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Atrial Fibrillation trial readouts

registry pull 2026-08-19

Primary-completion dates that listed drug and biotech companies filed with ClinicalTrials.gov for studies in Atrial Fibrillation. They are the sponsor's own estimated windows, revised as a study runs — not announcement dates. sources →

Source: ClinicalTrials.gov, retrieved 2026-08-19

Upcoming readout windows

next 180 days · by month

6 studies across 3 companies, in the next 180 days.

October 2026 2

TickerNameStudyPhaseStatusPrimary completionReadout inUpdated
BSXBoston Scientific CorporationcOncomitant Left Atrial aPpendage Closure and Pulsed Field ablaTION-AsiaNCT06686485observationalPeriprocedural or procedure-related Composite Serious Adverse Events will be assessedRecruiting2026-10-31in 72 d2026-07-23
PLSEPulse Biosciences, Inc.NS-PFA Catheter Ablation of Paroxysmal Atrial Fibrillation With the Pulse Biosciences CellFX SystemNCT07018596Proportion of participants with freedom from primary safety endpointNot applicableRecruitingOct 2026≤ 72 d2026-05-06

December 2026 1

TickerNameStudyPhaseStatusPrimary completionReadout inUpdated
PLSEPulse Biosciences, Inc.CellFX® nsPFA™ Cardiac Surgery System to Treat Atrial FibrillationNCT06355063Rate of acute major adverse events (MAEs)Not applicableRecruiting2026-12-31in 133 d2026-01-12

February 2027 3

TickerNameStudyPhaseStatusPrimary completionReadout inUpdated
REGNRegeneron PharmaceuticalsSafety in Adult Participants With Atrial Fibrillation Who Are Treated With AnticoagulationNCT07175428Incidence of any bleedingPhase 2Recruiting2027-02-09in 173 d2026-08-05
BSXBoston Scientific CorporationFeasibility Study of the FARAFLEX Mapping and PFA SystemNCT06510556Device or procedure-related Composite Serious Adverse Events (CSAEs)Not applicableRecruiting2027-02-15in 179 d2026-07-27
BSXBoston Scientific CorporationFARAPULSE Workflow Assessment RegistryNCT06656884observationalAssociation of patient demographics with Index procedure Workflow-related variablesActive, not recruiting2027-02-15in 179 d2026-07-28

Primary completion is the date the sponsor filed with the registry — their own projection, revised whenever they revise it, unless the row is marked actual.

Every registered study in Atrial Fibrillation

most recently updated first

205 studies match. Showing the first 100 of 205 studies — page through, or narrow the filters.

