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NCT00808340 · ClinicalTrials.gov registry record · NA
Comparison of Three Soft Bifocal Contact Lenses
A NA study, sponsored by Johnson & Johnson Vision Care.
- Completed
- Registry status
- NA
- Development phase
- 37
- Enrollment target
NCT00808340: Completed NA study, sponsored by Johnson & Johnson Vision Care.
NCT00808340 is a NA study that has completed, run by Johnson & Johnson Vision Care. The registered enrollment target is 37 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
NCT00808340, a NA study, has completed, sponsored by Johnson & Johnson Vision Care.
- COMPLETED
- Registry status
- NA
- Development phase
- 37 participants
- Enrollment target
Study Summary
The primary purpose of the study is to compare the performance of three soft bifocal contact lenses in terms of the vision provided by the lenses.
Primary Outcome
Tested with both eyes together in bright lighting, reading charts distant to the subject. This outcome is measured in logMAR units.LogMAR stands for the logarithm of the minimum angle of resolution. Ideal is 0.0 and represents 20/20 Snellen acuity. logMAR values \> 0.00 indicate vision poorer than the ideal and values \<0.00 indicate vision greater than the ideal.
Interventions
- DEVICE balafilcon A
- DEVICE senofilcon A production
- DEVICE senofilcon A test
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 37 participants |
| Start Date | 2008-11-01 |
| Est. Completion | 2008-12-01 |
| Phase | NA |
What the finished NCT00808340 record still lists
NCT00808340 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 37 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 3 interventions - of which balafilcon A is the first listed.
NCT00808340 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00808340 about?
NCT00808340 is a clinical study titled "Comparison of Three Soft Bifocal Contact Lenses". The primary purpose of the study is to compare the performance of three soft bifocal contact lenses in terms of the vision provided by the lenses.
What is the current status of trial NCT00808340?
This trial is currently completed. It is a NA study. The enrollment target is 37 participants. The study started on 2008-11-01. Estimated completion is 2008-12-01.
What interventions are being tested in trial NCT00808340?
The interventions under investigation include: balafilcon A (DEVICE), senofilcon A production (DEVICE), senofilcon A test (DEVICE).
Who is sponsoring clinical trial NCT00808340?
This trial is sponsored by Johnson & Johnson Vision Care, which has 142 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00808340's enrollment target sits among peer trials
37 1540th of 2000 higher than 460 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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