study to support genetic testing research
This study collects family and medical history to better understand inherited causes of blood cancers (like lymphoma) and related conditions. It may help researchers build genetic findings that could improve how families understand their risk and future care.
Basking Ridge, New JerseyAges Any age - NCT01893710Recruiting
Collecting children and adult belly fluid and tissue for kidney care research
This study collects samples from the belly (related to the peritoneal lining) to build a “biobank” for future research. It may help patients and families by improving understanding of kidney disease and kidney dialysis-related health issues.
Birmingham, AlabamaAges 1 day–90 years - NCT00181259Recruiting
MRI scan study of heart muscle chemistry
This trial uses a special MRI scan to look at how the heart muscle uses fuel. It may help researchers understand heart conditions like dilated cardiomyopathy and coronary artery disease, especially in people with reduced heart pumping.
Baltimore, MarylandAges 18 years+ - NCT01670383Recruiting
Study sample collection for sepsis and after cardiac arrest
This trial collects and stores small samples from people in the ICU who are either being treated for sepsis or who have survived a non-traumatic cardiac arrest. It may help researchers better understand how the body changes after severe infection or after revival, which could improve future care.
SeoulAges 16 years+ - NCT00762008Recruiting
Test blood markers to understand progression to heart failure
This study looks at blood “markers” (substances in the blood) to help explain how some people move from early heart strain to full heart failure. You may be enrolled if you have stable or worsening heart failure symptoms, or you may qualify as a healthy control for comparison.
Farmington, ConnecticutAges 18 years+ - NCT01538056Recruiting
Customized endovascular graft for abdominal aortic aneurysm
This trial tests a doctor-customized stent graft placed through the groin to treat a dangerous bulge in the lower part of the aorta (an abdominal aortic aneurysm). It may help by improving how the graft fits, based on detailed measurements of your artery anatomy and your ability to attend follow-up visits.
Seattle, WashingtonAges 18 years+ - NCT00230685Recruiting
Review of case notes for people with HHT
This study reviews past medical records (case notes) from people with hereditary hemorrhagic telangiectasia (HHT). It helps researchers understand patterns of care and outcomes, without requiring new treatment for you.
LondonAges Any age - NCT00353782Recruiting
Study of cholesterol and triglyceride problems over time
This study looks at how cholesterol and triglyceride levels change in people with dyslipidemia (unhealthy cholesterol/fat levels). Researchers want to understand what different causes mean for long-term health.
Bethesda, MarylandAges 2–100 - NCT00138931Recruiting
Study genetics of inherited heart and muscle conditions
This study looks at genetic causes of inherited heart (cardiovascular) and muscle/nerve (neuromuscular) conditions. You may be asked about your family history and possibly genetic samples to help connect symptoms to specific genetic changes.
Chicago, IllinoisAges Any age - NCT00921986Recruiting
Store heart rhythm samples for arrhythmia research
This study builds a bank of stored heart rhythm-related samples so researchers can study different heart rhythm problems. It may help you or your family contribute to future testing and better care for arrhythmias.
Cleveland, OhioAges 18 years+ - NCT01890486Recruiting
Collecting information from people having a stem cell transplant
This study aims to collect, store, and share data from patients who are receiving standard intensive treatment and a stem cell transplant from either their own cells or a donor. It may help improve how future patients are treated by building a reliable record of outcomes and care patterns.
Winston-Salem, North CarolinaAges 18–120 - NCT00733590Recruiting
Study after ICD generator replacement for heart attack patients
This study follows people who had a prior heart attack and later received a replacement ICD (a device that helps prevent sudden dangerous heart rhythms). It is observational, meaning it mainly looks at outcomes and device-related information rather than testing a new drug.
Washington D.C., District of ColumbiaAges 18–85 - NCT02038660Recruiting
Drug-coated balloon treatment registry for narrowed blood vessels
This study records outcomes for people who get a drug-coated balloon used to treat a narrowed blood vessel after a first balloon treatment. It may help doctors understand how well this approach works in everyday care and for different patient needs.
Bucheon-siAges 20 years+ - NCT01076660Recruiting
MRI study to predict sudden cardiac death risk
This trial uses heart MRI images and measurements to look for warning signs that could predict sudden cardiac death. It focuses on people with significantly reduced heart pumping function who are being considered for an ICD to prevent sudden death.
Newark, DelawareAges 21–80 - NCT00768820RecruitingPhase 4
Study brain and mental health in people with 22q11 deletion
This trial looks at how thinking and mental health (psychiatric symptoms) show up in people who have a specific chromosome deletion. It may help researchers understand patterns in this condition and improve future care.
Petah TikvaAges Any age - NCT00181233Recruiting
MRI imaging to assess sudden heart risk factors
This study tests heart imaging (using MRI) to better identify factors linked to sudden cardiac death risk. You may be eligible if you have reduced heart pumping ability and are planning a specific heart device to prevent dangerous heart rhythms.
Baltimore, MarylandAges 18 years+ - NCT01280825Recruiting
Testing how to use genetic medicine results in routine care
This study looks at how to put genetic testing results (pharmacogenomics) into regular doctor care. It aims to see whether using the results helps doctors choose safer, better-matched medications.
Chicago, IllinoisAges 18 years+ - 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+ - NCT00455104Recruiting
Fabry disease registry for Canadians and eligible adults
This study is a national registry that collects health and medical information from people with Fabry disease. It helps researchers better understand the condition and plan future care and studies.
Calgary, AlbertaAges 5–85 - NCT01967511Recruiting
Study to better understand fibromuscular dysplasia
This trial studies people with fibromuscular dysplasia (FMD) and related conditions to learn what causes them and how they behave over time. You may also be able to join if you are a healthy person matched by age and gender to help compare results.
New York, New YorkAges 18 years+ - NCT02050113Recruiting
Custom endograft repair for complex aortic aneurysms
This trial tests custom-made and doctor-modified grafts to treat complex bulges in the aorta (the body’s main artery) or the part going into the pelvis. It may help people who cannot use standard approved devices or who need treatment urgently because waiting is unsafe.
Worcester, MassachusettsAges 18 years+ - NCT01091480Recruiting
French heart ultrasound study for hypertrophic cardiomyopathy
This is an observational study (it mainly tracks what happens over time) for people with thickened heart muscle due to hypertrophic cardiomyopathy. You may be eligible if an echocardiogram (heart ultrasound) shows the required thickness and you don’t have certain heart valve disease.
ParisAges 15 years+
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 10,062 recruiting cardiology studies from the U.S. registry right now, out of 15,523 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.