Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 10,062 recruiting studies in this area right now.
By phase
- Not applicable8,033
- Phase 2488
- Phase 4482
- Phase 3452
- Phase 1360
- Phase 1/Phase 2161
- Phase 2/Phase 386
Top conditions
- Stroke856
- Heart Failure567
- Hypertension402
- Cardiovascular Diseases390
- Coronary Artery Disease373
- Multiple Myeloma329
- Atrial Fibrillation273
- Ischemic Stroke199
- Atrial Fibrillation (AF)146
- Acute Ischemic Stroke141
- Pulmonary Hypertension103
- Myocardial Infarction98
- Congenital Heart Disease86
- Peripheral Arterial Disease85
- Stroke, Ischemic84
- Acute Coronary Syndrome82
- Obesity80
- Aortic Valve Stenosis78
Leading sponsors
- Mayo Clinic95
- Assistance Publique - Hôpitaux de Paris92
- National Taiwan University Hospital74
- China National Center for Cardiovascular Diseases59
- Beijing Tiantan Hospital53
- 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
- California466
- Alabama199
- Massachusetts182
- Arizona176
- New York166
- Florida145
- Illinois120
- Maryland120
- Minnesota120
- Texas120
Recruiting studies10,059 total
- NCT00243776Recruiting
Study of heart tissue changes during certain heart surgeries
This study collects and analyzes small samples of heart tissue during specific heart operations in babies or children. The goal is to better understand how the heart develops after birth, which could improve future care.
Atlanta, GeorgiaAges Up to 20 years - NCT00081523Recruiting
Understanding How Sickle Cell Disease Develops Over Time
This research study follows people with sickle cell disease to learn how the condition affects their health over many years. By studying patients regularly, researchers hope to better understand the disease and improve care.
Washington D.C., District of ColumbiaAges 2–90 - NCT01804686RecruitingPhase 3
Long-term ibrutinib follow-up with or without nivolumab
This study looks at how safe and effective ibrutinib is over the long term, either alone or together with nivolumab. You may join if you are already in an earlier ibrutinib study and your care team feels staying on ibrutinib is worth the risk.
Duarte, CaliforniaAges 18 years+ - NCT00898235Recruiting
Collecting samples and health data for amyloidosis
This study collects blood and other samples, along with health information, from people who have—or might have—amyloidosis. It aims to improve understanding of the disease and support future treatments.
Boston, MassachusettsAges 18 years+ - NCT01390675Recruiting
Registry for heart valve replacement anesthesia during TAVR
This study tracks patients who get a transcatheter aortic valve implantation (TAVR), a procedure to replace a narrowed heart valve without open-heart surgery. It looks at the type of anesthesia used during the procedure and records outcomes to learn what works best for patients.
Munich, BavariaAges 18 years+ - NCT01341327Recruiting
Study of treatment choices for left main artery narrowing
This observational study looks at people with a significantly narrowed “left main” heart artery and records treatment decisions and follow-up outcomes. It may help doctors better understand which care approaches work best for this condition in real-world practice.
ShanghaiAges 18 years+ - NCT01137825Recruiting
Older patient cancer registry for a health check
This study is a registry that collects information from older adults who may be dealing with cancer. It includes a short health and function check to help doctors understand needs and guide care, even for people who turn out not to have cancer.
Boone, North CarolinaAges 65 years+ - NCT00626496Recruiting
Family study for certain blood and immune disorders
This study looks at families where more than one close, blood-related person has a lymphoproliferative disorder (a group of conditions where the lymph system makes too many abnormal cells). It aims to better understand why these disorders run in families and how they may be inherited or related.
Rochester, MinnesotaAges 18–100 - NCT01604395Recruiting
Long-term growth hormone check for children with short stature
This study follows children who are short for their age and checks how safe and effective growth hormone is over the long term. It may help families understand expected benefits and side effects for their specific growth-related condition.
SeoulAges 2 years+ - NCT02009345Recruiting
Study for inherited high cholesterol in families
This trial focuses on people with familial hypercholesterolemia (FH), an inherited condition that causes very high cholesterol. It aims to better understand and manage severe cholesterol problems that raise heart risk, especially in families.
