Long-term Topical Cyclosporine for Atopic Keratoconjunctivitis
Atopic keratoconjunctivitis (AKC) is a rare type of ocular allergy that is often associated with eczema. Over time, the complications from this disease process lead to loss of vision due to continual scarring of the corneal surface. The pathophysiology of AKC has not been fully elucidated, and the triggers are still unknown.
Corticosteroids are very effective in controlling the acute symptoms of AKC. However, two thirds of patients managed with a combination of oral antihistamine, topical mast cell stabilizer, and intermittent topical steroid regimen eventually developed significant keratopathy and vision loss. Additionally, there are many side effects of corticosteroids, including local immunosuppression, cataract formation, and increased risk of glaucoma.
Cyclosporin A is an immunomodulator that specifically inhibits T lymphocytes by blocking the expression of the interleukin-2 receptor. It also blocks the release of inflammatory mediators from mast cells and eosinophils. Cyclosporin has no known side effects except for burning upon instillation, and safe to use over long-term . The investigators have demonstrated that a 0.05% ophthalmic emulsion of cyclosporine has been shown to be effective at improving the ocular signs and symptoms of AKC over short-term. However, the long-term efficacy of cyclosporine A in slowing the natural history of AKC and possible steroid sparing effects have not been assessed. The investigators hypothesize that cyclosporine A can be used as a mainstay treatment of AKC to control signs and symptoms over a long period of time and also prevent the progression of this disease.
|Study Design:||Allocation: Non-Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||Long-term Results of Topical Cyclosporine 0.05% in the Treatment of Atopic Keratoconjunctivitis|
- Ocular symptoms and signs [ Time Frame: 12 months ] [ Designated as safety issue: No ]
- Corticosteroid usage [ Time Frame: 12 months ] [ Designated as safety issue: No ]
|Study Start Date:||August 2007|
|Study Completion Date:||September 2009|
|Primary Completion Date:||September 2009 (Final data collection date for primary outcome measure)|
Patients with atopic keratoconjunctivitis were started with cyclosporine 0.05% ophthalmic eye drops, starting with 1 drop in both eyes 6 times daily for first month, followed by 1 drop in both eyes 4 times daily for the following month, then adjusted by clinician as needed for appropriate disease control.
Cyclosporine 0.05% ophthalmic solution, 6 times in both eyes daily for first month, then 4 times in both eyes daily for next month, then dosage was adjusted based on clinical disease by investigator
Other Name: Restasis
|United States, Maryland|
|Johns Hopkins Hospital - Wilmer Eye Institute|
|Baltimore, Maryland, United States, 21287|
|Principal Investigator:||Esen K Akpek, MD||Johns Hopkins Hospital - Wilmer Eye Institute|