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
- NCT06713252Recruiting
Art therapy for stroke recovery
This study tests whether art therapy can help improve non-motor symptoms (like mood and thinking) during the early recovery phase after a stroke. Participants will attend art sessions while continuing their regular rehab.
Jiamusi, HeilongjiangAges 40–75 - NCT06714409Recruiting
Ultrasound-guided fluid removal in hospitalized heart failure
This study tests whether using ultrasound-guided treatment to reduce fluid buildup in the body can help people hospitalized for worsening heart failure feel better faster. It's for adults admitted with heart failure and high BNP levels.
OsloAges 18 years+ - NCT06211712Recruiting
Drug plus clot removal for large vessel stroke
This study tests whether adding a drug called human urinary kallidinogenase to standard clot-removal therapy helps people recover better after a large-vessel stroke. If you qualify, you would receive the drug or a placebo by IV along with the procedure, and doctors will monitor your recovery.
ShanghaiAges 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 - NCT06495073Recruiting
Finding meaningful change after stroke or TIA in older adults
This study looks at how well two health questionnaires work for people 70 and older who have had a stroke or TIA. The goal is to find the smallest change that matters to patients, so doctors can better track recovery.
Amsterdam, North HollandAges 70–120 - NCT06556485Recruiting
Early ablation for heart failure patients with heart pumps or on transplant list
This trial tests whether doing a catheter ablation early (before dangerous heart rhythms start) can help people with severe heart failure who need a heart transplant or already have an ICD. The goal is to see if this can improve outcomes.
Bad OeynhausenAges 18–99 - NCT06605209Recruiting
A covered stent study for iliac artery blockage
This trial tests a balloon-expandable covered stent to treat blockages in the iliac artery (a major blood vessel in your pelvis). It may be an option for people with leg pain from poor blood flow.
Beijing, Beijing MunicipalityAges 18–80 - NCT06715748RecruitingPhase 4
Ketone drink study for cyclists after hard exercise
This study tests if taking a ketone drink before intense cycling helps your heart recover faster afterwards. It's for healthy recreational cyclists who are very fit for their age and sex.
Hasselt, LimburgAges 18–50 - NCT07601763Recruiting
Pulsed Field Ablation for Atrial Fibrillation Treatment
This trial tests a newer ablation technique called pulsed field ablation to treat atrial fibrillation, a heart rhythm disorder. The goal is to see if this method works well and is safe for patients who need treatment.
Beijing, Beijing MunicipalityAges 18 years+ - NCT07596446Recruiting
Emergency treatment study for cardiac arrest patients
This study tests emergency treatments for people who have had a cardiac arrest (heart stops beating) outside the hospital. It looks at two groups: people whose hearts stop despite CPR efforts, and people whose hearts have restarted. The goal is to see if these treatments can help patients survive and recover better.
PragueAges 18–70 - NCT07603336Recruiting
Heart Monitoring Methods During Pancreas Surgery
This study compares two ways of monitoring your heart function during Whipple surgery (pancreas removal). Doctors will use different monitoring approaches to guide fluid and medication during your operation to help you recover better.
Çankaya, AnkaraAges 18–80 - NCT07601867Recruiting
Dapagliflozin to improve heart function after bypass surgery
This trial tests whether a diabetes medication called dapagliflozin can help improve how well the right side of your heart works after off-pump coronary artery bypass grafting surgery (a way to reroute blood around blocked heart arteries). The goal is to see if this drug reduces strain on your heart during recovery.
Pyatigorsk, Stavropol KrayAges 18 years+ - NCT07596706Recruiting
Comparing two stent techniques for left main branch blockages
This trial compares two ways of placing a stent at the point where the main left artery splits into two branches. It is for people who have a blockage in the very beginning of one of those branches, and it uses advanced drug-eluting stents to see which method works better.
Istanbul, Please SelectAges 18–85 - NCT06694012Recruiting
Ohtori Study Part 2 heart health
This study looks at heart and metabolic health in the general population. It helps researchers understand how to prevent conditions like diabetes and heart disease.
Sakai, OsakaAges 20 years+ - NCT07601087RecruitingPhase 1
Safety Study of HRS-7156 in Healthy Adults
This is an early-stage safety study of an experimental drug called HRS-7156 in people with no serious health conditions. Researchers will monitor how your body tolerates the drug and how it moves through your system.
Shanghai, Shanghai MunicipalityAges 18–55 - NCT07599904Recruiting
Real-world study of Medtronic stroke treatment devices
This registry tracks how Medtronic's FDA-approved devices work in treating acute ischemic stroke (a type of stroke caused by a blood clot) in everyday clinical practice. Researchers collect information to understand device safety and effectiveness outside of formal clinical trials.
Flint, MichiganAges 18 years+ - NCT07595367RecruitingPhase 2
BBD-1 immune therapy for IgA vasculitis
This trial tests a new drug called BBD-1 that may help treat IgA vasculitis, a condition where your immune system attacks small blood vessels, causing a purple rash and organ damage. The study measures how well BBD-1 reduces symptoms and side effects.
Baltimore, MarylandAges Any age - NCT07601425RecruitingPhase 1/Phase 2
ATV-1601 Treatment for Hereditary Hemorrhagic Telangiectasia
This trial tests a new drug called ATV-1601 in people with HHT, a genetic condition that causes abnormal bleeding and blood vessel problems. The drug aims to reduce bleeding and anemia caused by HHT.
Phoenix, ArizonaAges 18 years+ - NCT07601269RecruitingEarly Phase 1
New Mitral Valve Implant for Heart Valve Disease
This early-stage trial tests a new device called the ReValve System that replaces a damaged mitral valve (the valve that controls blood flow in your heart). The study is for people with a weakened heart who have leaking mitral valves and are experiencing heart failure symptoms.
São Paulo, São PauloAges 18 years+ - NCT07595016Recruiting
Testing a Blood Pressure Device for Pregnant Women
This study tests whether a new Withings blood pressure monitor (BPM Pro 2) accurately measures blood pressure in pregnant women, including those with pregnancy-related high blood pressure (preeclampsia). Accurate home blood pressure monitoring could help keep you and your baby safer during pregnancy.
Yerevan, ArmeniaAges 18 years+ - NCT06715046Recruiting
Blood DNA test after stem cell transplant
This study checks if looking at DNA in your blood can help doctors see how well your stem cell transplant is working and catch any problems early. It is for people with blood cancers getting a transplant from a donor.
Milan, MilanAges 18 years+ - NCT06715449RecruitingPhase 2/Phase 3
Testing empagliflozin after a stroke with unknown cause
This trial tests if a diabetes drug called empagliflozin can help the heart's left atrium work better in people who have had a stroke with no known cause. You may join if you are getting a heart monitor device implanted to look for hidden irregular heartbeats.
Cambridge, CambridgeshireAges 18 years+ - NCT06714734Recruiting
Blood thinners in cancer patients with blood clots
This study looks at how well blood thinners (anticoagulants) work in people with cancer who have had a blood clot. It aims to compare the benefits and risks of different anticoagulant medicines.
BolognaAges 18 years+ - NCT07603076Recruiting
Vein Problems and Symptoms in Lipedema
This study looks at how vein function relates to lipedema (a condition causing painful fat buildup in legs). Researchers will use ultrasound to check your veins and ask about your symptoms to better understand how the two conditions connect.
Istanbul, UskudarAges 18–65
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
- 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.