Dry Eye SyndromePhase 2NCT03066219

Safety and Efficacy of BRM421 for Dry Eye Syndrome

A Phase 2 study testing BRM421 in people with Dry Eye Syndrome, run by BRIM Biotechnology Inc. at 2 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record

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Trial 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. Read more about this study

Who is it for?: Ages 18 years and older
Conditions the study is for: Dry Eye Syndrome
What is being tested?: BRM421
Could I receive a placebo?: Yes, some participants may receive a placebo
How many people: 157 participants
Where: 2 sitesUnited States
Study dates: 7 Feb 2017to 28 Jun 2017
Phase: Phase 2
Are there results?: Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

Ages 18 years and older
All sexes
No healthy volunteers
Adult, Older adult

Who may be able to join

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

Who cannot join

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

Trial locations and contacts

2 sites in 1 country.

United States2 sites

Andover Eye Associates
Andover, Massachusetts, 01810
Central Maine Eye Care
Lewiston, Maine, 04240

Other trials in United States

About this study

Official title: 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

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.

Read the detailed description

This is a multi-center, double-masked, randomized, vehicle-controlled, phase 2 study in approximately 150 subjects. (75 per treatment arm).

Conditions: Dry Eye Syndrome
Being tested: BRM421, Placebo
Medical subject headings: Dry Eye Syndromes

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

BRM421Drug
0.03%(w/v) BRIM421 ophthalmic solution
PlaceboDrug
vehicle ophthalmic drops

Study groups in NCT03066219
Study group	Role	What they receive
BRM421 Ophthalmic Solution	Active comparator	The active control with BRM421 solution Receives: Drug: BRM421
Placebo	Placebo comparator	The vehicle solution Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

Sign: Corneal Fluorescein Staining Score
The staining was graded with the Ora Calibra® Corneal and Conjunctival Staining Scale. The ocular surface was divided into three regions, including superior, central and inferior region. The following scale was used to grade staining of the each region. Half (0.5) grade increments may be used. The total score of corneal fluorescein staining was calculated as the sum of three regions, the score range is 0 (minimum) to 12 (maximum).
None 0 = no staining Trace 1 = occasional Mild 2 = countable Moderate 3 = uncountable, but not confluent Severe 4 = confluent
Measured: change from baseline to week 4
Symptom: Ocular Discomfort Score
Ocular discomfort scores was subjectively graded by the subjects according to the following Ora Calibra® Ocular Discomfort Scale, rating each eye separately, the score range is 0 (minimum) to 4 (maximum).
0 = no discomfort
1. = intermittent awareness
2. = constant awareness
3. = intermittent discomfort
4. = constant discomfort
Measured: change from baseline to week 4

Secondary outcomes (3)

Tear Film Break-up Time
The examiner was instilled 5 uL of 2% preservative-free sodium fluorescein solution into the inferior conjunctival cul-de-sac of each eye. With the aid of a slit-lamp, the examiner monitored the integrity of the tear film, noting the time (seconds) it takes to form micelles from the time that the eye is opened.
Measured: change from baseline to week 4
Conjunctival Redness
Conjunctival redness was graded according to the following scale: Half (0.5) unit increments may be used.
None 0 = Normal, without vasodilation Trace 1 = Trace ciliary or conjunctival vasodilation Mild 2 = Broad ciliary vasodilation; Moderate 3 = Broad ciliary and slight, horizontal conjunctival vasodilation Severe 4 = Broad ciliary and prominent, horizontal conjunctival vasodilation
Measured: change from baseline to week 4
Ocular Surface Disease Index (OSDI)©
OSDI scores was subjectively graded by the subjects according to the Ocular Surface and Disease Index (OSDI) Scale. Patients scored each question from 0 to 4 (higher score means more severe), and the OSDI score is the sum of total 12 questions. The score range is 0 (minimum) to 48 (maximum).
Measured: change from baseline to week 4

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

7 Feb 201728 Jun 2017

First posted28 Feb 2017
Study start7 Feb 2017
Primary completion20 May 2017
Study completion28 Jun 2017

Resources

Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
Other trials for Dry Eye SyndromeStudies of the same condition, open and under way.
What the trial phases meanHow a treatment moves from first tests in people to approval.

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design

Study type: Interventional
Phase: Phase 2
Primary purpose: Treatment
Allocation: Randomised
Intervention model: Parallel groups
Masking: Double blind
Who is masked: Participant, Investigator
Enrolment: 157 participants (actual)

IDs, dates and publications

ClinicalTrials.gov ID: NCT03066219
Sponsor's protocol ID: BRM421-16-C001-PR
Status last verified: Oct 2019
First submitted: 23 Feb 2017
Last updated: 1 May 2026
Results posted: Yes, on ClinicalTrials.gov
FDA-regulated drug: Yes
FDA-regulated device: No

Want to know more?

The sponsor has not listed a contact. The official record may have more details.

Talk to your doctor first and take this page with you. Only the study team can confirm whether you can join.

Questions to ask the study team

What is the study trying to find out?
What would I need to do, and how often would I visit?
Could I receive a placebo instead of the treatment?
What are the possible risks and benefits for me?
Will it cost me anything? Are travel or time paid for?
Can I keep seeing my own doctor during the study?
What happens when the study ends?