TickerNameMarket capStudyPhaseStatusInterventionsConditionsEnrollmentStartPrimary completionReadout inUpdated
BSXBoston Scientific Corporation$73.1BReal World Data Collection in Subjects Treated With the FARAPULSE Pulsed Field Ablation SystemNCT05501873observationalPrimary Effectiveness EndpointActive, not recruitingDevice: FARAPULSE Pulsed Field Ablation systemAtrial Fibrillation1,1732023-03-242025-10-21actual2026-08-19
BSXBoston Scientific Corporation$73.1BPVI Alone vs PVI and Linear Ablation for Persistent Atrial Fibrillation (PROMPT AF II)NCT07106970Primary Effectiveness Endpoint with Treatment Success.Not applicableRecruitingProcedure: Linear ablation, PVI alonePersistent Atrial Fibrillation6402025-08-282027-12-30in 497 d2026-08-17
BSXBoston Scientific Corporation$73.1BWATCHMAN FLX Pro European RegistryNCT07262255observationalNumber of participants with a safety event treated with the WATCHMAN FLX ProRecruitingDevice: Left atrial appendage closureNon-valvular Atrial Fibrillation (AF), Left Atrial Appendage Closure1,0002025-12-17Aug 2027≤ 376 d2026-08-13
BSXBoston Scientific Corporation$73.1BCHAMPION-AF Clinical TrialNCT04394546WATCHMAN FLX is non-inferior (NI) for the occurrence of stroke, cardiovascular death, and systemic embolismNot applicableActive, not recruitingDevice: WATCHMAN FLX LAAC Device · Drug: Non-Vitamin K Oral AnticoagulantAtrial Fibrillation, Stroke, Bleeding3,0002020-10-15Dec 2027≤ 498 d2026-08-12
BSXBoston Scientific Corporation$73.1BSIMPLAAFY Clinical TrialNCT06521463Reduced dose NOAC Arm Primary Endpoint: Composite rate of all death, all stroke, systemic embolism, and ISTH major bleeding at 6-months after randomization in the reduced dose NOAC arm tested for non-inferiority compared to the DAPT armNot applicableActive, not recruitingDevice: WATCHMAN FLX Pro LAAC DeviceAtrial Fibrillation, Stroke, Bleeding1,8572024-10-012026-07-07actual2026-08-10
ADGMAdagio Medical$14MiCLAS™ for Persistent Atrial FibrillationNCT04061603results2026-08-06Analysis of the Proportion of Subjects Who Are Free From Device/Procedure Related Major Adverse Events (MAEs) That Occur Following the Cryoablation ProcedureNot applicableCompletedDevice: Adagio AF Cryoablation System (iCLAS™)Persistent Atrial Fibrillation2152019-12-092023-08-30actual2026-08-06
BSXBoston Scientific Corporation$73.1BEvaluation of the FARAFLEX Mapping and Pulsed Field Ablation System in Subjects With Atrial FibrillationNCT07575269Proportion of Treatment Subjects and Attempt Subjects with device- or procedure-related defined Composite Serious Adverse Events, assessed through Day 60 following the index procedure.Not applicableRecruitingDevice: FARAFLEX Mapping and Pulsed Field Ablation (PFA) SystemParoxysmal Atrial Fibrillation (PAF), Persistent Atrial Fibrillation5712026-07-072028-07-20in 700 d2026-08-06
REGNRegeneron Pharmaceuticals$76.1BSafety in Adult Participants With Atrial Fibrillation Who Are Treated With AnticoagulationNCT07175428Incidence of any bleedingPhase 2RecruitingDrug: REGN7508, REGN9933, ApixabanAtrial Fibrillation (AF)1,2002025-10-202027-02-09in 173 d2026-08-05
BSXBoston Scientific Corporation$73.1BOPTION-EMEA Clinical TrialNCT07349121Primary Safety Endpoint (PSE): Device or Procedure Related Serious Adverse EventsNot applicableRecruitingDevice: Concomitant pulsed field ablation (PFA) and left atrial appendage closure (LAAC) during one interventional case · Procedure: Concomitant Pulsed Field Ablation and Left Atrial Appendage ClosureAtrial Fibrillation (AF), Stroke Prevention in Patients With Atrial Fibrillation, Left Atrial Appendage Closure, Pulsed Field Ablation, Atrial Fibrillation Ablation Procedure, Concomitant Procedures5002026-06-18Dec 2028≤ 864 d2026-08-05
BSXBoston Scientific Corporation$73.1BA Global Study Comparing Pulsed Field Ablation With Electrographic Flow Mapping Versus Posterior Wall Ablation for Persistent Atrial FibrillationNCT07187115Primary Safety EndpointNot applicableActive, not recruitingDevice: FARAPOINT Pulsed Field Ablation System, OptiMap System (non-ablative), FARAPULSE Pulsed Field Ablation (PFA) System and Opal HDx Mapping SystemAtrial Fibrillation (AF), Persistant Atrial Fibrillation6992025-11-07Jul 2028≤ 711 d2026-07-29
BSXBoston Scientific Corporation$73.1BFARAPULSE Workflow Assessment RegistryNCT06656884observationalAssociation of patient demographics with Index procedure Workflow-related variablesActive, not recruitingAtrial Fibrillation (AF)5242025-05-062027-02-15in 179 d2026-07-28
BSXBoston Scientific Corporation$73.1BA Registry on the FARAVIEW Technology of the OPAL HDx Mapping System When Used With the FARAWAVE NAV Ablation Catheter in the Treatment of Atrial FibrillationNCT06808217observationalPrimary Safety EndpointActive, not recruitingDevice: FARAPULSE Pulsed Field Ablation SystemAtrial Fibrillation, Pulsed Field Ablation, FARAPULSE5502025-07-302027-04-01in 224 d2026-07-28
BSXBoston Scientific Corporation$73.1BPulsed Field Ablation (PFA) vs Anti-Arrhythmic Drug (AAD) Therapy as a First Line Treatment for Persistent Atrial FibrillationNCT06096337Rate of randomized PFA or PFA Assigned subjects with PFA System inserted into the body, during the index or repeat PFA procedure during blanking period, with device or procedure-related Composite Adverse Events that is serious.Not applicableActive, not recruitingDevice: FARAPULSE™ Pulsed Field Ablation (PFA) System · Drug: Anti-Arrhythmic Drug (AAD): Flecainide, Sotalol, Propafenone, Dofetilide, and DronedaronePersistent Atrial Fibrillation4842023-12-282026-02-04actual2026-07-27
