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OpenTrials
Completed

NCT Number: NCT03882021

High-Density (HD) Wave Mapping in Subjects With Atrial Fibrillation as a Predictor of Recurrence After a Single Ablation Procedure Using a PVI-Only Strategy

The aim is to use the Advisor™ HD Grid Mapping Catheter, Sensor Enabled™ to characterize the atrial substrate and develop a model for predicting recurrence rates after a single procedure using a PVI only approach and a contact catheter.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Kepler Universitätsklinikum GmbH, Linz, UPR AUS, Austria

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About this study

This clinical investigation is intended to characterize the left atrial substrate using the Advisor™ HD Grid Mapping Catheter, Sensor Enabled™ in an HD Wave configuration and correlate different factors with 12-month success after a single ablation procedure using a pulmonary vein isolation (PVI) approach without further substrate modification.

This is a post-market, single-arm, multi-center, prospective interventional study of the Advisor™ HD Grid Mapping Catheter, Sensor Enabled™. This study is aimed at determining correlations between pre-ablation mapping characteristics and outcomes after catheter ablation of atrial fibrillation.

Approximately 300 subjects at up to 20 sites worldwide will be enrolled.

Subjects will be followed until they complete their 12-month visit. Clinical Investigation visits will occur at Baseline (confirmation of eligibility), Index Procedure, 3 months, 6 months, and 12 months. Endpoints will be analyzed when all subjects have completed their 12-month follow up visits.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Documented atrial fibrillation with planned endocardial ablation procedure
  • Age 18 years or older
  • Able and willing to provide written informed consent prior to any clinical investigation related procedure
  • Able and willing to complete all required study procedures through 12 months

Exclusion criteria

  • Long-standing persistent atrial fibrillation defined as continuous AF greater than 12 months in duration
  • Previous ablation or surgery in the left atria
  • Implanted left atrial appendage occluder
  • Implanted mitral or tricuspid valve replacement
  • Implanted cardiac defibrillator (ICD)
  • Participation in another clinical investigation that may confound the results of this study
  • Pregnant or nursing
  • Presence of other anatomic or comorbid conditions, or other medical, social, or psychological conditions that, in the investigator's opinion, could limit the subject's ability to participate in the clinical investigation or to comply with follow-up requirements, or impact the scientific soundness of the clinical investigation results.
  • Life expectancy less than 12 months

Treatment and study plan

A specific electrophysiology mapping protocol is applicable with the GRID catheter.

Procedure

The procedure will be done according to a standard ablation approach. During the electrophysiology study, additional mapping data will be collected to support the study endpoints using the GRID catheter.

Primary outcomes

  1. Percentage of Subjects With One-year Success

    Time frame: the end of the 3-month blanking period to 12 months following a single ablation procedure

    Defined as freedom from atrial fibrillation, atrial flutter and atrial tachycardia after removal from the antiarrhythmic drug therapy as assesses from the end of the 3-month blanking period to 12 months following a single ablation procedure. Kaplan-Meier survival analysis will be conducted to analyze time-to-event variables.

Other outcomes

  1. Percentage of Subjects With Freedom From Symptomatic AF/AFL/AT After Removal From Antiarrhythmic Drug Therapy

    Time frame: the end of the 3-month blanking period to 12 months after initial ablation procedure

    Percentage of participants with freedom from symptomatic atrial fibrillation/atrial flutter/atrial tachycardia rafter removal from AADs. Kaplan-Meier survival analysis was conducted to analyze time-to-event variables.

  2. Percentage of Subjects With Single Procedure Clinical Success

    Time frame: the end of the 3-month blanking period to 12 months following the initial ablation procedure

    Single procedure clinical success was defined as freedom from symptomatic atrial fibrillation, atrial flutter and atrial tachycardia without a new or increased dose of class I or III antiarrhythmic drug. Kaplan-Meier survival analysis was conducted to analyze time-to-event variables.

  3. Percentage of Subjects With Freedom From AF/AFL/AT

    Time frame: the end of the 3-month blanking period to 12 months following the initial ablation procedure

    Freedom from atrial fibrillation, atrial flutter and atrial tachycardia recurrence. Kaplan-Meier survival analysis was conducted to analyze time-to-event variables.

  4. Number of Subjects With Acute Procedural Success

    Time frame: During procedure, an average of 160 minutes

    Defined as electrical isolation of all pulmonary veins. The data will be summarized with subject counts and percentages/rates.

  5. Number of Subjects With Arrhythmia Recurrence

    Time frame: 12 months

    Rates of recurrence not due to PVI gap for subjects with repeat electrophysiology studies. The data will be summarized with subject counts and percentages/rates.

  6. Left Atrium (LA) Information: LA Volume (LAV)

    Time frame: Baseline

    LA volume will be summarized with the mean with standard deviation.

  7. Left Atrium (LA) Information: LA Diameter (LAD)

    Time frame: Baseline

    LA diameter will be summarized with the mean with standard deviation.

  8. Reportable Adverse Events

    Time frame: 12 months

    Number of adverse events, including any device-, procedure-, or death-related events (serious or non-serious).

Sponsors and collaborators

Lead sponsor

Abbott Medical Devices

Industry

Registry information

Acronym: WAVE-MAP AF

Important dates

Study start
2019
Primary completion
2021
Study completion
2022
First posted
Mar 20, 2019
Registry last updated
Sep 19, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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