Clinical trials
Atrial fibrillation clinical trials
An irregular, often rapid heart rhythm that can raise the risk of stroke. We’re tracking 546 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07174206Recruiting
Smartwatch monitoring for heart patients
This trial tests a smartwatch tool to track heart rhythm and detect problems in people with heart disease. It may help find irregular heartbeats early during routine checkups.
São Paulo, São PauloAges 22 years+ - NCT07217392Recruiting
Study on pacing the left bundle branch area of the heart
This study tests a new way to place a pacemaker lead in the left bundle branch area of the heart. It may help people who need a pacemaker to see if this approach is safe and works well.
Rio de Janeiro, Rio de JaneiroAges 18 years+ - NCT07236619Recruiting
A new heart procedure for atrial fibrillation
This study tests a new catheter that uses pulsed field energy to isolate the veins in your heart that trigger atrial fibrillation. The goal is to see how long the effects last, and you would need to have a repeat procedure about 2–3 months after the first one.
Rotterdam, South HollandAges 18–80 - NCT07250529Recruiting
Comparing two pacemaker pacing methods for heart block
This study compares two types of pacemaker pacing methods in people with heart block and normal heart pumping function. It looks at how often short bursts of fast heart rhythm occur in the upper heart chambers, which may help improve long-term heart health.
PátraiAges 18 years+ - NCT07278089Recruiting
AF screening for people with heart changes on echo
This trial checks if people with certain heart conditions seen on an echo (like an enlarged heart or stiff heart muscle) have undetected atrial fibrillation (AF). It aims to find AF early so it can be treated to prevent strokes.
TaipeiAges 20 years+ - NCT05136131Recruiting
Quality-of-life support after cardioversion for persistent AF
This study looks at how a heart rhythm procedure (cardioversion) affects quality of life in people with persistent atrial fibrillation (AF). It may help you understand whether a specific approach can improve day-to-day symptoms and well-being after treatment.
Newmarket, OntarioAges 18 years+ - NCT07347691Recruiting
AI predicts atrial fibrillation after stroke of unknown cause
This trial uses an artificial intelligence (AI) program to see if it can predict which patients who had a stroke from an unknown cause might develop atrial fibrillation (an irregular heart rhythm). If you have a small heart monitor already implanted, the AI will analyze your ECGs to find early signs of AFib, which could help prevent future strokes.
AnsanAges 30 years+ - NCT07385417Recruiting
Early AF treatment for heart failure with preserved pumping function
This study tests using a new electrical pulse treatment for atrial fibrillation (AF) early on, in people who also have a type of heart failure where the heart pumps normally but is stiff. The goal is to see if this treatment helps manage both conditions better.
Frankfurt am MainAges 18–80 - NCT07389434Recruiting
Testing reused catheters for atrial fibrillation treatment
This trial tests whether reusing special catheters to treat atrial fibrillation is safe, effective, and better for costs and the environment. It may help people with atrial fibrillation who need a procedure called pulmonary vein isolation.
ZagrebAges 18 years+ - NCT01258231Recruiting
Genetic test to predict risks after heart surgery
This study looks for genetic (DNA) clues that may help predict side effects or complications after heart surgery. If you join, your genome information may be used to understand who is at higher risk and why.
Boston, MassachusettsAges 20–90 - NCT02808260Recruiting
Tracking what predicts abnormal heart rhythms after pacemaker
This study looks for patterns that can predict an abnormal heart rhythm called SCAF in people who have a pacemaker or defibrillator. The goal is to help doctors recognize risk earlier and respond sooner if it happens.
Ottawa, OntarioAges 18 years+ - NCT02219984Recruiting
Survey of adults taking blood thinners in a patient registry
This study builds a registry by asking adults who take blood thinners (anticoagulants) about their experiences. It may help improve care by learning how these medicines are used in real life.
Bologna, BOAges 18 years+ - NCT03168659Recruiting
Study of HeartLight during catheter ablation for irregular heartbeat
This study looks at the HeartLight device during a procedure to treat atrial fibrillation (an irregular heart rhythm) that comes and goes. It is meant for adults whose symptoms continue even after trying at least one anti-arrhythmia medicine.
