Abstract
Timolol 0,5%/ dorzolamide 2% fixed combination versus timolol 0,5%/ pilocarpine 2% fixed combination in primary open-angle glaucoma or ocular hypertensive patients
- Z Kliniki Okulistyki Akademii Medycznej im. Ludwika Rydygiera w Bydgoszczy
- Z Samodzielnego Publicznego Klinicznego Szpitala Okulistycznego w Warszawie
- Z Centrum Medycznego Kształcenia Podyplomowego w Warszawie
- Pharmaceutical Research Network, Limited Liability Company, Charleston, South Carolina, USA
- Department of Ophthalmology, University of South Carolina, Columbia, South Carolina, USA
Purpose
To establish the efficacy and safety of timolol 0,5% / dorzolamide 2% fixed combination versus timolol 0,5% / pilocarpine 2% fixed combination, each given twice daily, in primary open-angle glaucoma and ocular hypertensive patients.
Material and methods
In this prospective, multicentred, double-masked trial, 37 patients were treated twice daily with timolol for 4 weeks. Then, they were randomized to one of the treatment medications for 6 weeks, after which they were treated with timolol again for 2 weeks before placed on the opposite treatment medication for 6 weeks.
Results
A total of 36 patients completed the trial. The mean baseline intraocular pressure (IOP) was 22,3± 3,7 mmHg. Following 6 weeks of treatment, the mean decrease of IOP was 18,0± 2,2 mmHg for timolol / dorzolamide combination and 17,4± 2,0 for timolol / pilocarpine combination. The mean diurnal curve IOP was 18,1± 2,2 mmHg for timolol / dorzolamide group and 16,7 ± 1,9 mmHg for timolol / pilocarpine group. These differences were statistically significant. Statistically more patients reported ocular pain and diminished vision during use of the timolol / pilocarpine combination.
Conclusions
This study suggest that timolol 0,5% / pilocarpine 2% fixed combination can provide at least similar efficacious reduction in IOP as timolol 0,5 % / dorzolamide 2% fixed combination in patients with primary open-angle glaucoma and ocular hypertension.
Keywords
open angle glaucoma, timolol, dorzolamide, pilokarpine