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A Therapeutic Equivalence Study in Subjects With Primary Open Angle Glaucoma or Ocular Hypertension

Therapeutic Equivalence Study of Generic Brinzolamide 1% Ophthalmic Suspension Compared to Reference Listed Drug Azopt® (Brinzolamide) Ophthalmic Suspension 1% in Subjects With Primary Open Angle Glaucoma or Ocular Hypertension.

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05022004
Enrollment
599
Registered
2021-08-26
Start date
2021-12-20
Completion date
2023-01-06
Last updated
2024-01-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Ocular Hypertension, Primary Open Angle Glaucoma

Brief summary

This is a randomized, Investigator-masked, multi-center, parallel group, therapeutic equivalence study with clinical endpoint.

Interventions

DRUGBrinzolamide ophthalmic suspension

dose: one drop of study medication; frequency: three times a day; route of administration: Topical ocular administration; duration of therapy: 6 weeks

DRUGAzopt®

dose: one drop of study medication; frequency: three times a day; route of administration: Topical ocular administration; duration of therapy: 6 weeks

Sponsors

Sun Pharmaceutical Industries Limited
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male or nonpregnant female aged 18 years or older with chronic open angle glaucoma or ocular hypertension in both eyes. * Provide signed and dated informed consent in accordance with good clinical practice and local legislation prior to any study procedure. * Be able and willing to follow study instructions and complete all required visits. * Subject requires treatment of both eyes and is able to discontinue use of all ocular hypotensive medication(s) or switch ocular hypotensive medications and undergo appropriate washout period.

Exclusion criteria

* Subjects with angle closure glaucoma * Females who are pregnant, breast feeding, or planning a pregnancy. * Females of childbearing potential who do not agree to utilize an adequate form of contraception. * Current, or past history of, severe hepatic or renal impairment * Current, or history within 2 months prior to baseline of, significant ocular disease * Functionally significant visual field loss * Contraindication to brinzolamide or sulfonamide therapy or known hypersensitivity to any component of brinzolamide or sulfonamide therapy * Subjects currently in another clinical trial

Design outcomes

Primary

MeasureTime frameDescription
Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsBaseline, Week 2 & Week 6The recommended primary endpoint is the mean difference in Intraocular Pressure of both eyes between the two treatment groups at pre-specified time points.

Secondary

MeasureTime frame
Change From Baseline in IOP of Both Eyes Between the 2 Treatment Groups.approximately 8:00 AM. (hour 0; before the morning drop) and 10:00 AM. (hour 2) at the Day 14 (Week 2) and Day 42 (Week 6) visits

Countries

India, Russia

Participant flow

Participants by arm

ArmCount
BRIN-20-01
Brinzolamide ophthalmic suspension: dose: one drop of study medication; frequency: three times a day; route of administration: Topical ocular administration; duration of therapy: 6 weeks
297
Azopt®
Azopt®: dose: one drop of study medication; frequency: three times a day; route of administration: Topical ocular administration; duration of therapy: 6 weeks
300
Total597

Baseline characteristics

CharacteristicAzopt®TotalBRIN-20-01
Age, Continuous61.3 years
STANDARD_DEVIATION 12.01
61.2 years
STANDARD_DEVIATION 12
61.2 years
STANDARD_DEVIATION 12.01
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants1 Participants0 Participants
Race (NIH/OMB)
Asian
105 Participants204 Participants99 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
194 Participants392 Participants198 Participants
Sex: Female, Male
Female
174 Participants344 Participants170 Participants
Sex: Female, Male
Male
126 Participants253 Participants127 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 2970 / 300
other
Total, other adverse events
49 / 29738 / 300
serious
Total, serious adverse events
0 / 2971 / 300

Outcome results

Primary

Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment Groups

The recommended primary endpoint is the mean difference in Intraocular Pressure of both eyes between the two treatment groups at pre-specified time points.

