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Brimonidine 0.025%/ Ketotifen 0.035%

Phase 3

Allergic Conjunctivitis | Small molecule | Ophthalmology |Bausch + Lomb Corporation|Last Updated: Jul 10, 2025

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials2
Total Enrollment700

FDA Designations

No designations recorded

Clinical trial landscape

Brimonidine 0.025%/ Ketotifen 0.035% · 3 trials · 2 indications

Phase 3 3
NCT05815758Evaluation of the Safety and Pharmacokinetics of Brimonidine Tartrate 0.025%/Ketotifen Fumarate 0.035% Combination Ophthalmic SolutionAllergic Conjunctivitis
COMPLETED512 Analytics
NCT05591755Evaluation of Brimonidine Tartrate/Ketotifen Fumarate Combination in Adults With Seasonal Allergic ConjunctivitisSeasonal Allergic Conjunctivitis
COMPLETED229 Analytics
NCT05579730Evaluation of Brimonidine Tartrate/Ketotifen Fumarate Combination for the Treatment of Allergic ConjunctivitisAllergic Conjunctivitis
COMPLETED188 Analytics
PHASE3COMPLETED
Evaluation of the Safety and Pharmacokinetics of Brimonidine Tartrate 0.025%/Ketotifen Fumarate 0.035% Combination Ophthalmic Solution
Allergic ConjunctivitisUnlock trial analytics
PHASE3COMPLETED
Evaluation of Brimonidine Tartrate/Ketotifen Fumarate Combination in Adults With Seasonal Allergic Conjunctivitis
Seasonal Allergic ConjunctivitisUnlock trial analytics
PHASE3COMPLETED
Evaluation of Brimonidine Tartrate/Ketotifen Fumarate Combination for the Treatment of Allergic Conjunctivitis
Allergic ConjunctivitisUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants With Treatment Emergent Adverse Events (TEAEs)
Baseline up to Day 42

TEAE is defined as any untoward medical occurrence or undesirable event(s) that begins or worsens following administration of the study drug, whether or not considered related to the treatment by the Investigator. A TEAE is considered serious if, in the view of the Investigator or Sponsor, it results in any of the following outcomes: death, a life-threatening TEAE, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, a congenital anomaly or birth defect, an important medical event that jeopardized the participant and required medical intervention, or sight-threatening (possibly resulting in persistent or significant loss of vision)

Ocular Itching Symptom Score
Assessed up to 480 minutes post-instillation of assigned IP

Ocular itching score evaluated by the subject at 10(±1), 30(±1), 60(±5), 360(±5), 420(±5), and 480(±5) minutes post-instillation of assigned IP at Visit 2 (0-4 scale, allowing half unit increments), with 4 is the worse outcome.

Ocular Redness Measured by Ocular Itching Scale
Assessed up to 480 minutes post-instillation of assigned IP

Ocular redness evaluated by the Investigator using slit lamp at 10(±1), 30(±1), 60(±5), 360(±5), 420(±5), and 480(±5) minutes post-instillation of assigned IP at Visit 2 (0-4 scale, allowing half unit increments), with 4 being the worse outcome.

Ocular Itching
Assessed at Visit 4b on day 1 (duration of action CAC at 8 hours post-instillation of study medication) and Visit 5 on day 15 (onset of action CAC at 15 minutes post-instillation of study medication).

Ocular itching score (measured on a 0-4 unit scale, allowing half-unit increments; average score of the subject's two eyes) assessed by the subjects at 3 (±1), 5 (±1), and 7 (±1) minutes post-CAC.

Conjunctival Redness
Assessed at Visit 4b on day 1 (duration of action CAC at 8 hours post-instillation of study medication) and Visit 5 on day 15 (onset of action CAC at 15 minutes post-instillation of study medication).

Conjunctival redness score (measured on a 0-4unit scale, allowing half-unit increments; average score of the subject's two eyes) assessed by investigator at 7 (±1), 15 (±1), and 20 (±1) minutes post-CAC.

Secondary Endpoints

Drop Comfort Assessment as Assessed by the Participant
At dose installation, 30 seconds post dose installation, and 1-minute post dose installation on Day 1, Day 8 and Day 22
Plasma Concentration: Brimonidine
Pre-Instillation and 15 min, 30 min, 1 hr, 2hr and 4hrs post-instillation on Day 1 and on Day 22.
Plasma Concentration: Ketotifen
Pre-Instillation and 15 min, 30 min, 1 hr, 2hr and 4hrs post-instillation on Day 1 and on Day 22.
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Brimonidine tartrate 0.025%/ketotifen fumarate 0.035% combination ophthalmic solutionEXPERIMENTAL -
Vehicle ophthalmic solutionACTIVE_COMPARATOR -
Brimonidine Tartrate 0.025%/ Ketotifen Fumarate 0.035% Ophthalmic SolutionEXPERIMENTALBrimonidine Tartrate 0.025%/ Ketotifen Fumarate 0.035% Ophthalmic Solution
Ketotifen fumarate ophthalmic solution 0.035%EXPERIMENTALKetotifen fumarate ophthalmic solution 0.035%
Brimonidine tartrate ophthalmic solution 0.025%EXPERIMENTALBrimonidine tartrate ophthalmic solution 0.025%
CombinationEXPERIMENTALBrimonidine tartrate 0.025%/ketotifen fumarate 0.035% combination ophthalmic solution
Ketotifen fumarateACTIVE_COMPARATORketotifen fumarate 0.035% ophthalmic solution
Brimonidine tartrateACTIVE_COMPARATORbrimonidine tartrate 0.025% ophthalmic solution
VehiclePLACEBO_COMPARATORvehicle ophthalmic solution

Interventions

NameTypeDescription
Brimonidine Tartrate 0.025%/Ketotifen Fumarate 0.035% Ophthalmic Solution (Combo)DRUGBrimonidine Tartrate 0.025%/Ketotifen Fumarate 0.035% Ophthalmic Solution (Combo)
Vehicle of brimonidine tartrate 0.025%/ketotifen fumarate 0.035% ophthalmic solutionDRUGVehicle of brimonidine tartrate 0.025%/ketotifen fumarate 0.035% ophthalmic solution
Brimonidine Tartrate 0.025%/ Ketotifen Fumarate 0.035% Ophthalmic SolutionDRUGBrimonidine Tartrate 0.025%/ Ketotifen Fumarate 0.035% Ophthalmic Solution
Ketotifen fumarate ophthalmic solution 0.035%DRUGKetotifen fumarate ophthalmic solution 0.035%
Brimonidine tartrate ophthalmic solution 0.025%DRUGBrimonidine tartrate ophthalmic solution 0.025%
Experimental: Vehicle ophthalmic solutionDRUGExperimental: Vehicle ophthalmic solution
Brimonidine tartrate 0.025%/ketotifen fumarate 0.035%DRUGcombination ophthalmic solution
Brimonidine Tartrate 0.025%DRUGophthalmic Solution
Ketotifen Fumarate 0.035%DRUGophthalmic Solution
VehicleDRUGophthalmic Solution
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Eligibility Criteria

Age Range5 Years to N/A
SexALL
Healthy VolunteersYes
Study Sites7

Inclusion Criteria: 1. be at least 5 years of age at Screening Visit or Visit 1 (if Screening and Visit 1 are done on the same day), of either sex and any race (a government issued ID and/or birth certificate will be verified at the time ICF is signed); 2. provide written informed consent and sign ...

Countries:United States
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