Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,613 recruiting studies in this area right now.
By phase
- Not applicable7,634
- Phase 2471
- Phase 4471
- Phase 3438
- Phase 1350
- Phase 1/Phase 2161
- Phase 2/Phase 388
Top conditions
- Stroke796
- Heart Failure535
- Hypertension389
- Cardiovascular Diseases374
- Coronary Artery Disease362
- Multiple Myeloma328
- Atrial Fibrillation259
- Ischemic Stroke190
- Atrial Fibrillation (AF)154
- Acute Ischemic Stroke139
- Pulmonary Hypertension104
- Myocardial Infarction96
- Congenital Heart Disease83
- Peripheral Arterial Disease80
- Stroke, Ischemic77
- Aortic Valve Stenosis76
- Obesity74
- Acute Coronary Syndrome73
Leading sponsors
- Mayo Clinic93
- Assistance Publique - Hôpitaux de Paris88
- National Taiwan University Hospital67
- 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
- California449
- Alabama195
- Arizona182
- Massachusetts174
- New York166
- Florida141
- Texas122
- Maryland118
- Minnesota118
- Illinois111
Recruiting studies9,613 total
- NCT07595809Recruiting
Diet and exercise for heart failure with weak heart pumping
This study tests whether combining a healthy eating plan (DASH diet) with supervised exercise can help people with heart failure where the heart doesn't pump strongly enough. The goal is to see if these lifestyle changes improve heart function and symptoms.
Zabrze, Silesian VoivodeshipAges 30 years+ - NCT07599306Recruiting
Telehealth Rehabilitation for Heart Patients After ICU Recovery
This study tests whether supervised remote rehabilitation exercises can help people recover better after a long ICU stay. Many patients struggle with weakness, memory problems, or mood changes after intensive care—this trial aims to improve those symptoms through video-guided therapy.
Milan, MilanoAges 30–75 - NCT07599553Recruiting
Heart surgery with chest artery grafts: infection and pain study
This study follows patients undergoing bypass surgery where a artery from the chest wall (internal mammary artery) is used to reroute blood around blockages in the heart. Researchers will track infection rates, how well the graft stays open, and pain levels after surgery to understand how well this approach works.
Ottawa, OntarioAges 18 years+ - NCT07603245Recruiting
Sleep health program for couples
This study tests a program designed to help couples improve their sleep. It may be a good fit if you and your partner are interested in learning better sleep habits together.
New York, New YorkAges 30–65 - NCT07603466Enrolling by invitationPhase 4
Two drugs combined to treat Cushing's disease
This trial tests whether taking two medications together—osilodrostat and cabergoline—can help control Cushing's disease by lowering excess cortisol levels. Cushing's disease is caused by a pituitary tumor that makes too much of a hormone called ACTH, which drives cortisol overproduction.
BasraAges 18–70 - NCT07603076Recruiting
Vein Problems and Symptoms in Lipedema
This study looks at how vein function relates to lipedema (a condition causing painful fat buildup in legs). Researchers will use ultrasound to check your veins and ask about your symptoms to better understand how the two conditions connect.
Istanbul, UskudarAges 18–65 - NCT07597512Recruiting
Fluid Loss Patterns and Heart Failure Recovery Study
This study looks at how your kidneys handle salt and water when you're treated for acute heart failure in the hospital. Researchers want to understand which patients recover well from fluid buildup and which might need different treatment approaches.
Olot, GironaAges 18 years+ - NCT07596394Recruiting
Registry of Catheter-Based Aortic Valve Replacements
This registry collects information about patients who receive a new valve inserted through a catheter (a thin tube) rather than open surgery. It tracks how well the procedure works and any side effects to help doctors understand the long-term safety and effectiveness of this less invasive approach.
Pavia, PaviaAges 18 years+ - NCT07597031Recruiting
Digital Lifestyle Platform for People Leaving Hospital Rehab
This study tests whether a smartphone or tablet app can help people stay healthy and active after leaving rehabilitation. The app guides you through daily activities and healthy habits to support your recovery at home.
Bern, Canton of BernAges 18 years+ - NCT07599579Recruiting
Mobile app to manage high blood pressure after pregnancy complications
This study tests a smartphone app to help women who had high blood pressure during pregnancy manage their blood pressure now, 10–20 years later. The goal is to see if the app helps keep blood pressure under control and reduces heart disease risk.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT07596966Recruiting
Propolis and Royal Jelly for High Blood Pressure
This study tests whether two bee products—propolis and royal jelly—can help reduce inflammation and stress in the body of people with high blood pressure. Researchers want to see if adding these supplements to your current blood pressure medication helps control the condition better.
