Randomized Study of New Formulation Ophthalmic Cysteamine Hydrochloride for Corneal Cystine Accumulation in Patients With Cystinosis
OBJECTIVES: I. Determine the proportion of patients with cystinosis who experience a serious adverse effect when treated with a new formulation of cysteamine hydrochloride for corneal cystine accumulation.
II. Determine the proportion of patients with a reduction in corneal crystal density of 1.00 unit when treated with this regimen.
|Study Design:||Primary Purpose: Treatment|
|Study Start Date:||December 1999|
|Estimated Study Completion Date:||February 2001|
PROTOCOL OUTLINE: This is a randomized, multicenter study Patients are randomized to receive the current formulation of cysteamine hydrochloride as drops in one eye and the new formulation of cysteamine hydrochloride as drops in the other eye.
Patients receive the two formulations of cysteamine hydrochloride in their assigned eyes every hour during waking hours daily for 6 months (safety study) or for 1 year (efficacy study).
|Study Chair:||Edward F. Lemanowicz||Sigma Tau Pharmaceuticals, Inc.|