Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,626 recruiting studies in this area right now.
By phase
- Not applicable7,647
- Phase 4471
- Phase 2470
- Phase 3439
- Phase 1350
- Phase 1/Phase 2161
- Phase 2/Phase 388
Top conditions
- Stroke798
- Heart Failure538
- Hypertension390
- Cardiovascular Diseases374
- Coronary Artery Disease361
- Multiple Myeloma328
- Atrial Fibrillation258
- Ischemic Stroke190
- Atrial Fibrillation (AF)154
- Acute Ischemic Stroke138
- Pulmonary Hypertension105
- Myocardial Infarction96
- Congenital Heart Disease83
- Peripheral Arterial Disease80
- Stroke, Ischemic77
- Aortic Valve Stenosis76
- Acute Coronary Syndrome74
- Obesity74
Leading sponsors
- Mayo Clinic93
- Assistance Publique - Hôpitaux de Paris88
- National Taiwan University Hospital67
- China National Center for Cardiovascular Diseases60
- Second Affiliated Hospital, Zhejiang University, School of Medicine57
- Beijing Tiantan Hospital53
- Insel Gruppe AG, University Hospital Bern49
- Massachusetts General Hospital49
- Yonsei University48
- Johns Hopkins University45
Where studies are running
- California449
- Alabama195
- Arizona183
- Massachusetts174
- New York165
- Florida141
- Texas122
- Maryland119
- Minnesota118
- Illinois111
Recruiting studies9,626 total
- NCT02026843Recruiting
Testing eye fluid markers in chorioretinal eye diseases
This study looks at substances (“biomarkers”) in the clear fluid inside the eye to better understand several eye conditions that affect vision. Your results may help doctors learn how these diseases work and how treatments might be chosen.
Daegu, KyungsangpookdoAges 20–80 - NCT07334977RecruitingPhase 2
Brain and spinal cord stimulation after stroke or injury
This trial tests whether stimulating the brain and spinal cord together can help people recovering from stroke or spinal cord injury. It also includes a healthy control group for comparison.
BordeauxAges 18 years+ - NCT07338370Recruiting
PGE2 levels and heart duct closure in preterm babies
This trial measures a substance called prostaglandin E2 (PGE2) in preterm babies to see if it can predict whether a heart blood vessel (ductus arteriosus) will close on its own or need treatment. This could help doctors decide when to use medication to close the vessel.
Cairo, AbbasiaAges 1 day–1 week - NCT07342036Recruiting
Study of new heart device leads and tricuspid valve leakage
This study looks at how a new pacemaker or defibrillator lead may affect the tricuspid valve (the valve between the right upper and lower heart chambers). It helps doctors understand if the lead causes leakage (regurgitation) over time.
Bad Oeynhausen, North Rhine-WestphaliaAges 18 years+ - NCT07334834Recruiting
Better cholesterol management for people with artery disease
This study tests a team-based approach to help people with artery disease (like heart attacks or leg blockages) get their cholesterol to a healthier level. If your LDL is above 70, you may benefit from extra support to manage your medications.
Aurora, ColoradoAges 18 years+ - NCT07335510Recruiting
Baroreflex therapy for heart failure patients
This trial tests a device that stimulates a nerve in your neck to help your heart pump better. It is for people with heart failure and a weak heart pump who still have symptoms despite taking medications.
San Francisco, CaliforniaAges 18 years+ - NCT07336225Recruiting
CMR Study for Heart Device Patients
This study looks at people who already had a heart MRI before getting a pacemaker, defibrillator, or other heart device. It aims to learn how MRI results might predict long-term outcomes for these patients.
BeijingAges 18 years+ - NCT07339007Enrolling by invitation
Validating a heart ultrasound training program for family doctors
This study tests whether a training program helps family doctors use a focused heart ultrasound (FoCUS) to assess patients. If you need a heart ultrasound as part of your regular care, you may be able to join.
Barcelona, CataloniaAges 15 years+ - NCT07339787Recruiting
How well do ER doctors diagnose TIAs?
This study looks at how well doctors in the emergency room diagnose transient ischemic attacks (TIAs) — temporary, minor strokes that quickly resolve. It aims to improve future care by reviewing records of people who had these symptoms.
StrasbourgAges 18 years+ - NCT07334457Recruiting
Platelet Changes While on ECMO Support
This study looks at how blood cells called platelets change in people who are on a heart-lung machine (ECMO) in the ICU. It aims to better understand how the body responds to this support.
