Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 10,049 recruiting studies in this area right now.
By phase
- Not applicable8,023
- Phase 2486
- Phase 4480
- Phase 3451
- Phase 1361
- Phase 1/Phase 2161
- Phase 2/Phase 387
Top conditions
- Stroke854
- Heart Failure568
- Hypertension401
- Cardiovascular Diseases390
- Coronary Artery Disease372
- Multiple Myeloma330
- Atrial Fibrillation272
- Ischemic Stroke199
- Atrial Fibrillation (AF)145
- Acute Ischemic Stroke141
- Pulmonary Hypertension103
- Myocardial Infarction99
- Congenital Heart Disease86
- Peripheral Arterial Disease85
- Stroke, Ischemic84
- Acute Coronary Syndrome82
- Obesity80
- Aortic Valve Stenosis79
Leading sponsors
- Mayo Clinic95
- Assistance Publique - Hôpitaux de Paris92
- National Taiwan University Hospital74
- China National Center for Cardiovascular Diseases59
- Beijing Tiantan Hospital53
- 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
- California468
- Alabama199
- Massachusetts182
- Arizona176
- New York165
- Florida145
- Maryland120
- Minnesota120
- Illinois119
- Texas119
Recruiting studies10,046 total
- NCT06886516RecruitingEarly Phase 1
Blood thinner study for cancer patients with low platelets
This study tests if the blood thinner apixaban is safe and effective for cancer patients who have low platelets and a recent blood clot. It may offer a treatment option for those who cannot take standard blood thinners.
Boston, MassachusettsAges 18 years+ - NCT06890312Recruiting
Timing of blood thinner during heart catheterization
This study looks at the best time to give a standard blood thinner (heparin) during a heart procedure called angioplasty, which opens blocked heart arteries through a wrist artery. It may help reduce bleeding or clotting risks.
Strasbourg, Bas-RhinAges 18 years+ - NCT06886789Recruiting
Staying healthy after cardiac rehab
This study tests a program to help people who have finished cardiac rehab keep up their healthy habits. The program uses a smartphone app and check-in calls to support your progress.
Providence, Rhode IslandAges 18 years+ - NCT06887062RecruitingPhase 2
Testing dapagliflozin and bosentan for large vessel vasculitis
This trial tests two drugs, dapagliflozin and bosentan, to see if they help people with large vessel vasculitis who have been in remission for at least 6 months. The goal is to prevent flares and improve blood vessel health.
EdinburghAges 18 years+ - NCT06887101Recruiting
Stress and heart risks in peripheral artery disease
This study looks at how stress affects heart and blood vessel events in people with peripheral artery disease (PAD). It aims to help understand if stress plays a role in worsening PAD or causing related problems like heart attacks or strokes.
EssenAges 18 years+ - NCT06887114Recruiting
Lumbar back therapy for better walking and balance after stroke
This study tests a gentle, hands-on therapy called Mulligan Mobilization for the lower back. It may help improve walking, balance, and body awareness after a stroke.
AnkaraAges 30–65 - NCT06887231Recruiting
Virtual reality and brain stimulation for early stroke recovery
This study tests whether using virtual reality (a special headset with games) combined with mild electrical stimulation on the scalp can help people recover arm movement early after a stroke. It is for people who already have some movement in their affected arm and are in the subacute phase (1 week to 3 months after stroke).
Vienna, State of ViennaAges 18–80 - NCT06887387Recruiting
Wearable devices to monitor Long QT Syndrome
This study tests whether wearable devices can help monitor Long QT Syndrome, a heart condition. It aims to make tracking your heart easier and more convenient than clinic visits.
LondonAges 18 years+ - NCT06887413Recruiting
Clot removal for heart attack on the front of the heart
This trial tests whether using a special device to remove blood clots during emergency heart artery opening can improve outcomes for people having a major heart attack on the front of the heart. It is for patients who get to the hospital quickly after symptoms start.
Milan, MilaniAges 18–75 - NCT06887894Recruiting
Studying unstable plaque in the carotid artery
This trial looks at specific markers in the blood to better understand unstable plaque in the carotid artery. It may help doctors identify which patients are at higher risk for stroke.
