Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,613 recruiting studies in this area right now.
By phase
- Not applicable7,634
- Phase 2471
- Phase 4471
- Phase 3438
- Phase 1350
- Phase 1/Phase 2161
- Phase 2/Phase 388
Top conditions
- Stroke796
- Heart Failure535
- Hypertension389
- Cardiovascular Diseases374
- Coronary Artery Disease362
- Multiple Myeloma328
- Atrial Fibrillation259
- Ischemic Stroke190
- Atrial Fibrillation (AF)154
- Acute Ischemic Stroke139
- Pulmonary Hypertension104
- Myocardial Infarction96
- Congenital Heart Disease83
- Peripheral Arterial Disease80
- Stroke, Ischemic77
- Aortic Valve Stenosis76
- Obesity74
- Acute Coronary Syndrome73
Leading sponsors
- Mayo Clinic93
- Assistance Publique - Hôpitaux de Paris88
- National Taiwan University Hospital67
- China National Center for Cardiovascular Diseases60
- Second Affiliated Hospital, Zhejiang University, School of Medicine58
- Beijing Tiantan Hospital53
- Insel Gruppe AG, University Hospital Bern49
- Massachusetts General Hospital49
- Yonsei University48
- Johns Hopkins University45
Where studies are running
- California449
- Alabama195
- Arizona182
- Massachusetts174
- New York166
- Florida141
- Texas122
- Maryland118
- Minnesota118
- Illinois111
Recruiting studies9,613 total
- NCT05895838RecruitingPhase 3
Trial for medicines after out-of-hospital cardiac arrest
This Phase 3 trial studies treatments given after a person survives an out-of-hospital cardiac arrest to improve recovery and survival. It is for patients who stay unconscious for a short time after circulation returns, and who meet safety conditions.
Copenhagen, Capital Region of DenmarkAges 18 years+ - NCT05835349Recruiting
Study of Venus P-Valve for lung valve problems
This observational study follows people who need a pulmonary valve treatment, to see how the Venus P-Valve works in real-world care. It may help doctors understand which patients benefit and how outcomes change over time.
Pessac, New AquitaineAges 12–70 - NCT06693570RecruitingPhase 4
Fish skin graft for hard-to-heal leg ulcers
This trial tests whether applying a special fish skin graft, along with standard compression therapy, helps heal leg ulcers caused by poor vein function (venous leg ulcers) that have not healed with standard care alone. If you have a nonhealing venous leg ulcer, this study may offer a new treatment option.
Monroeville, PennsylvaniaAges 18 years+ - NCT06749106Recruiting
Using MRI to find bleeding in neck artery plaque
This study uses MRI scans that are already done as part of your stroke care to look for bleeding inside plaque in the neck arteries. The goal is to see if this bleeding can help predict stroke risk.
MunichAges 18 years+ - NCT06697925Recruiting
Venous leg ulcer closure durability study
This trial checks how long the closure of a venous leg ulcer lasts after healing. It is only for people who already took part in an earlier study (THOR trial) and had their ulcer fully close within 12 weeks.
Monroeville, PennsylvaniaAges 18 years+ - NCT06769269Recruiting
Hypertension registry study in Morocco
This study is creating a registry of people with high blood pressure in Morocco. It aims to understand different types of hypertension, related health problems, and how to personalize treatment.
Meknes, MoroccoAges 18 years+ - NCT06752720RecruitingPhase 2
Stem cell therapy for chronic stroke patients
This trial tests whether a patient's own stem cells can be safely injected into the brain to help recovery after a stroke. It is for people who had an ischemic stroke 6 months to 5 years ago and still have moderate to severe symptoms.
Sapporo, HokkaidoAges 20–70 - NCT07469163RecruitingPhase 1
Walking on a split-belt treadmill after stroke
This study tests different amounts of walking on a special treadmill that moves each leg at a different speed. It may help people recovering from a first stroke to improve their walking.
Calgary, AlbertaAges 18 years+ - NCT07464106Recruiting
Tricuspid valve treatment study for older adults
This study tests if a less invasive tricuspid valve repair or replacement can protect kidney function and improve physical activity in older adults with severe tricuspid valve leakage.
StuttgartAges 18 years+ - NCT07469397Recruiting
Study of bleeding after sheath removal in heart ICU
This study looks at what affects bleeding after removing a tube from an artery in the groin (femoral sheath) and how long people need to lie flat. It is for patients in a cardiac ICU who are having the sheath removed.
