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Three Month Efficacy/Safety Study With a 3-Month Safety Extension of Brinzolamide 1%/Brimonidine 0.2% vs. Brinzolamide 1% or Brimonidine 0.2%

This study has been completed.
Information provided by (Responsible Party):
Alcon Research Identifier:
First received: February 15, 2011
Last updated: May 17, 2013
Last verified: May 2013
The purpose of this study was to evaluate the safety and efficacy of a new ophthalmic suspension (Brinz/Brim) in lowering intraocular pressure (IOP) relative to its individual active components in subjects with open-angle glaucoma and/or ocular hypertension.

Condition Intervention Phase
Open-Angle Glaucoma Ocular Hypertension Drug: Brinzolamide 1%/brimonidine tartrate 0.2% ophthalmic suspension Drug: Brinzolamide ophthalmic suspension, 1% Drug: Brimonidine tartrate ophthalmic solution, 0.2% Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Three-Month, Randomized, Double-Masked, Parallel-Group Study With a Planned Three-Month Safety Extension of the Efficacy and Safety of a Fixed Combination of Brinzolamide 1%/Brimonidine 0.2% Compared to Brinzolamide 1% and Brimonidine 0.2% All Dosed Three Times Daily in Patients With Open-Angle Glaucoma and/or Ocular Hypertension

Resource links provided by NLM:

Further study details as provided by Alcon Research:

Primary Outcome Measures:
  • Mean Intraocular Pressure (IOP) at Each Assessment Timepoint (8 AM, +2 h, +7 h, and +9 h) at Month 3 [ Time Frame: Month 3 ]
    The study drug was instilled at 8 AM and 3 PM (approximately 15 minutes after conducting the IOP measurements). Intraocular pressure was measured by Goldmann applanation tonometry. One eye from each patient was chosen as the study eye and only data for the study eye were used for the efficacy analysis. A higher IOP can be a greater risk factor for developing glaucoma or glaucoma progression (leading to optic nerve damage).

Enrollment: 1062
Study Start Date: March 2011
Study Completion Date: June 2012
Primary Completion Date: June 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Brinz/Brim
Brinzolamide 1%/brimonidine tartrate 0.2% ophthalmic suspension, 1 drop instilled in each eye 3 times a day for 3 months
Drug: Brinzolamide 1%/brimonidine tartrate 0.2% ophthalmic suspension
Active Comparator: Brinzolamide
Brinzolamide ophthalmic suspension, 1%, 1 drop instilled in each eye 3 times a day for 3 months
Drug: Brinzolamide ophthalmic suspension, 1%
Active Comparator: Brimonidine
Brimonidine tartrate ophthalmic solution, 0.2%, 1 drop instilled in each eye 3 times a day for 3 months
Drug: Brimonidine tartrate ophthalmic solution, 0.2%

Detailed Description:
This study consisted of 7 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 4 on-therapy visits conducted at Week 2, Week 6, Month 3, and Month 6. 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 3 study drug groups. The study was designed to evaluate the efficacy and safety of Brinzolamide/Brimonidine over a 3-month period, with an additional 3 months of study drug exposure intended to provide further safety data.

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

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 subject, in the opinion of the Investigator, unsuitable for the study.
  • Other protocol-specified exclusion criteria may apply.
  Contacts and Locations
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Please refer to this study by its identifier: NCT01297920

Sponsors and Collaborators
Alcon Research
Study Director: James Teague, BS, Sr. Clinical Manager Alcon Research
  More Information

Responsible Party: Alcon Research Identifier: NCT01297920     History of Changes
Other Study ID Numbers: C-10-039
Study First Received: February 15, 2011
Results First Received: May 17, 2013
Last Updated: May 17, 2013

Keywords provided by Alcon Research:
Open-Angle Glaucoma
Ocular Hypertension
Intraocular pressure

Additional relevant MeSH terms:
Glaucoma, Open-Angle
Ocular Hypertension
Vascular Diseases
Cardiovascular Diseases
Eye Diseases
Ophthalmic Solutions
Brimonidine Tartrate
Pharmaceutical Solutions
Antihypertensive Agents
Adrenergic alpha-2 Receptor Agonists
Adrenergic alpha-Agonists
Adrenergic Agonists
Adrenergic Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Physiological Effects of Drugs
Carbonic Anhydrase Inhibitors
Enzyme Inhibitors processed this record on August 22, 2017