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Safety and Efficacy of BRM421 for Dry Eye Syndrome Treatment

A Multi-Center, Randomized, Double Masked, Placebo Controlled Clinical Study to Assess the Safety and Efficacy of BRM421 Ophthalmic Solution in Subjects With Dry Eye Using a Controlled Adverse Environment (CAE®) Model

Status
Completed
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04343287
Enrollment
220
Registered
2020-04-13
Start date
2020-01-15
Completion date
2020-06-23
Last updated
2026-05-01

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

Conditions

Dry Eye Syndrome

Brief summary

The objective of this study is to compare the safety and efficacy of BRM421 Ophthalmic Solution to placebo for the treatment of the signs and symptoms of dry eye.

Detailed description

This is a multi-center, double-masked, randomized, placebo-controlled, phase 2/3 study with approximately 200 subjects. (around 100 subjects per treatment arm).

Interventions

DRUGBRM421

The active control with BRM421 solution

DRUGPlacebo

The vehicle solution

Sponsors

BRIM Biotechnology Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Masking description

Double Masking

Eligibility

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

Inclusion criteria

* Be at least 18 years of age; * Provide written informed consent; * Have a reported history of dry eye for at least 6 months prior to enrollment; * Have a history of use of eye drops

Exclusion criteria

* Have any clinically significant slit lamp findings at Visit 1 that may include active blepharitis, meibomian gland dysfunction (MGD), lid margin inflammation or active ocular allergies that require therapeutic treatment, and/or in the opinion of the investigator may interfere with study parameters; * Be diagnosed with an ongoing ocular infection (bacterial, viral, or fungal), or active ocular inflammation at Visit 1; * Have worn contact lenses within 7 days of Visit 1 or anticipate using contact lenses during the study; * Have used any eye drops within 2 hours of Visit 1; * Have previously had laser-assisted in situ keratomileusis (LASIK) surgery within the last 12 months; * Be a woman of childbearing potential who is not using an acceptable means of birth control; acceptable methods of contraception

Design outcomes

Primary

MeasureTime frameDescription
Ocular Sign: Change From Baseline in Total Corneal Staining Score to Day 14change from baseline to 2 weeksCorneal staining was performed to grade the degree of corneal epithelial cell injury as measured by fluorescence using slit-lamp examination. Ora Calibra® Scale from 0 to 4 with the use of half grade (0.5) increments, where grade 0 = None and 4 = Severe. Total corneal staining score was the sum of all three regions (Inferior, Central and Superior), the score range is from 0 (minimum) to 12 (maximum).
Ocular Symptom: Change From Baseline in Patient-Reported Ocular Dryness Score to Day 14, Using Ora Calibra® Ocular Discomfort & 4-Symptom Questionnairechange from baseline to 2 weeksOcular dryness from the Ora Calibra® Ocular Discomfort \& 4-Symptom Questionnaire was assessed at the subject level in regard to how both eyes felt. The Ora Calibra® Ocular Discomfort \& 4-Symptom Questionnaire was used, which included rating the severity of 5 symptoms: ocular discomfort, burning, dryness, grittiness, and stinging. Each symptom rating ranged from 0 to 5, where 0 = None and 5 = Worst.

Secondary

MeasureTime frameDescription
Eye Dryness: Change From Baseline in Patient-Reported Ocular Symptom to Day 8, Using Visual Analog Scale (VAS)change from baseline to 1 weekVisual analog scale (VAS) was measured by asking subjects to rate each ocular symptom due to ocular dryness by placing a vertical mark on a horizontal line of length 100 mm to indicate the level of discomfort where 0 mm = No Discomfort and 100 mm = Maximal Discomfort. Symptoms assessed were burning/stinging, itching, foreign body sensation, blurred vision, eye dryness, photophobia, and pain.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORGail Torkildsen, MD

Andover Eye Associates

PRINCIPAL_INVESTIGATORBlair Boehmer, MD

Midwest Cornea Associates, LLC.

PRINCIPAL_INVESTIGATORDavid Wirta, MD

Eye Research Foundation

PRINCIPAL_INVESTIGATOREugene B McLaurin, MD

Total Eye Care, PA

Participant flow

Participants by arm

ArmCount
BRM421 Ophthalmic Solution
A topical solution of BRIM421 ophthalmic drops BRM421: The active control with BRM421 solution
108
Placebo
A vehicle ophthalmic drops Placebo: The vehicle solution
112
Total220

