Comparison of Two Pulse Field Ablation Systems for AF Ablation
COBRA
Comparative Efficacy, Safety, and Efficiency of SYSTEM 1 Versus SYSTEM 2 Pulse Field Ablation Systems for Atrial Fibrillation Ablation Randomized Controlled Trial
Sponsor study identifier
interventional
120
1 country
1
Study Start
July 10, 2026
Actual (reported)Primary Completion
August 30, 2028
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
Study Completion
May 30, 2031
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
This study randomizes patients undergoing PFA for A Fib to one of two standard care PFA systems. The patient will have an ICM placed to continuously monitor their heart rhythm. Follow up visits will occur until Month 36, and will include 12-lead ECG, ICM interrogation, AE updates, and QOL surveys.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
May 30, 2031
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
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Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
April 27, 2026
Actual (reported)July 10, 2026
Actual (reported)October 20, 2026
Actual (reported)August 30, 2028
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
May 30, 2031
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
Number of participants free of AF, AFl, or AT recurrence
AF/AFl/AT Recurrence
12 months
Number of participants free of AF, AFl, or AT recurrence
36 months
Number of participants free of repeat ablation
12 months
Pulse Field System A through a standard ablation catheter
Pulse Field System A through a standard ablation catheter
Pulse Field Ablation
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Allegheny General Hospital
Pittsburgh, Pennsylvania, 15212, United States
Amit Thosani, MD
Allegheny Health Network
First Submitted
April 27, 2026
First Posted
October 20, 2026
Study Start
July 10, 2026
Actual (reported)Primary Completion
August 30, 2028
Contact the study team to confirm eligibility.
Planned date reported by the registry; this milestone is not confirmed as achieved.
Study Completion
May 30, 2031
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
Last Updated
October 20, 2026
Record last verified: 2026-04
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Source: ClinicalTrials.gov.
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