Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 10,001 recruiting studies in this area right now.
By phase
- Not applicable7,980
- Phase 2482
- Phase 4481
- Phase 3447
- Phase 1360
- Phase 1/Phase 2163
- Phase 2/Phase 388
Top conditions
- Stroke846
- Heart Failure564
- Hypertension400
- Cardiovascular Diseases389
- Coronary Artery Disease370
- Multiple Myeloma332
- Atrial Fibrillation268
- Ischemic Stroke200
- Atrial Fibrillation (AF)142
- Acute Ischemic Stroke139
- Pulmonary Hypertension101
- Myocardial Infarction99
- Congenital Heart Disease86
- Stroke, Ischemic85
- Peripheral Arterial Disease83
- Acute Coronary Syndrome82
- Obesity80
- Aortic Valve Stenosis79
Leading sponsors
- Mayo Clinic95
- 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
- Minnesota121
- Illinois120
- Maryland120
- Texas118
Recruiting studies9,998 total
- NCT06542822Recruiting
IV iron for non-ischemic heart failure with low iron
This study tests whether intravenous iron can improve outcomes for people with non-ischemic heart failure and low ejection fraction who are also iron deficient. If you fit the criteria, you may receive iron infusions to see if it helps your heart function and symptoms.
Southampton, HampshireAges 18 years+ - NCT06543082RecruitingPhase 4
Study on heart attack patients with antiplatelet and colchicine therapy
This trial is for people who had a heart attack and received a specific type of stent (Orsiro). It tests a combination of a single antiplatelet drug and colchicine to see if it helps prevent future heart problems. Colchicine is a medicine that reduces inflammation and might lower the risk of another heart attack.
Seongnam-si, Gyeonggi-doAges 20–90 - NCT06543173Recruiting
Preventive heart ablation with defibrillator in high-risk patients
This study tests if doing a special heart procedure (catheter ablation) at the same time as implanting a defibrillator (ICD) can prevent dangerous heart rhythms better than the ICD alone. It is for people with a very weak heart pump due to blocked arteries who are getting a first-time ICD.
Copenhagen, Region HAges 18 years+ - NCT06543758RecruitingPhase 4
Gait rehab with a wearable robot at home
This trial tests whether using a wearable robotic device at home can improve walking ability in people who have had a stroke. If you have trouble walking due to a stroke, this study may help you regain strength and mobility.
Yongin-si, Gyeonggi-doAges 19–79 - NCT06544135Recruiting
Thermal camera study for blood flow in PAD with tissue loss
This study uses a special camera that detects heat to see blood flow in your leg before and after a procedure to open blocked arteries.
Beachwood, OhioAges 18–99 - NCT06544265RecruitingPhase 1
SynKIR-310 for advanced B-cell lymphoma
This trial tests a new treatment called SynKIR-310 for people with B-cell non-Hodgkin lymphoma whose cancer has come back or not responded to at least 2 prior treatments. It may be an option if you've already had CAR T-cell therapy or cannot have it.
Denver, ColoradoAges 18 years+ - NCT06544473RecruitingPhase 4
Estrogen pill vs. patch for Turner syndrome
This trial compares oral and transdermal (patch) estrogen to find the right dose for women with Turner syndrome. It aims to see which method works best for hormone replacement.
Aarhus, Aarhus NAges 18–50 - NCT06546137Recruiting
Registry for inherited heart conditions in Brazil
This study is building a national registry in Brazil to learn more about inherited heart conditions and improve care. If you have a family-related heart disease, you may be able to join and help advance cardiovascular healthcare.
Rio Branco, AcreAges Any age - NCT06545370Recruiting
Nurse Education for Heart Failure Patients and Caregivers
This trial tests whether a nurse-led education program can help people with chronic heart failure and their caregivers. You and your caregiver would learn about managing heart failure at home.
Heraklion, CreteAges 18 years+ - NCT06545448Recruiting
Study of planned angioplasty in stable heart disease
This study looks at whether planned angioplasties (a procedure to open blocked heart arteries) are done appropriately for people with long-term stable heart disease. It aims to help doctors make better decisions for patients like you.
São Paulo, São PauloAges 18 years+ - NCT06545591Recruiting
Predicting stroke treatment success with a blood test
This trial studies a blood marker called sTREM to see if it can help predict outcomes after a mechanical clot removal procedure (endovascular thrombectomy) for large-vessel stroke. If you have had a stroke due to a large artery blockage within the last 24 hours and plan to have this procedure, you may be able to join.
