Artificial Intelligence Mapping and Ablation of Non-Pulmonary Vein Electrical Drivers of AF Study
IMPRoVED-AF
1 other identifier
interventional
423
2 countries
13
Brief Summary
The goal of this clinical trial is to compare the use of the Vektor Computational ECG Mapping System (vMap®) with pulmonary vein isolation (PVI), to using PVI alone, to treat Atrial Fibrillation (AF) in adults. Participants will have a 50/50 or 1 out of 2 chance of being placed in the treatment or control arm. The control arm of the study involves PVI alone for ablation procedure(s). The treatment arm involves the use of vMap mapping in addition to PVI to plan ablation procedure(s).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Jun 2025
Typical duration for not_applicable
13 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 8, 2025
CompletedFirst Posted
Study publicly available on registry
April 20, 2025
CompletedStudy Start
First participant enrolled
June 27, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 1, 2027
March 16, 2026
March 1, 2026
2.3 years
April 8, 2025
March 12, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Freedom from AF
The achievement of freedom from AF for subjects on or off antiarrhythmic drug (AAD) therapy at 12 months.
12 months post procedure
Secondary Outcomes (6)
Freedom from AF and AT
12 months post procedure
Total Procedure Time
Interventional Procedure
Total vMap® Mapping Time
Interventional Procedure
AF Burden
12 months post procedure
Spontaneous AF Termination
Interventional Procedure
- +1 more secondary outcomes
Other Outcomes (1)
Total Fluorscopy Time
1Interventional Procedure
Study Arms (2)
vMap®+PVI
EXPERIMENTALSubjects in this arm will be treated with the use of the vMap® system in addition to pulmonary vein isolation.
PVI Alone
ACTIVE COMPARATORSubjects in this arm will be treated with pulmonary vein isolation alone.
Interventions
Subjects will receive treatment for Atrial Fibrillation with Pulmonary Vein Isolation per standard of care.
Subjects will receive treatment for Atrial Fibrillation with the use of the vMap® system and Pulmonary Vein Isolation.
Eligibility Criteria
You may qualify if:
- Subjects diagnosed with persistent (not longstanding) AF or recurrent AF, as defined for this study.
- Subject has a recent 12-lead electrogram data of AF (including baseline, pacing and clinical arrhythmia) recorded on the electrogram recording system (e.g., Bard, Boston-Scientific, St. Paul, MN or Prucka, GE Medical) or standalone ECG system (e.g., GE Muse, Minnesota, or CardioCard (Nasiff, NY) in digitized format.
- The following data elements can be abstracted from the patient medical records or confirmed and documented prior to the scheduled procedure (to be inputted in vMap®):
- Atrial fibrillation type
- Atrial characteristics: geometry (normal, left and/or right atrial enlargement), Utah classification, prior ablation modality (e.g., radiofrequency, cryoablation, pulsed field ablation), prior ablation lesion location(s).
- Subject is ≥ 22 years of age at time of enrollment/consent.
- Subject is indicated to undergo an ablation procedure at the medical discretion of the Investigator.
- Subject is able and willing to comply with the protocol requirements, has been informed of the nature of the study,
You may not qualify if:
- Subjects with arrhythmias other than persistent or recurring AF as defined for this study, including long-standing persistent atrial fibrillation (persistent AF lasting ≥ 1 year from diagnosis).
- Inability to obtain ECG prior to or during the clinical ablation procedure; or unacceptable ECG data quality such as low ECG signal-to-noise ratio or lack of ECG data in one or more leads.
- Subjects who are participating in another clinical investigation with an investigational drug or device at the time of enrollment or planned participation at any time during this clinical investigation.
- Subjects who have a known or suspected medical condition that, in the opinion of the Investigator, may put the subject at risk for participation in this clinical investigation.
- Subjects who are pregnant as confirmed by the institution's standard pre-surgery practice.
- Subject has had prior PVI and all four pulmonary veins are confirmed to be isolated based on voltage readings during the study index procedure.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Vektor Medicallead
- Veranex Switzerland SAcollaborator
- Veranexcollaborator
Study Sites (13)
Arrhythmia Research Group - St. Bernards
Jonesboro, Arkansas, 72401, United States
BayCare Health System
Clearwater, Florida, 33759, United States
Baptist Health Jacksonville
Jacksonville, Florida, 32207, United States
USF Health
Tampa, Florida, 33606, United States
Piedmont Heart of Athens
Athens, Georgia, 30606, United States
Piedmont Heart Institute
Atlanta, Georgia, 30309, United States
Indiana University
Indianapolis, Indiana, 46202, United States
Baptist Health Lexignton
Lexington, Kentucky, 40503, United States
Westchester Medical Center
Valhalla, New York, 10595, United States
OhioHealth
Columbus, Ohio, 43202, United States
University of Toledo Medical Center
Toledo, Ohio, 43614, United States
Penn Presbyterian
Philadelphia, Pennsylvania, 19104-4238, United States
German Heart Center
Munich, 80636, Germany
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 8, 2025
First Posted
April 20, 2025
Study Start
June 27, 2025
Primary Completion (Estimated)
October 1, 2027
Study Completion (Estimated)
December 1, 2027
Last Updated
March 16, 2026
Record last verified: 2026-03