Time frame: Baseline, Week 2 & Week 6

ArmMeasureGroupValue (MEAN)Dispersion
BRIN-20-01Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsBaseline- Left Eye 08:0024.92 mmHgStandard Deviation 2.29
BRIN-20-01Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsBaseline- Right Eye 08:0024.87 mmHgStandard Deviation 2.378
BRIN-20-01Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsBaseline - Left Eye 10:0024.54 mmHgStandard Deviation 2.307
BRIN-20-01Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsBaeline - Right Eye 10:0024.52 mmHgStandard Deviation 2.423
BRIN-20-01Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsWeek 2 - Left Eye 08:0019.87 mmHgStandard Deviation 3.436
BRIN-20-01Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsWeek 2 - Right Eye 08:0019.81 mmHgStandard Deviation 3.4
BRIN-20-01Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsWeek 2 - Left Eye 10:0018.87 mmHgStandard Deviation 3.544
BRIN-20-01Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsWeek 2 - Right Eye 10:0018.69 mmHgStandard Deviation 3.572
BRIN-20-01Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsWeek 6 - Left Eye 08:0018.86 mmHgStandard Deviation 3.162
BRIN-20-01Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsWeek 6 - Right Eye 08:0018.87 mmHgStandard Deviation 3.067
BRIN-20-01Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsWeek 6 - Left Eye 10:0017.76 mmHgStandard Deviation 3.252
BRIN-20-01Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsWeek 6 - Right Eye 10:0017.71 mmHgStandard Deviation 3.19
Azopt®Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsWeek 6 - Left Eye 10:0017.73 mmHgStandard Deviation 3.418
Azopt®Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsBaseline- Left Eye 08:0025.06 mmHgStandard Deviation 2.363
Azopt®Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsWeek 2 - Left Eye 10:0018.39 mmHgStandard Deviation 3.76
Azopt®Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsBaseline- Right Eye 08:0025.12 mmHgStandard Deviation 2.358
Azopt®Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsWeek 6 - Right Eye 08:0018.99 mmHgStandard Deviation 3.123
Azopt®Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsBaseline - Left Eye 10:0024.83 mmHgStandard Deviation 2.389
Azopt®Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsWeek 2 - Right Eye 10:0018.47 mmHgStandard Deviation 3.468
Azopt®Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsBaeline - Right Eye 10:0024.90 mmHgStandard Deviation 2.365
Azopt®Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsWeek 6 - Right Eye 10:0017.70 mmHgStandard Deviation 3.162
Azopt®Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsWeek 2 - Left Eye 08:0019.56 mmHgStandard Deviation 3.642
Azopt®Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsWeek 6 - Left Eye 08:0018.91 mmHgStandard Deviation 3.333
Azopt®Mean Difference in Intraocular Pressure of Both Eyes Between the Two Treatment GroupsWeek 2 - Right Eye 08:0019.62 mmHgStandard Deviation 3.423
95% CI: [-0.28, 0.91]
95% CI: [-0.39, 0.76]
95% CI: [-0.59, 0.5]
95% CI: [-0.64, 0.4]
Secondary

Change From Baseline in IOP of Both Eyes Between the 2 Treatment Groups.

Time frame: approximately 8:00 AM. (hour 0; before the morning drop) and 10:00 AM. (hour 2) at the Day 14 (Week 2) and Day 42 (Week 6) visits

ArmMeasureGroupValue (MEAN)Dispersion
BRIN-20-01Change From Baseline in IOP of Both Eyes Between the 2 Treatment Groups.Week 2 - Right Eye 10:00-5.82 mmHgStandard Deviation 3.484
BRIN-20-01Change From Baseline in IOP of Both Eyes Between the 2 Treatment Groups.Week 2- Left Eye 08:00-4.67 mmHgStandard Deviation 3.441
BRIN-20-01Change From Baseline in IOP of Both Eyes Between the 2 Treatment Groups.Week 2- Right Eye 08:00-4.71 mmHgStandard Deviation 3.286
BRIN-20-01Change From Baseline in IOP of Both Eyes Between the 2 Treatment Groups.Week 2- Left Eye 10:00-5.68 mmHgStandard Deviation 3.475
BRIN-20-01Change From Baseline in IOP of Both Eyes Between the 2 Treatment Groups.Week 6- Left Eye 08:00-5.68 mmHgStandard Deviation 3.29
BRIN-20-01Change From Baseline in IOP of Both Eyes Between the 2 Treatment Groups.Week 6- Right Eye 08:00-5.64 mmHgStandard Deviation 3.107
BRIN-20-01Change From Baseline in IOP of Both Eyes Between the 2 Treatment Groups.Week 6 - Left Eye 10:00-6.78 mmHgStandard Deviation 3.329
BRIN-20-01Change From Baseline in IOP of Both Eyes Between the 2 Treatment Groups.Week 6 - Right Eye 10:00-6.81 mmHgStandard Deviation 3.239
Azopt®Change From Baseline in IOP of Both Eyes Between the 2 Treatment Groups.Week 6 - Right Eye 10:00-7.20 mmHgStandard Deviation 3.5
Azopt®Change From Baseline in IOP of Both Eyes Between the 2 Treatment Groups.Week 6- Left Eye 08:00-5.92 mmHgStandard Deviation 3.577
Azopt®Change From Baseline in IOP of Both Eyes Between the 2 Treatment Groups.Week 2- Left Eye 08:00-5.27 mmHgStandard Deviation 3.617
Azopt®Change From Baseline in IOP of Both Eyes Between the 2 Treatment Groups.Week 6 - Left Eye 10:00-7.10 mmHgStandard Deviation 3.614
Azopt®Change From Baseline in IOP of Both Eyes Between the 2 Treatment Groups.Week 2- Right Eye 08:00-5.28 mmHgStandard Deviation 3.531
Azopt®Change From Baseline in IOP of Both Eyes Between the 2 Treatment Groups.Week 6- Right Eye 08:00-5.91 mmHgStandard Deviation 3.468
Azopt®Change From Baseline in IOP of Both Eyes Between the 2 Treatment Groups.Week 2- Left Eye 10:00-6.44 mmHgStandard Deviation 3.717
Azopt®Change From Baseline in IOP of Both Eyes Between the 2 Treatment Groups.Week 2 - Right Eye 10:00-6.43 mmHgStandard Deviation 3.63
p-value: 0.0015two-sample t-test
p-value: 0.0008two-sample t-test
p-value: <0.0001two-sample t-test
p-value: <0.0001two-sample t-test

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026