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Fixed Combination Brinzolamide 1%/Timolol 0.5% Versus Brinzolamide 1% + Timolol 0.5% in Open-Angle Glaucoma or Ocular Hypertension

Primary Purpose

Open-Angle Glaucoma, Ocular Hypertension

Status
Completed
Phase
Phase 3
Locations
Study Type
Interventional
Intervention
Brinzolamide 1% / Timolol 0.5% fixed combination ophthalmic suspension
Brinzolamide 1% ophthalmic suspension
Timolol 0.5% ophthalmic solution
Sponsored by
Alcon Research
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Open-Angle Glaucoma focused on measuring Glaucoma, Open-angle glaucoma, Ocular hypertension, OAG, OH

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Diagnosed with open angle glaucoma and/or ocular hypertension and not sufficiently responsive to monotherapy.
  • Meet qualifying IOP criteria in at least 1 eye, including 21-35 mmHg at the Eligibility visit.
  • Willing to sign an Informed Consent form.
  • Contact lens wearer who is willing to remove lenses before instillation of study medication and wait a minimum of 15 minutes following drug instillation before re-inserting the lenses.
  • Able to discontinue use of current IOP-lowering medications per the minimum washout period.
  • Other protocol-specific inclusion criteria may apply.

Exclusion Criteria:

  • Women of childbearing potential if pregnant, test positive for pregnancy at Screening/Enrollment visit, breastfeeding, or not in agreement to use adequate birth control methods to prevent pregnancy throughout the study.
  • Diagnosed with any form of glaucoma other than open-angle glaucoma and/or ocular hypertension.
  • Diagnosed with severe central visual field loss in either eye.
  • History of chronic, recurrent, or severe ocular infection, inflammatory eye disease in either eye.
  • History of ocular trauma within the past 6 months in either eye.
  • Current ocular infection or ocular inflammation within the past 3 months in either eye.
  • Ocular laser surgery within the past 3 months.
  • Intraocular surgery within the past 3 months.
  • Best-corrected visual acuity score worse than 55 ETDRS letters read (equivalent to approximately 20/80 Snellen, 0.60 logMAR or 0.25 decimal).
  • History of, or current clinically relevant or progressive retinal disease in either eye.
  • History of, or current other severe ocular pathology (including severe dry eye) in either eye, that would preclude the administration of a topical carbonic anhydrase inhibitor (CAI) or beta-blocker.
  • Any abnormality preventing reliable applanation tonometry.
  • History of, or current condition or disease that would preclude the safe administration of a topical beta blocker or topical beta-adrenergic blocking agent.
  • History of spontaneous or current hypoglycemia or uncontrolled diabetes.
  • History of severe or serious hypersensitivity to CAIs, beta-blockers, or to any components of the study medication.
  • Less than 30 days stable dosing regimen before the Screening Visit of any medications or substances administered by any route and used on a chronic basis that may have affected IOP.
  • Recent use of high-dose salicylate therapy.
  • Anticipated use of any additional topical or systemic ocular hypotensive medication during the study.
  • Not safely able to discontinue all glucocorticoid medications administered by any route.
  • Currently on therapy or have been on therapy with another investigational agent within 30 days prior to the Screening Visit.
  • History of, or current evidence of severe illness or any other conditions which would, in the opinion of the Investigator, make the subject unsuitable for the study.
  • Other protocol-specific exclusion criteria may apply.

Sites / Locations

    Arms of the Study

    Arm 1

    Arm 2

    Arm Type

    Experimental

    Active Comparator

    Arm Label

    AZARGA

    AZOPT + Timolol

    Arm Description

    Brinzolamide 1% / Timolol 0.5% fixed combination ophthalmic suspension, 1 drop in the affected eye(s) dosed twice daily (9AM and 9PM) for 8 weeks. Both eyes were dosed unless there was a potential safety issue to the patient in the opinion of the Investigator.

