The efficacy of unoprostone isopropyl as an adjunct to topical beta-blocker in patients with open angle glaucoma: a-6-month study.

Leelachaikul, Yupin; Euswas, Ataya

The efficacy of unoprostone isopropyl as an adjunct to topical beta-blocker in patients with open angle glaucoma: a-6-month study.

Date

2005-11-10

Authors

Leelachaikul, Yupin

Euswas, Ataya

Abstract

OBJECTIVES: To assess the efficacy and safety of unoprostone isopropyl as an adjunctive treatment to topical beta-blocker in patients with primary open angle glaucoma (POAG). STUDY DESIGN: This was a prospective, open-label clinical study. MATERIAL AND METHOD: A total of 44 eyes of 22 eligible patients whose intraocular pressure (IOP) was inadequately controlled by topical beta-blocker were enrolled. Inclusion criteria consisted of patients with primary open angle glaucoma who either had IOP measurements > or = 22 mmHg while on topical beta-blocker monotherapy or had IOP measurements > or = 18 mmHg while on dual therapy (topical beta-blocker and a second drug of a different class which was to be discontinued prior to the study to allow washing out of its effects). INTERVENTION: Baseline IOP, pupil size, blood pressure and pulse rate were initially measured; the patients were then examined at 2nd, 4th, 8th, 12th, 18th and 24th weeks of following commencement of topical unoprostone isopropyl therapy (given twice daily). MAIN OUTCOME MEASURES: IOP pupil size, blood pressure and pulse rate were measured and were compared to baseline values. RESULTS: In 44 eyes of 22 eligible patients, unoprostone isopropyl resulted in a statistically significant IOP reduction of 24.6% (p < 0.02). The mean systolic blood pressure decreased from 132.79 +/- 22.11 mmHg (range 100-180 mmHg) at baseline to 125.77 +/- 18.40 mmHg (range 80-160 mmHg) at 24th week after unoprostone isopropyl administration. This reduction was statistically significant (p = 0.002) but was unlikely to have clinical importance. Both mean diastolic blood pressure (p = 0.344), pulse rate (p = 0.306), and pupil diameter (p = 0.107) were not significantly affected. CONCLUSION: Topical unoprostone isopropyl beneficially provides additive IOP lowering effect to topical beta-blocker in patients with primary open angle glaucoma. No serious systemic side effects were found in the present study.

Description

Chotmaihet Thangphaet.

Citation

Leelachaikul Y, Euswas A. The efficacy of unoprostone isopropyl as an adjunct to topical beta-blocker in patients with open angle glaucoma: a-6-month study. Journal of the Medical Association of Thailand. 2005 Nov; 88 Suppl 9(): S100-4