Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,610 recruiting studies in this area right now.
By phase
- Not applicable7,634
- Phase 2471
- Phase 4471
- Phase 3437
- Phase 1350
- Phase 1/Phase 2160
- Phase 2/Phase 387
Top conditions
- Stroke796
- Heart Failure534
- Hypertension389
- Cardiovascular Diseases373
- Coronary Artery Disease363
- Multiple Myeloma327
- Atrial Fibrillation259
- Ischemic Stroke190
- Atrial Fibrillation (AF)154
- Acute Ischemic Stroke139
- Pulmonary Hypertension104
- Myocardial Infarction96
- Congenital Heart Disease84
- Peripheral Arterial Disease80
- 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
- California451
- Alabama195
- Arizona181
- Massachusetts173
- New York168
- Florida140
- Texas122
- Maryland118
- Minnesota117
- Illinois111
Recruiting studies9,610 total
- NCT07659119Recruiting
Study of CT-FFR in chronic coronary syndrome patients
This study is following people with chronic coronary syndrome to see how a special CT-based blood flow test (CT-FFR) helps predict their heart health. If you have already had this test, you may be eligible to join and help doctors learn more about managing your condition.
Hangzhou, ZhejiangAges 18 years+ - NCT07658222Recruiting
Understanding heart changes in advanced cirrhosis
This study is looking at how cirrhosis affects the heart (called cirrhotic cardiomyopathy). It aims to understand the connection between advanced liver disease and heart function, which may help improve care for people with cirrhosis.
Nashville, TennesseeAges 18 years+ - NCT07658989Recruiting
Blood thinners in pregnancy with mechanical heart valves
This study looks at the best way to manage blood thinners for pregnant people who have mechanical heart valves. It aims to find the safest approach for both the mother and the baby.
Toronto, OntarioAges 18–45 - NCT06573359Recruiting
Expanded rehab scale study for stroke survivors
This study aims to test a new scale that measures rehabilitation complexity for stroke patients. It could help doctors better plan your rehab.
Istanbul, BahçelievlerAges 2 months–6 months - NCT06516822Recruiting
Comparing two ablation methods for long-standing atrial fibrillation
This study tests whether adding extra scar lines (linear ablation) to the standard pulmonary vein isolation (CPVI) is better than CPVI alone for people with long-standing persistent AF that has lasted 1 to 3 years. The goal is to see which approach reduces AF better.
Beijing, Beijing MunicipalityAges 18–75 - NCT06580717RecruitingPhase 4
Testing empagliflozin for heart stiffness in hypertrophic cardiomyopathy
This study tests whether a diabetes drug (empagliflozin) can improve the heart's ability to relax and fill with blood in people with non-obstructive hypertrophic cardiomyopathy, a type of heart muscle thickening. You may be able to join if you have this condition and are not currently taking an SGLT2 inhibitor.
SeoulAges 19–80 - NCT06668649Recruiting
Polish fatigue scale study for MS, ALS, or stroke
This study tests a Polish version of a scale that measures how tired people feel. It's for people with MS, ALS, or stroke, or healthy volunteers.
Krakow, Lesser Poland VoivodeshipAges 18 years+ - NCT06644118RecruitingPhase 1
Study of OL-101 for people with relapsed or refractory multiple myeloma
This trial tests a new treatment called OL-101 for people whose multiple myeloma has come back or stopped responding to at least three prior treatments, including a proteasome inhibitor, an immunomodulatory drug, and an anti-CD38 antibody. It aims to see if OL-101 can help control the disease.
Beijing, Beijing MunicipalityAges 18–75 - NCT06680986Recruiting
AI heart ultrasound study for high blood pressure
This trial uses artificial intelligence to analyze heart ultrasound images from people who had high blood pressure evaluations during a hospital stay. It aims to better understand how high blood pressure affects the heart.
Pierre-BéniteAges 18 years+ - NCT06678698Recruiting
Light therapy for blood pressure control in adults
This trial tests light therapy (photobiomodulation) to see if it helps people with high blood pressure who still have trouble controlling it with medication. It is a short study looking at an acute effect.
São Carlos, São PauloAges 40–60 - NCT06680791Recruiting
Endometrial cancer study on recurrence prevention and lifestyle
This study looks at how your cancer type and daily habits might help prevent endometrial cancer from coming back. It only requires that you've had endometrial cancer and a hysterectomy.
