Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,989 recruiting studies in this area right now.
By phase
- Not applicable7,969
- Phase 2481
- Phase 4481
- Phase 3447
- Phase 1361
- Phase 1/Phase 2163
- Phase 2/Phase 387
Top conditions
- Stroke845
- Heart Failure564
- Hypertension400
- Cardiovascular Diseases389
- Coronary Artery Disease370
- Multiple Myeloma332
- Atrial Fibrillation267
- Ischemic Stroke200
- Atrial Fibrillation (AF)141
- Acute Ischemic Stroke139
- Pulmonary Hypertension100
- Myocardial Infarction99
- Congenital Heart Disease86
- Stroke, Ischemic85
- Peripheral Arterial Disease83
- Acute Coronary Syndrome82
- Obesity80
- Aortic Valve Stenosis79
Leading sponsors
- Mayo Clinic94
- Assistance Publique - Hôpitaux de Paris91
- National Taiwan University Hospital74
- China National Center for Cardiovascular Diseases59
- Beijing Tiantan Hospital52
- Riphah International University51
- Second Affiliated Hospital, School of Medicine, Zhejiang University51
- Massachusetts General Hospital50
- Insel Gruppe AG, University Hospital Bern49
- Johns Hopkins University47
Where studies are running
- California466
- Alabama197
- Massachusetts182
- Arizona173
- New York162
- Florida144
- Maryland120
- Minnesota120
- Illinois119
- Texas118
Recruiting studies9,986 total
- NCT06251076RecruitingPhase 4
Outpatient teclistamab for multiple myeloma: a safety study
This study tests whether giving the drug teclistamab (a treatment for multiple myeloma) in an outpatient setting is safe and works well. You may qualify if you have had at least three prior treatments, have a caregiver to support you, and meet other health criteria.
Toronto, OntarioAges 18 years+ - NCT06252168Recruiting
A registry for heart attack patients in Tomsk
This study collects information from people in Tomsk who have had a heart attack (acute myocardial infarction). It looks at medical records to better understand heart attacks and improve treatment.
TomskAges 20 years+ - NCT06252792Recruiting
Daratumumab-pomalidomide-dexamethasone for first-relapse myeloma
This trial tests a combination of three drugs (daratumumab, pomalidomide, and dexamethasone) for people whose multiple myeloma has returned for the first time after initial treatment with RVD. The goal is to see if this new combination can control the cancer.
Changchun, JilinAges 18 years+ - NCT06253000Recruiting
Heat vs. Freezing for the Back of the Heart
This trial tests two ways to treat the back wall of the heart's left chamber in people with stubborn atrial fibrillation. It compares radiofrequency (heat) and cryoablation (freezing) to see which is safer and works better.
MoscowAges 18–80 - NCT06253104Recruiting
Tracking muscle changes in acute heart failure
This study measures how thigh muscles change in people hospitalized with severe heart failure. It aims to understand muscle loss during this condition and how it relates to recovery.
Boston, MassachusettsAges 18–100 - NCT06253312Recruiting
Comparing treatments for severe pelvic artery blockages
This study looks back at adults treated for severe blockages in the large arteries of the pelvis and lower belly. Researchers want to compare how well different treatments (minimally invasive procedures, open surgery, or a mix) worked over time.
BelgradeAges 18–100 - NCT06253962Recruiting
Can carotid artery scans predict heart disease?
This study looks at whether ultrasound scans of the carotid artery (the main artery in your neck) can help predict blockages in the heart arteries. If you are getting both a carotid ultrasound and a heart angiogram, you may be able to join.
ShanghaiAges 14–90 - NCT06255769Recruiting
Magnetic heart scan for diagnosing reduced blood flow
This study tests a new, noninvasive way to detect reduced blood flow to the heart (myocardial ischemia) using a magnetic heart scan called MCG. If you have chest pain or similar symptoms but your narrowed arteries are not severely blocked, this trial may help diagnose your condition more accurately.
Jinan, ShandongAges 18 years+ - NCT06255457Recruiting
Heart rhythm study for patients getting mitral valve surgery
This study looks at heart rhythm problems in people having mitral valve surgery to fix a leaky valve. It may help doctors better understand who is at risk for dangerous rhythms.
