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Atrial Fibrillation clinical trials in California
30 studies for Atrial Fibrillation are looking for participants at sites in California.
Cities in California
- Los Angeles9 studies
- Ventura7 studies
- Huntington Beach7 studies
- San Francisco7 studies
- San Diego7 studies
- Mountain View6 studies
- Santa Rosa5 studies
- Pasadena4 studies
- Simi Valley4 studies
- Fremont3 studies
- San Bernardino3 studies
- Sacramento3 studies
ReVeRA-301: Etripamil in Atrial Fibrillation Phase 3
- Blue Coast Research Center, LLC, Vista
- Interventional Cardiology Medical Group (West Hills, CA), West Hills
RecruitingPhase 3
Ages 18 and older · All sexes · Updated Nov 12, 2026 · NCT06716021Stroke and Systemic Embolism Prevention in Adult Participants With Atrial Fibrillation for Whom Oral Anticoagulation is Unsuitable
- Mission Cardiovascular Research Institute, Fremont
- National Institute of California Heart and Vein Specialists, Huntington Beach
- Profound Research LLC at San Diego Cardiovascular Associates, La Jolla
- and 5 more
RecruitingPhase 3
Ages 18 and older · All sexes · Updated Nov 10, 2026 · NCT07430956Safety in Adult Participants With Atrial Fibrillation Who Are Treated With Anticoagulation
- Valley Clinical Trials, Inc, Covina
- North Coast Cardiology, Encinitas
- Mission Cardiovascular Research Institute, Fremont
- and 7 more
RecruitingPhase 2
Ages 18 and older · All sexes · Updated Nov 5, 2026 · NCT07175428Stroke and Systemic Embolism Prevention in Adult Participants With Atrial Fibrillation
- Valley Clinical Trials, Inc, Covina
- Mission Cardiovascular Research Institute, Fremont
- National Institute of California Heart and Vein Specialists, Huntington Beach
- and 8 more
RecruitingPhase 3
Ages 18 and older · All sexes · Updated Nov 5, 2026 · NCT07626411A Study Assessing Long-Term Safety and Effectiveness in Treatment Management of Atrial Fibrillation With VARIPULSE Catheter System
- OC Memorial, Fountain Valley
- Community Memorial Hospital, Ventura
Recruiting
Ages 22 and older · All sexes · Updated Nov 4, 2026 · NCT07227532A Study of VARIPULSE Pulsed Field Ablation (PFA) Catheter and FARAWAVE PFA Catheter in the Treatment of Participants With Persistent Atrial Fibrillation
- OC Medical Center, Fountain Valley
- Community Memorial Hospital, Ventura
Recruiting
Ages 18 to 80 · All sexes · Updated Nov 3, 2026 · NCT07523750The Rhythm Evaluation for AntiCoagulaTion With Continuous Monitoring of Atrial Fibrillation
- University of Southern California - Keck School of Medicine, Los Angeles
- University of California Los Angeles (UCLA Health), Los Angeles
- UC Davis Health, Sacramento
- and 3 more
RecruitingPhase 3
Ages 22 to 85 · All sexes · Updated Nov 3, 2026 · NCT05836987A Study of VARIPULSE Catheter in Participants With Persistent Atrial Fibrillation Undergoing Pulmonary Vein and Superior Vena Cava Isolation
- Pacific Heart Institute Cedars Sinai Medical Center, Santa Monica
Recruiting
Ages 18 to 80 · All sexes · Updated Nov 3, 2026 · NCT07527299Conquer-AF Protocol for Redo Ablation Procedures in Recurrent Paroxysmal and Persistent Atrial Fibrillation Using the Sphere-9 Catheter and Affera Ablation System (Conquer-AF)
- Scripps Green Hospital, La Jolla
- Cedars Sinai Medical Center, Los Angeles
Recruiting
Ages 18 and older · All sexes · Updated Oct 19, 2026 · NCT07298473BoxX-NoAF Clinical Trial
- Sharp Memorial Hospital, San Diego
- Adventist Health St. Helena, St. Helena
RecruitingHealthy volunteers welcome
Ages 65 and older · All sexes · Updated Oct 7, 2026 · NCT06989775Volunteers to Investigate Best Results for Ablation and Novel Therapies for Atrial Fibrillation
- University of California, San Francisco, San Francisco
RecruitingObservational study
Ages 18 and older · All sexes · Updated Oct 5, 2026 · NCT05504356Disrupted Sleep and Concurrent Ectopy or Atrial Fibrillation
- UCSF Medical Center at Parnassus, San Francisco
Recruiting
Ages 21 and older · All sexes · Updated Oct 2, 2026 · NCT07220525Digitally Rendered Interventions And Knowledge To Limit Ethanol-Associated Atrial Fibrillation Severity
- UCSF Medical Center at Parnassus, San Francisco
Recruiting
Ages 21 and older · All sexes · Updated Oct 2, 2026 · NCT06995391Real-world Experience of Catheter Ablation for the Treatment of Arrhythmias