BSXBoston Scientific Corporation$73.1BPOLARx Post Approval Study (POLARx PAS)NCT06170606Percentage of Participants With Freedom From Primary Safety Events at 12 Months Post-procedure (Acute and Chronic Events) Using the Boston Scientific Cardiac Cryoablation System With POLARx Cryoablation Balloon Catheter ModelsNot applicableCompletedDevice: Boston Scientific Cardiac Cryoablation SystemParoxysmal Atrial Fibrillation2002024-06-282026-05-20actual2026-07-27
BSXBoston Scientific Corporation$73.1BADVENT Post Approval StudyNCT06431815observationalComposite incidence of patients with procedure-related and device-related serious adverse events at 7-Days and 12-months post-Index Procedure.Active, not recruitingDevice: FARAPULSE™ Pulsed Field Ablation SystemParoxysmal Atrial Fibrillation2282024-09-25Oct 2028≤ 803 d2026-07-27
BSXBoston Scientific Corporation$73.1BFeasibility Study of the FARAFLEX Mapping and PFA SystemNCT06510556Device or procedure-related Composite Serious Adverse Events (CSAEs)Not applicableRecruitingDevice: FARAFLEX Ablation Treatment, ELEVATE-COR Sub-studyAtrial Fibrillation, Persistent Atrial Fibrillation, Paroxysmal AF2502025-02-172027-02-15in 179 d2026-07-27
BSXBoston Scientific Corporation$73.1BRepeat Ablation of Persistent Atrial Fibrillation, Including Mitral Isthmus Catheter Ablation, With the FARAPULSE Pulsed Field Ablation SystemNCT06735534Primary safety endpoint rateNot applicableRecruitingDevice: FARAPULSE™ Pulsed Field Ablation SystemPersistent Atrial Fibrillation3762025-06-03Apr 2027≤ 253 d2026-07-27
BSXBoston Scientific Corporation$73.1BEvaluation of Novel Waveforms Delivered Using the FARAPULSE™ PFA SystemNCT07444320Device or procedure-related Composite Adverse Events (CAEs)Not applicableRecruitingDevice: FARAPULSE™ Pulsed Field Ablation (PFA) SystemParoxysmal Atrial Fibrillation, Persistent Atrial Fibrillation2002026-02-12Feb 2028≤ 558 d2026-07-27
BSXBoston Scientific Corporation$73.1BcOncomitant Left Atrial aPpendage Closure and Pulsed Field ablaTION-AsiaNCT06686485observationalPeriprocedural or procedure-related Composite Serious Adverse Events will be assessedRecruitingDevice: FARAPULSE™ PFA system and WATCHMAN LAAC Delivery SystemsConcomitant Procedures, Atrial Fibrillation, PFA, LAAC4332025-03-182026-10-31in 72 d2026-07-23
BEATHeartBeam, Inc.$27MHeartBeam ECG RegistryNCT07501299observationalCreation of a de-identified ECG dataset for future research and regulatory useRecruitingDiagnostic test: Electrocardiogram (ECG)Atrial Fibrillation, Atrial Flutter, Bradycardia, Tachycardia, Arrhythmia6002026-03-30Dec 2028≤ 864 d2026-07-20
PFEPfizer$155.3BHigh Gastrointestinal Bleed Risk Outcomes in Patients With Non-valvular Atrial Fibrillation (NVAF) in FranceNCT05038228observationalBleeding leading to hospitalizationCompletedDrug: Apixaban, Rivaroxaban, Dabigatran, Vitamin K antagonist (VKA)Atrial Fibrillation12022-08-012026-05-29actual2026-06-30
ATRCAtriCure, Inc.$2.3BTracking Results of Ablations to Combat AF Registry Generation 2NCT05111015observationalPatient's AF burden 6-month after receiving the ablation procedureRecruitingDevice: Open Concomitant Surgical Ablation Procedures, Hybrid (Convergent) Ablation Procedures, AtriCure Hybrid Totally Thoracoscopic Ablation Procedures, AtriCure LAA Exclusion ProceduresAtrial Fibrillation10,0002024-03-11Jan 2040≤ 4,912 d2026-06-29
REGNRegeneron Pharmaceuticals$76.1BStroke and Systemic Embolism Prevention in Adult Participants With Atrial Fibrillation for Whom Oral Anticoagulation is UnsuitableNCT07430956Time to first occurrence of ischemic stroke or systemic embolismPhase 3RecruitingDrug: REGN7508, REGN9933, PlaceboAtrial Fibrillation (AF)2,6282026-04-032029-03-28in 951 d2026-06-23
REGNRegeneron Pharmaceuticals$76.1BStroke and Systemic Embolism Prevention in Adult Participants With Atrial FibrillationNCT07626411Time to first occurrence of stroke (ischemic, hemorrhagic, or of unspecified type) or systemic embolismPhase 3Not yet recruitingDrug: REGN7508, Apixaban, PlaceboAtrial Fibrillation (AF)15,3642026-07-312029-09-11in 1,118 d2026-06-04
BMYBristol-Myers Squibb$134.9BA Study Evaluating the Associations Between Clinical Characteristics and Use of Oral Anticoagulants in Italian Elderly Participants With Non-Valvular Atrial FibrillationNCT05232643observationalAnticoagulant (OA) cohort: Distribution of participants starting any type of anticoagulant direct-acting oral anticoagulant (DOAC) or Vitamin K antagonist (VKA) treatmentCompletedNon-Valvular Atrial Fibrillation (NVAF)6362020-07-092025-11-30actual2026-06-02
PLSEPulse Biosciences, Inc.$3.3BNS-PFA Catheter Ablation of Paroxysmal Atrial Fibrillation With the Pulse Biosciences CellFX SystemNCT07018596Proportion of participants with freedom from primary safety endpointNot applicableRecruitingDevice: CellFX nsPFA Cardiac Catheter SystemAtrial Fibrillation Paroxysmal, Cardiac Ablation, Cardiac Arrhythmia2152026-04-06Oct 2026≤ 72 d2026-05-06
PLSEPulse Biosciences, Inc.$3.3BCellFX® Nanosecond Pulsed Field Ablation (PFA) 360 Catheter Ablation System for Treatment of Atrial FibrillationNCT06696170Rate of primary safety major adverse events (MAEs)Not applicableRecruitingDevice: CellFX nano-pFA 360 Endocardial Ablation Catheter SystemAtrial Fibrillation Paroxysmal, Cardiac Ablation, Cardiac Arrhythmia602024-07-252026-06-252026-05-05
ADGMAdagio Medical$14MPulsed Field Ablation and Pulsed Field CRyoAbLation in PErsistent AtriaL FibrilLationNCT05408754Primary Endpoint for SafetyNot applicableCompletedDevice: Atrial ablation for subject scheduled for a de novo endocardial ablation of symptomatic, drug-refractory PsAF.Atrial Fibrillation892022-10-202024-10-14actual2026-04-13