See locations

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All Dry Eye Syndrome trials

Study at a glance

From the registry record, last updated by the sponsor on 1 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.

Official title: 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
ClinicalTrials.gov ID: NCT03066219
Acronym / sponsor ID: BRM421-16-C001-PR
Conditions: Dry Eye Syndrome
Phase: Phase 2
Study type: Interventional
Recruitment status: Completed
Enrolment: 157 participants (actual)
Lead sponsor: BRIM Biotechnology Inc.Industry (pharma, biotech, devices)
Study start: 7 Feb 2017 (actual)
Primary completion: 20 May 2017 (actual)
Study completion: 28 Jun 2017 (actual)
First posted: 28 Feb 2017 (actual)
Results: Posted 1 May 2026

Clinical summary

The research question as the sponsor registered it. This describes what the study plans to test, not what it found.

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, vehicle-controlled, phase 2 study in approximately 150 subjects. (75 per treatment arm).

Study design

Primary purpose: Treatment
Allocation: Randomised
Intervention model: Parallel groups
Masking: Double blind (participant, investigator)
Number of arms: 2

Arm	Type	Receives
BRM421 Ophthalmic Solution	Active comparator	Drug: BRM421The active control with BRM421 solution
Placebo	Placebo comparator	Drug: PlaceboThe vehicle solution

Who may qualify

Ages: 18 years and older
Sex: All
Healthy volunteers: Not accepted
Age groups: Adult, Older adult

Key inclusion criteria (4 listed)

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

Key exclusion criteria (6 listed)

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;

Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.

Interventions

Intervention	Type	Arms
BRM4210.03%(w/v) BRIM421 ophthalmic solution	Drug	BRM421 Ophthalmic Solution
Placebovehicle ophthalmic drops	Drug	Placebo

Primary outcome

Sign: Corneal Fluorescein Staining Score
Time frame: change from baseline to week 4
The staining was graded with the Ora Calibra® Corneal and Conjunctival Staining Scale. The ocular surface was divided into three regions, including superior, central and inferior region. The following scale was used to grade staining of the each region. Half (0.5) grade increments may be used. The total score of corneal fluorescein staining was calculated as the sum of three regions, the score range is 0 (minimum) to 12 (maximum). None 0 = no staining Trace 1 = occasional Mild 2 = countable Moderate 3 = uncountable, but not confluent Severe 4 = confluent
Symptom: Ocular Discomfort Score
Time frame: change from baseline to week 4
Ocular discomfort scores was subjectively graded by the subjects according to the following Ora Calibra® Ocular Discomfort Scale, rating each eye separately, the score range is 0 (minimum) to 4 (maximum). 0 = no discomfort 1. = intermittent awareness 2. = constant awareness 3. = intermittent discomfort 4. = constant discomfort

3 secondary outcomes

Tear Film Break-up Time
Time frame: change from baseline to week 4
Conjunctival Redness
Time frame: change from baseline to week 4
Ocular Surface Disease Index (OSDI)©
Time frame: change from baseline to week 4

Results and safety

Results posted to the registry on 1 May 2026, as reported by the sponsor. Figures are copied from the record, not re-analysed. Full results on ClinicalTrials.gov.

Participant flow

Group	Started	Completed
BRM421 Ophthalmic Solution	78	76
Placebo	79	75

Primary outcome: Sign: Corneal Fluorescein Staining Score

Time frame: change from baseline to week 4. Mean (95% Confidence Interval). Unit: score on a scale

Measure	BRM421 Ophthalmic Solution n = 76	Placebo n = 75
Value	-1.06 (-1.5 to -0.62)	-1.16 (-1.61 to -0.71)

Primary outcome: Symptom: Ocular Discomfort Score

Time frame: change from baseline to week 4. Mean (95% Confidence Interval). Unit: score on a scale

Measure	BRM421 Ophthalmic Solution n = 76	Placebo n = 75
Value	0.41 (0.14 to 0.67)	0.16 (-0.14 to 0.46)

3 secondary outcomes are reported in the full results.

Adverse events

Time frame: 6 weeks. Other adverse events reported at 5% frequency or more

Group	Serious adverse events	Other adverse events	Deaths
BRM421 Ophthalmic Solution	0 of 78 (0%)	4 of 78 (5.1%)	0 of 78
Placebo	0 of 79 (0%)	3 of 79 (3.8%)	0 of 79

Loading the posted results from ClinicalTrials.gov…

Research links

Official record on ClinicalTrials.govLast updated by the sponsor 1 May 2026.
Posted resultsParticipant flow, baseline, all outcome measures and adverse events.

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Referral and contact

AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.

Gail Torkildsen, MD principal investigator

Andover Eye Associates

John Lonsdale, MD principal investigator

Central Maine Eye Care

2 sites in 1 country: see every site and its status.

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing BRM421 in people with Dry Eye Syndrome, run by BRIM Biotechnology Inc. at 2 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 1 May 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 1 May 2026). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Sign: Corneal Fluorescein Staining Score (time frame: change from baseline to week 4). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03066219.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 May 2026.