Clinical trials
Atrial fibrillation clinical trials
An irregular, often rapid heart rhythm that can raise the risk of stroke. We’re tracking 543 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- 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+ - NCT06253000Recruiting
Heat vs. Freezing for the Back of the Heart
This trial tests two ways to treat the back wall of the heart's left chamber in people with stubborn atrial fibrillation. It compares radiofrequency (heat) and cryoablation (freezing) to see which is safer and works better.
MoscowAges 18–80 - NCT04075084Recruiting
Watching outcomes of routine home monitoring after a heart monitor implant
This registry study follows people who get a BIOTRONIK implantable heart monitor and use home monitoring. It looks at how routine care and at-home check-ins work in real life, which may help improve support and tracking over time.
AdelaideAges 18 years+ - NCT06220006Recruiting
Comparing heart tissue burns for atrial fibrillation treatment
This study compares two ways to create small burns in the heart tissue to fix an irregular heartbeat (atrial fibrillation). It uses a special MRI to see how well each method works.
Barcelona, CataloniaAges 18 years+ - NCT06216769Recruiting
Pill-in-the-pocket blood thinners after AF ablation
This study tests a 'pill-in-the-pocket' approach for blood thinners after a catheter ablation for atrial fibrillation. Instead of taking a daily blood thinner, you may only take it when needed, which could reduce the risk of bleeding while still preventing strokes.
SeoulAges 19–89 - NCT06211413Enrolling by invitation
Tracking heart issues in CLL patients on BTK inhibitors
This study watches for high blood pressure and irregular heartbeats in people with CLL who are starting a type of targeted therapy called a BTK inhibitor (acalabrutinib or zanubrutinib). Researchers will use a smartwatch and blood pressure cuff to monitor your heart health at home.
Philadelphia, PennsylvaniaAges 22 years+ - NCT06164808Recruiting
Comparing a wearable heart monitor to a standard Holter monitor
This study compares a new wearable heart monitor (HeartWatch) that you wear on your left bicep to the standard Holter monitor. It aims to see if the HeartWatch is as good at recording your heart's rhythm over 24-48 hours, so you might have a more comfortable option for heart monitoring.
Calgary, AlbertaAges 22 years+ - NCT06176131Recruiting
Telemedicine support for heart failure after hospital
This study tests a care program that uses telemedicine to help people with serious heart failure stay stable after leaving the hospital. It focuses on those who needed multiple hospital stays recently.
FrederiksbergAges Any age - NCT06168370Recruiting
Personalized blood thinners after TAVI vs. standard care
This trial tests whether a personalized plan for blood thinners after TAVI can reduce the risk of stroke or bleeding better than the current standard of one daily blood thinner. If you've had a successful TAVI and don't need specific other blood thinners, you might be able to join.
NieuwegeinAges 18–110 - NCT06152406Recruiting
Ablate and Pace HIS for atrial fibrillation and heart failure
This study tests a new approach called 'Ablate and Pace HIS' for people with atrial fibrillation and heart failure who haven't improved with other treatments. It combines a heart ablation procedure with a special type of pacing to help your heart pump more efficiently and reduce symptoms.
Leicester, LeicestershireAges 18–100 - NCT06096246Recruiting
Comparing treatments for persistent atrial fibrillation
This study compares two treatments for persistent atrial fibrillation (AF) that lasts more than 7 days but less than 2 years: electrical cardioversion (a shock to reset your heart rhythm) versus catheter ablation (using radio waves to fix the heart's electrical pathways). It aims to find which option works better for patients like you.
LondonAges 18–85 - NCT06099730Recruiting
Pulsed field ablation for atrial fibrillation
This trial tests a new method called pulsed field ablation to treat atrial fibrillation (AF), a type of irregular heartbeat. It aims to safely stop AF episodes by targeting specific areas in the heart, and may help people with paroxysmal (coming and going) or persistent AF who haven't had this procedure before.
Jonesboro, ArkansasAges 18–80 - NCT06056271Recruiting
Tracking AI use during AF ablation in real-world care
This trial is for people with atrial fibrillation (AF) who are having or recently had a catheter ablation procedure. It looks at how using a special artificial intelligence tool, called VX1, during the procedure affects patient outcomes.
Evanston, IllinoisAges 21 years+ - NCT05841056RecruitingPhase 3
Short-term heart rhythm medication after heart surgery
This study tests whether giving a short course of a medication called amiodarone after heart surgery helps prevent or control new irregular heartbeats (atrial fibrillation) and helps you leave the hospital sooner.
Hamilton, OntarioAges 18 years+ - NCT05795842Recruiting
Detecting atrial fibrillation after stroke using a wrist monitor
This study checks whether a special wrist device can detect an irregular heartbeat (atrial fibrillation) in people who recently had a stroke with an unclear cause. It may help doctors find the cause earlier and tailor follow-up care.
Atlanta, GeorgiaAges 55 years+ - NCT05775354Enrolling by invitation
Early heart disease check-in in adults age 50–80
This study aims to improve early detection of heart and blood vessel problems by adding further research after routine care. It may help you by making sure your heart risk is monitored more closely, if you’re eligible and agree to the additional steps.
UtrechtAges 50–80 - NCT05664308Recruiting
Watch-based heart rhythm monitoring after heart surgery
This study tests whether a connected watch can help monitor an irregular heart rhythm (atrial fibrillation) after heart surgery. It looks at people who develop new atrial fibrillation after surgery and compares how well monitoring works over the next 12 months.
Nantes, Loire AtlantiqueAges 18 years+ - NCT05510167Recruiting
How quitting alcohol affects heart rhythm after ablation
This study looks at whether stopping alcohol after a heart procedure called catheter ablation helps prevent irregular heartbeats from coming back and improves your thinking and quality of life.
Austin, TexasAges 18–85 - NCT05452356Recruiting
Testing a phone-based care plan for people with heart conditions
This trial tests a phone app that helps deliver organized “care plans” for people with cardiovascular (heart/vessel) conditions. You might join to see if this phone-based support improves how care is delivered and helps you manage your condition.
London, OntarioAges 18 years+ - NCT05305612Enrolling by invitationPhase 4
Blood thinners during heart valve or left atrial appendage procedures
This study compares different ways of using blood thinners during procedures to fix a leaky mitral valve or close the left atrial appendage. The goal is to find the safest approach to prevent strokes and bleeding.
GdanskAges 18 years+ - NCT05300997Recruiting
Test blood and antibody markers for suspected acute stroke
This study looks at blood tests to find signs of immune activity after a suspected stroke. It may help doctors diagnose stroke faster and better understand what is happening in the body soon after symptoms start.
Hong KongAges 18–100 - NCT05236556Enrolling by invitation
Tracking how providers use oral blood thinners for AF
This study looks at how often and how well doctors use oral blood-thinner medicines for people with atrial fibrillation (AF) or atrial flutter (a related heart rhythm problem). It aims to see whether “provider profiling” (using clinic patterns to guide improvements) can support safer, more consistent use of these medicines.
Jacksonville, FloridaAges 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+ - NCT05116384Recruiting
Renal nerve ablation plus AF ablation for persistent AF
This study tests whether treating kidney-related nerves along with the usual AF (irregular heartbeat) catheter procedure works better than the usual procedure alone. It may help some people with persistent AF, but you must meet specific heart and kidney safety requirements.
Short Hills, New JerseyAges 18 years+
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Common questions
- Are there clinical trials for atrial fibrillation?
- Yes. Clin2 currently lists 543 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.