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NCT04403542 · ClinicalTrials.gov registry record · NA
Pilot Clinical Performance of a Silicone Hydrogel Lens for Up to Six Nights of Extended Wear
A NA study, sponsored by Alcon Research.
- Completed
- Registry status
- NA
- Development phase
- 36
- Enrollment target
NCT04403542: Completed NA study, sponsored by Alcon Research.
NCT04403542 is a NA study that has completed, run by Alcon Research. The registered enrollment target is 36 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (97% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT04403542, a NA study, has completed, sponsored by Alcon Research.
- COMPLETED
- Registry status
- NA
- Development phase
- 36 participants
- Enrollment target
Study Summary
The purpose of this clinical study is to evaluate the on-eye performance of an investigational soft contact lens compared to a commercially available soft contact lens when worn continuously for up to 1 week.
Primary Outcome
Visual acuity (VA) was assessed for each eye individually with study lenses in place at a distance of 6 meters using a letter chart. VA was collected in Snellen and converted to logarithm minimum angle of resolution (logMAR). A logMAR value of 0 equates to 20/20 Snellen visual acuity (normal distance eyesight), with a lower logMAR value indicating better visual acuity. No formal hypothesis testing was planned.
Interventions
- DEVICE Comfilcon A contact lens
- DEVICE Lehfilcon A contact lens
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 36 participants |
| Start Date | 2020-08-03 |
| Est. Completion | 2020-08-31 |
| Phase | NA |
What the finished NCT04403542 record still lists
NCT04403542 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 36 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (97% lower).
The record links to 0 conditions, and to 2 interventions - of which Comfilcon A contact lens is the first listed.
NCT04403542 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT04403542 about?
NCT04403542 is a clinical study titled "Pilot Clinical Performance of a Silicone Hydrogel Lens for Up to Six Nights of Extended Wear". The purpose of this clinical study is to evaluate the on-eye performance of an investigational soft contact lens compared to a commercially available soft contact lens when worn continuously for up to 1 week.
What is the current status of trial NCT04403542?
This trial is currently completed. It is a NA study. The enrollment target is 36 participants. The study started on 2020-08-03. Estimated completion is 2020-08-31.
What interventions are being tested in trial NCT04403542?
The interventions under investigation include: Comfilcon A contact lens (DEVICE), Lehfilcon A contact lens (DEVICE).
Who is sponsoring clinical trial NCT04403542?
This trial is sponsored by Alcon Research, which has 275 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT04403542's enrollment target sits among peer trials
36 1541st of 2000 higher than 437 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA 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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