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
- NCT04873687Recruiting
ECP treatment for stable angina while waiting for heart care
This trial studies whether ECP (a non-surgical treatment that improves blood flow to the heart) can reduce symptoms in people with stable angina who may need or are waiting for heart bypass surgery, or are being managed with medicines instead. It may help you feel better and need less urgent care—if you meet the study’s medical and personal requirements.
Bandung, West JavaAges 18 years+ - NCT06043570Recruiting
Remote monitoring for pacemaker patients
This trial tests if remote monitoring of your pacemaker is as good as in-person checks. It may help you avoid frequent clinic visits.
SeoulAges 18–80 - NCT05961748Recruiting
Brain and heart illness registry for adults in China
This study is a registry that collects health information from adults who have certain new heart and/or brain conditions. It may help researchers understand how these problems occur together and improve future care planning.
Beijing, Beijing MunicipalityAges 18 years+ - NCT06045091RecruitingEarly Phase 1
BCMA-targeted CAR-NK cells for multiple myeloma or plasma cell leukemia
This trial tests an experimental therapy using immune cells (CAR-NK cells) designed to target and kill cancer cells in people with multiple myeloma or plasma cell leukemia that has returned or stopped responding to treatment. The goal is to see if it is safe and effective.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT05179616Recruiting
Study of TriClip treatment for severe leaky tricuspid valve
This study follows adults with a severely leaky tricuspid heart valve who still have symptoms despite medication. It looks at outcomes after a procedure called TriClip, which helps reduce valve leakage.
PforzheimAges 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 - NCT04310098Recruiting
CADASIL registry for confirmed patients and mutation carriers
This study builds a group “registry” of people affected by CADASIL (a genetic brain blood-vessel condition) and people who carry the NOTCH3 mutation, even if they have no symptoms. It helps researchers learn more about the condition over time and compare experiences between patients, carriers, and healthy relatives or controls.
Fuzhou, FujianAges 18–85 - NCT04318119Recruiting
Brain scan registry for small blood vessel disease
This study is a registry that collects information and brain scan findings from adults with possible small vessel disease. It may help doctors better understand how this condition looks on scans and what it is linked to.
Fuzhou, FujianAges 18–100 - NCT04606459Recruiting
Device trial for hard-to-treat heart chest pain from small vessels
This trial tests whether a small pressure-reducing device placed in a heart vein (the coronary sinus) can reduce symptoms in people with ongoing chest pain from tiny blood vessel problems. It is for angina that has not improved despite standard heart medicines, and only if special heart tests show reversible reduced blood flow.
Mainz, Rhineland-PalatinateAges 18–85 - NCT05539040Recruiting
Testing why certain heart signals trigger atrial fibrillation
This trial studies abnormal electrical signals in the right upper heart chamber and how they relate to atrial fibrillation (AF). It may help improve how doctors target AF treatment during catheter ablation for people who have AF symptoms.
LondonAges 18–85 - NCT06061549RecruitingPhase 1
Gene therapy for stiff heart failure (preserved EF)
This trial tests a one-time gene therapy for people with heart failure who still have normal pumping strength (preserved ejection fraction). It aims to improve how heart cells handle calcium, which may help the heart relax better and ease symptoms.
Durham, North CarolinaAges 50 years+ - NCT03169010Recruiting
Study registry for rare lung artery blood pressure problems
This study collects information from people with rare types of pulmonary hypertension (high blood pressure in the lungs) and from healthy volunteers. It helps researchers better understand these conditions, especially using a special lung-heart test to confirm the diagnosis.
Beijing, Beijing MunicipalityAges Any age - NCT06062693Recruiting
Home Hand Training with Sensors for Better Dexterity
This study tests a new home-based hand training system using sensors to help improve hand movement and dexterity in people with Parkinson's, multiple sclerosis, or stroke. It also includes healthy volunteers for comparison.
LucerneAges 18–99 - NCT02009345Recruiting
Study for inherited high cholesterol in families
This trial focuses on people with familial hypercholesterolemia (FH), an inherited condition that causes very high cholesterol. It aims to better understand and manage severe cholesterol problems that raise heart risk, especially in families.
Montreal, QuebecAges Any age - NCT06065852Recruiting
National registry for rare kidney diseases
This study creates a registry to collect health information from people with rare kidney diseases. It aims to improve understanding and future treatments by tracking patient experiences.
Bristol, South WestAges Any age - NCT06092736RecruitingPhase 4
Danshen pill for chest pain with normal arteries
This trial tests if a traditional Chinese medicine pill (compound Danshen dripping pill) can help people who have chest pain on exertion but whose heart arteries appear normal or nearly normal on scans. If you have this type of chest pain and fit the criteria, you may be able to join.
Jinan, ShandongAges 30–75 - NCT04988672Recruiting
Tracking outcomes after heart attacks to improve care
This study follows people after an acute heart attack (AMI) to learn what care is used and what outcomes happen over time. Your information may help doctors optimize how heart attack care is delivered in the future.
LucerneAges 18 years+ - NCT06058182Recruiting
Rna biomarkers for heart attack patients
This study looks at RNA markers in the blood of people having their first heart attack to see if they can predict recovery. If you are scheduled for a procedure to open blocked arteries, you may be able to join.
Milan, MilanAges 18 years+ - NCT06074731Recruiting
Eye imaging study using a new scanner
This trial uses a special eye scanner to look at eye diseases. It might help doctors see eye problems more clearly.
Linz, Upper AustriaAges 5–110 - NCT06075160Recruiting
RFR-guided heart artery treatment for moderate blockages
This trial uses a special pressure wire called RFR to help doctors decide whether a stent is needed for a moderate heart artery blockage. It aims to make sure only the blockages that really need treatment get stented, which may reduce unnecessary procedures.
Bucheon-si, Gyeonggi-doAges 20–90 - NCT04558931RecruitingPhase 2
NK cell therapy to help control multiple myeloma after initial treatment
This Phase 2 trial tests using your own immune cells (NK cells) alone or with isatuximab as “maintenance” treatment to help multiple myeloma stay under control after initial therapy. It may help lengthen the time until the disease grows again by boosting your immune response and targeting myeloma cells.
StockholmAges 18 years+ - NCT06069232Recruiting
Aortic valve disease risk and prognosis study
This study is looking at people with aortic valve disease to understand what factors affect their risk and to build a model that predicts how the disease will progress. Researchers hope this will help doctors better care for patients in the future.
Guangzhou, GuangdongAges 18–100 - NCT06081205Recruiting
Heart disease patients in intensive care study
This trial observes patients admitted to the cardiac intensive care unit with acute heart or blood vessel problems. It aims to learn more about their conditions and treatments.
Ioannina, EpirusAges Any age - NCT06084962RecruitingPhase 1
GPRC5D-targeted CAR-T cells for advanced multiple myeloma
This trial tests a new type of CAR-T cell therapy that targets a protein called GPRC5D on multiple myeloma cells. It is for people whose myeloma has not responded to or has returned after at least three prior treatments, and aims to see if this targeted approach can help control the disease.
Hangzhou, ZhejiangAges 18–75
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
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- Genetic & congenital
- Bones, joints & muscles
- Pain
- Injuries & trauma
- Mouth & dental
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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.