Clinical trial NCT00961649: Safety and Efficacy of Brinzolamide/Brimonidine Fixed Combination
Official title: Safety and IOP-Lowering Efficacy of Brinzolamide/Brimonidine Fixed Combination Ophthalmic Suspension in Patients With Open-Angle Glaucoma and/or Ocular Hypertension
Study type: INTERVENTIONAL
Overall status: TERMINATED
Phase: PHASE2
Conditions: Open-Angle Glaucoma
Ocular Hypertension
Keywords: Open-Angle Glaucoma
Ocular Hypertension
Brinzolamide
Brimonidine
Intraocular Pressure
Lead sponsor: Alcon Research
Sponsor class: INDUSTRY
First posted: 2009-08-19
Enrollment: 195
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: The purpose of this study was to compare the safety and intraocular pressure (IOP)-lowering efficacy of a new fixed combination of brinzolamide/brimonidine (Brinz/Brim) to:

* its individual components (Brinz and Brim), and
* the concomitant administration of Brinz and Brim (Brinz+Brim).

Detailed description: This study consisted of 5 visits conducted during 2 sequential phases: the screening/eligibility phase, which included a screening visit and 2 eligibility visits, and the treatment phase, which included 2 on-therapy visits conducted at Week 2 and Week 6 (or early exit). A washout period based on previous ocular medication preceded Eligibility Visit 1. Subjects who met all inclusion/exclusion criteria at both eligibility visits were randomized to 1 of 4 study drug groups for 6 weeks. Study drug instillation began the morning after the second eligibility visit. The study was terminated by the sponsor out of caution due to microgel formation in the Brinz/Brim formulation. 13 remaining active subjects were discontinued. Further analysis revealed that neither the drop size nor the concentration of the active ingredients was affected.

Eligibility criteria: Inclusion Criteria:

* Sign Informed Consent document.
* Diagnosis of open-angle glaucoma or ocular hypertension, with mean intraocular pressure within protocol-specified range at eligibility visit/s.
* Other protocol-specified inclusion criteria may apply.

Exclusion Criteria:

* Females of childbearing potential if pregnant, lactating, or not using highly effective birth control measures.
* Any form of glaucoma other than open-angle glaucoma.
* Severe central vision loss in either eye.
* Chronic, recurrent, or severe inflammatory eye disease.
* Ocular trauma within the preceding 6 months.
* Ocular infection or ocular inflammation within the preceding 3 months.
* Clinically significant or progressive retinal disease such as retinal degeneration, diabetic retinopathy, or retinal detachment.
* Best-corrected visual acuity score worse than 55 letters using the Early Treatment Diabetic Retinopathy Study chart.
* Other ocular pathology (including severe dry eye) that may, in the opinion of the Investigator, preclude the administration of study product.
* Ocular surgery within the preceding 6 months.
* Ocular laser surgery within the preceding 3 months.
* Any abnormality preventing reliable applanation tonometry.
* Any other conditions, including severe illness, which could make the patient, in the opinion of the Investigator, unsuitable for the study.
* Other protocol-specified exclusion criteria may apply.

Primary outcomes:
measure: Mean Change in Intraocular Pressure (IOP) From Baseline to Each of the Assessment Time Points (8 AM, + 2 Hrs, + 7 Hrs, and + 9 Hrs) at Week 6 - Brinz/Brim, Brinz, Brim
timeFrame: Baseline, Week 6
measure: Mean Change in Intraocular Pressure (IOP) From Baseline to Each of the Assessment Time Points (8 AM, +2 Hrs, +7 Hrs, and +9 Hrs) at Week 6 - Brinz/Brim, Brinz+Brim
timeFrame: Baseline, Week 6
Secondary outcomes:
Other outcomes:
Locations:
Study officials:
affiliation: Alcon Research
name: James Teague, BS, Sr. Clinical Manager
role: STUDY_DIRECTOR
References: