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
- NCT07527156RecruitingPhase 4
Ketones through a nose tube for severe heart failure
This trial tests whether giving a special liquid diet (ketones) through a thin tube in your nose helps your heart pump better when it's severely weakened and not getting enough blood to your body. Ketones are an alternative fuel your body can use instead of glucose.
Prague, PragueAges 18 years+ - NCT07527715Recruiting
Heart MRI Study for Dilated Heart Muscle Disease
This research uses cardiac MRI scans and patient data to better predict outcomes in people with dilated cardiomyopathy—a condition where the heart's main pumping chamber becomes enlarged and weakened. Participating could help doctors improve how they care for similar patients in the future.
Jinan, ShandongAges 18 years+ - NCT07528586Recruiting
Heart Imaging Study During Cancer Drug Treatment
This study uses heart imaging scans and blood tests to check if a common cancer drug (anthracycline) is affecting your heart during treatment. Early detection might help doctors protect your heart health.
StuttgartAges 18 years+ - NCT07528781Recruiting
New 3D Ultrasound Method for Measuring Heart Valve Leakage
This study tests a new way to measure leakage in the mitral valve (a valve in your heart) using advanced 3D ultrasound. If you have moderate or severe mitral valve leakage, this research may help doctors better understand and treat the condition.
Badalona, BarcelonaAges 18–95 - NCT07529054Recruiting
Robot-Assisted Walking Training After Stroke
This trial tests whether a robotic device that helps guide your walking can improve mobility and function after a stroke. If you've had a stroke at least 3 months ago and have some difficulty walking, this training might help you regain strength and independence.
Gröbming, StyriaAges 18–80 - NCT07529691Recruiting
Physical Activity and Quality of Life in Fibromuscular Dysplasia
This study asks people with fibromuscular dysplasia (an artery condition) about their physical activity and how they're doing in daily life. The information helps doctors understand how the condition affects people's wellbeing and exercise ability.
Nashville, TennesseeAges 18–100 - NCT07529782RecruitingPhase 1
Safety and Efficacy of HDP-101 in Relapsed or Refractory Multiple Myeloma
This trial tests a new drug called HDP-101 in patients with multiple myeloma that has come back or stopped responding to previous treatments. The study aims to find the safest and most effective dose and to see if this drug can help control the cancer.
Beijing, Beijing MunicipalityAges Up to 18 years - NCT07529834Recruiting
Breathing and Cycling for High Blood Pressure
This study tests whether combining special breathing techniques (Pilates and diaphragmatic breathing) with moderate cycling exercise can help lower blood pressure and improve lung function in people with high blood pressure. You'll practice these techniques over several weeks to see if they reduce your blood pressure more effectively than exercise alone.
IslamabadAges 20–55 - NCT07529821Recruiting
Breathing and Walking Exercise for Early High Blood Pressure
This study tests whether combining special breathing techniques with treadmill walking can help lower blood pressure and improve breathing function in people with slightly elevated blood pressure. If you have early-stage high blood pressure, this trial might help you avoid needing medication.
IslamabadAges 20–55 - NCT07530029Recruiting
Muscle loss in older patients with heart failure
This study looks at muscle loss (sarcopenia) in older patients (80+) hospitalized for heart failure with preserved pumping function. It may help doctors better understand how to care for this specific group.
Madrid, MadridAges 80 years+ - NCT07530588Recruiting
Remote CT imaging for fast stroke treatment decisions
This study tests whether CT scans done remotely (by doctors at a distance) can help stroke patients receive clot-busting treatment faster. Stroke treatment works best when given quickly, and this approach aims to speed up diagnosis in areas far from major hospitals.
SandnessjøenAges 18 years+ - NCT07530640RecruitingPhase 3
Statins to Help Children With Kawasaki Disease Heart Problems
This trial tests whether a cholesterol-lowering medication called atorvastatin can help children whose hearts were damaged by Kawasaki disease (a serious childhood illness that inflames blood vessels). The study may help reduce long-term heart complications.
