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
- NCT07800871RecruitingPhase 1/Phase 2
FT839 cell therapy for autoimmune diseases
This trial tests a new cell therapy (FT839) designed to target and reset the immune system's B cells to help treat moderate to severe autoimmune diseases that haven't improved with standard treatments. It's an early-phase study, so the main goals are to see if it's safe and if it helps control the disease.
Fullerton, CaliforniaAges 18–70 - NCT07797855RecruitingPhase 1
Testing a new medicine's safety in healthy people
This study tests a new medicine called NNC0705-0002 in healthy volunteers to see if it is safe and how the body handles it. It helps find the right dose for future studies.
GroningenAges 18–55 - NCT06520410RecruitingPhase 4
Short vitrectomy tool for children's eye surgery
This trial tests a shorter, 18-millimeter tool for vitrectomy surgery in children. It aims to see if this smaller tool is safe and works well for treating various eye problems in kids.
TaoyuanAges birth–18 years - NCT06520176RecruitingPhase 3
Comparing two stem cell collection methods for multiple myeloma
This study tests two different combinations of medicines to help collect stem cells for a transplant in people newly diagnosed with multiple myeloma. The goal is to see which approach works better and is safer for you.
Dongyang, ZhejiangAges 18–75 - NCT05593679Recruiting
Registry study for heart PYP scans in possible ATTR amyloidosis
This study collects information from adults who have been diagnosed with, or are being checked for, ATTR amyloidosis (a condition where abnormal protein builds up in the body) using a heart PYP scan. Your participation may help doctors better understand how these scans relate to diagnosis and follow-up over time.
New Taipei CityAges 20 years+ - NCT06400927Recruiting
AI virtual assistant for managing new heart failure
This trial is testing a smartphone-based virtual assistant that uses artificial intelligence to help manage heart failure after you leave the hospital. It is designed for people who are newly diagnosed with heart failure and have moderate symptoms, to see if the AI assistant can help keep them healthy and out of the hospital.
Stevenage, HertfordshireAges 18 years+ - NCT06523582Recruiting
Genetic study of neuroendocrine tumors in Mexican patients
This study aims to find genetic causes of neuroendocrine tumors in Mexican patients. By understanding your DNA, researchers hope to improve diagnosis and treatment for people with these rare conditions.
Mexico City, Mexico CityAges 18 years+ - NCT06381778Recruiting
Taiwan registry study on hypertrophic cardiomyopathy
This study creates a registry (a detailed record) for people with hypertrophic cardiomyopathy, a condition where the heart muscle is thicker than normal. It aims to learn more about the condition over time.
New Taipei CityAges 20 years+ - NCT07795645Recruiting
AI model training for stomach, heart, and brain diseases
This study is testing an artificial intelligence (AI) system that learns from your medical records to better understand and possibly help with diseases like stomach issues, heart problems, and strokes. It may improve how doctors use information from your visit to guide your care.
BeijingAges 18 years+ - NCT07795021Recruiting
Stroke care during the COVID-19 pandemic
This study looks at how stroke care was given during the COVID-19 pandemic. It aims to understand if treatments and outcomes changed, which may help improve care for people with stroke in future health emergencies.
PragueAges Any age - NCT07799519RecruitingPhase 2
Finerenone after heart procedure to lower atrial fibrillation return
This trial tests whether taking finerenone after a heart procedure to fix irregular heartbeat can help prevent atrial fibrillation from coming back. It's for people having their first such procedure and aims to improve long-term heart rhythm health.
TainanAges 18–80 - NCT07794436Recruiting
Measuring valve and lung changes after minimally invasive heart valve replacement
This study looks at how replacing a narrowed heart valve affects fluid in the lungs. It may help doctors better understand recovery after this procedure.
Istanbul, IstanbulAges 18 years+ - NCT07793916Recruiting
Heart device and tricuspid valve function study
This study looks at how heart devices like pacemakers affect the tricuspid valve over time. It uses ultrasound to check valve function and see if the device causes any problems.
Seoul, SeoulAges 19 years+ - NCT07796217RecruitingPhase 4
Comparing blood thinners after a heart attack
This study compares two ways to lower the chances of another heart attack: taking the standard medicine (clopidogrel) versus taking a combination of aspirin and a lower dose of a blood thinner (rivaroxaban). If you join, you'll be assigned to one of these options to see which works better for people like you.
Seongnam-si, Gyeonggi-doAges 19 years+ - NCT07792694Recruiting
Predicting dangerous heart rhythms with smart software
This study uses computer software to analyze heart rhythm recordings from patients in the hospital to predict dangerous irregular heartbeats (arrhythmias). It aims to improve early detection and care for patients with heart conditions.
Eindhoven, North BrabantAges 18 years+ - NCT07798401RecruitingPhase 2
Tongue training device for swallowing problems after stroke
This study tests a special tongue-training device that gives you feedback to help improve swallowing after a stroke or similar condition. It uses a computer and a small sensor in your mouth to guide your exercises.
Foshan, GuangdongAges 18–80 - NCT07794527Recruiting
Nerve blocks to improve recovery after heart bypass surgery
This study tests whether giving multiple nerve blocks (numbing injections near nerves) during off-pump heart bypass surgery can improve your recovery and pain control. It aims to see if these blocks help you feel better and recover faster after surgery.
CairoAges 18–65 - NCT07795398RecruitingPhase 4
Stopping aspirin in older adults with stable heart disease
This trial tests whether older adults with stable heart disease can safely stop taking daily aspirin after two years without increasing the risk of heart attack or stroke. It may help reduce the side effects of long-term aspirin use.
CopenhagenAges 65 years+ - NCT07798011Recruiting
Faster breathing tube removal after pediatric heart surgery
This study compares two ways of helping children wake up and breathe on their own after minimally invasive heart surgery. One group gets a drug to quickly reverse the muscle relaxant, while the other group waits for it to wear off naturally. The goal is to see which method allows a safer, earlier breathing tube removal.
HanoiAges 2–18 - NCT07793799Enrolling by invitation
Comparing brain stimulation treatments for swallowing problems after stroke
This study tests three non-invasive brain stimulation methods to see if they can help improve swallowing after a stroke. If you have swallowing difficulties due to a stroke, this research might offer a new way to support your recovery.
IstanbulAges 18 years+ - NCT07797712Recruiting
Mirror therapy with standard rehab for post-stroke walking
This study tests whether adding mirror therapy to regular walking and leg exercises helps people who have had a stroke walk better and improve leg function. Mirror therapy uses a mirror to create the illusion that the affected leg is moving, which may help rewire the brain.
Quetta, BalochistanAges 40–70 - NCT07800481RecruitingEarly Phase 1
Imaging test for carotid artery health using a new tracer
This study tests a new imaging agent that may help see plaque buildup in the carotid arteries, which are the main arteries in the neck. It is looking for healthy volunteers to help establish a normal baseline for future scans.
St Louis, MissouriAges 18 years+ - NCT07800572RecruitingPhase 2
Study of anisodine for stroke patients after clot removal
This trial tests whether adding anisodine, a medicine that may protect brain cells, helps people recover better after a stroke caused by a blocked large artery in the brain. It is given after a procedure to remove the clot.
AnyangAges 18–80 - NCT07795112Recruiting
Acupuncture for reducing inflammation after heart surgery
This study tests whether acupuncture at a specific point (ST36) can reduce inflammation after heart surgery. If you are having heart surgery with a bypass machine, you may be able to join and receive this additional treatment to help your recovery.
Hangzhou, ZhejiangAges 18 years+
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.
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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.