Xuzhou, JiangsuAges 18 years+ - NCT06546761Recruiting
Heart imaging after carotid artery treatment
This study tests whether imaging the heart's arteries with a special CT scan can help find hidden blockages in people who just had treatment for a blocked carotid artery. It aims to prevent future heart problems.
RigaAges 50 years+ - NCT06547684Recruiting
Shock wave therapy for foot stiffness after stroke
This trial tests whether shock wave therapy can help relax the tight calf muscles that cause foot drop after a stroke. It may help you walk better and reduce foot stiffness.
Vila-real, CastellonAges 18 years+ - NCT06548477Recruiting
Albumin for recovery after brain aneurysm bleed
This study tests whether giving the protein albumin can improve recovery after a brain aneurysm has burst. It is for people who have had their aneurysm treated quickly after symptoms started.
DohaAges 18–80 - NCT06548269Recruiting
Assessing stroke recovery in patients with atrial fibrillation
This study watches how people recover from a recent stroke caused by a heart rhythm problem called atrial fibrillation (or AFib). It aims to find better ways to predict recovery and guide future care.
Jinan, ShandongAges 18 years+ - NCT06548607RecruitingEarly Phase 1
CAR-T therapy for autoimmune diseases
This early-phase trial tests a new CAR-T cell therapy that targets CD19 or both CD19 and BCMA to treat several autoimmune diseases like lupus, scleroderma, and vasculitis. It aims to calm the overactive immune system with a single infusion of your own engineered cells.
Bengbu, AnhuiAges 18–70 - NCT06548737Recruiting
Outcomes after a brain bleed
This study looks at what happens to people after a bleed in the brain. It will help doctors understand how people recover, so they can improve care for future patients.
Hangzhou, ZhejiangAges 18–100 - NCT06548971RecruitingPhase 3
Early antiplatelet after clot-busting for stroke (TREND-IVT)
This trial tests whether giving an antiplatelet medicine (like aspirin) early—within 3 hours of a clot-busting drug—can help prevent another stroke without causing bleeding. It is for people who still have moderate to severe stroke symptoms after the clot-buster and do not have a large artery blockage.
Bengbu, AnhuiAges 18 years+ - NCT06549023Recruiting
One session vs multiple sessions of laser for diabetic eye disease
This study compares having laser treatment for diabetic eye disease in one session versus spreading it over multiple sessions. The goal is to find out if one approach is better for your eyes and easier for you.
MölndalAges 18 years+ - NCT06549348Recruiting
Aortic repair study using less radiation
This study tests a new way to guide a complex aortic surgery (fenestrated endovascular repair) using less or no radiation. It may help people with aneurysms who need repair involving the arteries that supply the liver, gut and kidneys.
Birmingham, AlabamaAges 18 years+ - NCT06549621Recruiting
Heart effects of carbon monoxide in hyperbaric oxygen patients
This trial looks at how carbon monoxide poisoning affects the heart in patients who received hyperbaric oxygen therapy. It aims to understand the heart risks after treatment.
BrestAges 18–100 - NCT06550427Recruiting
Lymphoma treatment response monitoring with genetic testing
This trial is testing a new way to monitor how well your lymphoma treatment is working. It uses a blood test to look for genetic changes in cancer cells, which may help doctors make better treatment decisions.
TaipeiAges 18 years+ - NCT06550596Recruiting
Amnion membrane for diabetic foot ulcers
This trial tests a wound covering made from donated amniotic tissue (dehydrated human amnion membrane) placed on a diabetic foot ulcer that isn't healing. It aims to see if adding this membrane to standard wound care helps the ulcer close faster.
Thousand Oaks, CaliforniaAges 18 years+ - NCT06550986Recruiting
Polymer device to close false lumen in type B dissection
This trial tests a new polymer device to close the false lumen (an extra channel) in the aorta for people with type B aortic dissection. It may prevent the aorta from growing and reduce the risk of complications.
AucklandAges 18 years+
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 10,001 recruiting cardiology studies from the U.S. registry right now, out of 15,328 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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- Genetic & congenital
- Bones, joints & muscles
- Pain
- Injuries & trauma
- Mouth & dental
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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.