- Keck School of Medicine, Los Angeles
- Community Memorial Hospital, Ventura
RecruitingObservational study
Ages 18 and older · All sexes · Updated Sep 22, 2026 · NCT04088071The Fourth Left Atrial Appendage Occlusion Study
- Memorial Health Services, Fountain Valley
- Cedars-Sinai Medical Center, Los Angeles
- Southern California Permanente Medical Group, Pasadena
- and 1 more
Recruiting
Ages 18 and older · All sexes · Updated Sep 18, 2026 · NCT05963698CellFX® Nanosecond Pulsed Field Ablation (nsPFA)™ Cardiac Surgery Clamp System to Treat Atrial Fibrillation
- Adventist Heart Institute: Adventist Health St. Helena, St. Helena
Recruiting
Ages 18 to 85 · All sexes · Updated Sep 9, 2026 · NCT06959121Coherent Sine Burst Electroporation (CSE) Ablation System US IDE Study for Patients With Atrial Fibrillation
- UCSD, San Diego
Recruiting
Ages 18 to 80 · All sexes · Updated Jul 15, 2026 · NCT06784466PVI Alone Versus PVI Plus PWI and SVCI With PFA
- University of California, San Francisco, San Francisco
Recruiting
Ages 18 and older · All sexes · Updated Jul 14, 2026 · NCT07405359Study to evaLuate the effIcacy and Safety of abeLacimab in High-risk Patients With Atrial Fibrillation Who Have Been Deemed Unsuitable for Oral antiCoagulation (LILAC-TIMI 76)
- Anthos Investigative Site 9929, Huntington Beach
- Anthos Investigative Site 9959, Imperial
- Anthos Investigative Site 9921, Lancaster
- and 7 more
RecruitingPhase 3
Ages 65 and older · All sexes · Updated Jul 13, 2026 · NCT05712200Tracking Results of Ablations to Combat AF Registry Generation 2
- Loma Linda University Medical Center, Loma Linda
- Adventist Heart Institute (St. Helena Hospital), St. Helena
RecruitingObservational study
Ages 18 and older · All sexes · Updated Jun 29, 2026 · NCT05111015Anticoagulation for New-Onset Post-Operative Atrial Fibrillation After CABG
- University of Southern California, Los Angeles
- Cedars-Sinai Medical Center, Los Angeles
- Stanford University, Stanford
RecruitingPhase 3
Ages 18 and older · All sexes · Updated Jun 26, 2026 · NCT04045665Anticoagulation in ICH Survivors for Stroke Prevention and Recovery
- Mercy San Juan Medical Center, Carmichael
- Arrowhead Regional Medical Center, Colton
- Kaiser Permanente Fontana Medical Center, Fontana
- and 16 more
RecruitingPhase 3
Ages 18 and older · All sexes · Updated May 8, 2026 · NCT03907046Incidence of Long-TeRm Atrial Fibrillation After Acute Illness
- Sulpizio Cardiovascular Center, La Jolla
RecruitingObservational study
Ages 18 and older · All sexes · Updated Feb 25, 2026 · NCT07434674The Dynamics of Human Atrial Fibrillation
- Stanford University, Stanford
RecruitingObservational study
Ages 22 to 80 · All sexes · Updated Feb 17, 2026 · NCT05366361Anticoagulation for Stroke Prevention In Patients With Recent Episodes of Atrial Fibrillation Occurring Transiently With Stress
- Cedars-Sinai Medical Center, Los Angeles
RecruitingPhase 4
Ages 55 and older · All sexes · Updated Jan 12, 2026 · NCT03968393Full-Avoidance vs. Permissive/Regulated Drinking & Outcomes On Fibrillation
- UCSF Medical Center at Parnassus, San Francisco
- UCSF Medical Center at Mission Bay, San Francisco
RecruitingMentions payment for participants
Ages 21 and older · All sexes · Updated Dec 23, 2025 · NCT06754176Machine Learning in Atrial Fibrillation
- Stanford University, Stanford
RecruitingObservational study
Ages 22 to 80 · All sexes · Updated Nov 14, 2025 · NCT05371405COMparison of Physiological Algorithms for Real-time Evaluation of Atrial Fibrillation
- Stanford University, Stanford
RecruitingObservational study
Ages 21 to 90 · All sexes · Updated Nov 14, 2025 · NCT02997254The Long-term Safety and Effectiveness Evaluation of the QDOT MICRO System Use in Conjunction With VISITAG SURPOINT Module for the Treatment of Symptomatic Drug Refractory Paroxysmal Atrial Fibrillation.
- Community Memorial Health System, Ventura
RecruitingObservational study
Ages 18 and older · All sexes · Updated Oct 31, 2025 · NCT06324201Esophageal Temperature During PVI Using Q-DOT Micro
- Cedars-Sinai Smidt Heart Institute, Los Angeles
Recruiting
Ages 18 and older · All sexes · Updated Oct 28, 2025 · NCT06392932From ClinicalTrials.gov, data retrieved Nov 15, 2026. Each study sets its own eligibility; the study team decides who can join.