Diabetic Retinopathy and Sickle Trait
To more clearly ascertain the relationship between ocular manifestations of sickle cell disease and diabetes, specifically; whether the presence of sickle cell trait exacerbates the disease progression of diabetic retinopathy.
Sickle Cell Trait
|Study Design:||Observational Model: Case-Only
Time Perspective: Prospective
|Official Title:||Diabetic Retinopathy and Sickle Cell Trait|
- We aim to screen African-American diabetic patients with retinopathy to ascertain whether sickle trait is present, and if so whether there is increased severity of diabetic retinopathy in the group with sickle trait. [ Time Frame: One Year ] [ Designated as safety issue: No ]
|Study Start Date:||May 2008|
|Study Completion Date:||July 2010|
|Primary Completion Date:||July 2010 (Final data collection date for primary outcome measure)|
The objective of this research study is to evaluate the relationship between sickle cell trait and the progression of diabetic retinopathy. People with diabetes have high blood sugar that damages small blood vessels. Damage to the blood vessels that supply the retina in the back of the eye is called diabetic retinopathy. Diabetic retinopathy is worse in African-Americans with diabetes, with earlier and more severe disease progression and common complications including vitreous hemorrhage - where these blood vessels in the eye leak - and retinal detachment - the separation of the nerves of the retina from the back of the eye which may lead to blindness. One explanation for this increased severity of diabetes in African-Americans is the presence of sickle cell disease, or even just sickle trait, which causes damage to red blood cells and blood vessels under conditions of stress; like low oxygen levels, or hyperglycemic acidosis.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00720317
|United States, South Carolina|
|Medical University of South Carolina, Storm Eye Institute|
|Charleston, South Carolina, United States, 29425|
|Principal Investigator:||Esther M. Bowie, MD||Medical University of South Carolina, Storm Eye Institute|