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The use of dorzolamide and pilocarpine as adjunctive therapy to timolol in patients with elevated intraocular pressure. The Dorzolamide Additivity Study Group.

Abstract：

PURPOSE:To report the results of two studies on the use of dorzolamide as adjunctive therapy to timolol in patients with elevated intraocular pressure (IOP). In the larger study, the additive effect of dorzolamide administered twice daily also was compared with 2% pilocarpine. METHODS:Both studies were parallel, randomized, double-masked, placebo-controlled comparisons. In the pilot study, 32 patients received 0.5% timolol twice daily plus either 2% dorzolamide twice daily or placebo twice daily for 8 days. In the Pilocarpine Comparison Study, 261 patients received 0.5% timolol twice daily plus 0.7% dorzolamide twice daily, 2% dorzolamide twice daily, 2% pilocarpine four times daily, or placebo (twice daily or 4 times daily) for 2 weeks. Patients then entered a 6-month extension period and received 0.5% timolol twice daily plus either 0.7% dorzolamide twice daily, 2% dorzolamide twice daily, or 2% pilocarpine four times daily. RESULTS:In the pilot study, after 8 days, additional mean percent reductions in IOP for 2% dorzolamide and placebo were 17% and 3% at morning trough and 19% and 2% at peak, respectively. In the Pilocarpine Comparison Study, after 6 months, additional mean percent reductions in IOP (morning trough) were 9%, 13%, and 10% for 0.7% dorzolamide, 2% dorzolamide, and 2% pilocarpine, respectively. Patients receiving 2% pilocarpine had the highest rate of discontinuation due to a clinical adverse experience, and the use of dorzolamide was not associated with systemic side effects commonly observed with the use of oral carbonic anhydrase inhibitors. CONCLUSION:Dorzolamide twice daily was effective and well tolerated by the patients in these studies as adjunctive therapy to timolol. The larger study demonstrated that both concentrations of dorzolamide produce similar IOP-lowering effects to 2% pilocarpine.

journal_name

Ophthalmology

journal_title

Ophthalmology

authors

Strahlman ER,Vogel R,Tipping R,Clineschmidt CM

doi

10.1016/s0161-6420(96)30509-5

subject

Has Abstract

pub_date

1996-08-01 00:00:00

pages

1283-93

issue

eissn

0161-6420

issn

1549-4713

pii

S0161-6420(96)30509-5

journal_volume

103

pub_type

临床试验,杂志文章,多中心研究,随机对照试验

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The use of dorzolamide and pilocarpine as adjunctive therapy to timolol in patients with elevated intraocular pressure. The Dorzolamide Additivity Study Group.