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
- NCT06973031Recruiting
Testing a new system for treating atrial fibrillation
This trial tests a new device that uses pulsed electric fields to treat atrial fibrillation (AF), a type of irregular heartbeat. It aims to see if this approach is safe and effective for people with AF that comes and goes or lasts for a short time.
KaiserslauternAges 18–80 - NCT06960252Recruiting
Cycle length mapping for long-term atrial fibrillation
This study tests a new mapping technique to find chaotic electrical signals in the heart during persistent atrial fibrillation. It may help doctors better target treatment for people whose atrial fibrillation does not stop with medication.
Taipei, Outside USAges 20 years+ - NCT06959121Recruiting
Treating AFib during open-heart surgery with a new device
This trial tests a new device used during open-heart surgery to treat atrial fibrillation (AFib) by delivering tiny, fast electrical pulses to the heart tissue. It is for people who are already having heart surgery and want to also treat their AFib at the same time.
St. Helena, CaliforniaAges 18–85 - NCT06951100Recruiting
Study of heart injury in rapid atrial fibrillation
This study looks at how a very fast heart rate from atrial fibrillation might affect the heart muscle. If you are having symptoms from this condition and haven't had a prior heart attack or stent, you may be able to help researchers understand the link and improve care.
Edinburgh, East of EnglandAges 18 years+ - NCT06938412Recruiting
Exercise and Fitbit for Afib patients
This study tests whether using a Fitbit activity tracker and a supportive exercise program helps people with AFib become more active. It may help you feel better and manage your heart rhythm.
New York, New YorkAges 18 years+ - NCT06871228Recruiting
Stopping blood thinners after successful AF ablation with close heart monitoring
This trial tests whether people with atrial fibrillation who have had a successful ablation procedure can safely stop taking blood thinners (NOACs) if they wear a monitor to check for any silent heart rhythm problems. It may help you avoid the risks of long-term blood thinner use if your ablation has been effective.
Hefei, AnhuiAges 18–80 - NCT06842147Recruiting
AI Heart Monitor for New Atrial Fibrillation Detection
This trial uses a special long-term heart monitor (one wire) that uses artificial intelligence to find new cases of atrial fibrillation, a type of irregular heartbeat that can increase stroke risk. If you're 60 or older and haven't had AF before, this study could help catch it early.
Zhejiang, QuzhouAges 60 years+ - NCT06647485Recruiting
Pulsed Field Ablation for Paroxysmal Atrial Fibrillation
This trial studies a new procedure called pulsed field ablation to treat brief episodes of atrial fibrillation (AFib). The goal is to see if it can help reset the heart's natural electrical system and reduce symptoms.
Aalst, BelgiumAges 18–70 - NCT06802965Enrolling by invitation
Shanghai atrial fibrillation patient registry study
This study tracks people in Shanghai who have been diagnosed with atrial fibrillation (AF, a heart rhythm condition). By joining a registry, researchers can learn more about how AF is managed over time in the local population.
ShanghaiAges Any age - NCT06802081RecruitingPhase 2
Tirzepatide for weight loss in people with atrial fibrillation
This study tests whether tirzepatide, a medication that helps with weight loss and blood sugar control, can improve the heart rhythm condition atrial fibrillation. If you have AFib and are overweight or obese, this trial may be an option for you.
Cleveland, OhioAges 18–80 - NCT06784466Recruiting
New ablation procedure for atrial fibrillation
This study is testing a new type of ablation procedure for atrial fibrillation (an irregular heart rhythm). It uses special energy to create scar tissue in the heart to block faulty electrical signals. If you have AF that isn’t controlled by medication, you may qualify.
Birmingham, AlabamaAges 18–80 - NCT06772207Enrolling by invitation
Heart rehab needs in atrial fibrillation patients
This study looks at what heart rehabilitation people with newly diagnosed atrial fibrillation need and how to improve their care. If you were diagnosed with atrial fibrillation in 2022 or 2023 and live in Denmark, you may be eligible.
