LEAF - Low Energy In Atrial Fibrillation
Low Energy in Atrial Fibrillation AF Phase IV Study in AT/AF Population Atrial Arrhythmias Prevention and Reduction With Low Energy Atrial Antitachycardia Pacemaker
3 other identifiers
interventional
237
0 countries
N/A
Brief Summary
The purpose of the study is to demonstrate the efficiency on AT / AF prevention and termination of a new algorithm contained in the Medtronic AT500 Antitachycardia device in patients with conventional pacemaker indications.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_4 atrial-fibrillation
Started Aug 2000
Typical duration for phase_4 atrial-fibrillation
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
Study Start
First participant enrolled
August 1, 2000
CompletedStudy Completion
Last participant's last visit for all outcomes
November 1, 2003
CompletedFirst Submitted
Initial submission to the registry
September 8, 2005
CompletedFirst Posted
Study publicly available on registry
September 12, 2005
CompletedJuly 3, 2025
January 1, 2018
September 8, 2005
June 30, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Demonstrate that AT 500 algorithms decrease AF Burden
Secondary Outcomes (5)
Characterize the efficiency of prevention and termination algorithms on the Quality of Life of patients
Characterize the correlation between symptoms and stored EGM's
Determine the total number of AF/AT episodes and observe the decrement of their occurrence frequency due to prevention algorithms.
Determine the number of Hospitalization, physician visits…: economical analyze
Analyze the episode onset mechanism
Interventions
Eligibility Criteria
You may qualify if:
- ACC/AHA Class I or II indication for dual chamber pacing and two symptomatic atrial fibrillation or flutter episodes in the three months prior to implant as well as ECG documentation of at least one episode in the prior year.
You may not qualify if:
- Patients with permanent/persistent AF, an indication for an implantable cardioverter defibrillator or class IV heart failure.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Medtronic Cardiac Rhythm and Heart Failurelead
- Medtroniccollaborator
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Kacet Salem, Prof.
University Hospital, Lille
- STUDY CHAIR
Mabo Philippe, Prof.
CHU Rennes,France
- STUDY CHAIR
Pisipia André, Dr.
Hopital St Joseph - Marseille - France
- STUDY CHAIR
Frank Robert, Dr.
CHU Pitié-Salpétrière - Paris - France
- STUDY CHAIR
Attuel Patrick, Dr.
Clinique Parly 2 - le Chesnay - France
- STUDY CHAIR
Aliot Etienne, Prof.
CHU Nancy - France
- STUDY CHAIR
le Heuzey Jean Yves, Prof.
HEGP Paris - France
- STUDY CHAIR
Davy Jean Marc, prof.
CHU Montpellier - France
- STUDY CHAIR
Defaye Pascal, Dr
CHU Grenoble - France
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- INDUSTRY
Study Record Dates
First Submitted
September 8, 2005
First Posted
September 12, 2005
Study Start
August 1, 2000
Study Completion
November 1, 2003
Last Updated
July 3, 2025
Record last verified: 2018-01