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
- NCT03185702Recruiting
Turner syndrome research registry for people with Turner syndrome
This registry study is collecting information from people who have Turner syndrome. It may help researchers better understand the condition and plan future studies that could lead to improved care.
Houston, TexasAges Any age - NCT05908214Recruiting
Electrical stimulation for leg stiffness and overactive nerves
This study tests a treatment using high-frequency electrical stimulation to reduce overactive nerve signals that can cause stiff legs, poor ankle control, cramps, or restless legs. It may help improve movement and comfort during walking or at night, depending on the condition.
LausanneAges 18 years+ - NCT02023060Recruiting
Improving function and quality of life after heart valve repair
This study looks at how a less invasive heart valve procedure affects your day-to-day functioning and overall quality of life. If you’re already being considered for a transcatheter (catheter-based) valve replacement, you may be able to join to help understand what improvements patients experience.
JerusalemAges 18–110 - NCT06131385Recruiting
Tracking IV clot-busting treatment for stroke in China
This study is tracking patients in southwestern China who have had an acute ischemic stroke and received a clot-busting medicine through an IV. It aims to learn more about how well this treatment works and how it is used in real-world settings.
LuzhouAges Any age - NCT06148285Recruiting
Hyperbaric oxygen for ischemic stroke recovery
This study tests whether hyperbaric oxygen therapy (breathing pure oxygen in a pressurized chamber) can help people recover after a recent ischemic stroke. It is open to stroke survivors admitted to Touro's inpatient rehab unit.
New Orleans, LouisianaAges 18 years+ - NCT04945603Recruiting
Study for poor-grade brain bleed from a ruptured aneurysm
This trial is enrolling people who come to the emergency room with a serious brain bleed caused by a ruptured brain aneurysm. It aims to test care strategies for patients with poor-grade injuries, who may have worse outcomes than typical cases.
BergamoAges 18 years+ - NCT04417387Recruiting
Check genetics to improve heart disease risk prediction
This study looks at whether adding genetic information to a standard NHS Health Check can better predict a person’s risk of coronary artery disease (CAD). If you qualify, you may be asked to provide genetic information to help refine future risk estimates.
LeicesterAges 40–74 - NCT04265040Recruiting
Heart muscle disease registry for non-ischemic conditions
This trial is a registry, meaning it collects health information to help doctors study heart muscle diseases and plan future cardiovascular studies. You may be able to join if you have a non-ischemic cardiomyopathy such as dilated cardiomyopathy, certain forms of thick heart muscle, non-compaction, or arrhythmogenic right-sided disease.
Heidelberg, Baden-WurttembergAges 18–80 - NCT05482399Recruiting
Study statin use and silent artery plaque in older adults
This study looks at “subclinical atherosclerosis,” meaning early or silent plaque buildup in the arteries, in older people already taking statins. It may help doctors understand how well statins can slow artery damage in people with multiple health conditions.
BernAges 70 years+ - NCT06153407Recruiting
Genetic test for early valve disease in bicuspid aortic valve
This study looks at how genes may affect the risk of calcium buildup in the aortic valve in people with a bicuspid aortic valve. By joining, you help researchers find better ways to predict and manage this heart condition.
SeoulAges 19–80 - NCT03240965Recruiting
Testing changes in smell and taste after recent stroke
This study looks at how smell and taste may change after a new stroke, especially in the first few days. It may help doctors better understand and monitor symptoms related to eating and swallowing after stroke.
Giessen, HesseAges 18 years+ - NCT04785976Recruiting
Study of long-term outcomes after a ruptured brain aneurysm bleed
This trial is a long-term follow-up study of people who come to the emergency room with a ruptured brain aneurysm (bleeding in the space around the brain). It helps doctors understand what outcomes are most common and what may affect recovery over time.
Beijing, Beijing MunicipalityAges Any age - NCT05295862Recruiting
Stroke registry for adults after acute stroke
This study enrolls adults who are admitted to the hospital for a sudden (acute) stroke. It mainly collects information about your care and recovery to help improve stroke treatment in the future.
