Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 10,066 recruiting studies in this area right now.
By phase
- Not applicable8,037
- Phase 2488
- Phase 4482
- Phase 3452
- Phase 1360
- Phase 1/Phase 2161
- Phase 2/Phase 386
Top conditions
- Stroke856
- Heart Failure566
- Hypertension403
- Cardiovascular Diseases390
- Coronary Artery Disease375
- Multiple Myeloma329
- Atrial Fibrillation273
- Ischemic Stroke199
- Atrial Fibrillation (AF)146
- Acute Ischemic Stroke141
- Pulmonary Hypertension104
- Myocardial Infarction98
- Congenital Heart Disease87
- Peripheral Arterial Disease85
- Stroke, Ischemic84
- Acute Coronary Syndrome83
- Obesity80
- Aortic Valve Stenosis78
Leading sponsors
- Mayo Clinic94
- Assistance Publique - Hôpitaux de Paris92
- National Taiwan University Hospital74
- China National Center for Cardiovascular Diseases59
- Beijing Tiantan Hospital54
- Massachusetts General Hospital51
- Riphah International University51
- Second Affiliated Hospital, School of Medicine, Zhejiang University51
- Insel Gruppe AG, University Hospital Bern50
- Johns Hopkins University47
Where studies are running
- California467
- Alabama198
- Massachusetts181
- Arizona176
- New York166
- Florida145
- Illinois120
- Maryland120
- Texas120
- Minnesota119
Recruiting studies10,063 total
- NCT07440667Recruiting
Fluid amounts during planned C-section and recovery
This trial compares giving less fluid versus more fluid during planned C-section surgery to see which approach leads to better recovery afterward.
Niğde, MerkezAges 18–45 - NCT07441057Recruiting
Studying a therapy for arm movement in kids with stroke
This study tests whether a therapy called CHRIST can help children who've had a stroke improve the movement and function of their affected arm and hand.
Mandi Bahāuddīn, Punjab ProvinceAges 7–12 - NCT07441382Recruiting
Comparing treatments for frail older adults with atrial fibrillation
This study tests whether combining a heart procedure (catheter ablation) with a device to close the left atrial appendage (LAAO) is safer or better than blood thinners alone for frail patients 75 years or older with atrial fibrillation and high stroke risk. It aims to find a treatment that reduces stroke while lowering bleeding risks.
Guangzhou, GuangdongAges 75 years+ - NCT07442175Recruiting
Blood pressure monitor test for atrial fibrillation detection
This trial tests a blood pressure monitor that can also detect atrial fibrillation (an irregular heartbeat). You may join if you are 22 or older, have an average-sized arm, and either have been diagnosed with AF or have never had it — as long as you don't have a pacemaker or defibrillator.
Tianjin, Tianjin MunicipalityAges 22 years+ - NCT07442903Recruiting
Tricuspid valve repair with remote pressure monitoring
This trial tests a new way to closely monitor heart function during tricuspid valve repair or replacement. A tiny sensor is placed in your lung artery to track pressure, helping doctors adjust your care remotely.
MunichAges 18 years+ - NCT07443670Recruiting
Voice analysis for heart failure monitoring
This trial tests whether analyzing your voice recordings (taken daily) can detect changes in lung artery pressure. It could help monitor heart failure without extra clinic visits.
San Francisco, CaliforniaAges 18 years+ - NCT07443696RecruitingPhase 2
Heart imaging test to see if bypass surgery could help
This study uses two imaging scans to see if parts of your heart muscle are still alive but not working well. This could help doctors decide if you might benefit from heart bypass surgery.
Beijing, Beijing MunicipalityAges 18–85 - NCT07444047Recruiting
MRI study of brain lesions in older MS patients
This study uses MRI scans to compare brain lesions in older patients with multiple sclerosis versus those with small vessel disease. It aims to improve how doctors tell apart these conditions and may lead to better treatment choices.
Oslo, OsloAges 50–80 - NCT07444138Recruiting
Beetroot extract for blood pressure and exercise in older women
This study tests whether drinking beetroot extract can help lower blood pressure and improve exercise ability in older women with high blood pressure. It compares beetroot extract to a placebo (a drink with no active ingredient) while participants do light physical activities.
Bauru, São PauloAges 60 years+ - NCT07444151Recruiting
Post-stroke fatigue perception study
This study explores fatigue after stroke. If you have ongoing tiredness that you believe stems from your stroke, researchers want to learn from your experience through a questionnaire.
