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NCT00001617 · ClinicalTrials.gov registry record
Test of QLS Device to Detect Early Cataracts
A clinical trial of Healthy and Cataract, sponsored by National Eye Institute (NEI).
- Completed
- Registry status
- 10
- Enrollment target
- 1
- Study location
NCT00001617 is a study of Healthy and Cataract that has completed, run by National Eye Institute (NEI). The registered enrollment target is 10 participants, below the 647-participant average among 1,090 other Healthy trials with a reported enrollment target (98% lower). The trial reports 1 study location across 1 state.
The verdict
NCT00001617, a study of Healthy and Cataract, has completed, sponsored by National Eye Institute (NEI).
- COMPLETED
- Registry status
- 10 participants
- Enrollment target
- 1
- Study location
Study Summary
This study will test the reliability of an instrument called the Quasi Elastic Laser Scattering Device (QLS) in detecting early changes in cataract formation. Surgery is currently the only treatment for cataracts. Many laboratories, however, are researching drugs to reverse, delay or prevent cataract formation. Anti-cataract drugs presumably would be most effective given early in the course of disease. When clinical trials of these drugs are begun, dependable and standardized methods for documenting and monitoring lens opacities will be needed to test their effectiveness. The QLS was designed to detect the earliest molecular changes in cataract development. This study will evaluate the usefulness and reliability of this instrument in measuring these changes. Normal volunteers and patients with cataracts in this study will have a standard eye examination, including a vision test and eye pressure measurement. The pupils will be dilated for QLS testing and for examination of the retina. Photographs of the retina may be taken. The QLS test uses a very dim laser light similar to that used to scan grocery items in the supermarket. The laser beam is projected into the lens of the eye, and the scattered light is collected and analyzed to determine normal and abnormal molecular interactions in the lens. Two measurements will be done for each eye. The test will be repeated in 6 months to determine reproducibility of the system.
Study Locations (1)
Maryland
- National Eye Institute (NEI) - Bethesda
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 10 participants |
| Start Date | 1997-09 |
| Est. Completion | 2000-08 |
Interested in This Trial?
Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT00001617
The ClinicalTrials.gov registry entry for NCT00001617 describes a study currently listed as completed, categorized as an unspecified phase. The registered enrollment target is 10 participants, a figure that helps gauge the scale of data the investigators plan to collect, below the 647-participant average among 1,090 other Healthy trials with a reported enrollment target (98% lower). The listed sponsor is National Eye Institute (NEI), which has 221 total studies on file at ClinicalTrials.gov.
The record links to 2 conditions, with Healthy appearing as the primary indexed condition, and to 0 interventions.
NCT00001617 reports 1 study location spanning 1 distinct geographic area - top geographies include Maryland.
Frequently Asked Questions
What is clinical trial NCT00001617 about?
NCT00001617 is a clinical study titled "Test of QLS Device to Detect Early Cataracts". This study will test the reliability of an instrument called the Quasi Elastic Laser Scattering Device (QLS) in detecting early changes in cataract formation. Surgery is currently the only treatment for cataracts. Many laboratories, however, are researching drugs to reverse, delay or prevent catara...
What is the current status of trial NCT00001617?
This trial is currently completed. The enrollment target is 10 participants. The study started on 1997-09. Estimated completion is 2000-08.
What conditions does trial NCT00001617 study?
This clinical trial studies the following conditions: Healthy, Cataract.
Who is sponsoring clinical trial NCT00001617?
This trial is sponsored by National Eye Institute (NEI), which has 221 total clinical trials registered on ClinicalTrials.gov.
Where is trial NCT00001617 being conducted?
This trial has 1 study location across Maryland. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
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