Effect of SIMBRINZA® Suspension as an Added Therapy to TRAVATAN Z®

This study was divided into 2 sequential phases. The Screening/Eligibility Phase included one Screening Visit and two Eligibility Visits, during which subjects washed out of all other intraocular pressure (IOP)-lowering medications and dosed with TRAVATAN Z®, 1 drop instilled in each eye once daily for 28 days. Subjects who met all inclusion/exclusion criteria were randomized at the second Eligibility Visit. The Treatment Phase consisted of two on-therapy visits (Week 2 and Week 6).

• Brinzolamide 1%/brimonidine 0.2% ophthalmic suspension (Drug), also known as SIMBRINZA®
• Vehicle (Drug): Inactive ingredients used as a placebo comparator
• Travoprost 0.004% ophthalmic solution (Drug), also known as TRAVATAN Z®

Primary outcomes

• Mean Diurnal Intraocular Pressure (IOP) at Week 6 [Week 6]: Diurnal IOP was defined as the average of the four timepoints measured (8 AM, 10 AM, 3 PM, and 5 PM). IOP (fluid pressure inside the eye) was assessed using Goldmann applanation tonometry and reported in millimeters mercury (mmHg). One eye was chosen as the study eye and only data for the study eye were used for the analyses. A higher IOP can be a greater risk factor for developing glaucoma or glaucoma progression (leading to optic nerve damage).

Secondary outcomes

• Mean Diurnal IOP Change From Baseline to Week 6 [Baseline, Week 6]: Baseline IOP was defined as the average of the timepoint-matched IOP measurements at Eligibility 1 and Eligibility 2 Visits. Diurnal IOP change was defined as the average of the four changes from baseline (timepoints 8 AM, 10 AM, 3 PM, and 5 PM). IOP (fluid pressure inside the eye) was assessed using Goldmann applanation tonometry and reported in millimeters mercury (mmHg). One eye was chosen as the study eye and only data for the study eye were used for the analyses. A more negative change from baseline indicates a greater improvement, i.e., a reduction of IOP.
• Mean Diurnal IOP Percentage Change From Baseline to Week 6 [Baseline, Week 6]: Baseline IOP was defined as the average of the timepoint-matched IOP measurements at Eligibility 1 and Eligibility 2 Visits. Diurnal IOP Percentage Change was defined as the average of the four percent changes from baseline (timepoints 8 AM, 10 AM, 3 PM, and 5 PM). IOP (fluid pressure inside the eye) was assessed using Goldmann applanation tonometry and reported in millimeters mercury (mmHg). One eye was chosen as the study eye and only data for the study eye were used for the analyses. A more negative percent change from baseline indicates a greater amount of improvement, i.e., a reduction of IOP.

Sex: All, ages: 18 Years to any

Inclusion Criteria:

* Diagnosis of open angle glaucoma or ocular hypertension;
* Mean IOP measurements in at least 1 eye (study eye) of ≥ 21 mmHg and <32 mmHg at 8 AM while on travoprost monotherapy at 2 consecutive visits (Eligibility 1 and Eligibility 2);
* Able to understand and sign Informed Consent form;
* Other protocol-defined inclusion criteria may apply.

Exclusion Criteria:

* Women of childbearing potential who are pregnant, breastfeeding, or do not agree to use an adequate birth control method throughout the study;
* Any form of glaucoma other than open angle glaucoma or ocular hypertension;
* Severe central visual field loss;
* Chronic, recurrent, or severe inflammatory eye disease;
* Ocular trauma within the past 6 months;
* Ocular infection or ocular inflammation within the past 3 months;
* Best-corrected visual acuity score worse than approximately 20/80 Snellen;
* Eye surgery within the past 6 months;
* Any condition, including severe illness, which would make the subject unsuitable for the study in the opinion of the Investigator;
* Use of any additional topical or systemic ocular hypertensive medication during the study;
* Patients who, in the opinion of the Investigator, cannot discontinue all IOP-lowering ocular medication(s) per the appropriate washout schedule prior to Eligibility 1 Visit;
* Other protocol-defined exclusion criteria may apply.

Participant flow

Outcome results

• Mean Diurnal Intraocular Pressure (IOP) at Week 6 (Primary), Mean, mmHg: SIMBRINZA 17.44 +/- 2.838; Vehicle 20.34 +/- 3.702
• Mean Diurnal IOP Change From Baseline to Week 6 (Secondary), Mean, mmHg: SIMBRINZA -5.10 +/- 2.637; Vehicle -2.22 +/- 2.925
• Mean Diurnal IOP Percentage Change From Baseline to Week 6 (Secondary), Mean, percent change: SIMBRINZA -22.27 +/- 10.842; Vehicle -9.57 +/- 12.923

Adverse events

Time frame: Adverse events (AEs) were collected for the duration of the study, Oct 2013-Apr 2014. This analysis population includes all consented subjects. Adverse events are reported as pre-treatment and treatment-emergent.

Serious adverse events by term

Other adverse events by term

• Steve Burmaster, PhD, Study director, Alcon Research