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PURPOSE: To determine whether intraocular pressure (IOP) lowering with fixed-combination brinzolamide/brimonidine (BBFC) adjunctive to a prostaglandin analog (PGA) was superior to that of vehicle+PGA in patients with open-angle glaucoma or ocular hypertension who were inadequately controlled with PGA monotherapy METHODS: This 6-week, multicenter, randomized, double-masked, parallel-group trial was conducted at 30 clinical sites in the United States between October 2013 and May 2014. Eligible patients were adults with open-angle glaucoma or ocular hypertension and with mean IOP ≥21 and <32 mm Hg, whereas receiving an open-label PGA (latanoprost, bimatoprost, or travoprost). Patients instilled a PGA once-daily in a run-in phase before randomization to masked BBFC or vehicle adjunctive treatment. Masked treatments were instilled 3 times daily for 6 weeks, and patients continued once-daily use of their PGA. The primary efficacy end point was the between-group difference in mean diurnal IOP (average of 0800, 1000, 1500, and 1700 hours time points) at week 6. RESULTS: At week 6, mean diurnal IOP with BBFC+PGA was lower than with vehicle+PGA (17.1±0.4 mm Hg vs 20.5±0.4 mm Hg; between-group difference, -3.4±0.5 mm Hg; P<0.0001; 95% confidence interval, -4.5 to -2.4 mm Hg). BBFC+PGA reduced mean diurnal IOP by 5.7 mm Hg (25%) from the baseline IOP achieved with PGA monotherapy. CONCLUSIONS: Therapy with BBFC produced an additive IOP-lowering effect compared with a PGA alone or in conjunction with vehicle. BBFC may provide an effective treatment option for patients receiving PGA monotherapy who require additional IOP reduction.
Department of Ophthalmology, SUNY Upstate Medical University, Syracuse, NY, USA.
Full article11.13.5 Other (Part of: 11 Medical treatment > 11.13 Combination therapy)
11.4 Prostaglandins (Part of: 11 Medical treatment)