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NCT00056771 · ClinicalTrials.gov registry record
Clinical and Genetic Studies of Families With Congenital or Hereditary Cataracts
A clinical trial of Cataract, sponsored by National Eye Institute (NEI).
- Completed
- Registry status
- 3,432
- Enrollment target
- 5
- Study locations
NCT00056771: Completed study of Cataract, sponsored by National Eye Institute (NEI).
NCT00056771 is a study of Cataract that has completed, run by National Eye Institute (NEI). The registered enrollment target is 3,432 participants, above the 187-participant average among 83 other Cataract trials with a reported enrollment target (1735% higher). The trial reports 5 study locations across 2 states. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00056771, a study of Cataract, has completed, sponsored by National Eye Institute (NEI).
- COMPLETED
- Registry status
- 3,432 participants
- Enrollment target
- 5
- Study locations
Study Summary
This study will explore the clinical and hereditary (genetic) features of inherited cataracts. A cataract is a clouding of the eye lens, which focuses light on the back of the eye. When the lens becomes cloudy and does not let light through, vision is impaired. Cataracts may be associated with vision problems alone, or with other problems, such as changes in facial appearance or skin problems. A better understanding of these genetic conditions may help in the development of better diagnostic tests. Patients with inherited cataracts and their family members may be eligible for this study. Participants will be drawn from patients enrolled in other studies of inherited cataracts at the NEI and collaborating clinics. Participants will undergo the following tests and procedures: * Medical and surgical history; * Verification of diagnosis; * Construction of a family tree regarding familial vision problems; * Complete eye examination, including dilation of the pupils and photography of the lens, tests of color vision and field of vision, and of the ability to see in the dark; * Blood sample collection (20 ml, or 4 teaspoons) for genetic studies of hereditary cataracts.
Conditions Studied
Study Locations (5)
Other
- Zhongshan Ophthalmic Center - Guangzhou
- Aravind Eye Hospital - Maduri
- University of Parma - Parma
- Centre for Excellence in Molecular Biology - Lahore
Maryland
- National Institutes of Health Clinical Center, 9000 Rockville Pike - Bethesda
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 3,432 participants |
| Start Date | 2003-03-18 |
| Est. Completion | 2016-05-25 |
What the finished NCT00056771 record still lists
NCT00056771 is an observational study that tracks outcomes without assigning an intervention. Its 3,432 participants enrollment target places it among the larger protocols in the corpus, above the 187-participant average among 83 other Cataract trials with a reported enrollment target (1735% higher).
The record links to 1 condition, with Cataract appearing as the primary indexed condition, and to 0 interventions.
NCT00056771 lists 5 locations in 2 states (Other, Maryland).
Frequently Asked Questions
What is clinical trial NCT00056771 about?
NCT00056771 is a clinical study titled "Clinical and Genetic Studies of Families With Congenital or Hereditary Cataracts". This study will explore the clinical and hereditary (genetic) features of inherited cataracts. A cataract is a clouding of the eye lens, which focuses light on the back of the eye. When the lens becomes cloudy and does not let light through, vision is impaired. Cataracts may be associated with visio...
What is the current status of trial NCT00056771?
This trial is currently completed. The enrollment target is 3,432 participants. The study started on 2003-03-18. Estimated completion is 2016-05-25.
What conditions does trial NCT00056771 study?
This clinical trial studies the following conditions: Cataract.
Who is sponsoring clinical trial NCT00056771?
This trial is sponsored by National Eye Institute (NEI), which has 221 total clinical trials registered on ClinicalTrials.gov.
Where is trial NCT00056771 being conducted?
This trial has 5 study locations across Maryland. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
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Where NCT00056771's enrollment target sits among peer trials
3,432 1st of 83 higher than 83 of 83 other Cataract trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Cataract 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.
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