Baseline characteristics

CharacteristicBRM421 Ophthalmic SolutionPlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
58 Participants55 Participants113 Participants
Age, Categorical
Between 18 and 65 years
50 Participants57 Participants107 Participants
Age, Continuous63.9 years
STANDARD_DEVIATION 10.9
63.4 years
STANDARD_DEVIATION 12.07
63.7 years
STANDARD_DEVIATION 11.49
Dryness from Ocular Discomfort & 4-Symptom Questionnaire3.0 units on a scale
STANDARD_DEVIATION 1
3.3 units on a scale
STANDARD_DEVIATION 0.93
3.2 units on a scale
STANDARD_DEVIATION 0.97
Ethnicity (NIH/OMB)
Hispanic or Latino
8 Participants6 Participants14 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
100 Participants106 Participants206 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants0 Participants1 Participants
Race (NIH/OMB)
Asian
4 Participants9 Participants13 Participants
Race (NIH/OMB)
Black or African American
21 Participants19 Participants40 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
82 Participants84 Participants166 Participants
Region of Enrollment
United States
108 participants112 participants220 participants
Sex: Female, Male
Female
69 Participants83 Participants152 Participants
Sex: Female, Male
Male
39 Participants29 Participants68 Participants
Total Corneal Fluorescein Staining6.19 units on a scale
STANDARD_DEVIATION 0.904
6.15 units on a scale
STANDARD_DEVIATION 0.835
6.17 units on a scale
STANDARD_DEVIATION 0.868

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 1080 / 112
other
Total, other adverse events
38 / 10846 / 112
serious
Total, serious adverse events
1 / 1080 / 112

Outcome results

Primary

Ocular Sign: Change From Baseline in Total Corneal Staining Score to Day 14

Corneal staining was performed to grade the degree of corneal epithelial cell injury as measured by fluorescence using slit-lamp examination. Ora Calibra® Scale from 0 to 4 with the use of half grade (0.5) increments, where grade 0 = None and 4 = Severe. Regions assessed were the central, superior, inferior, temporal, and nasal. Total corneal staining score was the sum of all five regions. Analyses were for study eye only.

Time frame: 2 weeks

ArmMeasureValue (MEAN)Dispersion
BRM421 Ophthalmic SolutionOcular Sign: Change From Baseline in Total Corneal Staining Score to Day 14-1 score on a scaleStandard Deviation 1.245
PlaceboOcular Sign: Change From Baseline in Total Corneal Staining Score to Day 14-0.68 score on a scaleStandard Deviation 1.392
Primary

Ocular Symptom: Change From Baseline in Patient-Reported Ocular Dryness Score to Day 14, Using Ora Calibra® Ocular Discomfort & 4-Symptom Questionnaire

Ocular dryness from the Ora Calibra® Ocular Discomfort & 4-Symptom Questionnaire was assessed at the subject level in regard to how both eyes felt. The Ora Calibra® Ocular Discomfort & 4-Symptom Questionnaire was used, which included rating the severity of 5 symptoms: ocular discomfort, burning, dryness, grittiness, and stinging. Each symptom rating ranged from 0 to 5, where 0 = None and 5 = Worst.

Time frame: 2 weeks

ArmMeasureValue (MEAN)Dispersion
BRM421 Ophthalmic SolutionOcular Symptom: Change From Baseline in Patient-Reported Ocular Dryness Score to Day 14, Using Ora Calibra® Ocular Discomfort & 4-Symptom Questionnaire-0.3 units on a scaleStandard Deviation 0.98
PlaceboOcular Symptom: Change From Baseline in Patient-Reported Ocular Dryness Score to Day 14, Using Ora Calibra® Ocular Discomfort & 4-Symptom Questionnaire-0.5 units on a scaleStandard Deviation 0.99
Secondary

Eye Dryness: Change From Baseline in Patient-Reported Ocular Symptom to Day 14, Using Visual Analog Scale (VAS)

Visual analog scale (VAS) was measured by asking subjects to rate each ocular symptom due to ocular dryness by placing a vertical mark on a horizontal line of length 100 mm to indicate the level of discomfort where 0 mm = No Discomfort and 100 mm = Maximal Discomfort. Symptoms assessed were burning/stinging, itching, foreign body sensation, blurred vision, eye dryness, photophobia, and pain.

Time frame: 2 weeks

ArmMeasureValue (MEAN)Dispersion
BRM421 Ophthalmic SolutionEye Dryness: Change From Baseline in Patient-Reported Ocular Symptom to Day 14, Using Visual Analog Scale (VAS)-8.4 score on a scaleStandard Deviation 19.22
PlaceboEye Dryness: Change From Baseline in Patient-Reported Ocular Symptom to Day 14, Using Visual Analog Scale (VAS)-3.7 score on a scaleStandard Deviation 18.29

Source: ClinicalTrials.gov · Data processed: May 2, 2026