ADGMAdagio Medical$14MiCLAS™ Cryoablation System Post-Market Clinical Follow-up (PMCF) StudyNCT05416086Primary outcome - freedom from AFNot applicableTerminatedsponsor's stated reason: Adagio Medical no longer manufactures the iCLAS Cryoablation SystemDevice: cryoablation procedure using the iCLAS Cryoablation SystemAtrial Fibrillation, Atrial Flutter, Paroxysmal Atrial Fibrillation, Persistent Atrial Fibrillation912021-09-032025-01-28actual2026-04-13
BSXBoston Scientific Corporation$73.1BADVENT Trial Long Term Outcomes Evaluating Atrial Fibrillation Progression StudyNCT06526546observationalChronic success in ADVENT Trial treated subjects compared between treatment groups.CompletedParoxysmal Atrial Fibrillation3642024-10-312025-12-08actual2026-03-02
BSXBoston Scientific Corporation$73.1BProspective Evaluation of Open Irrigated Ablation Catheters With High Resolution Mapping to Treat Paroxysmal Atrial FibrillationNCT03729830results2026-01-21observationalNumber of Participants Safety Event-free at 12 Months Post ProcedureCompletedDevice: Boston Scientific Open Irrigated Ablation CathetersParoxysmal Atrial Fibrillation4152019-03-042024-05-03actual2026-01-21
PLSEPulse Biosciences, Inc.$3.3BCellFX® nsPFA™ Cardiac Surgery System to Treat Atrial FibrillationNCT06355063Rate of acute major adverse events (MAEs)Not applicableRecruitingDevice: CellFX® nsPFA™ Cardiac Surgery SystemAtrial Fibrillation, Surgery, Ablation of Atrial Fibrillation, Clamp Study302024-07-312026-12-31in 133 d2026-01-12
PLSEPulse Biosciences, Inc.$3.3BCellFX® Nanosecond Pulsed Field Ablation (nsPFA)™ Cardiac Surgery Clamp System to Treat Atrial FibrillationNCT06959121Freedom from atrial fibrillation/atrial flutter/atrial tachycardiaNot applicableRecruitingDevice: CellFX® nsPFA™ Cardiac Surgery SystemAtrial Fibrillation, Maze Procedure, AF, Ablation1352025-10-23Apr 2027≤ 253 d2026-01-12
PFEPfizer$155.3BA Study to Learn About the Effects of Medicines That Help in Thinning the Blood in People With Atrial Fibrillation (AF) Between 2016 and 2020 in FranceNCT05838664results2025-12-24observationalIncidence Rate (Per 1000 Participant-years) of Stroke in Non-valvular Atrial Fibrillation (AF) Participants Exposed to Oral Anticoagulation (OAC) and Unexposed to OACCompletedDrug: No OAC, VKA, apixaban, rivaroxaban, dabigatranAtrial Fibrillation2,140,4032023-07-072024-09-30actual2025-12-24
BSXBoston Scientific Corporation$73.1BA Prospective Single Arm Open Label Study of the FARAPULSE Pulsed Field Ablation System in Subjects With Persistent Atrial FibrillationNCT05443594results2025-10-24Primary Safety Endpoint (PSE): Event Rate of Safety Events Post ProcedureNot applicableCompletedDevice: Phase 1: FARAPULSE Ablation System, Phase 2: FARAPULSE Ablation SystemPersistent Atrial Fibrillation6692023-02-282025-02-11actual2025-12-16
BSXBoston Scientific Corporation$73.1BWatchman FLX Pro CT Pilot StudyNCT05567172results2025-12-09Number of Participants With Any Hypoattenuated Thickening (HAT) on the Surface of the DeviceNot applicableCompletedDevice: Left atrial appendage closure device WM FLX ProNon-valvular Atrial Fibrillation (AF)432023-03-242024-10-14actual2025-12-09
BSXBoston Scientific Corporation$73.1BPOLARx™ Cardiac Cryoablation System Post Market Clinical Study (POLAR SMART)NCT05282823results2025-12-02observationalSafety Event Free RateCompletedDevice: Boston Scientific Cardiac Cryoablation SystemParoxysmal Atrial Fibrillation2952022-08-262024-10-29actual2025-12-02
PFEPfizer$155.3BAtrial Fibrillation Data Linkage Non-Interventional StudyNCT05810727observationalEvent Rate of Stroke/Systemic embolism (SE)CompletedAtrial Fibrillation12,5562025-08-212025-10-23actual2025-11-20
BSXBoston Scientific Corporation$73.1BHEAL-LAA Clinical TrialNCT05809596results2025-10-15Primary Efficacy Endpoint: The Rate of Device Leak >5 mm at 45-day Post-Implant TEE for the Primary Analysis SubjectsNot applicableCompletedDevice: WATCHMAN FLX Pro LAAC DeviceAtrial Fibrillation, Bleeding, Stroke9492023-10-032024-07-15actual2025-11-04
4568.TDaiichi Sankyo$31.7BA Study to Evaluate Effectiveness and Safety of Edoxaban in Patients 80 Years of Age or Older With Nonvalvular Atrial FibrillationNCT05804747observationalNumber of Participants With Composite of Stroke, Systemic Embolic Events, Major Bleeding, or All-Cause MortalityCompletedDrug: EdoxabanAtrial Fibrillation1,2042023-02-162025-07-28actual2025-09-26
BSXBoston Scientific Corporation$73.1BComparison of Anticoagulation With Left Atrial Appendage Closure After AF AblationNCT03795298results2025-09-18Primary Effectiveness Endpoint: Stroke, All Cause Death, and Systemic EmbolismNot applicableCompletedDevice: WATCHMAN FLX Implant · Drug: Market-approved OACAtrial Fibrillation1,6002019-05-202024-07-24actual2025-09-18
BSXBoston Scientific Corporation$73.1BFeasibility Study on the FARAVIEW TechnologyNCT06175234Number of subjects with PVI successNot applicableCompletedDevice: Ablation TreatmentAtrial Fibrillation, Paroxysmal Atrial Fibrillation, Persistent Atrial Fibrillation502024-04-032025-05-15actual2025-09-17
BMYBristol-Myers Squibb$134.9BClinical and Economic Outcomes of Oral Anticoagulants in Non-valvular Atrial FibrillationNCT03087487observationalTime to first major bleeding eventCompletedNon-Valvular Atrial Fibrillation466,9912016-06-012023-02-26actual2025-06-25
BSXBoston Scientific Corporation$73.1BCryoablation System FIM/CE Mark StudyNCT03723070results2021-07-19Primary Safety Outcome: Percentage of Participants With Procedure Related Adverse Events OR Device Related Adverse Events OR Serious Adverse Device EffectsNot applicableCompletedDevice: The Cryterion Cardiac Cryoablation SystemAtrial Fibrillation882018-05-152020-12-22actual2025-04-04
