Twenty-four-hour intraocular pressure control with the travoprost/timolol maleate fixed combination compared with travoprost when both are dosed in the evening in primary open-angle glaucoma


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Abstract

Objective:To evaluate the 24 h efficacy and safety of the travoprost/timolol maleate fixed combination (TTFC) versus travoprost when both are dosed in the evening in primary open-angle glaucoma patients.Methods:Prospective, double-masked, crossover, active-controlled, randomised 24 h comparison. After a 6 week medicine-free period, patients were randomised to either TTFC or travoprost for 8 weeks and were then switched to the opposite treatment for another 8 weeks. At the end of the washout and treatment periods, a 24 h pressure curve was performed.Results:Thirty-two patients completed the study. The TTFC group demonstrated a lower absolute intraocular pressure level (2.4 mm Hg) for the 24 h curve and at all time points, compared with travoprost (p≤0.047). The pressure reduction from untreated baseline was significantly different between treatments for all time points (p = 0.018). The mean 24 h pressure fluctuation was lower with TTFC (3.0 mm Hg) compared with travoprost (4.0 mm Hg, p = 0.001). No statistical difference existed between the two treatment groups for any adverse event (p>0.05).Conclusions:This study suggests that when both drugs are dosed in the evening the TTFC provides improved intraocular pressure reduction, compared with travoprost, over the 24 h curve and for each individual time point in primary open-angle glaucoma patients.

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