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CompletedNCT02419508Updated Nov 15, 2018Results posted

SIMBRINZA® Suspension BID as an Adjunctive to Prostaglandin Analogue (PGA)

A Phase 4 interventional study of Brinzolamide 1%/brimonidine 0.2% tartrate ophthalmic suspension and Brinz/brim vehicle in Open-Angle Glaucoma and Ocular Hypertension, sponsored by Alcon Research. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2018-11-15.

Sponsored by Alcon Research · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
290
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to evaluate the additive intraocular pressure (IOP) lowering effect of brinzolamide 1%/brimonidine 0.2% (dosed twice per day (BID)) when added to a prostaglandin analogue (PGA) in subjects with open-angle glaucoma or ocular hypertension.

Read the detailed description

This study consisted of 2 sequential phases: Screening/Eligibility Phase, followed by a Masked Treatment Phase (Phase II). Subjects were assigned into one of 3 PGA therapy groups for the duration of the study, based upon commercial availability.

02

Conditions studied

  • Open-Angle Glaucoma
  • Ocular Hypertension
03

In context

Glaucoma, Open-Angle

929 studies on the registry are indexed under Glaucoma, Open-Angle; 122 are open to participants now.

This study's enrollment of 290 is above the median of 80 across 700 interventional studies indexed under Glaucoma, Open-Angle.

Browse Glaucoma, Open-Angle studies →

Lead sponsor

Alcon Research is the lead sponsor of 608 studies on the registry; 9 are open to participants now.

Of its 109 completed or terminated interventional studies of FDA-regulated products, 99 (91%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Diagnosis of either open-angle glaucoma or ocular hypertension;
  • Must sign an informed consent form;
  • Mean IOP measurements at both the Eligibility 1 and 2 visits, in at least 1 eye (the same eye[s]) ≥ 19 and \< 32 mmHg at 09:00.
  • Willing and able to attend all study visits;
  • Other protocol-specified inclusion criteria may apply.

Exclusion criteria

Exclusion Criteria:

  • Women of childbearing potential who are pregnant, breast-feeding, intend to become pregnant during the study, or not using adequate birth control methods to prevent pregnancy throughout the study;
  • Any form of glaucoma other than open-angle glaucoma or ocular hypertension;
  • Ocular disease, trauma, infection, inflammation, pathology, or surgery as specified in the protocol;
  • Any other conditions including severe illness which would make the subject, in the opinion of the Investigator, unsuitable for the study;
  • Other protocol-specified exclusion criteria may apply.
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
290 participants (actual)

Study arms

  • Experimental
    SIMBRINZA + PGA

    Brinzolamide 1%/brimonidine 0.2% tartrate ophthalmic suspension, 1 drop instilled 2 times per day in affected eye(s) (09:00 and 21:00) plus designated prostaglandin analogue, 1 drop instilled in each eye once per day in the evening for 42 days

    Drug: Brinzolamide 1%/brimonidine 0.2% tartrate ophthalmic suspension · Drug: Prostaglandin analogue

  • Other
    Vehicle + PGA

    Brinz/brim vehicle, 1 drop instilled 2 times per day in affected eye(s) (09:00 and 21:00) plus designated prostaglandin analogue, 1 drop instilled in each eye once per day in the evening for 42 days

    Drug: Brinz/brim vehicle · Drug: Prostaglandin analogue

Interventions

  • DrugBrinzolamide 1%/brimonidine 0.2% tartrate ophthalmic suspension

    Also known as: SIMBRINZA® suspension

  • DrugBrinz/brim vehicle

    Inactive ingredients used as a placebo for masking purposes

  • DrugProstaglandin analogue

    Also known as: TRAVATAN® PQ (Travoprost ophthalmic solution with PQ, 0.004%), LUMIGAN® (Bimatoprost ophthalmic solution, 0.01%), XALATAN® (Latanoprost ophthalmic solution, 0.005%)

06

What researchers measure

Primary outcomes

  1. Mean Change From Baseline (on PGA) in Diurnal IOP (Mean of 09:00 and 11:00 Time Points) at Week 6

    IOP (fluid pressure inside the eye) was measured using Goldmann applanation tonometry and averaged over the 09:00 AM and 11:00 AM time points. A more negative change from baseline indicates a greater improvement, i.e., a reduction of IOP. One eye (study eye) contributed to the analysis.

