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NCT00909090 · ClinicalTrials.gov registry record · NA
Macular Pigment and Glare Disability
A NA study, sponsored by University of Georgia.
- Completed
- Registry status
- NA
- Development phase
- 109
- Enrollment target
NCT00909090: Completed NA study, sponsored by University of Georgia.
NCT00909090 is a NA study that has completed, run by University of Georgia. The registered enrollment target is 109 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
NCT00909090, a NA study, has completed, sponsored by University of Georgia.
- COMPLETED
- Registry status
- NA
- Development phase
- 109 participants
- Enrollment target
Study Summary
The purpose of this study is: I. To measure MP optical density (MPOD) in two groups (experimental and placebo) of 50 subjects each (N = 100), during an Lutein + Zeaxanthin supplementation period of 12 months. II. To test the hypothesis that increases in MP (via 12 mg daily Lutein + Zeaxanthin supplementation) will result in significantly improved visual performance under disability glare conditions. III. To test the hypothesis that increases in MP (via 12 mg daily L + Z supplementation) will result in significantly reduced photostress recovery times. IV. To test the hypothesis that increases in MP (via 12 mg daily L + Z supplementation) will result in improved contrast enhancement.
Primary Outcome
optical density of macular pigment layer of the neural retina at 30-minutes of retinal eccentricity
Interventions
- DIETARY_SUPPLEMENT 12 mg Lutein + Zeaxanthin
- DIETARY_SUPPLEMENT Visually identical placebo
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 109 participants |
| Start Date | 2009-05 |
| Est. Completion | 2012-12 |
| Phase | NA |
What the finished NCT00909090 record still lists
NCT00909090 is an interventional study that assigns participants to a tested intervention. The registered 109 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 2 interventions - of which 12 mg Lutein + Zeaxanthin is the first listed.
NCT00909090 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00909090 about?
NCT00909090 is a clinical study titled "Macular Pigment and Glare Disability". The purpose of this study is: I. To measure MP optical density (MPOD) in two groups (experimental and placebo) of 50 subjects each (N = 100), during an Lutein + Zeaxanthin supplementation period of 12 months. II. To test the hypothesis that increases in MP (via 12 mg daily Lutein + Zeaxanthin supp...
What is the current status of trial NCT00909090?
This trial is currently completed. It is a NA study. The enrollment target is 109 participants. The study started on 2009-05. Estimated completion is 2012-12.
What interventions are being tested in trial NCT00909090?
The interventions under investigation include: 12 mg Lutein + Zeaxanthin (DIETARY_SUPPLEMENT), Visually identical placebo (DIETARY_SUPPLEMENT).
Who is sponsoring clinical trial NCT00909090?
This trial is sponsored by University of Georgia, which has 59 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00909090's enrollment target sits among peer trials
109 825th of 2000 higher than 1,176 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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