Absorption of Brimonidine Ophthalmic Solution in the Aqueous Humor of Cataract Patients

Summary

The purpose of this study is to obtain and assay human aqueous samples following pre-operative dosing with 0.1% Brimonidine Purite™ (pH 7.8) or with 0.15% Brimonidine Purite® (pH 7.2) from patients undergoing routine cataract surgery in order to evaluate the aqueous concentration of the two formulations.Study hypothesis: The aqueous humor concentration 45 minutes following dosing of 0.1% Brimonidine Purite™ (pH 7.8) is comparable with 0.15% Brimonidine Purite® (pH 7.2)

Timeline

Start

2005-02

Primary completion

—

Completion

2005-12

Publications

• Background PK-02-P027 Relative ocular bioavailability of 0.2% Alphagan and 0.15% Brimonidine-BAK to that of 0.15% Alphagan P in female albino rabbits. Allergan 2002.
• Background PK-02-P041 Comparison of ocular and systemic bioavailability of three 0.10% brimonidine purite formulations to that of 0.15% Alphagan P in albino rabbits. Allergan 2002.

Drugs

Indications