Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,613 recruiting studies in this area right now.
By phase
- Not applicable7,634
- Phase 2471
- Phase 4471
- Phase 3438
- Phase 1350
- Phase 1/Phase 2161
- Phase 2/Phase 388
Top conditions
- Stroke796
- Heart Failure535
- Hypertension389
- Cardiovascular Diseases374
- Coronary Artery Disease362
- Multiple Myeloma328
- Atrial Fibrillation259
- Ischemic Stroke190
- Atrial Fibrillation (AF)154
- Acute Ischemic Stroke139
- Pulmonary Hypertension104
- Myocardial Infarction96
- Congenital Heart Disease83
- Peripheral Arterial Disease80
- Stroke, Ischemic77
- Aortic Valve Stenosis76
- Obesity74
- Acute Coronary Syndrome73
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 Medicine58
- Beijing Tiantan Hospital53
- Insel Gruppe AG, University Hospital Bern49
- Massachusetts General Hospital49
- Yonsei University48
- Johns Hopkins University45
Where studies are running
- California449
- Alabama195
- Arizona182
- Massachusetts174
- New York166
- Florida141
- Texas122
- Maryland118
- Minnesota118
- Illinois111
Recruiting studies9,613 total
- NCT07620262Recruiting
Combined atrial fibrillation treatment and stroke prevention study
This study tests a new approach for people with atrial fibrillation (a type of irregular heartbeat) who are also at high risk for stroke. It combines a procedure to fix the heart's electrical signals with closing off a small pouch in the heart to reduce stroke risk, potentially avoiding long-term blood thinners.
Bay Shore, New YorkAges 18 years+ - NCT07620119Recruiting
AI-assisted heart attack diagnosis in patients with LBBB
This study tests whether artificial intelligence can help doctors more accurately diagnose heart attacks in patients who have a specific heart rhythm pattern called Left Bundle Branch Block (LBBB). The goal is to improve emergency care by reducing delays in identifying who needs urgent treatment.
Konya, KaratayAges 18 years+ - NCT07613840Recruiting
Personalized Blood Clot Prevention After Leg Artery Surgery
This study tests a personalized approach to prevent blood clots in patients who have had surgery to repair blocked arteries in their legs. Researchers want to find the best blood-thinning medication for each individual to reduce serious complications while keeping you safe.
Boston, MassachusettsAges 18 years+ - NCT07614230RecruitingPhase 4
SGLT2 drugs and heart artery health in diabetes
This study tests whether a diabetes medication called SGLT2 inhibitors can slow the buildup of plaque in heart arteries. Researchers will use special CT scans to track changes in your coronary arteries over time.
Beijing, Beijing MunicipalityAges 18–78 - NCT07613996Recruiting
Blood Flow Measurement During Heart Imaging
This study examines how a special measurement technique works when blood vessels are dilated during a heart imaging procedure. It may help doctors better assess whether narrowing in your heart arteries needs treatment.
Shanghai, Please SelectAges 18 years+ - NCT07618741Recruiting
Improving AF Ablation Outcomes in Patients with Obesity
This study tests whether special care strategies can help obese patients have better results after a catheter ablation procedure for atrial fibrillation (a heart rhythm problem). Catheter ablation uses heat or cold to fix the irregular heartbeats.
TaipeiAges 20 years+ - NCT07620210Recruiting
Swallowing Therapy and Pressure Ball Training After Stroke
This study tests whether a swallowing therapy program (CTAR) combined with a pressure ball exercise helps older adults who had a stroke recover their ability to swallow safely. Many stroke survivors struggle with swallowing, which can lead to serious health problems, so this research aims to find better ways to help.
Tainan, Tainan CityAges 65–90 - NCT07619703Recruiting
Stroke Recovery Program Combining Therapy and Brain Stimulation
This study tests whether combining a hand-therapy program (CIMT) with mild electrical brain stimulation (tDCS) helps women recover hand function and quality of life after a stroke. You would attend therapy sessions over several weeks while receiving non-invasive brain stimulation to help rewire your brain's movement control.
Temuco, AraucaniaAges 30–85 - NCT07618416Recruiting
Blood Pressure Prediction Before Anesthesia in Older Adults
This study tests a computer model that uses heart-rhythm measurements to predict whether your blood pressure will drop dangerously after anesthesia begins. If accurate, it could help doctors prepare and protect you during surgery.
Beijing, ChinaAges 65 years+ - NCT07613632Recruiting
Lung Blood Flow Changes After Vein Graft Repair
This study measures how blood flow and oxygen distribution in your lungs change after a procedure to unclog a dialysis access graft. Researchers use painless electrode patches on your chest to track these changes and better understand how the procedure affects your breathing.
