Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,982 recruiting studies in this area right now.
By phase
- Not applicable7,962
- Phase 2481
- Phase 4481
- Phase 3447
- Phase 1361
- Phase 1/Phase 2163
- Phase 2/Phase 387
Top conditions
- Stroke844
- Heart Failure566
- Hypertension400
- Cardiovascular Diseases389
- Coronary Artery Disease370
- Multiple Myeloma332
- Atrial Fibrillation267
- Ischemic Stroke200
- Atrial Fibrillation (AF)141
- Acute Ischemic Stroke139
- Pulmonary Hypertension100
- Myocardial Infarction99
- Congenital Heart Disease86
- Stroke, Ischemic85
- Peripheral Arterial Disease83
- Acute Coronary Syndrome82
- Obesity80
- Aortic Valve Stenosis79
Leading sponsors
- Mayo Clinic94
- Assistance Publique - Hôpitaux de Paris91
- National Taiwan University Hospital74
- China National Center for Cardiovascular Diseases59
- Beijing Tiantan Hospital52
- Riphah International University51
- Second Affiliated Hospital, School of Medicine, Zhejiang University51
- Massachusetts General Hospital50
- Insel Gruppe AG, University Hospital Bern49
- Johns Hopkins University47
Where studies are running
- California465
- Alabama197
- Massachusetts182
- Arizona173
- New York162
- Florida144
- Maryland120
- Minnesota120
- Illinois118
- Texas118
Recruiting studies9,979 total
- NCT07287423Recruiting
A study of a new pacemaker system for heart rhythm problems
This trial tests a new pacemaker system for people who need a pacemaker for a slow or irregular heartbeat. It aims to see if the system is safe and works well.
PragueAges 18 years+ - NCT07704424Recruiting
Testing a heart pump for severe right heart failure
This trial is evaluating a new temporary heart pump called CorVad for people who develop severe right heart failure shortly after heart surgery, a heart attack, or a heart transplant. The pump is designed to help the right side of the heart pump blood when medications are not enough.
Hefei, AnhuiAges 18 years+ - NCT07704164RecruitingPhase 2
Colchicine to lower heart artery swelling in HIV
This trial tests if colchicine, a medicine for inflammation, can reduce swelling in the heart arteries of people with HIV. It may help lower the risk of heart problems in those already on a statin or similar medication.
BarcelonaAges 50 years+ - NCT04948749Recruiting
Stenting plus medication to prevent stroke from narrowed brain arteries
This trial tests whether placing a stent in a severely narrowed brain artery, along with aggressive medication, can prevent another stroke better than medication alone. It is for people who had a mild stroke within the last 30 days due to a 70-99% blockage in a major brain artery.
Beijing, Beijing MunicipalityAges 18–85 - NCT07705269Recruiting
High-rate fluid removal for fluid overload in dialysis patients
This trial tests whether a faster rate of fluid removal during dialysis can help hospitalized patients with end-stage kidney disease who have severe fluid buildup. It aims to reduce fluid congestion and improve outcomes.
Monterrey, Nuevo LeónAges 18 years+ - NCT07704671Recruiting
Analyzing past results for iliac branch device
This trial re-analyzes data from past studies of people who had a procedure using a special fabric tube (Gore Iliac Branch Endoprosthesis) to treat aneurysms in the main belly or hip arteries. It aims to gather all available information to better understand how well the device works.
Arnhem, GelderlandAges Any age - NCT02343042RecruitingPhase 1/Phase 2
Selinexor with standard therapies for multiple myeloma
This trial tests a new drug called selinexor (KPT-330) combined with various standard treatments for patients whose multiple myeloma has come back or stopped responding to therapy. The goal is to see if adding selinexor helps control the cancer better than current options, and to find the safest dose for different drug pairings.
Gilbert, ArizonaAges 18 years+ - NCT07543731Recruiting
Study of how patients stick with cholesterol-lowering injection medications
This study follows people who are starting one of three injectable cholesterol medications (inclisiran, evolocumab, or alirocumab) to see how well they stick with treatment over time. Understanding medication adherence helps doctors and patients find ways to improve long-term health outcomes.
BaselAges 18–99 - NCT07453888RecruitingPhase 3
Nose spray for sudden vision loss from optic nerve damage
This trial tests a nose spray medication (cenegermin) for people who recently lost vision due to a specific type of optic nerve damage (NAION). The goal is to see if it can help restore sight when started within two weeks of vision loss.
Los Angeles, CaliforniaAges 50–80 - NCT04234841Recruiting
Study of outcomes after aortic valve replacement
This study follows adults who are having aortic valve replacement (through surgery or a catheter) to see how often certain outcomes happen after the procedure. You may be asked for blood tests and scans at set times, and some people may also be offered a special CT scan.