    Brinzolamide 1% ophthalmic suspension, 1 drop instilled in the affected eye(s), followed by Timolol 0.5% ophthalmic solution, 1 drop instilled in the affected eye(s). Approximately 10 minutes separated the 2 instillations. The study drugs were instilled twice daily (9AM and 9PM) for 8 weeks. Both eyes were dosed unless there was a potential safety issue to the patient in the opinion of the Investigator.

    Outcomes

    Primary Outcome Measures

    Mean Diurnal IOP Change From Baseline at Week 8
    Mean diurnal IOP change from baseline at Week 8 (ie, the subject IOP change from baseline averaged over the 9 AM, 11AM and 5 PM time points at Week 8) was measured by Goldmann applanation tonometry. One eye from each subject was chosen as the study eye, and only data for the study eye were used for the efficacy analysis. A higher IOP (fluid pressure inside the eye) can be a greater risk factor for developing glaucoma or glaucoma progression (leading to optic nerve damage). A more negative change indicates a greater improvement..

    Secondary Outcome Measures

    Mean IOP Change From Baseline at 9 AM
    Mean IOP change from baseline at 9 AM was measured by Goldmann applanation tonometry. One eye from each subject was chosen as the study eye, and only data for the study eye were used for the efficacy analysis. A higher IOP (fluid pressure inside the eye) can be a greater risk factor for developing glaucoma or glaucoma progression (leading to optic nerve damage). A more negative change indicates a greater improvement.
    Mean IOP Change From Baseline at 11 AM
    Mean IOP change from baseline at 11 AM was measured by Goldmann applanation tonometry. One eye from each subject was chosen as the study eye, and only data for the study eye were used for the efficacy analysis. A higher IOP (fluid pressure inside the eye) can be a greater risk factor for developing glaucoma or glaucoma progression (leading to optic nerve damage). A more negative change indicates a greater improvement.
    Mean IOP Change From Baseline (5 PM) at Week 8
    Mean IOP change from baseline (5 PM) at Week 8 was measured by Goldmann applanation tonometry. One eye from each subject was chosen as the study eye, and only data for the study eye were used for the efficacy analysis. A higher IOP (fluid pressure inside the eye) can be a greater risk factor for developing glaucoma or glaucoma progression (leading to optic nerve damage). A more negative change indicates a greater improvement.

    Full Information

    First Posted
    May 18, 2011
    Last Updated
    March 13, 2014
    Sponsor
    Alcon Research
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    1. Study Identification

    Unique Protocol Identification Number
    NCT01357616
    Brief Title
    Fixed Combination Brinzolamide 1%/Timolol 0.5% Versus Brinzolamide 1% + Timolol 0.5% in Open-Angle Glaucoma or Ocular Hypertension
    Official Title
    Comparison of Efficacy and Safety of Brinzolamide/Timolol Fixed Combination (AZARGA™) vs Brinzolamide (AZOPT®) and Timolol in Chinese Subjects With Open-Angle Glaucoma or Ocular Hypertension
    Study Type
    Interventional

    2. Study Status

    Record Verification Date
    March 2014
    Overall Recruitment Status
    Completed
    Study Start Date
    November 2010 (undefined)
    Primary Completion Date
    January 2013 (Actual)
    Study Completion Date
    January 2013 (Actual)

    3. Sponsor/Collaborators

    Responsible Party, by Official Title
    Sponsor
    Name of the Sponsor
    Alcon Research

    4. Oversight

    Data Monitoring Committee
    No

    5. Study Description

    Brief Summary
    The purpose of this study was to compare the intraocular pressure (IOP)-lowering efficacy and safety of AZARGA™ (Brinzolamide 1%/Timolol 0.5% Ophthalmic Suspension), dosed twice daily versus AZOPT® (Brinzolamide 1% Ophthalmic Suspension) and Timolol 0.5% Ophthalmic Solution, each dosed twice daily, in Chinese patients with open-angle glaucoma or ocular hypertension who were insufficiently responsive to monotherapy.
    Detailed Description
    The study consisted of 2 sequential phases. Phase I was the Screening/Eligibility Phase, with a Screening Visit followed by an Eligibility Visit. Phase II was the treatment phase and included Week 1, Week 2, Week 4, and Week 8 visits. Eligible subjects were randomized in a 1:1 ratio to receive Brinzolamide 1%/Timolol 0.5% or Brinzolamide 1% plus Timolol 0.5% two times a day for 8 weeks.