    Time frame: Baseline, Week 6

Secondary outcomes

  1. Mean Diurnal IOP at Week 6

    IOP (fluid pressure inside the eye) was measured using Goldmann applanation tonometry and averaged over the 09:00 AM and 11:00 AM time points. A higher IOP can be a greater risk factor for developing glaucoma or glaucoma progression (leading to optic nerve damage). One eye (study eye) contributed to the analysis.

    Time frame: Week 6

  2. Mean Percentage Change From Baseline in Diurnal IOP at Week 6

    IOP (fluid pressure inside the eye) was measured using Goldmann applanation tonometry and averaged over the 09:00 AM and 11:00 AM time points. A more negative percent change from baseline indicates a greater improvement, i.e., a reduction of IOP. One eye (study eye) contributed to the analysis.

    Time frame: Baseline, Week 6

  3. Mean Change From Baseline in IOP at 11:00 at Week 6

    IOP (fluid pressure inside the eye) was measured using Goldmann applanation tonometry at 11:00 AM. A more negative change from baseline indicates a greater improvement, i.e., a reduction of IOP. One eye (study eye) contributed to the analysis.

    Time frame: Baseline, Week 6

  4. Mean Percentage Change From Baseline in IOP at 11:00 at Week 6

    IOP (fluid pressure inside the eye) was measured using Goldmann applanation tonometry at 11:00 AM. A more negative percent change from baseline indicates a greater improvement, i.e., a reduction of IOP. One eye (study eye) contributed to the analysis.

    Time frame: Baseline, Week 6

  5. Mean Change From Baseline in IOP at 09:00 at Week 6

    IOP (fluid pressure inside the eye) was measured using Goldmann applanation tonometry at 09:00 AM. Baseline is defined as the average of the 9:00 hour values at both Eligibility visits. A more negative change from baseline indicates a greater improvement, i.e., a reduction of IOP. One eye (study eye) contributed to the analysis.

    Time frame: Baseline, Week 6

  6. Mean Percentage Change From Baseline at 09:00 at Week 6

    IOP (fluid pressure inside the eye) was measured using Goldmann applanation tonometry at 9:00 AM. Baseline is defined as the average of the 9:00 hour values at both Eligibility visits.A more negative percent change from baseline indicates a greater improvement, i.e., a reduction of IOP. One eye (study eye) contributed to the analysis.

    Time frame: Baseline, Week 6

07

Results

Posted Nov 15, 2018

Participant flow

This study was conducted at 37 sites located in Argentina (3), Australia (4), Canada (12), Chile (3), France (1), Germany (3), Greece (2), Israel (3), Spain (3), and United Kingdom (3).

Participant flow — Overall Study
MilestoneSIMBRINZA + PGAVehicle + PGA
Started9692
Full analysis set9592
Safety analysis set9592
Completed8688
Not completed104
Withdrew: Adverse event93
Withdrew: Withdrawal by subject10
Withdrew: Other - reason not specified01

Outcome measures

PrimaryMean Change From Baseline (on PGA) in Diurnal IOP (Mean of 09:00 and 11:00 Time Points) at Week 6

IOP (fluid pressure inside the eye) was measured using Goldmann applanation tonometry and averaged over the 09:00 AM and 11:00 AM time points. A more negative change from baseline indicates a greater improvement, i.e., a reduction of IOP. One eye (study eye) contributed to the analysis.