StrasbourgAges 18 years+ - NCT07343206Recruiting
Early norepinephrine for sepsis with low blood pressure
This trial tests whether giving a medicine called norepinephrine early and adjusting the dose quickly can help people with sepsis who have very low blood pressure. It is for adults who are diagnosed within the last 3 hours and who have not already received this medicine.
Bangkok Noi, BangkokAges 18 years+ - NCT07342179Recruiting
Monitoring immune cells after CAR-T therapy for myeloma
This study looks at how your immune system responds after you receive CAR-T cell therapy for multiple myeloma. The goal is to learn more about the treatment's effects and how well it works.
PoitiersAges 18 years+ - NCT07341932Recruiting
Heart mapping test for stable coronary artery disease treatment
This trial tests whether a non-invasive heart mapping technique can guide treatment for stable coronary artery disease, potentially avoiding more expensive or invasive tests. You may join if you have stable angina and a blockage of 50-90% in a major heart artery.
Beijing, Beijing MunicipalityAges 18–80 - NCT07341412Enrolling by invitation
Study of sex chromosome disorders in fetuses and children
This study looks at the genetic and physical health of babies and children who have a sex chromosome disorder (like having an extra or missing X or Y chromosome). It also compares them to children without these conditions. The goal is to learn more about how these disorders affect development.
AarhusAges birth–50 years - NCT07335770Enrolling by invitation
Heart MRI for diagnosing and managing heart masses
This trial uses cardiac MRI to better understand heart masses (tumors or clots) and guide treatment decisions. It may help determine what the mass is and how it affects your health.
Ages Any age - NCT07343297Recruiting
Ask questions about clinical trials
This study helps people learn about clinical trials and find out if they might be a good fit. It is for patients who are already getting treatment at a Karmanos or McLaren center and can read English well enough to complete surveys.
Bay City, MichiganAges 18 years+ - NCT07336316Enrolling by invitation
Heart MRI study for early heart failure with preserved pump function
This trial uses advanced MRI scans to study early signs of heart failure in people whose heart pumps normally but who have risk factors like diabetes, high blood pressure, or obesity. It aims to improve detection and understanding of this condition.
Ages Any age - NCT07336290Enrolling by invitation
One-stop MRI for hypertrophic cardiomyopathy
This study uses a single, advanced heart MRI to get a complete picture of hypertrophic cardiomyopathy—a condition where the heart muscle is thickened. It aims to make diagnosis and treatment planning faster and easier for patients.
Ages Any age - NCT07340307Recruiting
Acupuncture for pain after anal surgery
This trial tests whether a special wrist-ankle acupuncture technique can reduce pain after perianal surgery. It may be an option for people who have at least moderate pain and want to avoid stronger painkillers.
PutianAges 18–75 - NCT07342075Recruiting
Registry Study of Small Vessel Disease in the Brain
This study tracks people with cerebral small vessel disease (changes in the brain's tiny blood vessels) to learn more about how the condition progresses. It may be a good fit if you are 50 or older and have had an MRI showing these changes.
Beijing, Beijing MunicipalityAges 50 years+ - NCT07339852Recruiting
Pharmacist-led diabetes care in community pharmacies
This study tests whether a pharmacist-led program can help people with type 2 diabetes who are not meeting their blood sugar goals. The goal is to see if working with a pharmacist in your local pharmacy can improve your diabetes management.
Edmonton, AlbertaAges 18 years+ - NCT07339475Recruiting
Using vein size to predict blood pressure drops in older adults during hip or leg surgery
This study uses an ultrasound to measure the size of a vein in your leg before surgery to see if it can predict a drop in blood pressure during the procedure. If you are over 60 and having planned lower-limb surgery with spinal anesthesia, this non-invasive test might help your doctors prepare for your care.
CairoAges 60 years+ - NCT07335900Recruiting
Studying heart healing after TAVI with FAPI-PET scan
This study uses a special type of PET scan (FAPI-PET) to see how the heart heals after a less invasive valve replacement procedure called TAVI. It aims to help doctors better understand the changes in heart tissue after treatment for aortic stenosis.
ShanghaiAges 18 years+ - NCT07338175RecruitingPhase 3
Testing minocycline for brain bleeding recovery
This trial tests if the antibiotic minocycline can help people recover after a spontaneous brain bleed (intracerebral hemorrhage). It is for patients who have a moderate-sized bleed and are within 48 hours of symptoms starting.
Beijing, Beijing MunicipalityAges 18–80
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,626 recruiting cardiology studies from the U.S. registry right now, out of 14,734 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.