PragueAges Any age - NCT06681506Recruiting
New heart rehab program for ischemic heart disease
This study tests a new cardiac rehabilitation treatment for people with ischemic heart disease, a condition where blood flow to the heart is reduced. The goal is to improve heart health and recovery through a structured rehab program.
Shanghai, Shanghai MunicipalityAges 18–85 - NCT03892174Recruiting
Removing inflammatory signals during heart surgery for endocarditis
This study tests whether removing certain inflammation signals (cytokines) can help people with severe heart infection (infective endocarditis) who are having heart surgery soon. It may help reduce harmful inflammation around the time of surgery, but it also has several medication and health-condition requirements.
BernAges 18 years+ - NCT06684171Recruiting
Comparing two ways to guide mitral valve clip repair
This trial tests whether using only ultrasound (echo) to guide a mitral valve clip repair is as good as using ultrasound plus X-ray. The study may help patients with a leaky mitral valve who are not good candidates for open heart surgery.
Shenzhen, GuangdongAges Any age - NCT06669884Recruiting
New ECG method to quickly sort chest pain in ER
This study tests a new ECG-based technology that may help doctors more quickly sort out the cause of your chest pain in the emergency room. If you have chest pain that needs checking, this tool could help decide how urgent your care is.
Jinan, ShandongAges 18 years+ - NCT07651306Recruiting
Bone Loss After Stroke: New X-ray Detection Method
This study tests whether a new way of measuring X-rays can detect bone loss in the shoulder after a stroke. The research may help doctors identify patients at risk for fractures earlier.
IstanbulAges 18 years+ - NCT07648693Recruiting
Brain Protection Device During Aortic Valve Replacement
This trial tests a new device called CHORDS that protects your brain during transcatheter aortic valve replacement (TAVR), a minimally invasive procedure to fix a narrow aortic valve. The device works by blocking debris that might travel to your brain during the procedure.
Bengbu, AnhuiAges 18 years+ - NCT07654829RecruitingPhase 4
Sebetralstat to prevent swelling before procedures in HAE
This trial tests if sebetralstat can prevent swelling attacks before medical procedures in people with HAE types I or II. You take the medicine short-term before your procedure to see if it helps protect you from an attack.
Colorado Springs, ColoradoAges 12 years+ - NCT07646704Recruiting
Study of HeartR PDA Heart Device Safety and Function
This study follows patients who had a small heart device (HeartR PDA Occluder) placed to close an opening in their heart called a PDA. Researchers will check how well the device is working and track the patient's health over time.
Pekanbaru, RiauAges 6 months+ - NCT07650032Recruiting
Freezing Treatment for Abnormal Heart Rhythms
This trial tests a freezing catheter procedure to treat dangerous, recurring abnormal heart rhythms (ventricular tachycardia) in patients whose hearts are weakened and whose current medications haven't worked. The procedure aims to scar the tissue causing the arrhythmia so your heart beats normally again.
Phoenix, ArizonaAges 18 years+ - NCT07654855Recruiting
Long-term safety of eplontersen in ATTR patients
This study follows people who already took part in an earlier trial (D8450R00003) to see how safe eplontersen is over the long term. It also includes people who had a liver transplant or severe liver problems.
Los Angeles, CaliforniaAges 18 years+ - NCT07646782Recruiting
Human Observatory Study: Aging and Longevity Research
This study observes how people age over time to better understand what helps people live longer and healthier lives. You'll share health information through surveys or online screening, and researchers will track changes in your health and wellbeing.
Boulder, ColoradoAges 18 years+ - NCT07648264RecruitingPhase 3
Immune Boost Treatment After CAR-T or TCE Therapy
This study tests a new immunoglobulin (antibody) treatment called IgPro20 in adults whose immune systems became weakened after receiving CAR-T cell or TCE therapies for blood cancers. The goal is to help strengthen your immune system and reduce infection risk.
Orange, CaliforniaAges 18 years+ - NCT07652281RecruitingPhase 1
Study of SHR-5421 for multiple myeloma
This trial tests a new drug, SHR-5421, for people with multiple myeloma that has come back or stopped responding to treatment. It aims to see if the drug is safe and how well it works.
Beijing, Beijing MunicipalityAges 18 years+
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,610 recruiting cardiology studies from the U.S. registry right now, out of 14,650 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.