    6. Conditions and Keywords

    Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
    Open-Angle Glaucoma, Ocular Hypertension
    Keywords
    Glaucoma, Open-angle glaucoma, Ocular hypertension, OAG, OH

    7. Study Design

    Primary Purpose
    Treatment
    Study Phase
    Phase 3
    Interventional Study Model
    Parallel Assignment
    Masking
    Investigator
    Allocation
    Randomized
    Enrollment
    328 (Actual)

    8. Arms, Groups, and Interventions

    Arm Title
    AZARGA
    Arm Type
    Experimental
    Arm Description
    Brinzolamide 1% / Timolol 0.5% fixed combination ophthalmic suspension, 1 drop in the affected eye(s) dosed twice daily (9AM and 9PM) for 8 weeks. Both eyes were dosed unless there was a potential safety issue to the patient in the opinion of the Investigator.
    Arm Title
    AZOPT + Timolol
    Arm Type
    Active Comparator
    Arm Description
    Brinzolamide 1% ophthalmic suspension, 1 drop instilled in the affected eye(s), followed by Timolol 0.5% ophthalmic solution, 1 drop instilled in the affected eye(s). Approximately 10 minutes separated the 2 instillations. The study drugs were instilled twice daily (9AM and 9PM) for 8 weeks. Both eyes were dosed unless there was a potential safety issue to the patient in the opinion of the Investigator.
    Intervention Type
    Drug
    Intervention Name(s)
    Brinzolamide 1% / Timolol 0.5% fixed combination ophthalmic suspension
    Other Intervention Name(s)
    AZARGA™
    Intervention Type
    Drug
    Intervention Name(s)
    Brinzolamide 1% ophthalmic suspension
    Other Intervention Name(s)
    AZOPT®
    Intervention Type
    Drug
    Intervention Name(s)
    Timolol 0.5% ophthalmic solution
    Other Intervention Name(s)
    TIMOLOL
    Primary Outcome Measure Information:
    Title
    Mean Diurnal IOP Change From Baseline at Week 8
    Description
    Mean diurnal IOP change from baseline at Week 8 (ie, the subject IOP change from baseline averaged over the 9 AM, 11AM and 5 PM time points at Week 8) was measured by Goldmann applanation tonometry. One eye from each subject was chosen as the study eye, and only data for the study eye were used for the efficacy analysis. A higher IOP (fluid pressure inside the eye) can be a greater risk factor for developing glaucoma or glaucoma progression (leading to optic nerve damage). A more negative change indicates a greater improvement..
    Time Frame
    Baseline, Week 8
    Secondary Outcome Measure Information:
    Title
    Mean IOP Change From Baseline at 9 AM
    Description
    Mean IOP change from baseline at 9 AM was measured by Goldmann applanation tonometry. One eye from each subject was chosen as the study eye, and only data for the study eye were used for the efficacy analysis. A higher IOP (fluid pressure inside the eye) can be a greater risk factor for developing glaucoma or glaucoma progression (leading to optic nerve damage). A more negative change indicates a greater improvement.
    Time Frame
    Baseline, Up to Week 8
    Title
    Mean IOP Change From Baseline at 11 AM
    Description
    Mean IOP change from baseline at 11 AM was measured by Goldmann applanation tonometry. One eye from each subject was chosen as the study eye, and only data for the study eye were used for the efficacy analysis. A higher IOP (fluid pressure inside the eye) can be a greater risk factor for developing glaucoma or glaucoma progression (leading to optic nerve damage). A more negative change indicates a greater improvement.
    Time Frame
    Baseline, Up to Week 8
    Title
    Mean IOP Change From Baseline (5 PM) at Week 8
    Description
    Mean IOP change from baseline (5 PM) at Week 8 was measured by Goldmann applanation tonometry. One eye from each subject was chosen as the study eye, and only data for the study eye were used for the efficacy analysis. A higher IOP (fluid pressure inside the eye) can be a greater risk factor for developing glaucoma or glaucoma progression (leading to optic nerve damage). A more negative change indicates a greater improvement.
    Time Frame
    Baseline, Week 8

