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BTOS-HA

Phase 3

Ocular Redness | Small molecule | Ophthalmology |Bausch + Lomb Corporation|Last Updated: May 28, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLED
Total Trials1
Total Enrollment578

FDA Designations

No designations recorded

Clinical trial landscape

BTOS-HA · 1 trial · 1 indication

Phase 3 1
NCT06803654A Study Comparing the Efficacy and Safety of Brimonidine Tartrate Ophthalmic Solution 0.025% With Sodium Hyaluronate Relative to Lumify in Adult Subjects With Ocular RednessOcular Redness
COMPLETED578 Analytics
PHASE3COMPLETED
A Study Comparing the Efficacy and Safety of Brimonidine Tartrate Ophthalmic Solution 0.025% With Sodium Hyaluronate Relative to Lumify in Adult Subjects With Ocular Redness
Ocular RednessUnlock trial analytics

Study Endpoints

Primary Endpoints

Ocular redness score (0-4 unit scale, allowing half-unit increments) evaluated by the investigator at Visit 2 (Day 1)
Assessed at Visit 2 (Day 1) prior to investigational drug instillation and after investigational drug instillation at 5(+1) minutes, 15(+1) minutes, 30(+1) minutes, 60(+10) minutes, 90(+10) minutes, 120(+15) minutes, 180(+15) minutes, 240(+15) minutes

Ocular redness score (0-4 unit scale, allowing half-unit increments) evaluated by the investigator at Visit 2 (Day 1) prior to investigational drug instillation and after investigational drug instillation at 5(+1) minutes, 15(+1) minutes, 30(+1) minutes, 60(+10) minutes, 90(+10) minutes, 120(+15) minutes, 180(+15) minutes, 240(+15) minutes

Secondary Endpoints

Change from pre-instillation ocular redness score (0-4 unit scale, allowing half-unit increments) evaluated by the investigator at Visit 2 (Day 1)
Assessed at Visit 2 (Day 1) after investigational drug instillation evaluated hierarchically at: 1 (+0.5) minute, 360 (+15) minutes and 480 (+15) minutes
Change from pre-instillation ocular redness score (0-4 unit scale, allowing half-unit increments) evaluated by the Investigator after investigational drug instillation evaluated hierarchically at Visit 3 (Day 15)
Assessed at Visit 3 (Day 15) 5 (+1) minutes and 15 (+1) minutes
Change from pre-instillation ocular redness score (0-4 unit scale, allowing half-unit increments) evaluated by the Investigator after investigational drug instillation evaluated hierarchically at Visit 4 (Day 29)
Assessed at Visit 4 (Day 29) 5 (+1) minutes and 15 (+1) minutes
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Study Design & Arms

AllocationRANDOMIZED
MaskingSINGLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Brimonidine tartrate ophthalmic solution 0.025% with sodium hyaluronate (BTOS-HA)EXPERIMENTAL -
Brimonidine tartrate ophthalmic solution 0.025%ACTIVE_COMPARATOR -

Interventions

NameTypeDescription
BTOS-HADRUGBrimonidine tartrate ophthalmic solution 0.025% with sodium hyaluronate (BTOS-HA) administered as 1 topical ocular drop instilled into each eye (OU), 4 times daily (QID), approximately 4 hours apart
Lumify®DRUGBrimonidine tartrate ophthalmic solution 0.025%, administered as 1 topical ocular drop instilled into each eye (OU), 4 times daily (QID), approximately 4 hours apart
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites11

Inclusion Criteria: 1. Voluntarily provide written informed consent 2. ≥18 years of age 3. Able and willing to follow instructions, including participation in all trial assessments and visits 4. History of vasoconstrictor (redness relief drops) use within the last 6 months, or a desire to use over ...

Countries:United States
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Recent Changes (Last 90 Days)

MEDIUMJun 28, 2026NCT06803654TRIAL_REMOVED: changed
MEDIUMJun 28, 2026NCT06803654TRIAL_REMOVED: changed
MEDIUMJun 28, 2026NCT06803654TRIAL_REMOVED: changed
MEDIUMJun 28, 2026NCT06803654TRIAL_REMOVED: changed

Frequently asked questions about BTOS-HA

What is BTOS-HA used for?

BTOS-HA is an investigational small molecule being developed for ocular redness. It is a brimonidine tartrate ophthalmic solution 0.025% combined with sodium hyaluronate, intended to reduce eye redness in adult patients. The drug is currently in Phase 3 clinical development and has not yet been approved by regulatory authorities.

Who makes BTOS-HA?

BTOS-HA is being developed by Bausch + Lomb Corporation, a company publicly traded under the ticker symbol BLCO. The company is conducting clinical trials to evaluate the efficacy and safety of this ophthalmic solution for the treatment of ocular redness in adult subjects.

What phase is BTOS-HA in?

BTOS-HA is in Phase 3 clinical development. A Phase 3 trial has been completed, comparing the drug to an active control in adult subjects with ocular redness. The drug remains investigational and is not yet approved for commercial use.

What clinical trials is BTOS-HA in?

BTOS-HA has one completed Phase 3 clinical trial, registered under NCT06803654. The study compared brimonidine tartrate ophthalmic solution 0.025% with sodium hyaluronate to Lumify in 578 adult subjects with ocular redness. The trial was conducted in the United States and was active-controlled.

How does BTOS-HA work?

BTOS-HA contains brimonidine tartrate, an alpha-adrenergic receptor agonist, combined with sodium hyaluronate. Brimonidine tartrate works by constricting blood vessels in the eye, which reduces redness. The sodium hyaluronate component provides lubrication and may enhance comfort during application.