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24-Hour intraocular pressure control between travoprost/timolol fixed combination, latanoprost/ timolol fixed combination and standard timolol in primary open angle glaucoma and ocular hypertension.

Author(s): Pachimkul P, Yuttitham K, Thoophom P

Affiliation(s): Department of Ophthalmology, Rajavithi Hospital, College of Medicine, Rangsit University, Bangkok, Thailand. pongsakpachimkul@gmail.com

Publication date & source: 2011-03, J Med Assoc Thai., 94 Suppl 2:S81-7.

Publication type: Randomized Controlled Trial

OBJECTIVES: To evaluate the efficacy between Travoprost 0.004%/Timolol 0.5% fixed combination, Latanoprost 0.005%/ Timolol 0.5% fixed combination once a day in the morning and Timolol 0.5% twice a day in a 24-hour intraocular pressure control (IOP). MATERIAL AND METHOD: The patients with primary open angle glaucoma and ocular hypertension was subjected. After 2-4 weeks of washout period, patients with daytime IOP > or = 21 mmHg and < 36 mmHg were admitted to the hospital for 24-hour IOP monitoring every 3-hour interval starting from 9 am to 9 am the next day. The patients were randomly received Travoprost-Timolol fixed combination, Latanoprost-Timolol fixed combination once a day or Timolol twice a day in the studied eyes. Another 24-hour IOP monitoring was taken again 2 weeks later. RESULTS: 59 eyes from 32 patients were subjected. The mean initial IOP at 9 am was 21.6 mmHg. The mean reduction of IOP ranging from 1.6 to 7.3 mmHg for Travoprost-Timolol group, 1.5 to 8.2 mmHg for Latanoprost-Timolol group and 2.2 to 5.6 mmHg for Timolol group. All three groups produced statistically significant reduction (p < 0.05) in mean IOP at all test times except; at 3 am for the Travoprost-Timolol group; at 3 am, 12 midnight-and 6 pm in the Latanoprost-Timolol group; and at 3 am and 9 pm in the Timolol group. The effects of IOP reduction of the combination drugs were greatest between 9 am and 3 pm with the morning dose of both combinations. There was no statistically significant difference in mean IOP reduction at any test time between the 2 combination drug groups but they were both better than Timolol alone at 9 am and 3 pm. CONCLUSION: A fixed combination of Travoprost 0.004% and Timolol 0.5% is as effective as a fixed combination of Latanoprost 0.005% and Timolol 0.5% and are better than Timolol 0.5% in 24-hour IOP control.

Page last updated: 2011-12-09

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