Carouge, Canton of GenevaAges 18 years+ - NCT07444320Recruiting
Testing new energy pulses for atrial fibrillation treatment
This trial tests a new way to deliver energy (FARAPULSE PFA system) to treat atrial fibrillation (AF), a type of irregular heartbeat. It aims to see if these new waveforms can safely and effectively stop AF symptoms and improve quality of life.
SplitAges 18 years+ - NCT07444372Recruiting
CPAP for Sleep Apnea After Atrial Fibrillation Ablation
This trial tests whether starting CPAP therapy (a breathing mask used during sleep) after a heart procedure called atrial fibrillation ablation can help people with both sleep apnea and atrial fibrillation. It might lower the chance of the heart rhythm problem coming back.
Beijing, Beijing MunicipalityAges 18–75 - NCT07444398RecruitingPhase 1
Vericiguat for worsening heart failure
This trial tests if adding vericiguat to standard heart failure medicines helps people hospitalized with worsening heart failure. It's for those with a weak heart pump and high NT-proBNP levels.
Rawalpindi, Punjab ProvinceAges 25–65 - NCT07444697Recruiting
Erections after heart stent in men with and without heart attack
This study looks at how having a stent placed affects men's ability to have erections. It compares men who had a heart attack with those who had stable chest pain. If you take part, you will fill out short questionnaires about your sexual function and recovery for 6 months.
KirikkaleAges 30–75 - NCT07444853Recruiting
Improving recovery after brain hemorrhage
This study looks at people who come to the emergency room with a bleeding stroke (called intracerebral hemorrhage). It aims to learn more about the condition by studying blood tests and brain scans, to find ways to improve outcomes.
AngersAges 18 years+ - NCT07444931Recruiting
Predicting cardiac arrest risk in heart disease patients
This study looks at factors that may help predict sudden cardiac arrest in people with coronary artery disease. If you have a recent diagnosis of significant blockage or a heart attack, joining this trial could help improve risk assessment.
HaderaAges 18–75 - NCT07444957Recruiting
Safety of a drug-coated balloon for heart artery blockages
This study tests a special balloon coated with a drug called sirolimus to open blocked heart arteries. It may be an option for people with coronary artery disease who need a less invasive treatment.
Vigo, PontevedraAges 18 years+ - NCT07445438Recruiting
A multi-omics study for blood cancers
This study is testing whether a complete platform that analyzes multiple molecular levels (multi-omics) can be used to better understand and diagnose blood cancers (hematological malignancies). It looks at samples from the blood, bone marrow, and tissues to help with initial diagnosis or when cancer returns after treatment.
Parma, PRAges 2 years+ - NCT07446777Recruiting
Fasting and Mediterranean diet for multiple myeloma
This study tests whether a special diet—longer nightly fasting plus a Mediterranean eating pattern—can help people with multiple myeloma or its early stages. If you qualify, you will be randomly assigned to start the diet right away or join a waitlist group.
Miami, FloridaAges 18 years+ - NCT07446842Recruiting
AI model for better diagnosis of brain diseases
This study is building an artificial intelligence system to improve how doctors diagnose brain conditions using scans like MRI. If you are diagnosed with one of the listed conditions, your scans and medical information may help train the AI.
Wuhan, HubeiAges Any age - NCT07447297Recruiting
Early Rhythm Control for Device-Detected Fast Heart Episodes
This trial tests whether starting treatment early to control your heart's rhythm can help people with a heart device who have short bursts of a fast heartbeat (called atrial high rate episodes) but haven't yet been diagnosed with atrial fibrillation on a standard EKG or Holter monitor.
Seoul, SeoulAges 19 years+ - NCT07447362Recruiting
Managing heart health risks in adults
This study checks if a program to manage heart health risks works better than usual care. If you have a risk factor like high blood pressure, diabetes, or smoking, you may qualify.
Santiago, Santiago MetropolitanAges 18 years+ - NCT07447648Recruiting
Evinacumab for plaque buildup in HoFH
This observational study looks at how adding evinacumab to standard cholesterol-lowering therapy affects plaque in the heart arteries of people with homozygous familial hypercholesterolemia (HoFH). It compares those who started evinacumab within the last 2 years to those on standard therapy alone, using CT scans taken before and after treatment.
ParisAges 12 years+ - NCT07447804Recruiting
Diaphragm and Breathing Strength in Hemiplegia Patients
This study looks at how hemiplegia affects the diaphragm (the main breathing muscle) and your breathing strength. It aims to help guide rehabilitation after a stroke.
Istanbul, AtaşehirAges 18–80
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 10,066 recruiting cardiology studies from the U.S. registry right now, out of 15,554 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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- Pain
- Injuries & trauma
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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.