The International Collaborative Exfoliation Syndrome Treatment Study
Status:
Unknown status
Trial end date:
2008-12-01
Target enrollment:
Participant gender:
Summary
Purpose: To determine the efficacy of treatment with latanoprost in combination with
pilocarpine versus timolol or timolol/dorzolamide fixed combination (Timoptic or Cosopt) in
eyes with XFS and elevated intraocular pressure (IOP).
Methods: This is a randomized, open-label study to test the hypothesis that improving both
pressure-dependent and pressure-independent aqueous outflow and minimizing iridolenticular
friction will interfere with the progression of XFS, allow improvement in trabecular
function, and be more effective over time than simply reducing aqueous formation.
Randomization was performed across the centers, per patient rather than per eye to avoid any
crossover effect caused by aqueous suppressants. Group I was treated with latanoprost and
pilocarpine, both in the evening, and Group II with Timolol or Cosopt b.i.d. Only one eye per
patient was randomized. Patients were followed for 2 years with assessment of IOP, visual
field progression, tonographic outflow coefficient and trabecular pigmentation at the 6:00
and 12:00 position.