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
- NCT07535203Recruiting
Heart Surgery Outcomes in Single-Ventricle Disease
This study follows children with a rare heart condition (univentricular heart) who need multiple surgeries, including a procedure called Fontan. Researchers want to understand how different blood-flow patterns after surgery affect long-term health and outcomes.
Jakarta, DKI JakartaAges Any age - NCT07537868RecruitingPhase 2
Montelukast to reduce heart damage after heart attack
This study tests whether montelukast (a medication that reduces inflammation) can limit heart damage when given immediately after a sudden heart attack. Researchers will measure inflammation markers and heart injury to see if this drug helps patients recover better.
Al MansurahAges 30–75 - NCT07539766Recruiting
Obesity Surgery Study to Prevent Heart Problems
This study follows people with obesity who are having weight-loss surgery to see if the surgery can help prevent a specific type of heart problem (HFpEF) that sometimes develops in people carrying excess weight. Researchers will track your heart health and metabolism before and after surgery.
Heerlen, LimburgAges 35 years+ - NCT07541222Recruiting
Blood pressure medications and surgery recovery outcomes
This study looks at how blood pressure medications affect low blood pressure episodes that happen during and after heart surgery. Researchers want to understand if the number of blood pressure drugs you take before surgery changes how your body handles blood pressure during the operation.
KonyaAges 40 years+ - NCT07534917Recruiting
New Pacemakers and Heart Function Study
This study compares newer pacemaker types to see how well they work and how they affect your heart's pumping ability and valve function over a short period. You'll be monitored closely with heart imaging to understand which pacemaker performs best.
LondonAges 18 years+ - NCT07537621Recruiting
How the heart's right chamber responds to fluids in ICU
This study watches how the right side of your heart responds when doctors give you extra fluids to improve blood flow during a critical illness. Understanding this response may help doctors make better decisions about fluid treatment in the ICU.
ReimsAges 18 years+ - NCT07541196Recruiting
PAW-Hydrogel treatment for long-lasting wound healing
This study tests a special gel called PAW-Hydrogel to help heal chronic wounds (wounds that have not closed after 3+ months). The gel may help wounds close faster by supporting the natural healing process.
Ocoyoacac, State of MexicoAges 18 years+ - NCT07539597Recruiting
Better Blood Pressure Care in New York Emergency Rooms
This study tests new ways to help people with high blood pressure get better control of it. If you've visited an emergency room with high blood pressure readings, researchers want to help you manage it better with new support and follow-up care.
New York, New YorkAges 18 years+ - NCT07539532Recruiting
AI model to predict heart problems after stomach surgery
This study compares a new artificial intelligence tool with traditional methods to predict which patients might have heart-related complications after gastrointestinal surgery. The goal is to find better ways to identify high-risk patients and potentially improve their care.
Hà NộiAges 16 years+ - NCT07540143Recruiting
Blood pressure management program for young women
This study tests a program to help women aged 18–44 with high blood pressure who are taking blood pressure medication. The program uses phone and internet tools to help you manage your blood pressure better at home.
Chicago, IllinoisAges 18–44 - NCT07541768Recruiting
Training Residents to Use Ultrasound for Fluid Assessment
This study teaches medical residents how to use a bedside ultrasound technique called VExUS to check if patients have too much fluid in their body. You'll learn a specific skill that could help you assess patients faster and more accurately.
BernAges Any age - NCT07542509Recruiting
Digital sound analysis for newborn heart screening
This study uses digital technology to analyze heart sounds in newborns under 30 days old. The goal is to develop a simple, non-invasive way to detect heart problems early using sound recordings.
Bologna, BOAges 1 week–4 weeks - NCT07535268Recruiting
Heart rhythm ablation outcomes in minority patients
This registry tracks outcomes for racial and ethnic minority patients undergoing a specific type of heart rhythm treatment (ablation) for atrial fibrillation. The goal is to understand how well this treatment works across different populations.
