Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,610 recruiting studies in this area right now.
By phase
- Not applicable7,634
- Phase 2471
- Phase 4471
- Phase 3437
- Phase 1350
- Phase 1/Phase 2160
- Phase 2/Phase 387
Top conditions
- Stroke796
- Heart Failure534
- Hypertension389
- Cardiovascular Diseases373
- Coronary Artery Disease363
- Multiple Myeloma327
- Atrial Fibrillation259
- Ischemic Stroke190
- Atrial Fibrillation (AF)154
- Acute Ischemic Stroke139
- Pulmonary Hypertension104
- Myocardial Infarction96
- Congenital Heart Disease84
- Peripheral Arterial Disease80
- 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
- California451
- Alabama195
- Arizona181
- Massachusetts173
- New York168
- Florida140
- Texas122
- Maryland118
- Minnesota117
- Illinois111
Recruiting studies9,610 total
- NCT07727057Recruiting
New catheter treatment for dangerous heart rhythm problems
This study tests a new catheter-based treatment for people with certain types of very fast or extra heartbeats that come from the lower chambers of the heart. The catheter uses a special energy to stop the abnormal beats and might help if you have had symptoms despite other treatments.
LinzAges 18 years+ - NCT06353568Recruiting
Light therapy to prevent diabetic foot ulcers
This study tests a painless light treatment (photobiomodulation) to see if it can prevent foot ulcers in people with type 2 diabetes who are at risk. If you qualify, you would receive the treatment regularly and be monitored for foot health.
São Paulo, São PauloAges 18–75 - NCT06627387Recruiting
Balance training with augmented reality for home rehab
This study tests a low-cost balance training platform that uses augmented reality to help people with balance problems from stroke or other brain conditions. It aims to see if the platform is easy and safe to use at home with a training partner.
Barcelona, BarcelonaAges 18 years+ - NCT05076019Recruiting
Atorvastatin during heart valve surgery for patients over 60
This trial studies whether taking atorvastatin (a cholesterol medicine) around the time of surgical aortic valve replacement can improve outcomes. It is mainly for people who have not taken similar medicines recently and do not have certain heart rhythm or liver/kidney problems.
OdenseAges 60–95 - NCT02180178Recruiting
Heart catheter registry for slow coronary blood flow
This study builds a database of people who are having a coronary angiography (a heart blood-vessel X-ray test). It aims to better understand conditions like slow blood flow in the heart’s small vessels and may help improve how these conditions are diagnosed and treated.
MainzAges Any age - NCT07724899Recruiting
A new ablation treatment for atrial fibrillation
This study tests a new type of ablation (pulsed field ablation) for people with atrial fibrillation who haven't gotten enough relief from medication alone. It aims to see if isolating the superior vena cava along with the pulmonary veins is safe and effective.
Chengdu, SichuanAges 18 years+ - NCT07732283Recruiting
Testing a simpler 4-patch ECG vs standard 10-patch ECG
This study is testing a new, simpler ECG device (with only 4 sticky patches) against the standard 10-patch ECG. It's for people with heart conditions who are either in the hospital or visiting a cardiologist, and aims to see if the new device is easier to use and still gives a clear reading.
ParisAges 18 years+ - NCT07725185Enrolling by invitation
Can remimazolam protect heart health during surgery?
This study tests whether a sedative called remimazolam can help protect the heart during surgery in older adults. If you are 65 or older and having a longer surgery with general anesthesia, this trial may be for you.
Jiaxing, ZhejiangAges 65 years+ - NCT07725003Recruiting
Home-based rehab program vs. standard physical therapy for stroke recovery
This study compares a home-based motor relearning program with standard physical therapy delivered through video calls, to see which helps stroke survivors improve movement and function better. It may be a good option if you had a stroke 3 to 12 months ago and have access to a device with internet.
Faisalabad, Punjab ProvinceAges 40–70 - NCT07728643Recruiting
Blood vessel particles in children with new high blood pressure
This study looks at tiny particles in the blood (called extracellular vesicles) that may signal early blood vessel changes in children with new high blood pressure. If your child is between 6 and 17, has just been diagnosed with high blood pressure and hasn't started treatment, and is otherwise healthy, this trial may help doctors better understand how high blood pressure affects kids.
