Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 10,066 recruiting studies in this area right now.
By phase
- Not applicable8,037
- Phase 2488
- Phase 4482
- Phase 3452
- Phase 1360
- Phase 1/Phase 2161
- Phase 2/Phase 386
Top conditions
- Stroke856
- Heart Failure566
- Hypertension403
- Cardiovascular Diseases390
- Coronary Artery Disease375
- Multiple Myeloma329
- Atrial Fibrillation273
- Ischemic Stroke199
- Atrial Fibrillation (AF)146
- Acute Ischemic Stroke141
- Pulmonary Hypertension104
- Myocardial Infarction98
- Congenital Heart Disease87
- Peripheral Arterial Disease85
- Stroke, Ischemic84
- Acute Coronary Syndrome83
- Obesity80
- Aortic Valve Stenosis78
Leading sponsors
- Mayo Clinic94
- Assistance Publique - Hôpitaux de Paris92
- National Taiwan University Hospital74
- China National Center for Cardiovascular Diseases59
- Beijing Tiantan Hospital54
- 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
- California467
- Alabama198
- Massachusetts181
- Arizona176
- New York166
- Florida145
- Illinois120
- Maryland120
- Texas120
- Minnesota119
Recruiting studies10,063 total
- NCT07430956RecruitingPhase 3
Stroke prevention in atrial fibrillation without standard blood thinners
This trial tests a new medication to prevent strokes and blood clots in people with atrial fibrillation (an irregular heartbeat) who cannot safely take standard blood thinners. The drug works by blocking a different clotting factor, which may lower bleeding risks.
Dothan, AlabamaAges 18 years+ - NCT07430943Recruiting
Adding street racket to lung rehab
This trial tests if playing Street Racket (a simple sport similar to tennis) is possible and enjoyable for people already in pulmonary rehabilitation. You would play while wearing a portable oxygen backpack.
ZurichAges Any age - NCT07431151Recruiting
Virtual reality training for balance after stroke
This study tests if using virtual reality headset games can help improve your balance, walking, daily activities, and quality of life after a recent stroke. If you join, you will do special balance and walking exercises with virtual reality.
Ankara, ÇankayaAges 18 years+ - NCT07431229Recruiting
Nitrates for moderate-to-high risk pulmonary embolism
This trial tests whether a common food additive (nitrates) can help your heart recover faster when you have a serious pulmonary embolism. It is for people with a recent clot and signs of heart strain, but who are not on specific blood thinners or other nitrate medicines.
StockholmAges 18 years+ - NCT07431710Recruiting
AI-guided chest compressions for cardiac arrest in the ER
This trial tests whether artificial intelligence (AI) can help doctors give better chest compressions during CPR for adults whose hearts stopped outside the hospital. The goal is to improve blood flow and outcomes without using special equipment in the ambulance.
New Taipei City, BanqiaoAges 20 years+ - NCT07432126Recruiting
Community health workers manage high blood pressure and diabetes in Nepal
This trial tests whether community health workers can help people in Nepal better manage high blood pressure (also called hypertension) and diabetes. If you have one or both conditions, this study may help you get support closer to home.
Kavre, BagmatiAges 30 years+ - NCT07432204Recruiting
Therapeutic music listening after stroke
This trial tests whether listening to music can help reduce anxiety and depression in people who have had a stroke within the past 3 months. It is designed for those who are experiencing significant emotional distress after their stroke.
PaviaAges 18 years+ - NCT07433075Recruiting
Testing a planning software for brain aneurysm treatment
This study tests Sim&Size, a software that helps doctors plan how to place implants to treat unruptured brain aneurysms. The trial looks at whether using this software improves outcomes and reduces costs.
AngersAges 18 years+ - NCT07434674Recruiting
Long-Term Atrial Fibrillation After Acute Illness Study
This study is for people who recently had atrial fibrillation (an irregular heartbeat) for the first time while in the hospital or sick. It uses a small implantable heart monitor to see if the irregular heartbeat comes back over the next few years.
La Jolla, CaliforniaAges 18 years+ - NCT07434726Recruiting
Balloon in aorta to improve CPR for in-hospital cardiac arrest
This trial tests if placing a balloon in the main artery (aorta) during CPR can improve blood flow to the heart and brain. It is for adults who have a cardiac arrest while already in the hospital and have a pulse-check showing some heart activity.