Giessen, HesseAges 18 years+ - NCT05659160Recruiting
Triage approach for certain strokes from blocked large brain arteries
This trial studies a way to sort and treat people with a specific type of acute ischemic stroke (caused by a blockage in a large brain artery). It may help doctors choose the best next steps—either a procedure or medication—faster and more appropriately.
Tianjin, Tianjin MunicipalityAges 18 years+ - NCT05681858Recruiting
Testing heart inflammation and reduced blood flow in MINOCA
This study looks at why some people have chest pain and heart injury signs, but their heart arteries are not blocked. It tests scans of blood flow and heart tissue to better understand the cause and guide care.
BergenAges 18 years+ - NCT05967663Recruiting
Staged vs same-day heart artery repair after a heart attack
This study compares doing all heart artery procedures right away versus doing part of them later in people who had a heart attack and have blockage in more than one artery. It aims to see which approach is safer and works better after the initial emergency procedure.
ShanghaiAges 18 years+ - NCT05731687Recruiting
Balloon or two-stent approach for clogged bifurcation arteries
This trial compares two ways to open a specific type of heart blockage that involves both a main artery and a side branch. It tests whether using a drug-coated balloon (“hybrid strategy”) works as well as using a planned two-stent approach (“stepwise provisional strategy”).
Eindhoven, North BrabantAges 18 years+ - NCT05258448Recruiting
Chemo-radiotherapy for advanced, non-surgical lung cancer
This trial studies treatment that combines chemotherapy and radiation for people with advanced lung cancer that cannot be removed with surgery. It may help improve cure chances for patients who can complete the study tests, including heart scans.
Odense CAges 18 years+ - NCT06158269RecruitingPhase 2
DVRd treatment for newly diagnosed double-hit myeloma
This trial tests a combination of four drugs (daratumumab, bortezomib, lenalidomide, and dexamethasone) for people newly diagnosed with a high-risk form of multiple myeloma called double-hit myeloma. It aims to see if this drug combo can improve outcomes for those with two or more high-risk genetic changes.
TianjinAges 18–70 - NCT06125925Recruiting
Ablation for AFib in patients with heart failure and preserved ejection fraction
This study tests whether a catheter ablation procedure can help people with atrial fibrillation and a kind of heart failure where the heart pumps normally but doesn't relax properly (HFpEF). It looks at whether the procedure can improve symptoms and heart function.
NanjingAges 18–80 - NCT04448639Recruiting
Compare Takotsubo and heart attack during early heart scans
This trial looks at people with either a heart attack pattern called STEMI or a temporary heart condition called Takotsubo (stress-related heart weakness). It compares what is found during a planned heart artery scan (coronary angiography) within 12 hours, which may help doctors understand and manage these conditions sooner.
GothenburgAges Any age - NCT05424016Recruiting
Propranolol for brain blood-vessel tumors in VHL
This trial studies whether propranolol, a beta-blocker medicine, can help people with VHL who have non-urgent hemangioblastomas in the brain/spinal cord. It aims to see if the medication is safe and beneficial without needing immediate surgery.
Le Kremlin-BicêtreAges 18 years+ - NCT04436978RecruitingPhase 4
Best blood thinner plan for atrial fibrillation after stent
This study compares different blood-thinner (“antithrombotic”) strategies in people with atrial fibrillation or flutter who recently had a stent placed (PCI). It aims to find a plan that lowers clot risk while keeping bleeding risk as low as possible.
AalstAges 18 years+ - NCT04916197RecruitingPhase 4
Dexmedetomidine sedation after stroke clot removal
This Phase 4 study tests whether using a specific calming medicine (dexmedetomidine) for a longer period after a successful clot-removal procedure helps people do better in the long term. It may help improve outcomes after ischemic stroke where the clot is successfully treated.
Beijing, Beijing MunicipalityAges 18–80
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.