Clinical trials
Atrial Fibrillation and Flutter clinical trials
Below are recruiting atrial fibrillation and flutter clinical trials, each written for real people, not researchers. We’re tracking 92 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06542770Recruiting
Predicting hidden atrial fibrillation after cryptogenic stroke
This trial uses a small heart monitor to see if certain heart changes can predict hidden atrial fibrillation in people who had a stroke or mini-stroke with no clear cause. It aims to find those who might benefit from blood thinners to prevent another stroke.
BarcelonaAges 50–89 - NCT06401616RecruitingPhase 4
Stopping blood thinners after heart surgery for atrial fibrillation
This trial tests whether it is safe for patients with atrial fibrillation to stop taking blood thinners after they have had heart surgery, including closure of the left atrial appendage. The goal is to see if these patients can avoid long-term medication without increasing the risk of stroke.
Copenhagen, Capital RegionAges 18 years+ - NCT05434819Recruiting
Ablation study during heart surgery for atrial fibrillation
This trial looks at whether a special heart rhythm treatment called “ablation” works well when done during certain heart operations. It may help reduce atrial fibrillation (AF) symptoms or future abnormal rhythm episodes for people who are already having surgery.
Hamilton, OntarioAges 18 years+ - NCT05679024RecruitingPhase 3
Apixaban to prevent stroke in atrial fibrillation and kidney failure
This trial tests apixaban (a blood thinner) to prevent stroke in people with atrial fibrillation or atrial flutter who have very poor kidney function or are on dialysis. If you qualify, you may help researchers find a safer way to lower stroke risk for this higher-risk group.
HelsinkiAges 18 years+ - NCT07434674Recruiting
Long-Term Atrial Fibrillation After Acute Illness Study
This study is for people who recently had atrial fibrillation (an irregular heartbeat) for the first time while in the hospital or sick. It uses a small implantable heart monitor to see if the irregular heartbeat comes back over the next few years.
La Jolla, CaliforniaAges 18 years+ - NCT06054360Recruiting
Predicting irregular heartbeat after heart bypass surgery
This study uses an ultrasound test of the heart's right atrium to see if it can predict who will develop an irregular heartbeat (atrial fibrillation) after planned coronary bypass surgery. If you are scheduled for this surgery and have no history of atrial fibrillation, you may be able to join.
AmiensAges 18 years+ - NCT06187155Recruiting
How education level affects warfarin self-management
This study looks at how a person's education level affects their ability to manage their own blood-thinning medication (like warfarin). It aims to see if more education leads to better health outcomes.
AswānAges 18 years+ - NCT07175428RecruitingPhase 2
Safety of a New Blood Thinner in AFib Patients
This study tests the safety of a new blood thinner for people with atrial fibrillation (AFib) who need long-term stroke prevention. If you qualify, the study will compare this medication to standard anticoagulation therapy.
Dothan, AlabamaAges 18 years+ - NCT06728826Recruiting
Preventing atrial fibrillation after heart surgery with pericardiotomy
This study tests if opening the sac around the heart (pericardiotomy) can lower the chance of developing an irregular heartbeat called atrial fibrillation after heart surgery. It is for people having surgery on the heart's valves, major blood vessels, or arteries.
ShanghaiAges 18 years+ - NCT05326828Recruiting
Implant monitor to find hidden atrial fibrillation after heart injury
This study tests whether an implantable heart rhythm monitor can detect atrial fibrillation (an irregular heartbeat) in people who had a type of heart attack with non-obstructed arteries. The goal is to find a possible reason for the event so doctors can treat it appropriately.
BernAges 18–85 - NCT07438054Enrolling by invitation
Yearly heart-rhythm screening for adults 65 and older
This study tests whether monthly heart checks using a simple ECG (a quick test of your heart's electrical activity) can find a common heart-rhythm problem called atrial fibrillation earlier. You would visit your family health center once a month for 12 months to get the ECG done, no extra procedures or treatments are involved.
Ordu, OrduAges 65 years+ - NCT05565781Recruiting
Watch for hidden atrial fibrillation after unexplained stroke
This study uses a smartwatch and a longer heart-monitoring test (a Holter) to find an irregular heart rhythm called atrial fibrillation after a stroke whose cause is unclear. If they detect it, it may help guide better prevention and treatment to reduce future stroke risk.
Barcelona, CataloniaAges 55 years+ - NCT07430956RecruitingPhase 3
Stroke prevention in atrial fibrillation without standard blood thinners
This trial tests a new medication to prevent strokes and blood clots in people with atrial fibrillation (an irregular heartbeat) who cannot safely take standard blood thinners. The drug works by blocking a different clotting factor, which may lower bleeding risks.