Stevenage, HertforshireAges 18 years+ - NCT07194265Recruiting
A study of the DurAVR heart valve for aortic stenosis
This trial tests a new heart valve called DurAVR for people with severe aortic stenosis (a narrowed aortic valve) who need a valve replacement. It compares the new valve to standard valves to see if it is safe and works well.
Copenhagen, Capital Region of DenmarkAges 18 years+ - NCT07147413Recruiting
Blood pressure study using a mobile app
This trial tests if a digital health platform helps manage blood pressure at home. You'll check your blood pressure regularly using a phone app.
TaipeiAges 18–75 - NCT07011173RecruitingEarly Phase 1
Arm Muscle Coordination After Stroke
This early-phase study looks at how your muscles work together during arm movements after a stroke. It may help find better ways to improve arm and hand function.
Washington D.C., District of ColumbiaAges 20–80 - NCT05815745Recruiting
Compare two heart pacing strategies for slow heart rhythm
This study compares two types of heart pacing—one that mainly targets the heart’s lower chambers versus one that targets the right side—to see which leads to better outcomes for people needing a pacemaker. It may help improve treatment for certain slow heart rhythm problems that require pacing.
DublinAges 18 years+ - NCT07628829Recruiting
Video AI to Monitor Newborn Brain Health
This study uses artificial intelligence to watch and analyze videos of newborns in the hospital nursery or NICU to help doctors spot neurological problems early. The goal is to see if this video AI tool can safely and accurately help care for newborns during their hospital stay.
New York, New YorkAges Any age - NCT07649525RecruitingPhase 3
Personalized myeloma treatment based on response and fitness
This trial tests whether tailoring myeloma treatment based on how well you respond to initial therapy and your overall health status can improve outcomes. You'll receive standard first-line treatment (three drugs: daratumumab, lenalidomide, and dexamethasone) and then be assigned to a personalized pathway based on your response and fitness level.
BristolAges 18 years+ - NCT04216342RecruitingPhase 1
Testing a new breathing-drug ingredient in healthy adults
This early study (Phase 1) tests how safe and tolerable Fx-5A is, and how the body processes it, in healthy volunteers. It’s mainly looking to understand side effects and drug levels rather than treating a disease.
Bethesda, MarylandAges 18–99 - NCT07449325Recruiting
Heart sinus reducer for chest pain from small vessel disease
This trial tests a device placed in a heart vein (the coronary sinus) to improve blood flow and reduce chest pain in people with coronary microvascular dysfunction (small blood vessel disease). It aims to help those who still have symptoms despite taking heart medications.
New Haven, ConnecticutAges 18 years+ - NCT07657624Recruiting
Heart disease and memory problems risk study
This study looks at what factors might increase the risk of memory and thinking problems in people with coronary heart disease. It includes testing your memory and metabolism during a hospital stay.
Beijing, ChinaAges 18 years+ - NCT01370512Enrolling by invitationPhase 2
Droxidopa plus pyridostigmine for low blood pressure on standing
This Phase 2 study tests whether the medicines droxidopa and pyridostigmine can improve symptoms of orthostatic hypotension, which is low blood pressure when you stand up. It is designed for people whose low blood pressure is caused by problems with the nerves that control blood pressure.
Rochester, MinnesotaAges 18 years+ - NCT02960737Recruiting
Training for swallowing problems after stroke
This trial studies whether a specific oral training program can improve swallowing after a stroke. It’s mainly for people whose swallowing trouble has lasted for several weeks after their stroke.
UmeåAges 18 years+ - NCT02964364Recruiting
Registry for people with Takayasu arteritis
This is a patient registry that collects information about people with Takayasu arteritis. It helps researchers better understand the condition and how it affects blood flow in the arms and other major vessels.
Beijing, Beijing MunicipalityAges 5–80 - NCT02966665RecruitingPhase 1
Testing blood vessel function in people of different health conditions
This early study measures how well your blood vessels work using tests that may include MRI. It compares healthy people with people who have conditions like COPD, pulmonary arterial hypertension, heart failure, or high blood pressure, to better understand “vascular function” in health and disease.
Salt Lake City, UtahAges 18 years+ - NCT02967068Recruiting
Share your study tissue for future research
This study is a “tissue repository” that collects and stores leftover tissue from other approved VCRC studies. If you already took part in one of those studies, you may be able to let researchers use your tissue to help answer future questions.
Boston, MassachusettsAges Any age
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,982 recruiting cardiology studies from the U.S. registry right now, out of 15,268 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.