Stockholm, Stockholm CountyAges 18 years+ - NCT06255678Recruiting
Angio-based check of heart artery treatment effect
This trial tests if special software can check the result of a balloon or stent procedure by looking at the X-ray movie of your heart arteries. It may help doctors decide if more treatment is needed.
WarsawAges 18 years+ - NCT06256991RecruitingPhase 4
Potassium management for kidney health
This study tests if careful potassium management can help people with chronic kidney disease (CKD) safely take higher doses of blood pressure medicines called ACE inhibitors or ARBs, which are known to protect the kidneys. You may be eligible if you have moderate to advanced CKD and are already on a moderate dose of one of these medications.
GroningenAges 18 years+ - NCT06257043Recruiting
Real-world study of aortic valve replacement
This trial is studying how well a new type of heart valve works in real-life patients with aortic valve disease. It will help doctors understand if this valve is safe and effective for people who need a procedure called TAVR (transcatheter aortic valve replacement).
Xi'an, ShaanxiAges 18 years+ - NCT06257082Recruiting
Video education for diabetic eye screening in Latinx communities
This study tests video-based education to help Latinx people with diabetes get regular eye exams, which can prevent vision loss. You may be able to join if you are Hispanic or Latino and have diabetes.
Madison, WisconsinAges 18 years+ - NCT06258109Recruiting
Pregnancy and stroke risk after artery dissection
This study looks at women who had a cervical artery dissection (a tear in a neck artery) and later became pregnant. It wants to see if pregnancy raises the risk of another dissection or stroke.
Salt Lake City, UtahAges 18 years+ - NCT06258473RecruitingPhase 1
Hypertension and diabetes care study in rural Bangladesh
This study tests a program to improve care for people with both high blood pressure and diabetes in rural Bangladesh. It aims to help patients manage their conditions better.
DhakaAges 40 years+ - NCT06258681Recruiting
Breathing exercise device for recovery after heart surgery
This trial tests a new breathing exercise device designed to help your lungs recover after heart surgery. It may make your breathing easier and speed up your return to daily activities.
Istanbul, IstanbulAges 40–65 - NCT06259019Recruiting
Blood test during heart procedure to find disease markers
This trial uses a special device to take a small blood sample from your heart arteries during a planned procedure. It aims to find unique markers that could help doctors better understand and treat coronary artery disease.
BournemouthAges 18 years+ - NCT06259292Recruiting
HHT patient registry tracking long-term outcomes
This registry collects health information from people with HHT over time to better understand the disease and improve care. Joining does not involve any experimental treatment, but your data will help researchers learn more about HHT.
Birmingham, AlabamaAges Any age - NCT06259760Recruiting
Kidney risk after low-blood-pressure anesthesia for jaw surgery
This study looks at factors that may increase the risk of kidney injury during jaw surgery when a special low-blood-pressure anesthesia technique is used. It helps doctors understand who is more likely to have complications.
Kaohsiung City, Sanmin DistAges 18–65 - NCT06260059RecruitingPhase 4
Jardiance for adults with congenital heart disease and reduced heart function
This study tests a medicine called Jardiance (an SGLT2 inhibitor) to see if it helps improve heart function in adults with congenital heart disease who have recently experienced a drop in their heart pumping ability. Participants will take the medication alongside standard heart failure treatments.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT06260488Recruiting
Using AI to study leg arteries before amputation
This trial uses artificial intelligence to analyze CT scans and microscope images of the main leg artery. It aims to improve understanding of artery structure. Participation is only for patients who are already scheduled for a leg amputation as part of their medical care.
Strasbourg, Bas-RhinAges 18 years+ - NCT06262529Recruiting
Thinking after a Stroke: A Study of Memory and Thinking
This study looks at thinking and memory problems in younger adults (18 to 45) who have had an ischemic stroke. It aims to understand how a stroke affects the brain's ability to think clearly.
CannesAges 18–45 - NCT06262828Recruiting
Heart health study for Chinese with past CVD event
This study looks at heart health in Chinese patients who have had a past cardiovascular event. If you qualify, you'll help researchers learn more about heart disease and how to improve care.
Hong KongAges 18–80 - NCT06263322Recruiting
Recovery tracking after leg artery surgery
This study tests a mobile app to track your recovery after surgery for severe leg artery disease. The goal is to see if using the app helps improve your recovery and quality of life.
Gainesville, FloridaAges 60–100
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,989 recruiting cardiology studies from the U.S. registry right now, out of 15,300 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.