BSXBoston Scientific Corporation$73.1BPOLARx Cardiac Cryoablation System StudyNCT04250714results2024-02-12observationalSafety Event Free RateCompletedDevice: Boston Scientific Cardiac Cryoablation SystemAtrial Fibrillation4002020-08-062022-09-26actual2025-04-04
BSXBoston Scientific Corporation$73.1BBoston Scientific's Cryoballoon in the Treatment of Symptomatic Drug Refractory Paroxysmal Atrial FibrillationNCT04133168results2023-12-07Percentage of Participants With Freedom From Primary Safety Events at 12 Months Post-procedure (Acute and Chronic Events) Using the Boston Scientific Cardiac Cryoablation System With POLARx Cryoablation Balloon Catheter ModelsNot applicableCompletedDevice: Boston Scientific Cardiac Cryoablation SystemParoxysmal Atrial Fibrillation4582020-06-242022-11-10actual2025-04-03
PFEPfizer$155.3BPatient Characteristics, Treatment Patterns And Incidence Of Events (Discontinuation, Persistence, Key Primary Clinical Outcomes) In NVAF Patients Initiating OAC Therapy In ColombiaNCT04234698results2025-02-06observationalTime to Diagnose NVAF by Each OAC TreatmentCompletedAtrial Fibrillation2,0762021-03-222021-10-31actual2025-02-06
BSXBoston Scientific Corporation$73.1BA RWS of the FARAPULSE in A Chinese Population With PAFNCT05493852results2024-12-16observationalNumber of Participants With Acute Procedural SuccessCompletedDevice: FARAPULSE Pulsed Field Ablation SystemParoxysmal Atrial Fibrillation302023-02-242023-08-21actual2025-01-31
BSXBoston Scientific Corporation$73.1BClinical Evaluation of the StablePoint Catheter and Force Sensing System for Paroxysmal Atrial FibrillationNCT04580914results2025-01-16Rate of Primary Safety Events at 1-Month Post-ProcedureNot applicableCompletedDevice: Treatment with IntellaNav StablePoint Ablation CatheterParoxysmal Atrial Fibrillation3212021-04-122023-06-21actual2025-01-16
ATRCAtriCure, Inc.$2.3BFREEZE-AFIB Post-Market StudyNCT05089877results2025-01-13observationalFreedom From Death, Stroke (Regardless of Level of Disability), Myocardial Infarction, and Major Bleeding Events.CompletedDevice: Surgical AblationAtrial Fibrillation, Atrial Flutter392022-04-292023-03-31actual2025-01-13
4568.TDaiichi Sankyo$31.7BReal-world Study on Edoxaban Treatment for Patients With Non-valvular Atrial Fibrillation in ChinaNCT04747496observationalIncidence (including 95% confidence intervals) of major bleeding events following edoxaban treatmentCompletedDrug: EdoxabanNon-valvular Atrial Fibrillation5,0002021-02-262024-11-27actual2025-01-09
BSXBoston Scientific Corporation$73.1BThe FARAPULSE PersAFOne III Trial for the Treatment of Persistent Atrial FibrillationNCT05272852results2025-01-08Primary Safety Endpoint: Composite Safety Endpoint (CSE) Defined as the Incidence of the Following Early-onset and Late-onset Serious Adverse Events (SAEs) Which Are Device- or Procedure-related, as Adjudicated by the CEDMCNot applicableCompletedDevice: FARAPULSE™ Pulsed Field Ablation System PlusPersistent Atrial Fibrillation802022-02-032024-02-09actual2025-01-08
ATRCAtriCure, Inc.$2.3BPivotal Study Of A Dual Epicardial & Endocardial Procedure (DEEP) ApproachNCT02393885results2024-12-19Primary Effectiveness EndpointNot applicableCompletedDevice: AtriCure Bipolar System and AtriClip® PRO LAA Exclusion System, Endocardial AblationAtrial Fibrillation, Persistent or Longstanding Persistent Atrial Fibrillation90Feb 20152022-03-28actual2024-12-19
BSXBoston Scientific Corporation$73.1BLUX-Dx Insertable Cardiac Monitor Remote Programming and Performance StudyNCT04732728results2024-11-25observationalICM System-related Complication-free Rate at 30 Days Post-implantCompletedAtrial Fibrillation, Syncope, Cryptogenic Stroke7272021-03-052023-05-18actual2024-11-25
BSXBoston Scientific Corporation$73.1BThe FARAPULSE ADVENT PIVOTAL Trial PFA System vs SOC Ablation for Paroxysmal Atrial FibrillationNCT04612244results2024-11-20Composite Safety Endpoint;Proportion of MITT Subjects With One or More of the Specified Device or Procedure Related SAEsNot applicableCompletedDevice: FARAPULSE Pulsed Field Ablation System, RadioFrequency and Cryoballoon AblationParoxysmal Atrial Fibrillation7062021-03-012023-05-15actual2024-11-20
BSXBoston Scientific Corporation$73.1BThe FARAPULSE FARA-Freedom TrialNCT05072964results2024-10-17Effectiveness: Percentage of Participants Free of Chronic Treatment Failure Through 12 Months and Freedom From Recurrence of Symptomatic Atrial Fibrillation, Atrial Tachycardia or Atrial FlutterNot applicableCompletedDevice: FARAPULSE Pulsed Field Ablation SystemParoxysmal Atrial Fibrillation1802021-12-212023-10-12actual2024-10-17
ATRCAtriCure, Inc.$2.3BCombined Endoscopic Epicardial and Percutaneous Endocardial Ablation Versus Repeated Catheter Ablation in Persistent and Longstanding Persistent Atrial FibrillationNCT02695277Number of subjects free from documented Atrial Fibrillation (AF), Atrial Flutter (AFL) or Atrial Tachycardia (AT) episodes > 30 seconds in duration through 12 months follow-up, in the absence of Class I or III Antiarrhythmic Drugs (AADs).Not applicableCompletedDevice: AtriCure Bipolar System, Standard Endocardial Ablation with Catheter, AtriClip® PRO LAA Exclusion System, Endocardial Ablation with Catheter, Repeated Endocardial ablation(s)Atrial Fibrillation, Persistent and Longstanding Persistent Atrial Fibrillation146Nov 2015Nov 2022actual2024-10-15
