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
- NCT07738419Recruiting
AI Heart Ultrasound Measurement Accuracy Study
This study tests an artificial intelligence program designed to automatically take measurements from standard heart ultrasound images. It aims to see if the AI works as well as expert doctors.
Milan, LombardyAges 18 years+ - NCT07737431Recruiting
Wrist-hand rehab device test for stroke survivors
This trial tests a new device that combines sensor and muscle signals to help you control wrist and hand movements after a stroke. It aims to improve your coordination and function.
Hung Hom, KowloonAges 30–70 - NCT07737873Recruiting
Movement and brain function after chronic stroke
This study looks at how stroke affects your movement and nervous system over time. You will do simple movement tests and answer quality-of-life surveys to help researchers understand how to improve recovery.
Sacramento, CaliforniaAges 18 years+ - NCT07736222Recruiting
Does chewing affect artery stiffness in healthy adults?
This study looks at how your oral health and chewing habits might relate to your artery stiffness—a measure of heart health. Researchers will test participants' chewing ability and check their arteries using simple, non-invasive methods.
Innsbruck, TyrolAges 18 years+ - NCT07737236Recruiting
Ruscus study for symptom relief in chronic vein problems
This study tests a natural plant extract called Ruscus to see if it helps control symptoms of chronic venous insufficiency, a condition where leg veins have trouble moving blood back to the heart. It is for people who are already starting this treatment as part of their regular care.
Ankara, AnkaraAges 18–75 - NCT07734194Recruiting
Studying a new sedation combo for afib treatment
This trial tests a mild sedation method using remimazolam and fentanyl during a procedure called pulsed-field ablation for atrial fibrillation (afib). It aims to find a safe and effective way to keep you comfortable without deep sedation.
PragueAges 18 years+ - NCT07740239Recruiting
Study on frailty in seriously ill adults
This study looks at why some seriously ill adults become frail. It involves imaging and other tests to help doctors better understand and care for patients with serious conditions.
TampereAges Any age - NCT07735156Recruiting
Treating Pelvic Pain with Vein Blockage
This study tests a minimally invasive procedure that blocks abnormal veins in the pelvis to relieve long-term pelvic pain. It may help women with pelvic congestion syndrome.
Sohag, Sohag GovernorateAges 17–55 - NCT07738523RecruitingPhase 2/Phase 3
Caffeine and heart rate control in permanent atrial fibrillation
This trial tests whether stopping caffeine for up to two months helps control heart rate in people with permanent atrial fibrillation. If you drink at least one cup of caffeinated coffee a day, you may be able to join and help find out if giving up caffeine improves your heart rate.
Getafe, MadridAges 18–80 - NCT07736885Recruiting
Hand stimulation for thinking problems after stroke
This study tests a gentle, painless electrical stimulation on specific points on the hands to see if it helps improve thinking and memory after a stroke. It is for people who have had a stroke in the last 2 weeks to 6 months and are noticing some cognitive changes.
Tianjin, Tianjin MunicipalityAges 35–80 - NCT07740434Recruiting
Work frustration and heart health blood pressure study
This study looks at how work-related frustration may affect blood pressure and heart health. Participation involves having your blood pressure checked during a routine visit to your doctor, which may help identify early risks.
ChenôveAges 40–65 - NCT05799326Recruiting
Levofloxacin after sudden stroke to improve safety and recovery
This trial tests whether the antibiotic levofloxacin can be given soon after an acute ischemic stroke to improve outcomes and monitor side effects. It’s for people with a moderate stroke severity who are not having certain emergency treatments or infections.
Changchun, JilinAges 18–75 - NCT07738107RecruitingPhase 1/Phase 2
Study of ATR 1072 for PRKAG2 syndrome
This trial tests a new medicine called ATR 1072 for people with PRKAG2 syndrome, a genetic heart condition. It aims to see if the drug is safe and can help manage symptoms.
Kansas City, MissouriAges 18–65 - NCT07733960Recruiting
Pacing system study for heart pacing therapy
This trial tests a new pacing system designed to improve how pacemakers work. It may help people who need a pacemaker with left bundle branch area pacing.
Madurai, Tamil NaduAges 18 years+ - NCT07739667Recruiting
Camera-based blood pressure monitoring study
This study tests a new way to measure blood pressure using a camera, without needing a cuff. It may make checking blood pressure easier and more comfortable.
TampereAges 18 years+ - NCT05845905Recruiting
Remote arm treatment to lower blood pressure in older adults
This study tests whether a simple “remote conditioning” method done on the arm can help lower blood pressure in older adults with hypertension. It may help people whose blood pressure is high but not dangerously high at the time of screening.
Changchun, JilinAges 65–85 - NCT05679024RecruitingPhase 3
Apixaban to prevent stroke in atrial fibrillation and kidney failure
This trial tests apixaban (a blood thinner) to prevent stroke in people with atrial fibrillation or atrial flutter who have very poor kidney function or are on dialysis. If you qualify, you may help researchers find a safer way to lower stroke risk for this higher-risk group.
HelsinkiAges 18 years+ - NCT04888247Recruiting
Testing a new mitral valve replacement for high-risk patients
This study checks whether an innovative device can safely replace a damaged mitral valve in people who are higher risk for open-heart surgery. It looks at how well the procedure and follow-up work for improving mitral leakage symptoms.
AuchenflowerAges 18 years+ - NCT05954741Recruiting
Rehab program to improve thinking in recent vascular memory problems
This trial tests a structured, multi-part rehabilitation program to help people with early dementia symptoms from vascular or mixed causes. If you qualify, you may be offered the rehab program and compared with another approach to see if thinking and daily function improve.
Montescano, PaviaAges 65–80 - NCT06625996Recruiting
Carbs before surgery for faster recovery
This study looks at whether drinking carbohydrate-rich liquids before surgery helps you recover faster. It is for people with heart conditions, but not for those who need insulin for diabetes.
AsyutAges 18 years+ - NCT07727395RecruitingPhase 3
Clot-busting drug after successful clot removal for stroke
This trial tests whether giving a clot-busting drug (alteplase) directly into the brain artery after a successful clot removal improves recovery in people with severe stroke. It is for patients who have had a thrombectomy and still have a large blocked artery in the front of the brain.
An GiangAges 18 years+ - NCT07728539Recruiting
Comparing a faster ablation method for atrial fibrillation
This study compares a newer, faster type of ablation (high-power short-duration) with the standard approach for treating atrial fibrillation. The goal is to see which method is safer and more effective at restoring a normal heart rhythm.
MoscowAges 18–70 - NCT05826548Recruiting
Telerehabilitation program for memory, Parkinson’s, and stroke needs
This trial studies a home-based exercise and training program delivered by telerehabilitation (remote care) for people with mild cognitive impairment, Parkinson’s disease, or stroke. It may help improve day-to-day thinking and movement skills by supporting you with structured practice from home.
Lido, VeneziaAges 18–85 - 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+
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.
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.