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
- NCT05266092Recruiting
Study kidney disease immune system activity in dialysis patients
This study looks at how the body’s defense systems (immune system and related signals) behave in people with chronic kidney disease. It may help doctors understand what is driving inflammation and related complications in dialysis patients.
OdenseAges 18 years+ - NCT04457544Recruiting
Registry for people with newly diagnosed SCAD
This is a national Swiss registry that collects information about people who have been newly diagnosed with spontaneous coronary artery dissection (SCAD) or diagnosed within the last 5 years. Your participation can help doctors better understand SCAD and improve future care.
GenevaAges 18 years+ - NCT05620030Recruiting
Testing care plans for single-heart (univentricular) defects
This study follows people with a single-ventricle (univentricular) heart defect who need a multi-step treatment leading to the Fontan procedure. It aims to better understand how this staged care should be delivered and monitored over time.
ErlangenAges 6–60 - NCT04525144RecruitingPhase 2
Test EGb 761 for mild memory loss with brain blood vessel disease
This trial studies EGb 761 to see if it can improve symptoms in people with mild cognitive impairment (early memory/thinking changes) who also have signs of brain blood vessel disease. It may help by targeting the brain changes seen on scans.
SingaporeAges 45–85 - NCT04487340Recruiting
Online database for people with acute stroke care
This study sets up an online database to track people who have had a stroke soon after it happens. The goal is to understand and improve how stroke care quality is evaluated.
Hangzhou, ZhejiangAges Any age - NCT05629000Recruiting
Study of treatment planning after carotid artery narrowing
This study looks at an approach to better plan treatment for people with significant narrowing of the carotid artery (the main artery to the brain). It may help doctors choose safer, more effective care after surgery.
Beijing, Beijing MunicipalityAges 18 years+ - NCT05629104Recruiting
Predicting long-term outcomes after aortic valve procedure
This study follows people who have aortic valve treatment to better predict how they will do in the long term. It may help doctors understand what outcomes to expect after the procedure and improve future care.
UppsalaAges 18 years+ - NCT04188808Recruiting
Study comparing patients with artery disease before surgery
This study looks at people with blocked leg arteries who are having planned (elective) open surgery for symptoms like leg pain when walking or at rest. It aims to better understand what to expect in these patients and how to compare outcomes between groups.
GothenburgAges Any age - NCT05517291Recruiting
Compare two stent types for blocked thigh artery disease
This trial compares a special drug-coated balloon/stent strategy versus a standard stent approach for people with blocked thigh artery segments. It aims to improve how long the artery stays open and reduces repeat procedures.
BeijingAges 18–85 - NCT05594797RecruitingPhase 2
BCMA CAR-T for multiple myeloma that came back or stopped working
This trial tests a one-time BCMA CAR-T cell treatment for people with multiple myeloma that relapsed or did not respond well to prior treatments. It may help by training your own immune cells to recognize and attack myeloma cells.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT04709900Recruiting
Tests for stable chest pain using heart scans and pressure measurements
This trial studies how well different heart tests (imaging the blood flow and measuring blood pressure in the heart) work for people with stable chest pain. It may help guide safer, more accurate evaluation when you are not having a heart attack.
CopenhagenAges Any age - NCT04355975Recruiting
Study follow-up outcomes after a lung blood clot
This trial looks at how people do after an acute pulmonary embolism (a blood clot in the lungs). It aims to understand real-world outcomes over follow-up and may help improve how care teams track patients after treatment.
Bern, Canton of BernAges Any age - NCT04559243Recruiting
Left atrial appendage closure to prevent stroke in AF
This study tests whether closing a heart pocket called the left atrial appendage can lower future stroke or other clot-related events in people with atrial fibrillation. It’s mainly for people who have had a prior clot-related event or are at higher risk but may not be good candidates for long-term blood thinners.
Jinan, ShandongAges 18 years+ - NCT05619068Recruiting
Study tracking outcomes in Moyamoya disease
This study looks at how Moyamoya disease changes over time and what predicts outcomes. It uses approved brain imaging and, likely, thinking/memory tests to understand prognosis.
Beijing, Beijing MunicipalityAges 10–60 - NCT04594837Recruiting
Robotic ankle device therapy after stroke-related foot drop
This study tests a robotic ankle device to help improve walking in people after a stroke who still have foot drop (the foot doesn’t lift well). It may help strengthen or retrain walking patterns during recovery.
Baltimore, MarylandAges 18 years+ - NCT05346094Recruiting
MRI measurements of normal heart values
This study uses heart MRI scans to create “normal” heart measurement ranges for people who don’t have heart disease. This can help doctors better spot abnormal heart changes in the future.
Beijing, Beijing MunicipalityAges Up to 80 years - NCT02558699Recruiting
Virtual mapping guided catheter ablation for atrial fibrillation
This trial tests whether a “virtual” computer map created from your heart scans can help doctors do catheter ablation to treat atrial fibrillation (AF). It aims to improve the procedure for people whose AF symptoms were not controlled well with anti-arrhythmia medicines.
SeoulAges 19–80 - NCT05667519Recruiting
Ultrasound-guided pacemaker lead placement to prevent valve leak
This trial tests a way to place a pacemaker lead using a special ultrasound view through the esophagus (a transesophageal echocardiogram). The goal is to reduce the chance of developing a serious leak in the tricuspid valve caused by the pacemaker lead.
Munich, BavariaAges 18 years+ - NCT05672706Recruiting
Pressure wave test for people with angina
This study looks at how a pressure waveform in the heart’s blood vessels can be analyzed to learn more about angina (chest discomfort from reduced blood flow). You may be asked to undergo specific heart/blood-flow measurements, which could help improve understanding and future care.
HsinchuAges 21 years+ - NCT04442334Recruiting
European registry for people with fatty liver
This registry collects health and lifestyle information from adults with suspected or confirmed fatty liver (NAFLD) to help researchers better understand the condition. You may be asked about diet, exercise, alcohol intake, and some liver-related tests.
AntwerpAges 18–100 - NCT05683093Recruiting
Follow-up study for adults after hypertensive pregnancy
This study follows young adults who previously joined the ALSPAC study to better understand long-term heart and metabolic health after a pregnancy affected by high blood pressure. You may be asked to return for visits and possibly an MRI, and your data may help researchers plan better long-term care.
Oxford, OxfordshireAges 30–40 - NCT04432220RecruitingPhase 4
Taking blood thinners one year after atrial fibrillation ablation
This study looks at whether people who have stayed in normal rhythm one year after atrial fibrillation ablation should continue blood thinning treatment. It may help guide safer, more personalized choices about long-term blood thinners after a successful procedure.
SeoulAges 19–80 - NCT05366452Recruiting
Early heart pump implant for shock after a heart attack
This trial studies whether putting in a small heart pump early (through the leg) helps people with a heart attack complicated by severe heart weakness (“cardiogenic shock”) compared with standard treatment. It aims to improve survival and recovery by supporting blood flow sooner.
Marseille, Bouche DU RhoneAges 18–80 - NCT05702203Recruiting
Music therapy for newborns with congenital heart disease
This trial tests whether creative music therapy can help newborn babies who have congenital heart disease (CHD) while they are in intensive care. It focuses on babies who are otherwise very young and in the NICU or PICU, regardless of CHD severity.
ZurichAges 1 minute–4 weeks
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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- 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.