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
- NCT07218276Recruiting
Passive robot study for stroke recovery
This study tests a passive robot (a device that moves without force) to help stroke survivors regain arm movement. It aims to see if this approach is safe and helpful for people with arm weakness after a stroke.
Ann Arbor, MichiganAges 18–75 - NCT07219108Recruiting
Vagus nerve stimulation for recovery in the NeuroICU
This trial tests whether a gentle electrical pulse on the ear can help patients recover from severe brain or spinal cord conditions in the NeuroICU. It may improve healing by activating the vagus nerve.
St Louis, MissouriAges 18 years+ - NCT07219758Recruiting
Recana device study for leg vein blockages
This trial tests a new device called the Recana Thrombectomy Catheter to clear blockages in the large veins of the legs or pelvis. It might help people with chronic leg swelling, pain, or open sores caused by poor blood flow out of the leg.
LondonAges 18 years+ - NCT07220525Recruiting
Sleep and heart rhythm study for people with sleep apnea device
This study looks at how turning off your sleep apnea device for short periods affects your heart rhythm, especially if you have a condition like atrial fibrillation. It may help understand the link between sleep and heart health.
San Francisco, CaliforniaAges 21 years+ - NCT07221214RecruitingPhase 2
Testing a diabetes drug for drinking and heart health in HIV
This trial tests if a once-weekly diabetes medication (semaglutide) can help people with HIV reduce heavy drinking and improve heart health. It's for people who drink alcohol and have a higher body weight.
Nashville, TennesseeAges 18–89 - NCT07221279Recruiting
Walking study for weight and heart health in adults
This study tests if a specific number of daily steps can help overweight or obese adults improve body composition and reduce heart disease risk. It's for people who are otherwise healthy but may have high blood pressure or joint pain managed by medication.
Kennesaw, GeorgiaAges 20 years+ - NCT07221682RecruitingPhase 2/Phase 3
Comparing two nerve block methods for lower leg surgery
This study compares two ways of giving a nerve block (fascia iliaca block) to help with positioning for spinal anesthesia and pain relief after lower leg surgery. The goal is to see which method works better for making patients more comfortable.
Sāhīwāl, Punjab ProvinceAges 30–60 - NCT07222293Recruiting
Testing an AI tool to screen for diabetic eye disease
This study uses an AI program called DRISTi to screen for diabetic eye disease by taking pictures of the back of your eye. It's designed for adults with diabetes who haven't had major eye treatments or vision loss.
Oxford, North CarolinaAges 21 years+ - NCT07222683Recruiting
How kidney transplant affects heart blood vessel health
This study looks at how receiving a kidney transplant changes the health of small blood vessels in the heart. It may help people with advanced kidney disease understand the benefits of transplant on their heart health.
Boston, MassachusettsAges 18 years+ - NCT07223242RecruitingPhase 2/Phase 3
Tailored exercise training for heart failure with preserved pumping strength
This trial tests a personalized exercise program to help people with a type of heart failure called HFpEF. You may qualify if your heart still pumps well but you have trouble being active, and you are willing to use a phone app and exercise regularly.
Dallas, TexasAges 18 years+ - NCT07223268Recruiting
Support program for diabetic foot problems
This study tests a program that provides extra help and resources to people with diabetes who have a foot ulcer or a toe amputation. The goal is to see if this support helps them manage their condition and avoid future problems.
Atlanta, GeorgiaAges 18 years+ - NCT07223437Recruiting
Restricted exercise for peripheral artery disease study
This study tests a new type of exercise that uses a blood-flow restriction cuff to see if it helps people with leg pain from blocked arteries. If you have stable claudication (leg pain when walking) and have been referred to cardiac rehab, you may qualify.
Knoxville, TennesseeAges 18 years+ - NCT07223502RecruitingPhase 3
Comparing two treatments for high blood pressure and kidney disease
This trial tests if a new treatment combination (finerenone plus a water pill) works better than a standard fixed-dose combination for people with both high blood pressure and chronic kidney disease. It aims to find which option provides more clinical benefit.
Vienna, VirginiaAges 18 years+ - NCT07224256Recruiting
Brain implant trial to help with communication after injury or disease
This trial tests a brain-computer interface (BCI) that is implanted by a robot. It is designed to help people who have lost the ability to speak clearly or use their hands well, due to conditions like ALS, stroke, or spinal cord injury.
Dallas, TexasAges 22–75 - NCT07224178Recruiting
Heart strain and stroke of unknown cause
This study looks at how well the left side of the heart pumps (called strain) in people who had a stroke without a known cause. It aims to see if this heart measurement can help predict future strokes or heart rhythm problems like atrial fibrillation.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT07224243Recruiting
How oxygen during surgery affects recovery
This study looks at how different oxygen levels during surgery affect recovery. It includes adults having surgery with a breathing tube, but excludes people having open-heart surgery, certain lung procedures, or who have had bleomycin chemotherapy.
Ann Arbor, MichiganAges 18 years+ - NCT07224230Recruiting
Custom aortic graft study for high-risk aneurysm patients
This study tests a doctor-modified aortic graft for people with complex aortic aneurysms who cannot use standard approved devices. The goal is to see if this custom approach can repair the aneurysm safely in high-risk patients.
Houston, TexasAges 18 years+ - NCT07224685Recruiting
Mayo heart & voice health study with phone and watch
This study uses your iPhone and Apple Watch to collect heart and voice data to learn more about cardiovascular health. It may help improve how doctors monitor heart conditions.
Rochester, MinnesotaAges 18 years+ - NCT07224906Recruiting
Observing patients having a right heart catheterization
This study observes people who are already scheduled for a right heart catheterization, a procedure that checks the pressure in your heart. It helps doctors learn more about heart conditions without adding any extra treatments or procedures.
Boulder, ColoradoAges 18 years+ - NCT07225101RecruitingPhase 4
Testing STRATAFIX stitches for brain and spine surgery
This trial tests a special type of stitch (called STRATAFIX) for closing wounds after brain or spine surgery. It may help the wound heal better and reduce complications.
Lansing, MichiganAges 18 years+ - NCT07225543RecruitingPhase 2
Study of 2-HOBA for women with lupus
This trial tests whether a natural compound called 2-HOBA can help women with lupus who also have mildly high blood pressure. It aims to improve blood vessel health and reduce inflammation.
Nashville, TennesseeAges 18 years+ - NCT07225738Recruiting
Multiple Myeloma treatment and cannabis use study
This study follows people with newly diagnosed multiple myeloma to see how their cancer treatments and use of medications, including cannabis, affect their health. It will help doctors learn more about what works best.
Goodyear, ArizonaAges 18 years+ - NCT07225842RecruitingPhase 4
Bridging with Cangrelor: A study on pre-procedure blood thinner use
This study looks at how well a certain blood thinner (cangrelor) works when used as a 'bridge' before surgery or another procedure. It is for people who already need to be on this medicine for a short time.
Jacksonville, FloridaAges 18 years+ - NCT07226193Recruiting
Can a pulse test detect PAD?
This study is testing a simple pulse check to see if it can detect peripheral artery disease (PAD), a condition that narrows leg arteries. People with or without PAD can join to help see how well the test works.
Omaha, NebraskaAges 19 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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- 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.