Time frame:
Baseline, Week 6
Reported as:
Mean · mmHg
Mean Change From Baseline (on PGA) in Diurnal IOP (Mean of 09:00 and 11:00 Time Points) at Week 6
mmHgSIMBRINZA + PGAVehicle + PGA
Mean Change From Baseline (on PGA) in Diurnal IOP (Mean of 09:00 and 11:00 Time Points) at Week 6-5.6 ± 2.72-2.1 ± 2.61
Statistical analysis
  • SIMBRINZA + PGA vs Vehicle + PGA · Mixed Models Analysis · p = < 0.001
SecondaryMean Diurnal IOP at Week 6

IOP (fluid pressure inside the eye) was measured using Goldmann applanation tonometry and averaged over the 09:00 AM and 11:00 AM time points. A higher IOP can be a greater risk factor for developing glaucoma or glaucoma progression (leading to optic nerve damage). One eye (study eye) contributed to the analysis.

Time frame:
Week 6
Reported as:
Mean · mmHg
Mean Diurnal IOP at Week 6
mmHgSIMBRINZA + PGAVehicle + PGA
Mean Diurnal IOP at Week 617.2 ± 3.4920.9 ± 3.59
Statistical analysis
  • SIMBRINZA + PGA vs Vehicle + PGA · Mixed Models Analysis · p = <0.001
SecondaryMean Percentage Change From Baseline in Diurnal IOP at Week 6

IOP (fluid pressure inside the eye) was measured using Goldmann applanation tonometry and averaged over the 09:00 AM and 11:00 AM time points. A more negative percent change from baseline indicates a greater improvement, i.e., a reduction of IOP. One eye (study eye) contributed to the analysis.

Time frame:
Baseline, Week 6
Reported as:
Mean · percent change
Mean Percentage Change From Baseline in Diurnal IOP at Week 6
percent changeSIMBRINZA + PGAVehicle + PGA
Mean Percentage Change From Baseline in Diurnal IOP at Week 6-24.7 ± 12.17-9.5 ± 10.92
Statistical analysis
  • SIMBRINZA + PGA vs Vehicle + PGA · Mixed Models Analysis · p = <0.001
SecondaryMean Change From Baseline in IOP at 11:00 at Week 6

IOP (fluid pressure inside the eye) was measured using Goldmann applanation tonometry at 11:00 AM. A more negative change from baseline indicates a greater improvement, i.e., a reduction of IOP. One eye (study eye) contributed to the analysis.

Time frame:
Baseline, Week 6
Reported as:
Mean · mmHg
Mean Change From Baseline in IOP at 11:00 at Week 6
mmHgSIMBRINZA + PGAVehicle + PGA
Baseline22.4 ± 2.7022.6 ± 2.69
Change from baseline-7.0 ± 3.19-2.4 ± 2.78
Statistical analysis
  • SIMBRINZA + PGA vs Vehicle + PGA · Mixed Models Analysis · p = <0.001
SecondaryMean Percentage Change From Baseline in IOP at 11:00 at Week 6

IOP (fluid pressure inside the eye) was measured using Goldmann applanation tonometry at 11:00 AM. A more negative percent change from baseline indicates a greater improvement, i.e., a reduction of IOP. One eye (study eye) contributed to the analysis.

Time frame:
Baseline, Week 6
Reported as:
Mean · percent change
Mean Percentage Change From Baseline in IOP at 11:00 at Week 6
percent changeSIMBRINZA + PGAVehicle + PGA
Mean Percentage Change From Baseline in IOP at 11:00 at Week 6-31.3 ± 14.81-10.8 ± 11.86
Statistical analysis
  • SIMBRINZA + PGA vs Vehicle + PGA · Mixed Models Analysis · p = <0.001
SecondaryMean Change From Baseline in IOP at 09:00 at Week 6

IOP (fluid pressure inside the eye) was measured using Goldmann applanation tonometry at 09:00 AM. Baseline is defined as the average of the 9:00 hour values at both Eligibility visits. A more negative change from baseline indicates a greater improvement, i.e., a reduction of IOP. One eye (study eye) contributed to the analysis.