    10. Eligibility

    Sex
    All
    Minimum Age & Unit of Time
    18 Years
    Accepts Healthy Volunteers
    No
    Eligibility Criteria
    Inclusion Criteria: Diagnosed with open angle glaucoma and/or ocular hypertension and not sufficiently responsive to monotherapy. Meet qualifying IOP criteria in at least 1 eye, including 21-35 mmHg at the Eligibility visit. Willing to sign an Informed Consent form. Contact lens wearer who is willing to remove lenses before instillation of study medication and wait a minimum of 15 minutes following drug instillation before re-inserting the lenses. Able to discontinue use of current IOP-lowering medications per the minimum washout period. Other protocol-specific inclusion criteria may apply. Exclusion Criteria: Women of childbearing potential if pregnant, test positive for pregnancy at Screening/Enrollment visit, breastfeeding, or not in agreement to use adequate birth control methods to prevent pregnancy throughout the study. Diagnosed with any form of glaucoma other than open-angle glaucoma and/or ocular hypertension. Diagnosed with severe central visual field loss in either eye. History of chronic, recurrent, or severe ocular infection, inflammatory eye disease in either eye. History of ocular trauma within the past 6 months in either eye. Current ocular infection or ocular inflammation within the past 3 months in either eye. Ocular laser surgery within the past 3 months. Intraocular surgery within the past 3 months. Best-corrected visual acuity score worse than 55 ETDRS letters read (equivalent to approximately 20/80 Snellen, 0.60 logMAR or 0.25 decimal). History of, or current clinically relevant or progressive retinal disease in either eye. History of, or current other severe ocular pathology (including severe dry eye) in either eye, that would preclude the administration of a topical carbonic anhydrase inhibitor (CAI) or beta-blocker. Any abnormality preventing reliable applanation tonometry. History of, or current condition or disease that would preclude the safe administration of a topical beta blocker or topical beta-adrenergic blocking agent. History of spontaneous or current hypoglycemia or uncontrolled diabetes. History of severe or serious hypersensitivity to CAIs, beta-blockers, or to any components of the study medication. Less than 30 days stable dosing regimen before the Screening Visit of any medications or substances administered by any route and used on a chronic basis that may have affected IOP. Recent use of high-dose salicylate therapy. Anticipated use of any additional topical or systemic ocular hypotensive medication during the study. Not safely able to discontinue all glucocorticoid medications administered by any route. Currently on therapy or have been on therapy with another investigational agent within 30 days prior to the Screening Visit. History of, or current evidence of severe illness or any other conditions which would, in the opinion of the Investigator, make the subject unsuitable for the study. Other protocol-specific exclusion criteria may apply.
    Overall Study Officials:
    First Name & Middle Initial & Last Name & Degree
    Mandy Ye, MS
    Organizational Affiliation
    Alcon Research
    Official's Role
    Study Director

    12. IPD Sharing Statement

    Learn more about this trial

    Fixed Combination Brinzolamide 1%/Timolol 0.5% Versus Brinzolamide 1% + Timolol 0.5% in Open-Angle Glaucoma or Ocular Hypertension

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