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
- NCT02432079Recruiting
Study genetics in heterotaxy and certain heart defects
This study looks at the genes behind heterotaxy and related congenital (from-birth) heart defects. You may be able to join if you have this condition—or if you are a close family member of someone who does.
Indianapolis, IndianaAges Any age - NCT02156401Recruiting
Study of tests and care to improve clot diagnosis
This study follows adults who may have a blood clot in the lung (pulmonary embolism) or leg (deep vein thrombosis), or who were found to have a clot by chance. It aims to improve how doctors diagnose, manage, and estimate risk, which may lead to better, more tailored care for you.
Mainz, Rhineland-PalatinateAges 18 years+ - NCT02670031Recruiting
Blood pressure study using heart MRI in adults
This study looks at how the heart muscle reacts in people with high blood pressure. You may have heart imaging (MRI) and blood pressure monitoring to understand patterns and potential ways to help.
SingaporeAges 21–99 - NCT02194816Recruiting
Online survey study for people with Parkinson’s or Parkinsonism
This study looks at how changing certain factors over time relates to symptoms in Parkinson’s disease and related conditions. You may help researchers by completing longer online surveys every 6 months for 5 years.
Kenmore, WashingtonAges 19 years+ - NCT02674230Recruiting
Obesity and body clock registry for healthy aging
This study is a registry that collects health information to better understand how weight and your body’s daily rhythm may affect healthy aging. It may help researchers identify patterns linked to aging and future health risks.
TaoyuanAges 20 years+ - NCT02878967Recruiting
Long-term follow-up after blocking a brain aneurysm
This study checks how patients do over the long term after a procedure called endovascular embolization that blocks blood flow to a brain aneurysm. It mainly helps doctors understand long-term safety and outcomes for this treatment.
ParisAges 18 years+ - NCT02275637Recruiting
Testing heart-rhythm monitoring from implanted devices
This study checks how well implanted heart rhythm devices can detect rhythm problems in everyday patients. It may help improve detection and follow-up over the next year.
BergamoAges Any age - NCT02448485Recruiting
Measuring Troponin T blood levels in aortic valve narrowing
This study looks at a blood test called high-sensitivity troponin T in people with aortic stenosis (a narrowed heart valve). The results may help doctors understand heart strain or risk in this condition.
Innsbruck, TyrolAges Any age - NCT02543996Recruiting
Providing blood or tissue samples to study disease
This study collects and stores biological samples (like blood and cord blood) to help researchers understand what causes disease. You may be asked to provide samples during pregnancy, delivery, or from an affected person, depending on eligibility.
Bethesda, MarylandAges 1 month–100 years - NCT02269592Recruiting
Study blood marker changes in early, symptom-free blood cancers
This study follows people with early, “precursor” blood conditions to learn what changes in their blood or bone marrow signal progression. It may help doctors better predict outcomes and understand why some people develop symptom-causing cancer.
Boston, MassachusettsAges 18 years+ - NCT02438085Recruiting
Registry study of acute chest pain heart events in Ferrara
This study records information about heart problems that require hospital care, such as acute coronary syndromes. It helps researchers understand how these events happen in the Ferrara area and what care people receive.
Cona, FerraraAges 18 years+ - NCT02211365Recruiting
Hypertension patient registry in Campania Salute Network
This trial is a registry that collects information about people with high blood pressure in the Campania region. It may help researchers understand hypertension better and improve future care.
Naples, NapoliAges 18–85 - NCT02820233Recruiting
Study of a heart-signal drug during bypass surgery
This study looks at a treatment that affects signals between heart cells in people with severe coronary artery disease who are scheduled for bypass surgery. The goal is to see if changing these heart-cell signals can improve heart outcomes around the time of surgery.
Portland, MaineAges 18 years+ - NCT02153307Recruiting
Check heart rhythm at home after new left bundle block
This study uses a portable heart monitor to watch for a serious heart rhythm problem called high-degree atrioventricular block in people who develop a new, persistent left bundle branch block after a TAVI valve procedure. It may help catch dangerous rhythm changes earlier and guide treatment sooner.
Québec, QuebecAges 18 years+ - NCT02323399RecruitingPhase 4
IV medicine study for blood pressure effects during anesthesia
This trial studies how phenylephrine given through an IV affects blood pressure during procedures under general or spinal/epidural anesthesia. It may help doctors understand how to control blood pressure more safely during surgery.
Wilmington, DelawareAges 12–16 - NCT02368041Recruiting
Near-infrared scan test in children with heart failure
This study tests whether a near-infrared “light scan” on the hand can help doctors in children with heart failure who are stable on their usual medications. It may give additional information about blood flow and circulation in the body without using invasive procedures.
Gainesville, FloridaAges Up to 25 years - NCT02593565Recruiting
Pregnancy blood-vessel disease registry study
This is a pregnancy registry that collects information from people with certain blood-vessel inflammatory diseases during pregnancy. It helps researchers better understand these conditions in pregnancy and may guide future care.
Tampa, FloridaAges 18–50 - NCT02804269Recruiting
Ages 16 to 90 for heart disease information collection
This is a repository program that collects health and imaging-related information to better understand heart (cardiovascular) health and disease. You may be able to join if you are in the age range and share your data for research use.
Singapore, SingaporeAges 16–90 - NCT02355457Recruiting
Blood marker study in new heart attack symptoms
This study looks at blood “biomarkers” (signals in blood tests) in people who arrive with symptoms that could be a heart attack. It may help doctors spot and manage acute heart problems sooner and more accurately.
HamburgAges 18 years+ - NCT02258724Recruiting
Adults with congenital heart disease in Swiss GUCH centers
This study is a national registry that collects health information from adults (age 18+) with congenital heart disease. It may help researchers better understand care and outcomes in people treated at specialized Swiss centers.
BaselAges 18 years+ - NCT02381301Recruiting
Blood and heart CT scan tests for heart blood-flow markers
This study looks at whether certain lab “biomarkers” and a heart CT scan can help understand heart blood flow in people getting routine coronary CT angiography (CCTA). It may be useful for improving how doctors assess heart health from scan and blood results.
Maastricht, LimburgAges 18 years+ - NCT02762162Recruiting
Registry of heart artery patients’ platelet test results
This registry collects information from people with coronary (heart) artery disease who already had platelet-related blood tests as part of usual care. The goal is to better understand how platelet responses relate to treatment and outcomes, which may help future care.
ParisAges 18 years+ - NCT02869555Recruiting
Study of people with multiple myeloma in a patient database
This is a study that collects information from people diagnosed with multiple myeloma. It may help researchers understand the disease and improve future care by using past and ongoing patient data.
Marseille, Bouches-du RhôneAges 18–95 - NCT02879123Recruiting
Recovery after stroke treatment with a clot-removal procedure
This trial studies how the brain and nervous system recover about 3 months after a clot-removal treatment for an acute ischemic stroke. It may help doctors better understand what recovery looks like after this kind of stroke care.
ParisAges Any age
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.