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NCT01454843 · ClinicalTrials.gov registry record · Phase 4
LASIK Using the Alcon Allegretto Wavefront-Guided Excimer Laser vs AMO Visx Wavefront-Guided Excimer Laser
A Phase 4 study, sponsored by Stanford University.
- Completed
- Registry status
- Phase 4
- Development phase
- 60
- Enrollment target
NCT01454843: Completed Phase 4 study, sponsored by Stanford University.
NCT01454843 is a Phase 4 study that has completed, run by Stanford University. The registered enrollment target is 60 participants, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (88% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT01454843, a Phase 4 study, has completed, sponsored by Stanford University.
- COMPLETED
- Registry status
- Phase 4
- Development phase
- 60 participants
- Enrollment target
Study Summary
The purpose of the study is to compare the results of LASIK surgery when using Alcon Allegretto wavefront-guided excimer laser system compared to AMO Visx Custom wavefront-guided excimer laser system in patients with nearsightedness with and without astigmatism.
Primary Outcome
Efficacy measures uncorrected visual acuity following the LASIK surgery. We will record how many eyes see 20/40, 20/30, 20/25, 20/20, 20/16, 20/12.5 and 20/10 after the surgery without glasses or contact lenses. We are measuring how well patients see after the surgery without glasses or contact lenses.
Interventions
- PROCEDURE Wavefront-guided LASIK - Allegretto
- PROCEDURE Wavefront-guided LASIK - AMO
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 60 participants |
| Start Date | 2009-04-01 |
| Est. Completion | 2012-06-23 |
| Phase | Phase 4 |
What the finished NCT01454843 record still lists
NCT01454843 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 60 participants, a relatively small participant target, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (88% lower).
The record links to 0 conditions, and to 2 interventions - of which Wavefront-guided LASIK - Allegretto is the first listed.
NCT01454843 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT01454843 about?
NCT01454843 is a clinical study titled "LASIK Using the Alcon Allegretto Wavefront-Guided Excimer Laser vs AMO Visx Wavefront-Guided Excimer Laser". The purpose of the study is to compare the results of LASIK surgery when using Alcon Allegretto wavefront-guided excimer laser system compared to AMO Visx Custom wavefront-guided excimer laser system in patients with nearsightedness with and without astigmatism.
What is the current status of trial NCT01454843?
This trial is currently completed. It is a Phase 4 study. The enrollment target is 60 participants. The study started on 2009-04-01. Estimated completion is 2012-06-23.
What interventions are being tested in trial NCT01454843?
The interventions under investigation include: Wavefront-guided LASIK - Allegretto (PROCEDURE), Wavefront-guided LASIK - AMO (PROCEDURE).
Who is sponsoring clinical trial NCT01454843?
This trial is sponsored by Stanford University, which has 1,744 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT01454843's enrollment target sits among peer trials
60 1125th of 2000 higher than 799 of 2,000 other Phase 4 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 4 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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