Study of Eye Tissue for Sarcoidosis
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|ClinicalTrials.gov Identifier: NCT00001278|
Recruitment Status : Completed
First Posted : December 10, 2002
Last Update Posted : March 4, 2008
The purpose of this study is to develop a relatively simple, accurate method of diagnosing sarcoidosis. Sarcoidosis is a disease in which granulomas (nodules of inflamed tissue) develop in various organs, such as the lungs, liver, skin and eyes. Disease symptoms vary depending on the tissues involved. Many patients develop uveitis (eye inflammation). Tissue biopsy-often a costly and difficult invasive procedure-is currently the only definitive diagnostic test for sarcoidosis. Other tests, such as blood and urine tests, do not provide definitive results.
Patients with uveitis that is 1) known to be due to sarcoidosis; 2) suspected to be due to sarcoidosis based on specific diagnostic criteria; and 3) known not to be due to sarcoidosis may be enrolled in this study. Participants will undergo an eye examination, blood tests, chest X-ray, and skin test for tuberculosis and other infections. Small tissue samples from the conjunctiva (the thin lining covering the outside of the eye and the inside of the eyelid) and the lacrimal (tear) gland will be taken after the eye is numbed with anesthetic drops and injection.
Investigators will examine and compare levels of certain proteins in the biopsied tissues from the three patient groups to see if elevated levels of these substances may indicate granuloma formation. Development of a new, relatively simple diagnostic test for sarcoidosis based on these findings may permit doctors to start appropriate therapy earlier in the course of disease without invasive biopsy.
|Condition or disease|
|Study Type :||Observational|
|Estimated Enrollment :||30 participants|
|Official Title:||Immunologic Assay of Conjunctiva and Lacrimal Gland for Sarcoidosis|
|Study Start Date :||May 1991|
|Estimated Study Completion Date :||April 2001|
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00001278
|United States, Maryland|
|National Eye Institute (NEI)|
|Bethesda, Maryland, United States, 20892|