ShanghaiAges 2–18 - NCT07531966Recruiting
Blood Vessel Problems After Kidney Transplant Treatment
This study looks at treating narrowing or blockage of blood vessels in transplanted kidneys. If your transplanted kidney is showing signs of not working well and imaging shows a blocked vessel, this trial tests whether a procedure called angioplasty (opening the vessel with a tiny balloon) can help restore blood flow and improve kidney function.
AarhusAges 18 years+ - NCT07534319Recruiting
Brain Blood Flow Changes After Stroke Clot Removal
This study examines how blood flow in the brain changes after a minimally invasive procedure to remove a blood clot during an acute stroke. The research uses MRI imaging to understand brain recovery patterns and may help improve stroke treatment outcomes.
Zurich, Canton of ZurichAges 18 years+ - NCT07534501Recruiting
Getting Fresh Produce to Manage Your Health
This study tests whether giving people prescriptions for fresh fruits and vegetables helps them manage high blood pressure, diabetes, or weight—and improves their overall health. You'll get produce and support to eat better.
Durham, North CarolinaAges 18 years+ - NCT07535203Recruiting
Heart Surgery Outcomes in Single-Ventricle Disease
This study follows children with a rare heart condition (univentricular heart) who need multiple surgeries, including a procedure called Fontan. Researchers want to understand how different blood-flow patterns after surgery affect long-term health and outcomes.
Jakarta, DKI JakartaAges Any age - NCT07535268Recruiting
Heart rhythm ablation outcomes in minority patients
This registry tracks outcomes for racial and ethnic minority patients undergoing a specific type of heart rhythm treatment (ablation) for atrial fibrillation. The goal is to understand how well this treatment works across different populations.
New York, New YorkAges 18 years+ - NCT07535398Recruiting
Telehealth Exercise Program for High Lung Blood Pressure
This study tests whether people with elevated pressure in the blood vessels of the lungs can safely exercise at home using video sessions with therapists. It aims to see if remote rehabilitation can improve heart function and daily activity without requiring in-person visits.
Tokat ProvinceAges 18–65 - NCT07536802RecruitingPhase 4
Adenosine Safety and Benefit in Emergency Heart Attack Treatment
This study tests whether giving a medication called adenosine before emergency heart catheterization (a tube procedure to open blocked arteries) helps patients having a heart attack. Adenosine may protect heart tissue and improve outcomes.
Karachi, SindhAges 18–80 - NCT07536906Recruiting
Emergency Department Falls Study for Adults 65+
This study examines how doctors evaluate older adults who fall in the emergency department. Researchers want to better understand fall patterns and improve care for seniors after falls.
Boston, MassachusettsAges 65 years+ - NCT07537517Recruiting
Understanding heart failure and blood vessel pressure changes
This research study examines how certain biological pathways work in patients with heart failure who need heart catheterization (a procedure to measure heart pressures). By understanding these pathways, researchers hope to develop better treatments for pulmonary hypertension, a condition where blood pressure in the lungs becomes dangerously high.
Madrid, MadridAges 18 years+ - NCT07537621Recruiting
How the heart's right chamber responds to fluids in ICU
This study watches how the right side of your heart responds when doctors give you extra fluids to improve blood flow during a critical illness. Understanding this response may help doctors make better decisions about fluid treatment in the ICU.
ReimsAges 18 years+ - NCT07539532Recruiting
AI model to predict heart problems after stomach surgery
This study compares a new artificial intelligence tool with traditional methods to predict which patients might have heart-related complications after gastrointestinal surgery. The goal is to find better ways to identify high-risk patients and potentially improve their care.
Hà NộiAges 16 years+ - NCT07539597Recruiting
Better Blood Pressure Care in New York Emergency Rooms
This study tests new ways to help people with high blood pressure get better control of it. If you've visited an emergency room with high blood pressure readings, researchers want to help you manage it better with new support and follow-up care.
New York, New YorkAges 18 years+
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
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- Mental health
- Digestive system
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- Immune system & allergy
- Women’s health & pregnancy
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- 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.