ATRCAtriCure, Inc.$2.3BAtriCure CryoICE Lesions for Persistent and Long-standing Persistent Atrial Fibrillation TreatmentNCT03732794Primary Effectiveness Endpoint: Freedom from AF/Atrial Flutter (AFL)/Atrial Tachycardia (AT)Not applicableActive, not recruitingDevice: AtriCure CryoICE & AtriClip LAA ExclusionAtrial Fibrillation (AF), Persistent Atrial Fibrillation, Longstanding Persistent Atrial Fibrillation1502019-01-302024-06-27actual2024-10-15
BSXBoston Scientific Corporation$73.1BObserve the Safety and Effectiveness of the WATCHMAN FLX™ for Subjects in Hong KongNCT04096963results2024-08-12observationalPrimary Effectiveness EndpointCompletedDevice: The WATCHMAN FLX Delivery SystemNon-valvular Atrial Fibrillation502020-06-192022-01-24actual2024-08-12
TEMTempus AI$8.6BElectrocardiogram-based Artificial Intelligence-assisted Detection of Heart DiseaseNCT05442203Positive-predictive value (PPV) of the AF device at six monthsNot applicableUnknown statusDevice: Zio Patch Monitor, EchocardiogramAtrial Fibrillation, Structural Heart Disease1,0002022-09-07Jul 20252024-07-25
PFEPfizer$155.3BSafety and Effectiveness of Apixaban Compared to Warfarin in Patients With Non-valvular Atrial Fibrillation (a Type of Irregular Heart Rhythm) at Higher Chance of BleedingNCT05471505results2024-07-11observationalIncidence Rate Per 1000 Participant-Years For First Occurrence of Composite Stroke and Systemic Embolism (SE) Events After Index Date: Balanced CohortsCompletedNon-valvular Atrial Fibrillation120,7222022-08-252022-09-27actual2024-07-11
BEATHeartBeam, Inc.$27MAIMIGo 12L ECG Synthesis Software Pivotal Study for Arrythmia DetectionNCT06123130Clinical equivalence of ECG intervals compared between AIMIGo Synthesized 12L and reference standard 12LNot applicableCompletedDevice: Vectorcardiography (VECG)Arrhythmias, Cardiac, Atrial Fibrillation, Atrial Flutter, Bradycardia, Tachycardia1982024-03-132024-06-20actual2024-07-05
BMYBristol-Myers Squibb$134.9BDeteCtiON and Stroke PreventIon by MoDEl ScRreenING for Atrial FibrillationNCT05838781Incident AFNot applicableCompletedDiagnostic test: Risk prediction model, 14-days continuous ECG monitoringAtrial Fibrillation, Atrial Flutter2,1122023-12-042024-05-16actual2024-05-22
PFEPfizer$155.3BSafety and Effectiveness of Apixaban in Very Elderly Patients With Non-valvular Atrial Fibrillation (NVAF) Compared to Warfarin Using Administrative Claims DataNCT05438888results2024-05-20observationalIncidence Rate (Per 1,000 Participant-Year) of Composite of Stroke and Systemic Embolism (SE): Balanced CohortsCompletedDrug: Warfarin, ApixabanNon-valvular Atrial Fibrillation77,8142022-07-012022-10-19actual2024-05-20
ABBVAbbVie$457.5BBotulinum Toxin Type A (AGN-151607) for the Prevention of Post-operative Atrial Fibrillation in Adult Participants Undergoing Open-chest Cardiac Surgery (NOVA)NCT03779841results2024-05-14Percentage of Participants With at Least 1 Continuous AF (Atrial Fibrillation or Atrial Flutter) Episode ≥ 30 Seconds During the First 30 Days Post-surgeryPhase 2CompletedDrug: AGN-151607, PlaceboPost-Operative Atrial Fibrillation3232019-03-012022-03-24actual2024-05-14
ATRCAtriCure, Inc.$2.3BaMAZE Trial Continued Access ProtocolNCT04468334Freedom from episodes of atrial fibrillation > 30 seconds at 12 months post index pulmonary vein isolationNot applicableCompletedDevice: LARIAT + PVIAtrial Fibrillation822020-03-092023-04-24actual2024-03-12
BSXBoston Scientific Corporation$73.1BFeasibility Study of the FARAPULSE™ Cardiac Ablation System Plus in the Treatment of Persistent Atrial Fibrillation(PersAFOne II)NCT05152966results2024-01-31Composite Safety Endpoint;Proportion of Intent to Treat Subjects With One or More of the Specified Device or Procedure Related SAEsNot applicableCompletedDevice: AblationPersistent Atrial Fibrillation202021-09-162022-12-01actual2024-02-28
BSXBoston Scientific Corporation$73.1BFeasibility Study of the FARAPULSE Endocardial Multi Ablation System in the Treatment of Persistent Atrial FibrillationNCT04170621results2024-01-30Safety at 30 DaysNot applicableCompletedDevice: AblationPersistent Atrial Fibrillation282019-10-182021-07-14actual2024-01-30
PFEPfizer$155.3BSafety and Effectiveness of Apixaban Compared to Warfarin in Secondary Prevention in Patients With Atrial FibrillationNCT05321810results2024-01-11observationalIncidence Rate of a Composite of Recurrent Stroke or Systemic Embolism (SE) During the Follow-up Period: Secondary Prevention (Balanced) CohortCompletedDrug: Apixaban, WarfarinNon-valvular Atrial Fibrillation193,5652022-04-152022-04-15actual2024-01-11
SNYSanofiSystematic Review and Meta-Analysis of Multaq® for Safety in Atrial FibrillationNCT05279833observationalNumber of participants with Cardiovascular (CV) hospitalizationCompletedDrug: dronedarone, sotalolAtrial Fibrillation87,8102021-09-242022-03-31actual2024-01-09
BMYBristol-Myers Squibb$134.9BStudy of the Effects of BMS-919373 on the Electrical Activity of the Heart Using PacemakersNCT02153437The effect of BMS-919373 on Atrial effective refractory period (AERP) in subjects with a dual chamber pacemakerPhase 1TerminatedDrug: BMS-919373, Sotalol, Placebo for BMS-919373Atrial Fibrillation72014-10-302016-10-20actual2023-12-19
ATRCAtriCure, Inc.$2.3BCONVERGE - Epi/Endo Ablation For Treatment of Persistent Atrial Fibrillation(AF)NCT01984346results2022-02-10Primary Efficacy Endpoint - Number of Participants to Achieve Freedom From AF/AT/AFL.Not applicableCompletedDevice: AtriCure EPi-Sense-AF Guided Coagulation System with VisiTrax, Endocardial RF Catheter ablation using Open Irrigated-tip RF Abaltion Catheter with unidirectional or bidirectional steeringPersistent Atrial Fibrillation170Dec 2013Aug 2019actual2023-11-13
