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NCT04178720 · ClinicalTrials.gov registry record · NA
Clinical Evaluation of a Daily Wear Monthly Replacement Silicone Hydrogel Lens
A NA study, sponsored by Alcon Research.
- Completed
- Registry status
- NA
- Development phase
- 119
- Enrollment target
NCT04178720: Completed NA study, sponsored by Alcon Research.
NCT04178720 is a NA study that has completed, run by Alcon Research. The registered enrollment target is 119 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (92% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT04178720, a NA study, has completed, sponsored by Alcon Research.
- COMPLETED
- Registry status
- NA
- Development phase
- 119 participants
- Enrollment target
Study Summary
The purpose of this clinical study is to evaluate the safety and effectiveness of an investigational soft contact lens compared to a commercially available soft contact lens when worn for daily wear and replaced monthly.
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 lenses
- DEVICE Lehfilcon A contact lenses
- DEVICE CLEAR CARE
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 119 participants |
| Start Date | 2020-01-28 |
| Est. Completion | 2020-06-10 |
| Phase | NA |
What the finished NCT04178720 record still lists
NCT04178720 is an interventional study that assigns participants to a tested intervention. The registered 119 participants enrollment target is mid-sized for trials with a published cap, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (92% lower).
The record links to 0 conditions, and to 3 interventions - of which Comfilcon A contact lenses is the first listed.
NCT04178720 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT04178720 about?
NCT04178720 is a clinical study titled "Clinical Evaluation of a Daily Wear Monthly Replacement Silicone Hydrogel Lens". The purpose of this clinical study is to evaluate the safety and effectiveness of an investigational soft contact lens compared to a commercially available soft contact lens when worn for daily wear and replaced monthly.
What is the current status of trial NCT04178720?
This trial is currently completed. It is a NA study. The enrollment target is 119 participants. The study started on 2020-01-28. Estimated completion is 2020-06-10.
What interventions are being tested in trial NCT04178720?
The interventions under investigation include: Comfilcon A contact lenses (DEVICE), Lehfilcon A contact lenses (DEVICE), CLEAR CARE (DEVICE).
Who is sponsoring clinical trial NCT04178720?
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 NCT04178720's enrollment target sits among peer trials
119 803rd of 2000 higher than 1,198 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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