New York, New YorkAges 18 years+ - NCT07537296Recruiting
Heart Imaging Study After Heart Attack
This study uses advanced CT scans to take detailed pictures of your heart and blood vessels after a recent heart attack treated with stent placement. The goal is to better understand heart damage and predict long-term outcomes.
Nanjing, JiangsuAges 18 years+ - NCT07541092Recruiting
Optrell Catheter for Heart Rhythm Problems from Papillary Muscles
This study compares how well a special heart mapping catheter (Optrell) works in treating irregular heartbeats that start in specific heart muscle areas called papillary muscles. If you're having frequent or bothersome extra heartbeats, this trial may help you get a procedure your doctor already recommends.
New Hyde Park, New YorkAges 18–75 - NCT07534462Recruiting
Heart pump and ultrasound heart function study
This study uses ultrasound (echocardiography) to see how the Impella 5.5 heart pump affects your heart's pumping ability, especially the right side. It might help doctors better understand and care for people who need this pump.
Rochester, New YorkAges 18 years+ - NCT07540741Recruiting
PCSK9 Inhibitors for Large-Artery Stroke Recovery
This trial tests whether a cholesterol-lowering medication called evolocumab (a PCSK9 inhibitor) can help people recover better after a specific type of stroke caused by clogged arteries. The study checks if lowering cholesterol further than usual statins do improves stroke outcomes and is safe.
HeilongjiangAges 18–80 - NCT07541014Recruiting
Home vs. Hospital Heart Rehab After Heart Attack
This study compares two ways to do cardiac rehabilitation (heart exercise and education programs) after a heart attack: one done at home via telehealth (video visits) and one at a clinic. The goal is to see which approach works better and is easier for patients to stick with.
New York, New YorkAges 18 years+ - NCT07536802RecruitingPhase 4
Adenosine Safety and Benefit in Emergency Heart Attack Treatment
This study tests whether giving a medication called adenosine before emergency heart catheterization (a tube procedure to open blocked arteries) helps patients having a heart attack. Adenosine may protect heart tissue and improve outcomes.
Karachi, SindhAges 18–80 - NCT07535398Recruiting
Telehealth Exercise Program for High Lung Blood Pressure
This study tests whether people with elevated pressure in the blood vessels of the lungs can safely exercise at home using video sessions with therapists. It aims to see if remote rehabilitation can improve heart function and daily activity without requiring in-person visits.
Tokat ProvinceAges 18–65 - NCT07534319Recruiting
Brain Blood Flow Changes After Stroke Clot Removal
This study examines how blood flow in the brain changes after a minimally invasive procedure to remove a blood clot during an acute stroke. The research uses MRI imaging to understand brain recovery patterns and may help improve stroke treatment outcomes.
Zurich, Canton of ZurichAges 18 years+ - NCT07541560Recruiting
Group Activities and Music for Stroke Recovery
This study tests whether group leisure activities and music training can help people recover better after a stroke. You would participate in these activities during your hospital stay in the first few weeks after your stroke.
Barcelona, CataloniaAges 18 years+ - NCT07538388Recruiting
Comparing two ways to give norepinephrine during surgery to prevent low blood pressure
This trial compares two ways of giving a drug called norepinephrine to keep blood pressure stable during surgery. If you are 45 or older and having non-cardiac surgery, this study may help prevent low blood pressure and protect your kidneys.
BerlinAges 45 years+ - NCT07541391RecruitingPhase 1
CAR T-cell therapy for relapsed kappa myeloma
This trial tests a new treatment called CAR T-cells (your own immune cells engineered in the lab) designed to fight kappa-restricted multiple myeloma that has come back or stopped responding to standard drugs. The goal is to see if this treatment can help patients whose cancer has progressed despite previous therapies.
Melbourne, VictoriaAges 18 years+
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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- Injuries & trauma
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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.