4568.TDaiichi Sankyo$31.7BEdoxaban in Patients With Non-valvular Atrial Fibrillation Undergoing Percutaneous Coronary InterventionNCT04519944observationalUsage of Peri- and Post-procedural Anticoagulation and Antiplatelet Therapy in Patients With Non-valvular Atrial Fibrillation Undergoing Percutaneous Coronary InterventionCompletedDrug: EdoxabanNon-valvular Atrial Fibrillation6662020-06-302023-07-06actual2023-08-02
BMYBristol-Myers Squibb$134.9BA Study to Determine if Identification of Undiagnosed Atrial Fibrillation in People at Least 70 Years of Age Reduces the Risk of StrokeNCT04126486Incidence of all strokes leading to hospitalizationPhase 4CompletedOther: Zio®XT MonitorAtrial Fibrillation, Atrial Flutter11,9312019-12-172023-06-30actual2023-07-12
BMYBristol-Myers Squibb$134.9BA Study Evaluating Quality of Life for Participants With Atrial Fibrillation (AF) Following a Bleed (EQUAL-AF)NCT05044533observationalDistribution of characteristics of AF participants: Quality of life (QoL) dataCompletedAtrial Fibrillation502021-05-312022-03-09actual2023-06-18
PFEPfizer$155.3BApixaban Drug Utilization Study In Stroke Prevention In Atrial Fibrillation (Spaf)NCT03441633results2019-04-19observationalNumber of Participants by Their Sociodemographic Characteristics: Smoking HabitCompletedDrug: apixaban, dabigatran, VKA, rivaroxabanAtrial Fibrillation51,6902016-02-182017-03-08actual2023-06-09
PFEPfizer$155.3BEffectiveness And Safety Of Oral Anticoagulants Among Obese Patients With Non-Valvular A-Fib In VA Patients With MedicareNCT04681482results2021-12-06observationalEvent Rate Per 100 Participant-Years For First Occurrence of Major Bleeding Events After Index Date in Obese ParticipantsCompletedDrug: ApixabanAtrial Fibrillation, Obesity, Anticoagulants107,3832020-11-022020-11-03actual2023-05-22
PFEPfizer$155.3BAssessment of the Effectiveness and Safety Outcome in Patients With Atrial Fibrillation Treated by Apixaban in BelgiumNCT05116267observationalEvent Rate of Stroke/Systemic Embolism Requiring Hospitalization: Apixaban treated patientsWithdrawnsponsor's stated reason: Protocol is not feasible based on the available hospital recordsAtrial Fibrillation02021-10-012022-12-312023-05-17
BSXBoston Scientific Corporation$73.1BElectrical Coupling Information From The RHYTHMIA HDx Mapping System and DIRECTSENSE Technology In The Treatment of Paroxysmal Atrial Fibrillation (LOCALIZE CF)NCT04740801Association between Local Impedance drop values and PV reconnectionsNot applicableCompletedDevice: Ablation procedureParoxysmal Atrial Fibrillation602021-06-282022-07-21actual2023-05-11
BSXBoston Scientific Corporation$73.1BA Single Arm Pilot Study of Pulsed Field Ablation in the Treatment of Paroxysmal Atrial FibrillationNCT04474054results2023-04-21Occurence of Device-or Procedure-related Early and Late-onset of Serious Adverse EventsNot applicableCompletedDevice: Catheter ablation to treat paroxysmal atrial fibrillationParoxysmal Atrial Fibrillation152020-07-072021-12-21actual2023-04-21
PFEPfizer$155.3BNon-interventional, Retrospective Cohort Study to Explore OAC Treatment in KoreaNCT03572972results2020-02-12observationalEvent Rate of Stroke/Systemic Embolism Requiring Hospitalization: NOAC Versus Warfarin AnalysisCompletedDrug: Apixaban, Dabigatran, Rivaroxaban, warfarin, AntiplateletsAtrial Fibrillation64,6842018-01-312018-12-20actual2023-04-06
PFEPfizer$155.3BNon-Interventional Study Describing Direct Costs Related to Anti-coagulation TreatmentNCT04435769results2023-02-08observationalCHA2-DS2-VASc Score at BaselineCompletedAtrial Fibrillation1092020-08-042021-05-31actual2023-02-08
AAPLApple Inc.$4.52TAtrial Fibrillation Algorithms Clinical Validation StudyNCT04699812results2022-08-24SENSITIVITY OF IRREGULAR RHYTHM NOTIFICATION FEATURE [IRNF]Not applicableCompletedDevice: ELECTROCARDIOGRAM (ECG) PATCH WEARAtrial Fibrillation5732020-11-162021-04-19actual2022-08-24
ATRCAtriCure, Inc.$2.3BCONVERGE CAP Study-For The Treatment Of Symptomatic Persistent or Long-standing Persistent AFNCT04239534Primary Effectiveness Endpoint- Freedom from Atrial Fibrillation, Atrial Tachycardia and Atrial FlutterNot applicableWithdrawnsponsor's stated reason: Start-up and enrolling activities have been suspended and study closedDevice: Convergence Of Epicardial And Endocardial RF AblationAtrial Fibrillation0Dec 2021Dec 20232022-07-27
BMYBristol-Myers Squibb$134.9BStudy to Describe Risk of Bleeding in Patients Depending on the Different Anticoagulant Therapy They Are on for Atrial Fibrillation (AF)NCT03508258observationalIncidence of major bleedingWithdrawnsponsor's stated reason: Study was discontinued in 2018 as sufficient sample size was not met.Other: Non-interventional, Non-InterventionalNon-valvular Atrial Fibrillation02017-09-012018-09-01actual2022-06-30
BSXBoston Scientific Corporation$73.1BMODULA Modul 7 VRRNCT00180414results2022-03-29Percentage of Biventricular PacingNot applicableTerminatedsponsor's stated reason: low enrolment rateDevice: CRT devices with ventricular rate regulation [VRR] (CE labeled)Atrial Fibrillation82004-08-282008-05-07actual2022-06-24
BSXBoston Scientific Corporation$73.1BInvestigational Device Evaluation of the WATCHMAN FLX™ LAA Closure TechnologyNCT02702271results2022-06-14Number of Participants With a Safety EventNot applicableCompletedDevice: WATCHMAN FLXAtrial Fibrillation4582018-05-072020-01-28actual2022-06-14
BSXBoston Scientific Corporation$73.1BData Collection Atrial Fibrillation Exploratory StudyNCT03647085observationalPhysiologic Signal DetectionTerminatedsponsor's stated reason: Due to COVID-19 and resourcing challengesDevice: Wearable cardiac monitorAtrial Fibrillation, Atrial Flutter272018-08-292019-01-10actual2022-06-09
