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Active, not recruitingNCT06990048LEAFUpdated May 12, 2026

The Long-Term EVAR Assessment and Follow-Up (LEAF) Study for the AFX2 System

An observational study in Abdominal Aortic Aneurysm, sponsored by Endologix. Active, not recruiting at 1 site in United States. Per ClinicalTrials.gov, last updated 2026-05-12.

Sponsored by Endologix · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
2,000
Sex
All
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Study summary

This is an observational, retrospective, multicenter study to evaluate the performance of the AFX2 System using real world evidence from VQI-VISION.

Read the detailed description

Evaluate the clinical performance of the AFX2 System patients against other commercially available EVAR devices and evaluate the Type III endoleak occurrence in AFX2 System patients through 5 years.

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Conditions studied

  • Abdominal Aortic Aneurysm
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In context

Aortic Aneurysm, Abdominal

467 studies on the registry are indexed under Aortic Aneurysm, Abdominal; 99 are open to participants now.

This study's planned enrollment of 2,000 is above the median of 165 across 217 observational studies indexed under Aortic Aneurysm, Abdominal.

Browse Aortic Aneurysm, Abdominal studies →

Lead sponsor

Endologix is the lead sponsor of 25 studies on the registry; 2 are open to participants now.

Of its 11 completed or terminated interventional studies of FDA-regulated products, 9 (82%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Approximately 20,000 patient data will be extracted from approximately 900 sites participating in the VQI EVAR registry in the US. A minimum of 2000 AFX2 System patients will be included.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • All patients implanted with the AFX2 System or the 3 most commonly used comparator devices who underwent EVAR as their first abdominal aortic aneurysm repair in the VQI EVAR registry will be included in this study.

Exclusion criteria

Exclusion Criteria:

  • Ruptured AAA repair with the AFX2 or comparator device
  • Patients with AFX2 in AFX relining, or relined comparator grafts.
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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
2,000 participants (estimated)
Target follow-up
10 Years
Patient registry
Yes

Interventions

  • DeviceAFX2 System

    The AFX2 System comprises of the following: AFX2 Bifurcated Endograft System and delivery system AFX Vela Proxmal Endograft System and delivery system AFX Stand Alone Endograft System and delivery system

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What researchers measure

Primary outcomes

  1. Rates of AAA Rupture, Reintervention and Mortality

    Rate of the composite of AAA rupture, aortic-related reintervention, and morality through 5 years.

    Time frame: 5 Years

  2. Incidence of Endoleak

    Cummulative incidence of Type III endoleaks at 5 years.

    Time frame: 5 Years

Secondary outcomes

  1. Long Term Safety

    Rates of AAA rupture, aoritic-related reintervention, mortality, aneurysm related mortality, rate of imaging with CT, presence of untreated asymptomatic Type III endoleaks, occurrence of sac shrinkage, stability, and expansion \>5mm in diameter, and limb occlusion at 10 years.

    Time frame: 10 Years

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Study locations

1 site
  • The Dartmouth Institute
    Lebanon, New Hampshire 03756, United States
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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

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Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Sep 2023 (actual). Primary completion is estimated for May 2027, 44 months after the start.

Of 91 observational studies under Aortic Aneurysm, Abdominal, half reached primary completion within 48 months of starting (the median), counting those still running; a quarter within 24 and three quarters within 83. This study's planned 44 months is close to that.

How these figures are worked out, and which studies are left out of them.

Registered
May 12, 2025
First posted
May 25, 2025
StartActual
Sep 21, 2023
Primary completionEst.
May 2027
CompletionEst.
May 2027
Last update
May 12, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 12, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06990048
Lead sponsor
Endologix
Collaborators
Fivos
Responsible party
Sponsor
First posted
May 25, 2025
Start date
Sep 21, 2023
Primary completion
May 2027 (estimated)
Completion
May 2027 (estimated)
Last update
May 12, 2026

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in May 2026. You cannot join it, but the record below documents what was studied.

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