BernAges 18 years+ - NCT07435727Recruiting
Comparing Two Steps to Remove Tracheostomy in Stroke Patients
This trial compares two methods (a speaking valve trial vs. a capping trial) to help stroke patients with a tracheostomy safely remove their trach tube. It tests which method works better to prepare you for breathing on your own.
Beijing, Beijing MunicipalityAges 18–80 - NCT07436156RecruitingPhase 4
Stroke treatment study using a new clot removal system
This study looks at people who had an ischemic stroke and were treated with a special clot-removal device. It aims to learn how well this treatment works in real-world patients.
West Jordan, UtahAges 18 years+ - NCT07436429Recruiting
Drug-coated balloon for heart attack treatment
This trial tests if a special balloon that releases medication can be used instead of a stent during emergency angioplasty for certain heart attacks. It may help patients who are having a first-time heart attack and are stable enough for the procedure.
ViennaAges 18 years+ - NCT07436702Recruiting
Best time for treatment in serious pulmonary embolism
This trial looks at when it's best to give treatment to restore blood flow in people with a serious type of pulmonary embolism. It aims to find the optimal time for this procedure to improve outcomes.
Milan, MilanoAges 18 years+ - NCT07436962Recruiting
Loop recorder for mitral valve heart condition
This trial tests whether a small heart monitor (loop recorder) can help people with a specific mitral valve condition called mitral annular disjunction. It's for patients who have scar tissue in their heart muscle shown on an MRI.
BudapestAges 18–60 - NCT07438327Recruiting
AI study to improve heart and aorta CT analysis
This trial uses artificial intelligence to better analyze CT scans of the aorta, the large artery that carries blood from your heart. If your CT scan shows the aorta is partly cut off or missing in the images, the AI will help measure the parts that are fully visible.
Chapel Hill, North CarolinaAges 22 years+ - NCT07438938Recruiting
Lazarus airway opening index trial for cardiac arrest
This study looks at a new measure called the Airway Opening Index (AOI) to see if it can help doctors predict when a person's airway opens during CPR after a heart attack outside the hospital. If you've had a cardiac arrest and needed a breathing tube, this research might help improve how care is given.
Ghent, East-FlandersAges 18 years+ - NCT07439016Recruiting
LA function after pulse field ablation for paroxysmal AF
This trial tests how pulse field ablation (a treatment that uses short electrical pulses to correct irregular heartbeats) affects the left atrium's function in people with paroxysmal atrial fibrillation (AFib that comes and goes). It may help if you have paroxysmal AFib and are in normal rhythm at the start of the procedure.
PragueAges 18 years+ - NCT07439133RecruitingPhase 3
Comparing new heart scan with standard tests for coronary disease
This trial is testing a new imaging agent called XTR004 to see if it can accurately find blockages in the heart's arteries. If you have suspected or confirmed stable coronary heart disease, this study may offer a less invasive way to diagnose your condition.
BeijingAges 18–80 - NCT07439159Recruiting
Heart ultrasound to predict outcomes in hospitalized heart failure
This study uses a heart ultrasound (echocardiogram) to predict outcomes in people hospitalized for sudden heart failure. If you are receiving IV fluid-removing medication, the results may help your doctors understand your condition better.
IstanbulAges 18 years+ - NCT07439939Recruiting
Blood Clotting Study in Cirrhosis Patients Getting a TIPS
This study looks at blood clotting in patients with cirrhosis who are getting a TIPS—a tube placed in the liver to help blood flow. The study aims to understand how the procedure affects bleeding and clotting, which could help make it safer for people with liver disease.
VillejuifAges 18 years+ - NCT07439991Recruiting
Study of blood clot risks after lung cancer surgery
This study looks at why some people develop blood clots after lung cancer surgery. By tracking your recovery for 30 days, researchers hope to find better ways to predict and prevent clots in the future.
Changchun, JilinAges 18 years+ - NCT07439965Recruiting
Studying blood particles from different body areas in aneurysm patients
This trial looks at tiny particles in the blood called extracellular vesicles to see how they differ in patients with brain aneurysms. It may help doctors better understand these aneurysms and improve treatment.
Changchun, JilinAges 18–60 - NCT07440316Recruiting
Colorado community health study for diverse groups
This study aims to work with Black, East African, Latino, Hispanic, or Native American communities in specific Colorado regions to improve health. It may help you by focusing on the unique needs of your community.
Aurora, ColoradoAges 18–90
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 10,066 recruiting cardiology studies from the U.S. registry right now, out of 15,554 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.