OsijekAges 6–17 - NCT07725250Recruiting
AI-guided blood pressure trial for stage I-II hypertension
This study tests whether combining artificial intelligence with personalized medicine can help lower blood pressure in people with stage I or II hypertension (140/90 or higher). If you have high blood pressure and can walk without help, this trial may be for you.
La Jolla, CaliforniaAges 18 years+ - NCT07731490Recruiting
Early detection and treatment of heart failure
This trial tests if a medication can prevent heart failure in older adults who are at risk. It is for people aged 65 or older who are having certain heart procedures or a major surgery.
ViennaAges 65 years+ - NCT07729449Recruiting
Predicting headache after cesarean using ultrasound and oxygen monitoring
This trial measures how well two monitoring tools (optic nerve ultrasound and brain oxygen levels) can predict headache after a planned cesarean. It may help find better ways to prevent post-dural puncture headache.
Ordu, AltinorduAges 18–40 - NCT07725471Recruiting
Comparing breathing and neck release in stroke recovery
This study compares two gentle therapy techniques—special breathing exercises and a hands-on release at the base of the skull—to see which helps stroke survivors with one-sided weakness regain movement and breathing. It may be a good fit if you're still recovering from a first stroke months ago and don't have major heart or lung problems.
AfyonkarahisarAges 18–84 - NCT07728734Enrolling by invitation
Predicting recovery after a brain bleed
This study is testing a way to predict how well people will recover after a brain bleed (intracerebral hemorrhage). It uses information from the first 24 hours to help doctors and families understand the chances of getting better.
Badalona, BarcelonaAges 18 years+ - NCT07728656Recruiting
Trial on blood vessel markers in pregnancy with high blood pressure
This study looks at tiny particles released from blood vessels in pregnant women with high blood pressure. The goal is to find better ways to detect and manage conditions like preeclampsia.
OsijekAges 18 years+ - NCT07726056Recruiting
Heart ablation in athletes with atrial fibrillation
This trial tests if a heart procedure (cardiac ablation) helps endurance athletes who have atrial fibrillation (an irregular heartbeat) perform better in sports. Athletes will track their training data before and after the procedure to see if their performance improves.
MelbourneAges 18–80 - NCT07724925Recruiting
Comparing two arm therapies for stroke recovery
This study compares two types of arm and hand therapy for people recovering from a stroke. It aims to see which approach helps improve arm function and daily living skills.
Nankana SahibAges 45–70 - NCT07724730Recruiting
Moving with and without music after a stroke
This study compares two types of movement practice for people recovering from a recent stroke. One group will do everyday tasks like walking and reaching, and the other will do the same movements but with a rhythmic beat to help with timing and coordination.
Daska KalanAges 40–60 - NCT07725887Recruiting
Structured physical therapy for high-risk heart bypass patients
This trial tests a structured physical therapy program for patients at high risk who are getting heart bypass surgery. The therapy is done in the hospital before and after surgery to help you recover better.
Istanbul, EyupsultanAges 18–90 - NCT07724262Recruiting
Testing the Argos System to measure heart blood flow
This trial is testing a new system called Argos to see if it can measure how much blood your heart pumps more easily than current methods. It is for patients already in the ICU who need a quick change in fluids or blood pressure medicine.
Le Kremlin-BicêtreAges 18 years+ - NCT07728630Recruiting
Blood Vessel Health in Newly Diagnosed Hypertension
This study looks at tiny particles from blood vessel cells to understand early changes in people with newly diagnosed high blood pressure. It compares people with normal blood pressure and those with high blood pressure who have never been treated.
OsijekAges 18 years+ - NCT07726134Recruiting
Diuretic use during kidney transplant to help the new kidney work faster
This trial tests whether giving a diuretic (a medication that helps flush fluids) during kidney transplant surgery helps a deceased-donor kidney start working sooner after the procedure.
London, OntarioAges 18 years+ - NCT07729891Recruiting
Vital sign monitoring after urological surgery
This study tests a system that constantly watches your vital signs (like heart rate and blood pressure) after urological surgery, to catch problems early. It's for people who are not expected to need the Intensive Care Unit after their operation.
Parma, ParmaAges 18 years+
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,610 recruiting cardiology studies from the U.S. registry right now, out of 14,650 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.