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
- NCT06388603Recruiting
Bioactive glass for diabetic foot bone infection in the forefoot
This trial tests a special glass material (bioactive glass S53P4) placed into the bone after surgery to treat a diabetic foot infection in the forefoot. It may help heal the infection better than standard care.
Monfalcone, GoriziaAges 18–100 - NCT06388629Recruiting
Testing the Rook tool for heart sac access
This trial is testing a new tool called Rook to help doctors get into the sac around your heart during a heart procedure. It is for people who already need this type of heart procedure and meet certain health requirements.
PragueAges 18 years+ - NCT06390189Recruiting
Inflammation resolution in heart and metabolic health
This study examines how your body naturally resolves inflammation, which is important for heart health and conditions like diabetes. It involves blood draws and tests to understand how inflammation works.
AarhusAges 18–75 - NCT06391073Recruiting
Testing a text program for high blood pressure after the ER
This study tests a text-message program to help people with high blood pressure manage their health after leaving the emergency department. If you qualify, you'll get tips and reminders on your phone to keep your blood pressure under control.
Flint, MichiganAges 18–99 - NCT06391086Recruiting
Focused ultrasound for arm recovery after recent stroke
This study tests if focused ultrasound (a noninvasive sound wave therapy) can help improve arm and hand movement after a recent stroke. It is for people whose stroke occurred within the last three months and who still have some arm weakness.
TaipeiAges 18 years+ - NCT06392932Recruiting
Esophageal temperature monitoring during heart ablation
This study tests a new way to monitor the temperature in your esophagus during a standard heart ablation procedure for atrial fibrillation. The goal is to see if the new catheter (Q-DOT Micro) safely heats the heart tissue without harming the esophagus.
Los Angeles, CaliforniaAges 18 years+ - NCT06392945Recruiting
Walking and thinking training with music for chronic stroke recovery
This trial tests whether adding a rhythmic beat (like a metronome or music) to walking while doing thinking tasks can improve walking after a stroke. It is for people who had a stroke more than 6 months ago and can already walk a short distance.
TaipeiAges 20–85 - NCT06393868RecruitingPhase 3
Preventing stomach bleeding with omeprazole during blood thinner therapy
This trial tests whether omeprazole (a stomach acid reducer) can help prevent stomach bleeding in older adults who are taking blood thinners for a newly diagnosed blood clot. It may be a good fit if you are 65 or older and starting blood thinners for a clot.
Ottawa, OntarioAges 65 years+ - NCT06393478Recruiting
Southeastern Europe Microcirculation Registry
This study is collecting information about how well the tiny blood vessels in the heart work in people with chest pain. It helps doctors learn more about microcirculation problems and may lead to better treatments.
RijekaAges 18 years+ - NCT06393764Recruiting
Blood clots in cancer patients: a long-term study
This study follows people who have both cancer and a blood clot. It aims to learn more about how these clots happen and how they are treated in cancer patients, so doctors can improve care.
BrestAges 18–80 - NCT06393894Recruiting
Latvian Early Atherosclerosis Registry Study
This study is gathering information from people with early heart artery blockages (occurring before age 55 for men or 65 for women) who need or have had treatment like stents or bypass. It helps doctors understand long-term outcomes.
RigaAges 18–65 - NCT06394180Recruiting
Study of perforations during clot removal for stroke
This trial looks at what happens when a hole (perforation) occurs in a brain artery during clot removal for stroke. It compares patients who had this complication to those who did not, to understand how to better manage it.
BaselAges 18 years+ - NCT06394453Recruiting
Feeding during cooling for brain injury in newborns
This study looks at whether it is safe to give small amounts of milk to babies who are being cooled for brain injury after a difficult birth. It may help doctors decide if feeding during cooling can improve outcomes.
CracowAges Up to 6 hours - NCT06394934Recruiting
Home blood pressure changes and artery health in hypertension
This study looks at how changes in home blood pressure readings over time relate to hardening of the arteries and metabolic problems in people with high blood pressure. If you take medication for high blood pressure and monitor your pressure at home, you may help researchers understand these connections better.
SeoulAges 19 years+ - NCT06395272Recruiting
Can a device improve walking after a stroke?
This trial tests a device called SURA that stimulates feeling in the ankle after a stroke. It may help people who have foot drop or trouble lifting their foot while walking.
Barcelona, Vilafranca Del PenedésAges 18–85 - NCT06395558Recruiting
Online support program for cardiac arrest survivors
This trial tests if an internet-based program helps people recover after a cardiac arrest. You may qualify if you were discharged from the hospital with good brain function and can use the web.
Bologna, BolognaAges 18–80 - NCT06396299Recruiting
Atrial fibrillation blood thinner outcomes study
This study follows people with atrial fibrillation to see how well blood-thinning medications work and what outcomes they experience over time. It aims to improve treatment guidance for patients with this common heart rhythm condition.
Bangkok, BangkokAges 18–100 - NCT06397833Recruiting
Monitoring heart pressure after heart failure hospitalization
This study is testing a new wearable device (Acorai ICPM) that measures pressure inside your heart. The goal is to see if it can help predict how well you will do after being discharged from the hospital for heart failure.
Uxbridge, MiddlesexAges 18 years+ - NCT06397417Recruiting
ECMO for refractory cardiac arrest
This study looks at a treatment called ECMO, a machine that does the work of the heart and lungs, to help people whose heart has stopped and does not restart with standard CPR. Researchers want to learn if placing ECMO at the scene can improve survival.
ParisAges 18 years+ - NCT06397456Recruiting
Kidney education program for Black patients in the hospital
This study tests whether a special education and referral program helps Black patients with advanced kidney disease learn about their treatment options before they need dialysis or a transplant. If you join, you will get extra support while you're in the hospital.
Chicago, IllinoisAges 18–70 - NCT06397937Recruiting
Helping stroke survivors with social needs after leaving the hospital
This study tests a program that helps stroke survivors with social needs (like housing or finances) when they go home. It's for Black or Hispanic adults in NYC who had a recent stroke and want extra support after discharge.
New York, New YorkAges 18–75 - NCT06398457RecruitingEarly Phase 1
Darzalex Before Stem Cell Transplant for High-Risk Graft Failure
This trial tests giving a drug called Darzalex Faspro before the usual desensitization and a stem cell transplant for people at high risk of graft failure due to donor-specific antibodies. The goal is to prevent the transplant from failing.
Baltimore, MarylandAges 18 years+ - NCT06399666Recruiting
Inflammation markers and genes in atrial fibrillation prediction
This trial looks at whether certain blood markers and genetic information can help predict atrial fibrillation (irregular heartbeat). It studies how inflammation might play a role, and aims to find better ways to identify people at risk.
Jönköping, SmålandAges 18 years+ - NCT06399900Recruiting
Light therapy plus exercise for better walking with PAD
This study tests whether adding light therapy to a walking program helps people with peripheral artery disease (PAD) walk further and feel better. You'll receive either light therapy or a placebo light while doing a supervised exercise program.
Chicago, IllinoisAges 50 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
- 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.