Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 10,066 recruiting studies in this area right now.
By phase
- Not applicable8,037
- Phase 2488
- Phase 4482
- Phase 3452
- Phase 1360
- Phase 1/Phase 2161
- Phase 2/Phase 386
Top conditions
- Stroke856
- Heart Failure566
- Hypertension403
- Cardiovascular Diseases390
- Coronary Artery Disease375
- Multiple Myeloma329
- Atrial Fibrillation273
- Ischemic Stroke199
- Atrial Fibrillation (AF)146
- Acute Ischemic Stroke141
- Pulmonary Hypertension104
- Myocardial Infarction98
- Congenital Heart Disease87
- Peripheral Arterial Disease85
- Stroke, Ischemic84
- Acute Coronary Syndrome83
- Obesity80
- Aortic Valve Stenosis78
Leading sponsors
- Mayo Clinic94
- Assistance Publique - Hôpitaux de Paris92
- National Taiwan University Hospital74
- China National Center for Cardiovascular Diseases59
- Beijing Tiantan Hospital54
- 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
- California467
- Alabama198
- Massachusetts181
- Arizona176
- New York166
- Florida145
- Illinois120
- Maryland120
- Texas120
- Minnesota119
Recruiting studies10,063 total
- NCT07611084Recruiting
Atrial Fibrillation Study in Older Adults in Rural China
This study follows older adults in rural China who have atrial fibrillation (an irregular heart rhythm) to better understand the condition and screen for heart failure. Researchers want to learn more about how these conditions affect people in rural communities.
Taizhou, JiangsuAges 65–80 - NCT07611136Recruiting
Brain Vessel Disease Progression After Different Stroke Types
This study examines how small blood vessel disease in the brain progresses differently depending on whether you've had a recent stroke. Researchers will use MRI scans to track changes over time and better understand this condition.
Ulm, Baden-WurttembergAges 18 years+ - NCT07611747RecruitingPhase 4
Ultrasound Screening to Prevent Heart Disease in Rheumatic Patients
This study tests whether using ultrasound to look at arteries in the neck can help prevent heart attacks and strokes in people with inflammatory joint diseases like rheumatoid arthritis or lupus. Researchers will use the results to guide treatment decisions.
Alicante, AlicanteAges 50 years+ - NCT07612774RecruitingPhase 4
Early cholesterol-lowering drug after heart attack study
This study tests whether starting evolocumab (a cholesterol-lowering injection) soon after a heart attack helps prevent future heart problems. You'll receive the study drug or placebo for 52 weeks while your heart is monitored with imaging scans.
Chengdu, SichuanAges 40–75 - 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+ - 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+ - NCT07614074Recruiting
Understanding Recovery from Coma and Unconsciousness
This study follows patients who have been in a coma (deep unconsciousness) for at least 24 hours due to a brain injury. Researchers will track how patients recover over time to better understand which factors help predict who will wake up and how well they'll recover.
San Francisco, CaliforniaAges 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 - 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+ - 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+ - 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+ - NCT07617376RecruitingPhase 4
Flu shot before leaving hospital after heart problems
This study tests whether giving a flu vaccine to patients before they leave the hospital after a heart condition improves their health. The vaccine may help protect your heart and prevent serious flu complications while you recover.
WroclawAges 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+ - NCT07617961Recruiting
THERAVEX Spray for Wound and Ulcer Healing
This trial tests a topical spray treatment designed to help heal various types of skin wounds, including burns, pressure sores, and diabetic ulcers. The spray may help your wound heal faster and more effectively.
BarcelonaAges 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+ - 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+ - NCT07619144Recruiting
Improving Heart Pump Outcomes Using Advanced Data Analysis
This study examines detailed data from patients who received an Impella 5.5 heart pump to treat cardiogenic shock—a life-threatening condition where the heart cannot pump enough blood. Researchers use advanced computer analysis to understand what helps patients recover best.
ViennaAges 18 years+ - 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 - 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+ - 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 - 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 - NCT07620626Recruiting
Study of Woven EndoBridge for Brain Aneurysm Treatment
This study looks at how well a special device called Woven EndoBridge works for treating brain aneurysms (weakened blood vessels in the brain). Researchers will review records of patients already treated and also follow new patients to see how they do over time.
BeijingAges Any age - NCT07620925Recruiting
Aortic Valve Calcium Score Study Using Heart Ultrasound
This study develops and tests a new way to diagnose severe aortic stenosis (narrowing of the aortic valve) by measuring calcium buildup on the valve using heart ultrasound. If you're already getting both an ultrasound and a CT scan of your heart, this study compares how well the ultrasound method can identify severe stenosis.
BolognaAges 18 years+ - NCT07621055Recruiting
AI software to guide heart rhythm ablation treatment
This study tests new AI software (Volta AF-Xplorer II) that helps doctors guide catheter ablation—a procedure to treat irregular heartbeats like atrial fibrillation. The software may help doctors perform the procedure more effectively and safely in real-world settings.
MarseilleAges 18 years+
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 10,066 recruiting cardiology studies from the U.S. registry right now, out of 15,554 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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- Immune system & allergy
- Women’s health & pregnancy
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- Blood & lymphatic
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- 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.