Genetic Factors in Age-Related Macular Degeneration
NCT00058695 · Status: TERMINATED · Type: OBSERVATIONAL · Enrollment: 477
Last updated 2018-02-14
Summary
This study will examine whether certain polymorphisms (small gene variances) predispose people to develop age-related macular degeneration (AMD). This eye condition affects people over 50 years of age and can cause permanent loss of central vision. The study will examine and compare the frequency of polymorphisms in patients with AMD to that of individuals without AMD. This information will help identify genetic risk factors for the AMD and may lead to the development of more effective treatments.
Patients 50 years of age and older with advanced AMD and healthy normal volunteers may be eligible for this study. All participants will provide an eye health history and will have 10 milliliters (2 teaspoons) of blood drawn from an arm vein. The DNA in the blood will be isolated and tested for certain genes that other research indicates are important in aging and age-related diseases. The normal and polymorphic gene sequences will be identified and compared in patients with AMD and control subjects to determine if any of the polymorphisms are related to development of AMD.
In addition, control subjects will have a routine eye examination, including dilation of the pupils for examination of the back of the eye.
...
Conditions
- Macular Degeneration
Sponsors & Collaborators
-
National Eye Institute (NEI)
lead NIH
Principal Investigators
-
Robert B Nussenblatt, M.D. · National Eye Institute (NEI)
Eligibility
- Min Age
- 50 Years
- Sex
- ALL
- Healthy Volunteers
- Yes
Timeline & Regulatory
- Start
- 2003-04-04
- Completion
- 2015-10-21
Countries
- United States
Study Locations
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