Tucson, ArizonaAges 18 years+ - NCT06315192Recruiting
Stroke alarm app trial for faster care
This trial tests a smartphone app called Stroke Alarm to see if it helps people who have had a recent stroke, mini-stroke, or have untreated atrial fibrillation get faster care. You may be eligible if you are 50 or older, have a smartphone, and had a relevant event in the last 2 weeks.
GothenburgAges 18 years+ - NCT07614659Recruiting
Heart health screening for adults in Uppsala, Sweden
This study invites residents of Uppsala, Sweden who are turning 50, 55, 60, 65, 70, or 75 to participate in cardiovascular (heart and blood vessel) health screening. The goal is to help identify heart health risks early so you can take steps to stay healthy.
UppsalaAges 50–75 - NCT01759225Enrolling by invitation
Registry study of people with heart and blood vessel disease
This is a registry (a study that collects health information) for people with certain heart and blood vessel conditions. It may help researchers better understand who has these diseases, how they are managed, and outcomes over time.
Tel AvivAges Any age - NCT07414121Recruiting
Vascular closure vs manual compression after AF ablation
This study compares two methods to close the blood vessel after a catheter ablation for atrial fibrillation (AF). It may help reduce bleeding or other problems at the access site.
HamburgAges 18–95 - NCT07421076Recruiting
Grid mapping study for atrial fibrillation ablation
This trial tests a new mapping tool to help doctors find and treat the source of atrial fibrillation (AF) during a standard ablation procedure. It may offer a more precise way to guide treatment for people with AF that comes and goes.
Jinan, ShandongAges 18 years+ - NCT07439016Recruiting
LA function after pulse field ablation for paroxysmal AF
This trial tests how pulse field ablation (a treatment that uses short electrical pulses to correct irregular heartbeats) affects the left atrium's function in people with paroxysmal atrial fibrillation (AFib that comes and goes). It may help if you have paroxysmal AFib and are in normal rhythm at the start of the procedure.
PragueAges 18 years+ - NCT07462910Recruiting
Checking diaphragm nerve function after pulsed field ablation
This study looks at how a new type of catheter ablation (pulsed field ablation) for atrial fibrillation affects the phrenic nerve, which controls the diaphragm. Researchers will use X-rays to see if the treatment causes any temporary diaphragm problems.
MontrealAges 18 years+ - NCT05111015Recruiting
Ablation tracking study for people with atrial fibrillation
This study tracks results after a heart ablation procedure used to treat atrial fibrillation (an irregular heart rhythm). You may be asked to help by consenting and following the study plan so the researchers can better understand what happens after ablations.
Huntsville, AlabamaAges 18 years+ - NCT07515040Recruiting
AccuSafe guidewire versus needle for heart rhythm procedure
This trial compares two different tools used during a minimally invasive heart procedure to treat atrial fibrillation (an irregular heartbeat). The study tests whether a newer guidewire tool is safer and works as well as the traditional needle approach.
Nanchang, JiangxiAges 18–75 - NCT07518446Recruiting
Health Screening for Adults Starting Psychiatric Care
This study checks the physical health of adults beginning treatment for serious mental illnesses like schizophrenia or depression at two Danish clinics. It aims to catch health problems early that people with these conditions often experience.
CopenhagenAges 18 years+ - NCT07521800Recruiting
Remote Heart Monitoring After Aortic Valve Replacement
This study tests whether monitoring your heart rhythm at home using a portable ECG device after your aortic valve replacement procedure (TAVI) helps catch problems early. Researchers want to see if remote monitoring is safe and helpful for patients recovering from this procedure.
TurinAges 18 years+
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Common questions
- Are there clinical trials for atrial fibrillation?
- Yes. Clin2 currently lists 546 recruiting atrial fibrillation studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a atrial fibrillation trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a atrial fibrillation trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.