Montreal, QuebecAges Any age - NCT01532791Recruiting
Study of mitochondrial mutation m.3243A>G in families
This study looks at the natural course of a specific inherited mitochondrial DNA change (m.3243A>G) over time. It may help doctors better understand how this mutation affects health and outcomes, even if no treatment is given.
New York, New YorkAges 4 years+ - NCT02000895Recruiting
Studying birth factors in preterm and term mother-infant pairs
This study looks at how biological factors at birth differ between preterm and term babies, and how they relate to the mother and baby together. It may help doctors better understand early-life influences for newborn care.
Miami, FloridaAges Up to 10 years - NCT00230165Recruiting
Genetics and blood testing for inherited bleeding disorders
This study looks at genes and blood function in people with inherited (passed-down) problems with platelets, white blood cells, or blood clotting. It may help improve understanding of the cause of these conditions and how they work in the body.
New York, New YorkAges Any age - NCT00009243Recruiting
Understanding How Strokes Develop: A Research Study
This study follows people who have had or are at risk for stroke to understand what causes strokes and how they develop over time. By participating, you help researchers learn more about stroke prevention and treatment.
Washington D.C., District of ColumbiaAges 18–120 - NCT01838148Recruiting
Tests heart signals to detect reduced blood flow during exercise
This study looks at specific blood-flow and heart-rhythm signals during an exercise test to find signs of reduced blood flow to the heart. It may help doctors spot heart problems sooner and decide who needs more care.
BaselAges 18 years+ - NCT02061787Recruiting
Exercise testing to assess outcomes in pulmonary hypertension
This trial studies how well a treadmill/breathing exercise test can measure health outcomes in people with certain types of pulmonary hypertension. It may help your care team judge your status and track changes over time.
BeijingAges 5–100 - NCT01258231Recruiting
Genetic test to predict risks after heart surgery
This study looks for genetic (DNA) clues that may help predict side effects or complications after heart surgery. If you join, your genome information may be used to understand who is at higher risk and why.
Boston, MassachusettsAges 20–90 - NCT01737528Recruiting
Transcatheter heart valve therapy registry for adults
This registry collects information from adults who receive a less invasive heart valve procedure (done through a catheter). The goal is to learn how these treatments work in real-world patients and care over time.
Washington D.C., District of ColumbiaAges 18 years+ - NCT01937949Recruiting
Fenestrated stent treatment for complex abdominal aortic aneurysms
This trial studies a custom-made stent graft placed from inside the blood vessel to treat complex aneurysms in the aorta. It may help prevent rupture and manage aneurysm risk, but it requires specific aneurysm anatomy and follow-up.
Rochester, MinnesotaAges 18 years+ - NCT02038517Recruiting
Liver transplant waitlist study for people without diabetes
This study is for people with end-stage cirrhosis who are on the liver transplant waitlist at this hospital. It aims to understand how getting a liver transplant may affect people with and without diabetes-related issues.
Milan, MIAges 18–65 - NCT02089789Recruiting
Study of inherited glycosylation disorders for diagnosis
This study helps doctors diagnose congenital (from birth) glycosylation disorders, which are inherited conditions that affect how the body builds certain sugar-related proteins. You (or your child) may have clinic visits, blood or other samples, and possibly genetic testing—especially if there are family members with a known or suspected condition.
Bethesda, MarylandAges 1 month–80 years - NCT01927783Recruiting
Community weight loss program for people in Washington area
This study tests a community-based behavioral weight loss program. It may help participants learn practical habits for healthier weight by working with people in local faith communities.
Bethesda, MarylandAges 19–85 - NCT01999140Recruiting
ICD and CRT-D device registry for patients worldwide
This trial is a real-world registry that collects information from people who receive an implantable heart defibrillator or related device. It helps doctors understand how these devices are used and how patients do over time.
Washington D.C., District of ColumbiaAges Any age - NCT01566175Recruiting
Neovasc device trial for hard-to-treat chest pain
This trial tests a device called the Neovasc Coronary Sinus Reducer to help people with long-lasting, hard-to-control chest pain (angina) who cannot have artery-opening procedures. It may improve symptoms by changing blood flow in the heart’s vein system.
Tel AvivAges 18 years+
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 10,062 recruiting cardiology studies from the U.S. registry right now, out of 15,523 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.