Roma, RMAges 18 years+ - NCT06888024Recruiting
Measuring pelvic vein blood flow with MRI
This study uses MRI scans to measure blood flow in the pelvic veins. It’s for people who either have no vein problems, or have symptoms of a compressed left iliac vein, or already have a stent in that vein. The goal is to learn more about how blood flows in these conditions.
Worcester, MassachusettsAges 18–89 - NCT06888466Recruiting
Personalized heart health risk check
This trial looks at how learning about your genetic risk for heart disease might help prevent it. You will get a personalized report and guidance.
Roma, ItaliaAges 40 years+ - NCT06889662Recruiting
Genetic testing study for arrhythmic myocarditis
This study tests whether looking at your genes can help doctors understand and treat arrhythmic myocarditis (a type of heart muscle inflammation that can cause irregular heartbeats). It may help find better treatments for people with this condition.
Milan, Italy/MilanAges 10–80 - NCT06890013Recruiting
Heart artery function test after a heart attack
This study looks at how well the blood vessels in your arm relax after a heart attack. It uses an ultrasound test on your arm, a heart ultrasound, and some blood tests to see if this can help predict future heart problems.
ThessalonikiAges 18–85 - NCT06890169Recruiting
One-stop telehealth program for weight and diabetes
This trial tests a telehealth program that helps people lose weight and manage type 2 diabetes and fatty liver disease at the same time. It's a one-stop remote clinic that combines medical advice, nutrition, and lifestyle support.
SingaporeAges 21–70 - NCT06890702Recruiting
Testing new blood markers for brain blood flow problems
This study is testing whether certain substances in your blood can help doctors better detect and understand problems with blood flow in the brain. Researchers hope these new 'biomarkers' could lead to faster and more accurate diagnosis of conditions like stroke and mini-stroke.
Wuhan, HubeiAges 18–90 - NCT06891131Recruiting
Blood transfusion bundle for severe bleeding after injury
This trial tests a standard set of emergency blood transfusions for people with life-threatening bleeding from a serious injury. It aims to improve survival by giving blood products quickly before reaching the hospital.
GrazAges 18 years+ - NCT06891456Recruiting
Pulsed field ablation for ventricular tachycardia after heart attack
This trial tests a new type of energy (pulsed field ablation) to treat a fast heart rhythm called ventricular tachycardia that happens after a heart attack. The goal is to stop the dangerous rhythm without damaging nearby healthy tissue.
Cleveland, OhioAges 18 years+ - NCT06891599Recruiting
Blood test for clotting in sepsis and trauma ICU patients
This study is testing a special blood test called ROTEM to see how well it can predict bleeding problems in ICU patients with sepsis or severe trauma. It may help doctors give the right treatment faster.
StockholmAges 18 years+ - NCT06891690Recruiting
Brain stimulation for neurological and gynecological conditions
This trial tests whether a gentle brain stimulation technique called tDCS can help people with neurological problems (like weakness in arms or legs) or certain gynecological conditions (like endometriosis or painful periods) who are not using other treatments. It aims to see if tDCS can improve symptoms.
PoznanAges 18–90 - NCT06892353Recruiting
AI eye screening for diabetic retinopathy
This trial tests a new AI-powered, do-it-yourself screening system for diabetic retinopathy. It may help find early signs of eye disease in people who haven't had an eye exam in the past year.
Hong KongAges 18 years+ - NCT06892886Recruiting
Virtual reality for arm rehab after stroke
This trial tests if immersive virtual reality can help people recover arm movement after a recent stroke. If you had a first stroke within the last month and still have arm weakness, this might be an option.
FerraraAges 18–80 - NCT06893588Recruiting
NeVa VS for cerebral vasospasm after brain bleed
This trial is for people who have had a brain bleed from a burst aneurysm and then developed tightening of the brain's blood vessels (vasospasm). It studies how well the NeVa VS device works to open up those narrowed vessels.
Burbank, CaliforniaAges 22 years+ - NCT06893926Recruiting
Cord blood S100B protein in growth-restricted newborns
This study measures a protein called S100B in umbilical cord blood to learn more about brain development in newborns with fetal growth restriction (FGR), a condition where a baby is smaller than expected. Understanding this protein could help doctors identify babies who may need extra support after birth.
WarsawAges 18 years+
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 10,049 recruiting cardiology studies from the U.S. registry right now, out of 15,440 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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- Mental health
- Digestive system
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- 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.