TaipeiAges 20 years+ - NCT07468461Recruiting
Camptodactyly-arthropathy-coxa vara-pericarditis (CACP) syndrome study
This study looks at children with CACP syndrome, a rare genetic condition, to learn more about how the condition affects the body over time.
BariAges Up to 18 years - NCT07469371Recruiting
CT-FFR guided heart treatment for severe aortic stenosis
This trial tests whether using a special CT scan (CT-FFR) to guide treatment improves outcomes for people with severe aortic stenosis (a narrowed heart valve). It may help doctors decide between valve replacement surgery or a less invasive procedure.
Kunming, YunnanAges 18 years+ - NCT07468032Recruiting
Brain stimulation study for stroke patients and healthy volunteers
This study uses brain stimulation (TMS) combined with EEG to understand how the brain controls movement speed after a stroke. It compares healthy volunteers to stroke survivors whose movement has slowed due to network problems, not direct damage to key brain regions.
Amiens, PicardieAges 18 years+ - NCT07463664Recruiting
Drug-coated balloons for blocked heart arteries
This trial tests whether a drug-coated balloon, used without a permanent stent, can safely open completely blocked heart arteries that have been blocked for at least 3 months. It may offer an option that avoids leaving a metal stent behind.
Beijing, Beijing MunicipalityAges 18–80 - NCT07465627Recruiting
Vessel recoil study for below-knee artery disease
This study tests a new device called the Spur to open blocked arteries below the knee in people with severe leg pain or minor wounds. It is specifically for people who also have diabetes or are on dialysis.
GrazAges 18 years+ - NCT07463014Recruiting
Peer support for stroke recovery
This trial tests whether getting support from a trained peer coach who has also had a stroke can help you recover better. It's designed for people who have had a stroke and recently left the hospital.
SingaporeAges 21–99 - NCT07466108Recruiting
IV paracetamol during emergency abdominal surgery
This trial tests whether giving paracetamol (Tylenol) through a vein during emergency belly surgery helps keep your blood pressure and heart rate stable. It may be an option for adults who are not critically unstable or have certain serious heart conditions.
Cairo, Cairo GovernorateAges 21–65 - NCT07470580Recruiting
Heat treatment vs surgery for adrenal gland tumor
This study compares two treatments for a certain type of adrenal gland tumor (Conn's adenoma) that causes high blood pressure. One is a heat-based procedure called radiofrequency ablation and the other is surgery to remove the tumor. The goal is to see which is better at controlling blood pressure.
ToulouseAges 18 years+ - NCT07466056Recruiting
Wearable heart monitor test for hospital patients
This trial tests a new, soft, wearable monitor that tracks your heart and body signs without wires or sticky pads. It aims to see if this device can help doctors diagnose and treat heart disease more comfortably.
Beijing, ChinaAges 18–85 - NCT07464821Recruiting
Lipid profile study in Noonan syndrome and related disorders
This study looks at cholesterol and fat levels in people with Noonan syndrome or related conditions. It aims to understand how these levels change with age, gender, and genetic cause.
AlessandriaAges 2–35 - NCT07464132RecruitingPhase 1/Phase 2
New PET scan for detecting certain diseases
This trial uses a special PET scan tracer to see if it can help find and monitor diseases linked to a protein called FAP. It is for both cancer patients needing a biopsy and healthy volunteers.
Beijing, Beijing MunicipalityAges 18–85 - NCT07464938Recruiting
Predicting brain recovery after cardiac arrest
This study is testing new tools and markers to better predict recovery after cardiac arrest when brain injury may occur. It involves adults who had a cardiac arrest outside the hospital and are being treated at Saint-Luc hospital.
BrusselsAges 18 years+ - NCT07464574Recruiting
Lowering cholesterol with non-statin drugs
This study tests if adding non-statin medications can help people with heart or blood vessel disease who still have high cholesterol despite taking statins. It aims to get their LDL (bad) cholesterol to a safer level.
Austin, TexasAges 18 years+ - NCT07468058Recruiting
Diabetic eye disease study in Da Nang
This study looks at how common diabetic retinopathy is and what factors increase the risk. It may help find better ways to prevent vision loss in people with diabetes.
Da NangAges 18 years+
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,613 recruiting cardiology studies from the U.S. registry right now, out of 14,690 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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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.