Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,989 recruiting studies in this area right now.
By phase
- Not applicable7,969
- Phase 2481
- Phase 4481
- Phase 3447
- Phase 1361
- Phase 1/Phase 2163
- Phase 2/Phase 387
Top conditions
- Stroke845
- Heart Failure564
- 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
- California466
- Alabama197
- Massachusetts182
- Arizona173
- New York162
- Florida144
- Maryland120
- Minnesota120
- Illinois119
- Texas118
Recruiting studies9,986 total
- NCT06299436Recruiting
Heart muscle function testing in right heart failure
This trial studies how the right side of the heart works in people with heart failure. It uses special monitoring to understand muscle function and may help doctors find better ways to treat right heart failure.
Baltimore, MarylandAges 18–90 - NCT06299956Recruiting
Supervised exercise for leg pain due to blocked arteries
This trial tests whether a supervised exercise program can help people with leg pain caused by blocked arteries. It may improve your walking ability and reduce pain when you walk.
SlagelseAges 18 years+ - NCT06300450Recruiting
Alert test for cholesterol meds in PAD patients
This study tests whether a special alert in your electronic health record can help doctors start the right cholesterol-lowering medication for people with peripheral artery disease (PAD) who are not already on one. The goal is to see if the alert helps get treatment started more often.
Boston, MassachusettsAges 18 years+ - NCT06300762Recruiting
Wound dressing for leg ulcers
This trial tests a new wound dressing for leg ulcers. It aims to see if the dressing helps manage fluid and heal the ulcer better than standard care. You may be a candidate if you have a leg ulcer that needs compression therapy.
Melle, NiedersachstenAges 18 years+ - NCT06301412RecruitingPhase 3
Cooling plus clot removal for acute stroke
This trial tests whether cooling the body down (hypothermia) combined with a clot removal procedure (thrombectomy) helps people recover better from a large-artery stroke. You may be eligible if you have a moderate-to-severe stroke and can be treated within 24 hours of when you were last seen well.
Freiburg im BreisgauAges 18 years+ - NCT06301776Recruiting
Shorter vs. longer blood thinners after bridge stent for neck artery
This trial compares two different lengths of blood-thinner therapy after getting a Bridge stent for a narrowed artery in the back of the neck. It aims to find the best way to prevent future strokes with fewer side effects.
Shenyang, LiaoningAges 18–80 - NCT06302127Recruiting
Heart and diabetes care study for county residents
This trial tests a team-based care model for people with high blood pressure or diabetes living in county areas. It aims to improve long-term health by working with local family doctors.
Sanming, FujianAges 40–70 - NCT06302777Recruiting
Main image registry for heart artery imaging
This study is tracking patients who receive a special type of imaging (like an ultrasound) on their heart arteries before a procedure. It aims to learn more about how this imaging helps guide care.
Frankfurt am Main, HesseAges 18 years+ - NCT06302634Recruiting
Heart rehab program for cancer patients at risk
This trial tests a rehabilitation program designed to help people at high risk of heart problems from cancer treatment. You would do exercises and have check-ups, either at the hospital or at home.
Santiago de Compostela, A CoruñaAges 18–70 - NCT06302946Recruiting
Brain therapy with electrical stimulation and mindfulness for stroke patients
This study tests if combining neuromuscular electrical stimulation (gentle muscle zaps) with mindfulness exercises helps stroke patients recover better. It aims to improve movement and well-being.
Cairo, DokkiAges 50–65 - NCT06303960RecruitingEarly Phase 1
Brain stimulation for chronic stroke arm recovery
This early-phase trial tests whether brain stimulation (deep brain stimulation in the cerebellum or vagus nerve stimulation) can help improve arm and hand movement in people who had a stroke 1 to 3 years ago.
Jinan, ShandongAges 30–75 - NCT06303869Recruiting
Deep brain stimulation for speech after stroke
This study tests if deep brain stimulation (a small device implanted in the brain) can improve speech and arm movement after a stroke that affected the deeper parts of the brain. It is designed for people who have trouble speaking clearly (dysarthria) from their stroke.