WuhuAges 18 years+ - NCT07614659Recruiting
Heart health screening for adults in Uppsala, Sweden
This study invites residents of Uppsala, Sweden who are turning 50, 55, 60, 65, 70, or 75 to participate in cardiovascular (heart and blood vessel) health screening. The goal is to help identify heart health risks early so you can take steps to stay healthy.
UppsalaAges 50–75 - NCT07617077Recruiting
Nasal Swab vs. Valsalva Maneuver for Heart Rate Episodes
This study compares two simple, non-medication methods to stop sudden fast heartbeat episodes: a nasal swab technique versus a breathing exercise. Both are safe first-line treatments, and this trial helps doctors understand which works better.
Istanbul, PendikAges 18 years+ - NCT07617974Recruiting
Heart valve changes in atrial fibrillation patients
This study looks at how atrial fibrillation (a common heart rhythm problem) affects the tricuspid valve—one of your heart's four valves. Researchers will use special ultrasound imaging to understand these changes and help improve future treatment.
Milan, MilanAges 18 years+ - NCT07615023Recruiting
Blood cell changes and heart attack recovery
This study looks at how certain harmless changes in blood cells affect recovery after a first heart attack. It may help doctors understand why some people recover better than others.
Innsbruck, TyrolAges 18–75 - NCT07620275RecruitingPhase 1
Cell therapy for multiple myeloma that has come back
This trial tests a new cell therapy (KSVCBD) for people with multiple myeloma that has returned or not responded to other treatments. It may help if your cancer cells have certain markers, CD19 or BCMA.
Beijing, Beijing MunicipalityAges 18–75 - NCT07612956Recruiting
High-altitude training effects on teenage rowers' performance
This study tests whether training at high altitude for 4 weeks helps teenage male rowers improve their sport performance, fitness, and heart and lung health. Researchers will measure changes in body composition, rowing ability, and how well your heart and lungs work.
Macao, MacaoAges 12–19 - NCT07620379Recruiting
Pressure-Relief Materials for Diabetic Foot Ulcers
This study tests special cushioning materials designed to reduce pressure and help heal diabetic foot ulcers. Researchers want to find the best way to distribute pressure on the foot to support healing and prevent future ulcers.
Valencia, ValenciaAges 55–75 - NCT07614386Recruiting
Radial artery access outcomes in heart and vessel procedures
This registry collects data from patients undergoing heart or blood vessel procedures using a small artery in the wrist (radial or ulnar artery) for access. Researchers track outcomes to better understand the safety and effectiveness of this approach.
Mersin, MezitliAges 18 years+ - NCT07614724Recruiting
How Your Body Responds to Salt in Diet
This study tests whether your blood pressure is sensitive to salt intake. Researchers will provide you with controlled meals for two weeks to see how your body responds, then invite qualifying participants to continue with a personalized follow-up study.
BeijingAges 20–65 - NCT07614906Recruiting
Nitric Oxide Levels to Predict Blood Vessel Spasms After Brain Bleeding
This study examines whether a substance called nitric oxide in brain fluid can help doctors predict who will develop dangerous blood vessel tightening after a subarachnoid hemorrhage—a serious type of brain bleeding. The goal is to find an early warning sign so doctors can intervene faster.
Boston, MassachusettsAges 18 years+ - NCT07617844Recruiting
Advanced MRI imaging for heart disease diagnosis
This study uses advanced magnetic resonance imaging (MRI) scans to better understand and diagnose heart disease. If you have suspected or confirmed heart problems, this trial may help doctors get clearer pictures of your heart muscle and tissue to figure out what's causing your symptoms.
Hangzhou, ZhejiangAges 18 years+ - NCT06703320Recruiting
Virtual reality pathfinding study for stroke recovery
This study uses a virtual reality pathfinding game to see how your brain activates after a stroke. It may help doctors understand how to improve recovery.
Chongqing, Chongqing MunicipalityAges 18–80 - NCT06703307Recruiting
Brain markers for stroke-related thinking changes
This study uses a special brain scanning technique (fNIRS) to look for markers that show how stroke affects thinking. Both people who have had a stroke and healthy volunteers can join.
Chongqing, Chongqing MunicipalityAges 18–80 - NCT07615868RecruitingPhase 1
New blood-thinner study for heart disease patients in China
This study tests a new medication called selatogrel in people with chronic coronary syndrome (long-term heart disease caused by narrowed heart arteries). Researchers want to see how the body processes this drug and whether it helps prevent future heart problems.
BeijingAges 18–85
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,613 recruiting cardiology studies from the U.S. registry right now, out of 14,690 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
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- Blood & lymphatic
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- Infections
- Genetic & congenital
- Bones, joints & muscles
- Pain
- Injuries & trauma
- Mouth & dental
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- 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.