Time frame:
Baseline, Week 6
Reported as:
Mean · mmHg
Mean Change From Baseline in IOP at 09:00 at Week 6
mmHgSIMBRINZA + PGAVehicle + PGA
Baseline23.4 ± 2.4023.4 ± 2.22
Change from baseline-4.9 ± 3.06-2.5 ± 2.87
Statistical analysis
  • SIMBRINZA + PGA vs Vehicle + PGA · Mixed Models Analysis · p = <0.001
SecondaryMean Percentage Change From Baseline at 09:00 at Week 6

IOP (fluid pressure inside the eye) was measured using Goldmann applanation tonometry at 9:00 AM. Baseline is defined as the average of the 9:00 hour values at both Eligibility visits.A more negative percent change from baseline indicates a greater improvement, i.e., a reduction of IOP. One eye (study eye) contributed to the analysis.

Time frame:
Baseline, Week 6
Reported as:
Mean · percent change
Mean Percentage Change From Baseline at 09:00 at Week 6
percent changeSIMBRINZA + PGAVehicle + PGA
Mean Percentage Change From Baseline at 09:00 at Week 6-21.0 ± 13.36-10.9 ± 11.83
Statistical analysis
  • SIMBRINZA + PGA vs Vehicle + PGA · Mixed Models Analysis · p = <0.001

Adverse events

Collected over Baseline through study completion, an average of 6 weeks.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
SIMBRINZA + PGA0/95 (0%)1/95 (1.1%)10/95 (10.5%)
Vehicle + PGA0/92 (0%)0/92 (0%)1/92 (1.1%)
Most frequent serious events
Most frequent serious events
EventSIMBRINZA + PGAVehicle + PGA
Cardiac failureCardiac disorders1/950/92
Most frequent other events
Most frequent other events
EventSIMBRINZA + PGAVehicle + PGA
Ocular hyperaemiaEye disorders5/951/92
Dry mouthGastrointestinal disorders5/950/92

Baseline characteristics

This analysis population includes all randomized subjects who received a dose of study medication and had at least 1 of the 2 scheduled on-treatment visits \[Full Analysis Set (FAS)\].

Age, Continuous
Age, Continuous(years)SIMBRINZA + PGAVehicle + PGATotal
Mean66.5 ± 10.7067.9 ± 11.6567.2 ± 11.17
Sex: Female, Male
Sex: Female, Male(Participants)SIMBRINZA + PGAVehicle + PGATotal
Female554398
Male404989
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)SIMBRINZA + PGAVehicle + PGATotal
Hispanic or Latino232952
Not Hispanic or Latino7262134
Unknown or Not Reported011
Baseline Diurnal IOP
Baseline Diurnal IOP(millimeters mercury (mmHg))SIMBRINZA + PGAVehicle + PGATotal
Mean22.8 ± 2.3922.9 ± 2.3222.8 ± 2.35
Region of Enrollment
Region of Enrollment(Participants)SIMBRINZA + PGAVehicle + PGATotal
Europe, Australia454489
Latin America, Canada504898
08

Study locations

1 site
  • Contact Alcon Call Center for Trial Locations
    Fort Worth, Texas 76134, United States
09

References and documents

Study documents

  • Statistical analysis plan · Mar 12, 2018
  • Study protocol · Mar 30, 2017

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 15, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT02419508
Lead sponsor
Alcon Research
Responsible party
Sponsor
First posted
Apr 17, 2015
Start date
Aug 7, 2015
Primary completion
Feb 27, 2018
Completion
Feb 27, 2018
Results posted
Nov 15, 2018
Last update
Nov 15, 2018

Study contacts

Clinical Manager, Ophtha, GCRA
study director · Alcon, a Novartis Company

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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