Pittsburgh, PennsylvaniaAges 18–75 - NCT06304714Recruiting
Effects of Bothrops snake venom on bleeding risk
This study looks at how Bothrops snake venom affects a blood protein called von Willebrand factor, which helps with clotting. If you have been bitten by a Bothrops snake and have moderate to severe symptoms, you may be able to join to help doctors understand how to treat snakebites better.
Fort-de-France, MartiniqueAges 18 years+ - NCT06304857RecruitingPhase 3
Protecting the heart with dapagliflozin during breast cancer treatment
This trial tests if the diabetes drug dapagliflozin can protect the heart in people with breast cancer receiving a type of chemotherapy called anthracyclines. You may be able to join if you are between 18 and 80, have stage I-III breast cancer, and are about to start anthracycline treatment within the next 60 days.
Wroclaw, Lower Silesian VoivodeshipAges 18–80 - NCT06305611Recruiting
Studying Kawasaki disease in Europe and North India
This study looks at children with Kawasaki disease, a condition that causes inflammation in blood vessels. The goal is to learn more about how it affects kids in Europe and North India.
Rio de JaneiroAges 1–17 - NCT06305416RecruitingPhase 3
Ranibizumab for diabetic macular edema
This trial tests an injection called Ranibizumab (10 mg/ml) to treat diabetic macular edema, a condition where fluid builds up in the center of the retina and causes blurry vision. The goal is to see if the drug is safe and effective at improving vision.
DhakaAges 18 years+ - NCT06306625Recruiting
Remote conditioning after out-of-hospital cardiac arrest
This trial tests a treatment that uses a blood pressure cuff on your arms to try to protect your brain and organs after your heart stopped outside the hospital. You will be in the intensive care unit, and the study will check if this simple 'remote conditioning' can improve recovery.
BronAges 18–80 - NCT06306963Recruiting
Stomach blood vessel condition and digestion symptoms study
This study looks at people with a stomach condition called gastric antral vascular ectasia (GAVE) to understand how it affects digestion and causes symptoms. Researchers want to learn if stomach muscle function problems are common in this condition.
Rochester, MinnesotaAges 19 years+ - NCT06307262Recruiting
European registry for tricuspid valve repair
This trial is a registry that collects information on patients who have had a minimally invasive procedure to fix a leaky tricuspid valve. By joining, you help doctors learn more about how well these devices work over time.
Munich, BavariaAges 18 years+ - NCT06307574Recruiting
Smartphone study to help older adults manage blood pressure medication
This study tests a digital tool called bpMedManage to help adults aged 60 and older remember and manage their blood pressure medications. It's for people who have some memory or thinking challenges and use a smartphone.
Tucson, ArizonaAges 60 years+ - NCT06307652RecruitingPhase 3
Testing a new heart failure and kidney treatment combo
This study tests a new combination of two medicines (balcinrenone and dapagliflozin) for people with heart failure and reduced kidney function. The goal is to see if this combination helps improve heart and kidney health better than current treatments.
Alexander City, AlabamaAges 18–130 - NCT06308055Recruiting
Impella heart pump study in ICU
This study is for people in the intensive care unit who are using a heart pump called Impella. It will collect information about how well the heart pumps blood during treatment to help doctors learn more.
Aachen, North Rhine-WestphaliaAges 18 years+ - NCT06308094Recruiting
CT scan to measure heart health before AF ablation
This trial uses a special CT scan to measure how much extra fluid is in your heart muscle. It aims to help doctors better understand and treat your atrial fibrillation before you have a procedure called ablation.
Baltimore, MarylandAges 21 years+ - NCT06308562Recruiting
Fuzzy sock after leg amputation to help healing
This trial tests a fuzzy compression sock worn on the leg after amputation below the knee (transtibial amputation). The goal is to see if it helps the wound heal better in people with peripheral artery disease.
Rochester, MinnesotaAges 18 years+
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,989 recruiting cardiology studies from the U.S. registry right now, out of 15,300 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.