Niterói, Rio de JaneiroAges 18–75 - NCT07603102Recruiting
Mindfulness and Walking Training for Memory After Stroke
This study tests whether combining mindfulness meditation with balance and walking exercises can help improve memory and thinking skills in people who had a stroke. The trial focuses on people with mild cognitive impairment—difficulty thinking clearly—after stroke recovery.
NanjingAges 55 years+ - NCT07598630Recruiting
Two surgical approaches for severe hemorrhoids
This study compares two different surgical methods for treating severe hemorrhoids (third and fourth degree). The SHAPE procedure is a newer technique being tested against the traditional Milligan-Morgan approach to see which works better for pain relief and recovery.
Cairo, Al-Manial, Cairo, EgyptAges 18 years+ - NCT07595354Recruiting
Safe Exercise Plan for Young People at Risk of Heart Disease
This study helps children and teens who may be at risk for a heart condition called HCM learn safe ways to exercise. Researchers will create a personalized exercise plan and check in regularly to see how it goes.
LiverpoolAges 10–18 - NCT07601022Recruiting
Study of Heart Failure Hospital Admissions and Heart Function
This registry collects information from patients admitted to the hospital with acute heart failure (sudden worsening of the heart's pumping ability). Researchers will study your heart rhythm, blood markers, and medical history to better understand heart failure patterns and outcomes.
Seongnam-si, Gyeonggi-doAges 19 years+ - NCT07595068Recruiting
Ultrasound for Sleep and Heart Function Before Heart Surgery
This trial tests a new treatment using focused ultrasound to help regulate your nervous system and improve sleep quality before heart surgery. The goal is to help reduce anxiety and improve how well you sleep during the time leading up to and after your cardiology procedure.
Huangshi, HubeiAges 18–79 - NCT07597291Recruiting
Understanding heart failure shock outcomes and treatments
This registry tracks patients experiencing cardiogenic shock—a serious condition where the heart suddenly cannot pump enough blood to the body. Researchers collect information about patient outcomes and treatments to better understand what helps people recover.
Carnaxide, Lisbon DistrictAges 18 years+ - NCT07595718Recruiting
Using health data and AI to predict major diseases
This study uses your health information and artificial intelligence to help predict the onset of major diseases. By joining, you could help improve early detection and prevention for conditions like diabetes, heart disease, and cancer.
Seoul, Seoul Special CityAges 30–65 - NCT07600177RecruitingPhase 4
Switching Heart Medicines: Mavacamten to Aficamten
This study tests switching from mavacamten to aficamten, two newer medicines that help improve heart function in people with a thickened heart muscle (HCM) that blocks blood flow. The goal is to see if aficamten works as well or better.
Kansas City, MissouriAges 18–90 - NCT07598695RecruitingEarly Phase 1
Hand Sensory Feedback and Movement Recovery After Stroke
This early-stage study tests whether special sensory feedback (like touch or vibration on your hand) can help improve hand movement and coordination in people recovering from stroke. Researchers want to understand how the brain relearns hand control.
Washington D.C., District of ColumbiaAges 20–70 - NCT07598435Recruiting
Arm Recovery Exercises After Stroke: Two Training Methods Compared
This study tests two different physical therapy approaches to help improve arm movement and function in people recovering from stroke. You'll participate in therapy sessions using either rhythmic initiation (guided movement exercises) or isometric training (muscle-tightening exercises) to see which helps your arm recover better.
Faisalābad, Punjab ProvinceAges 40–60 - NCT07601724Recruiting
How fluid buildup affects sleep apnea in heart failure
This study looks at how excess fluid in the body affects sleep apnea (pauses in breathing during sleep) in people hospitalized with heart failure. Researchers will measure sleep apnea before and after treatment to reduce the fluid, which may help doctors better manage both conditions together.
JerusalemAges 18 years+ - NCT06717581Recruiting
Drug interaction study for older people with HIV
This study looks at how other medicines you take for conditions like high blood pressure, diabetes, or cholesterol might interact with your HIV medication (Biktarvy) if you are 60 or older. The goal is to learn how to better manage your overall health.
BolognaAges 18 years+ - NCT06180603Recruiting
Draining lung fluid safely in the ER
This trial tests a better way to drain fluid from around the lung while you are in the emergency department. It can help you breathe easier and find out what is causing the fluid buildup.
Aarhus, Central JutlandAges 18 years+
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,613 recruiting cardiology studies from the U.S. registry right now, out of 14,690 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.