OdenseAges 18 years+ - NCT06754176Recruiting
Alcohol and AFib: Avoiding vs. Allowing Drinking
This study tests whether avoiding alcohol completely for two weeks helps people with AFib have fewer episodes, compared to allowing regulated drinking. You will be randomly assigned to one of the two groups.
San Francisco, CaliforniaAges 21 years+ - NCT06696170Recruiting
New catheter for atrial fibrillation using nanosecond pulses
This trial tests a new catheter that uses very short electrical pulses to treat atrial fibrillation (a type of irregular heartbeat). It may help people whose AF symptoms continue despite medication.
HasseltAges 18–75 - NCT06699342Recruiting
Pacing and heart ablation for atrial fibrillation
This trial tests a combination of heart pacing and a specialized ablation procedure in older adults with permanent atrial fibrillation that hasn't improved with other treatments. It aims to improve symptoms and reduce hospital stays related to heart failure.
Seoul, Jongno-guAges 65 years+ - NCT02347111RecruitingPhase 4
Genetic study to guide antiarrhythmic drugs for atrial fibrillation
This study looks at how a person’s genetics may affect how well and safely antiarrhythmic medicines work for atrial fibrillation (AF). If you join, you may get medicine options like flecainide or sotalol, and researchers compare outcomes to genetic information.
Chicago, IllinoisAges 18–100 - NCT06615596RecruitingEarly Phase 1
Stopping blood thinners after successful atrial fibrillation ablation
This trial tests whether it is safe to stop taking blood thinners (anticoagulants) after a successful ablation procedure for atrial fibrillation. If you have had no AF for 3 months after your first ablation, you may be able to stop these medications, reducing your risk of bleeding.
Boston, MassachusettsAges 18 years+ - NCT06557616Recruiting
CoolCryo system for treating atrial fibrillation during mitral valve surgery
This trial tests a new tool called CoolCryo that freezes heart tissue to treat atrial fibrillation while you have mitral valve surgery. If you are already having this surgery and also have AF, this device could correct both problems at once.
BydgoszczAges 18 years+ - NCT06557876Recruiting
Pulse field ablation for atrial fibrillation mechanics
This study tests if a new type of energy called pulse field ablation (a procedure that uses short bursts of electric pulses) works as well as standard ablation for restoring normal heart rhythm in patients with episodes of irregular heartbeat. It may help your heart pump more normally.
Paris, FranceAges 18 years+ - NCT06355063Recruiting
CellFX device for atrial fibrillation during open-heart surgery
This trial tests a new device called CellFX that uses nanosecond pulsed field ablation to treat atrial fibrillation during open-heart surgery. It may help you if you already need heart surgery and also have AFib.
ViennaAges 18–85 - NCT06324188Recruiting
Early ablation for afib to prevent stroke in high-risk patients
This trial tests whether an early procedure (catheter ablation) for atrial fibrillation (AF) can prevent strokes in people with a high risk of stroke. The goal is to see if this treatment is safer and more effective than standard care for patients with other health conditions.
Multiple LocationsAges 18 years+ - NCT06263608Recruiting
Sleep apnea testing and treatment for atrial fibrillation patients
This study tests a new way to check and treat sleep apnea in people with atrial fibrillation (AF). If you have AF and symptoms, you may be able to join and get sleep tracking and treatment that could help both your heart and sleep.
EdegemAges 18 years+ - NCT06249269Recruiting
Lifestyle Change to Improve AF Ablation Results
This trial tests whether a healthy lifestyle program (including exercise and weight loss) can help people with atrial fibrillation (AF) who are overweight or have related health risks. You will have a catheter ablation procedure, and the study will see if lifestyle changes improve your heart's rhythm long-term.
Calgary, AlbertaAges 18 years+ - NCT06165510Recruiting
Convergent ablation and left atrial appendage isolation for persistent AF
This trial tests a two-step procedure for persistent atrial fibrillation that combines a heart ablation with isolation of a small heart pouch. It aims to see if this approach is more effective than standard care.
LondonAges 18–80
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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.