Dothan, AlabamaAges 18 years+ - NCT06847932Recruiting
AI ECG to detect early atrial fibrillation
This trial uses an artificial intelligence system to analyze your electrocardiogram (ECG) results and alert your care team if you might be developing atrial fibrillation. It aims to catch this common heart rhythm problem early, so you can get treatment sooner.
TaipeiAges 1 month–3 months - NCT05955365RecruitingPhase 4
Single anticoagulant blood thinner after stent in atrial fibrillation
This trial tests whether taking a single “P2Y12 inhibitor” blood thinner (instead of multiple medicines) is safe and effective after you get a coronary stent. It’s for people with atrial fibrillation who need long-term blood thinning and have recently had a successful stent procedure.
HasseltAges 18 years+ - NCT06125925Recruiting
Ablation for AFib in patients with heart failure and preserved ejection fraction
This study tests whether a catheter ablation procedure can help people with atrial fibrillation and a kind of heart failure where the heart pumps normally but doesn't relax properly (HFpEF). It looks at whether the procedure can improve symptoms and heart function.
NanjingAges 18–80 - NCT07468123Enrolling by invitation
Estimating Atrial Fibrillation Risk With a Handheld ECG
This trial uses a simple, handheld ECG device (like a small card) to check your risk for atrial fibrillation, a common irregular heartbeat. You'll record short heart tracings at home, and the study team will review them to find hidden risk factors.
Boston, MassachusettsAges 18–90 - NCT06067438RecruitingPhase 2
Amiodarone to Prevent Irregular Heartbeat After Esophageal Cancer Surgery
This trial tests if amiodarone, a medication that helps keep your heart rhythm steady, can prevent a type of irregular heartbeat called atrial fibrillation after surgery to remove part of your esophagus. If you are having this surgery (called minimally invasive esophagectomy or MIE) for cancer or other esophagus problems, you may be able to join.
Portland, OregonAges 18 years+ - NCT05712200RecruitingPhase 3
Abelacimab for atrial fibrillation when blood thinners aren’t suitable
This Phase 3 study tests whether abelacimab can prevent stroke and other blood-clot problems in people with atrial fibrillation (or atrial flutter) who cannot safely take usual mouth blood thinners. It also looks at safety, especially bleeding risk.
Birmingham, AlabamaAges 65 years+ - NCT05549752RecruitingPhase 3
Flecainide vs amiodarone to treat fast heart rhythm in ER
This trial compares two medicines—flecainide and amiodarone—to help restore normal rhythm during an emergency visit for paroxysmal atrial fibrillation (a-fib). It’s aimed at people who also have coronary artery disease but no ongoing (residual) heart ischemia, and who have enough heart pumping strength.
AthensAges 18–85 - NCT06005233Recruiting
Smartwatch heart monitoring after unexplained stroke
This trial uses a smartwatch to look for hidden atrial fibrillation (an irregular heart rhythm) in people who have had a stroke or TIA with no known cause. It could help find the reason for the stroke and guide treatment to prevent another one.
MunichAges 40 years+ - NCT04823299Recruiting
Atrial fibrillation ablation using two different energy types
This trial tests whether one ablation approach works better than another for paroxysmal (intermittent) atrial fibrillation by targeting the heart’s “triggers” and “substrate” (where the rhythm problem is). If you qualify, you’ll be randomly assigned to one of two ablation energy methods during a pulmonary vein isolation procedure.
Ottawa, OntarioAges 18 years+ - NCT07611019Enrolling by invitationPhase 2/Phase 3
Colchicine to prevent heart rhythm problems after heart bypass surgery
This study tests whether taking colchicine (a common anti-inflammatory medication) before and after bypass heart surgery can prevent atrial fibrillation—an irregular heartbeat that sometimes occurs after surgery. Researchers hope this simple treatment might reduce complications and improve recovery.
TaipeiAges 20 years+ - NCT05106270Recruiting
Atrial pressure changes around a heart procedure for atrial fibrillation
This trial studies how changing pressure in the heart’s upper chamber before and after a combined heart procedure affects outcomes in people with atrial fibrillation. It may help guide safer, more effective care for patients who need left atrial appendage closure (a way to reduce stroke risk).
Shanghai, Shanghai MunicipalityAges 18 years+
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Common questions
- Are there clinical trials for atrial fibrillation and flutter?
- Yes. Clin2 currently lists 92 recruiting atrial fibrillation and flutter 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 and flutter 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 and flutter 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.