BMYBristol-Myers Squibb$134.9BEliquis Safety Surveillance in Japanese Patients With NonValvular Atrial FibrillationNCT02007655observationalIncidence rate of unexpected adverse eventsCompletedDrug: EliquisNonValvular Atrial Fibrillation6,3722013-09-012016-08-31actual2022-06-07
4568.TDaiichi Sankyo$31.7BEdoxaban Treatment in Routine Clinical Practice for Patients With Non Valvular Atrial FibrillationNCT02944019observationalPercentage of Participants Experiencing Real-World Safety Data Events within 4 YearsCompletedDrug: EdoxabanAtrial Fibrillation13,980Aug 20152022-04-13actual2022-06-01
BMYBristol-Myers Squibb$134.9BEvaluation of Safety and Effectiveness on Oral AnticoagulantsNCT03765242observationalIncidence of major bleeding among oral anticoagulant (OAC) initiatorsCompletedOther: Non-InterventionalAtrial Fibrillation12,3542018-09-212020-12-25actual2022-05-13
BMYBristol-Myers Squibb$134.9BReal-World Comparative Observational Study in Non-Valvular Atrial Fibrillation Patients Using Oral AnticoagulantsNCT02754154observationalTime to "First Major" Bleeding eventCompletedDrug: Warfarin, Apixaban, Dabigatran, RivaroxabanAtrial Fibrillation321,1822014-12-312018-12-26actual2022-05-09
BSXBoston Scientific Corporation$73.1BA Safety and Feasibility Study of the FARAPULSE Endocardial Ablation System to Treat Paroxysmal Atrial FibrillationNCT03714178results2022-05-04The Primary Safety Endpoint for This Study is the Composite Safety Endpoint (CSE) Defined as the Proportion of Patients With Early-onset and Late-onset Serious Adverse Events (SAEs) Which Are Device- or Procedure-related.Not applicableCompletedDevice: FARAPULSE Endocardial Ablation SystemParoxysmal Atrial Fibrillation712018-10-202020-12-21actual2022-05-04
BSXBoston Scientific Corporation$73.1BPEFCATII Expanded Safety and Feasibility Study of the FARAPULSE Endocardial Multi Ablation System to Treat Paroxysmal Atrial FibrillationNCT04170608results2022-05-04Safety: Number of Participants With Prespecified Primary Safety Events Within 30 Days of Index Procedure.Not applicableCompletedDevice: FARAPULSE Endocardial Multi Ablation SystemParoxysmal Atrial Fibrillation102019-10-182020-12-07actual2022-05-04
BSXBoston Scientific Corporation$73.1BWATCHMAN for Concomitant Left Atrial Appendage Electrical Isolation and Occlusion to Treat Persistent Atrial Fibrillation RhythmNCT03835338Freedom from AFNot applicableWithdrawnsponsor's stated reason: Sponsor discretionDevice: Pulmonary Vein Isolation, LAA Isolation, LAA OcclusionPersistent Atrial Fibrillation02021-09-012023-04-302022-03-31
BSXBoston Scientific Corporation$73.1BContinued Access to PREVAIL (CAP2) - WATCHMAN Left Atrial Appendage (LAA) Closure TechnologyNCT01760291results2021-11-24Number of Participants With Ischemic StrokeNot applicableCompletedDevice: WATCHMAN LAA Closure TechnologyAtrial Fibrillation576Sep 2012Apr 2019actual2022-03-29
4568.TDaiichi Sankyo$31.7BEdoxaban Compared to Standard Care After Heart Valve Replacement Using a Catheter in Patients With Atrial Fibrillation (ENVISAGE-TAVI AF)NCT02943785results2022-03-24Number of Participants Who Experienced Net Adverse Clinical Events (Adjudicated Data) Based on ISTH Criteria in Participants Taking Edoxaban vs VKAPhase 3CompletedDrug: Edoxaban-based Regimen, VKA-based RegimenAtrial Fibrillation1,4262017-03-212021-02-28actual2022-03-24
BMYBristol-Myers Squibb$134.9BA Study of Participants With Non-Valvular Atrial Fibrillation (NVAF) Treated or Untreated With Oral Anticoagulant in the National Cerebral and Cardiovascular Center (NCVC) in JapanNCT05027061observationalSpecialization of the treating physicianCompletedNon-Valvular Atrial Fibrillation (NVAF)11,7762021-04-022021-12-04actual2022-03-17
ATRCAtriCure, Inc.$2.3BAtriClip® Left Atrial Appendage Exclusion Concomitant to Structural Heart Procedures (ATLAS)NCT02701062results2021-11-24Number of Perioperative Complications Associated With AtriClip PlacementPhase 4CompletedDevice: AtriClip® Gillinov-Cosgrove™ LAA Exclusion Systems · Drug: Anticoagulation TherapyPost-Operative Atrial Fibrillation562Feb 20162019-04-26actual2021-11-24
BSXBoston Scientific Corporation$73.1BWatchman FLX Left Atrial Appendage Closure Device Post Approval Study ( Europe Only)NCT02654470observationalprocedural successCompletedDevice: Watchman FLXNon-valvular Atrial Fibrillation3002019-07-162021-09-28actual2021-11-19

Primary completion is the date the sponsor filed with the registry — their own projection, revised whenever they revise it, unless the row is marked actual.

How Atrial Fibrillation is matched — 13 exact registry spellings

A study is on this page when its ClinicalTrials.gov record names one of these conditions exactly (letter case aside). Nothing is matched by substring or stem, so a longer condition that merely contains one of these words is a different page. The list was curated by hand and last measured 2026-08-19; a spelling filed by only one study was not curated, so the counts here are a floor rather than the registry's own total for the disease.

  • Atrial Fibrillation
  • Paroxysmal Atrial Fibrillation
  • Persistent Atrial Fibrillation
  • Non-valvular Atrial Fibrillation
  • Atrial Fibrillation (AF)
  • Longstanding Persistent Atrial Fibrillation
  • Atrial Fibrillation Paroxysmal
  • Non-Valvular Atrial Fibrillation (NVAF)
  • Non-valvular Atrial Fibrillation (AF)
  • NonValvular Atrial Fibrillation
  • Paroxysmal Atrial Fibrillation (PAF)
  • Post-Operative Atrial Fibrillation
  • Stroke Prevention in Patients With Atrial Fibrillation

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