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Safety and Efficacy of KPI-121 in Subjects With Dry Eye Disease

A Phase 3, Double-Masked, Randomized, Controlled Study of KPI-121 0.25% Ophthalmic Suspension Compared to Vehicle in Subjects With Dry Eye Disease

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02813265
Acronym
STRIDE 1
Enrollment
918
Registered
2016-06-24
Start date
2016-06-30
Completion date
2017-10-31
Last updated
2021-02-03

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

Conditions

Dry Eye Syndromes, Keratoconjunctivitis Sicca

Keywords

Ocular Discomfort, Pain, Corticosteroid, Hyperemia, Dry Eye

Brief summary

The primary purpose of this study is to determine the efficacy and safety of KPI-121 0.25% ophthalmic suspension compared to vehicle (placebo) in subjects who have a documented clinical diagnosis of dry eye disease. The product will be studied over 14 days, with 1-2 drops instilled in each eye four times daily (QID).

Detailed description

This is a Phase 3, multi-center, double-masked, randomized, vehicle-controlled, parallel-group study designed to evaluate the safety and efficacy of KPI-121 0.25% ophthalmic suspension versus vehicle in subjects with dry eye disease.

Interventions

Sponsors

Kala Pharmaceuticals, Inc.
Lead SponsorINDUSTRY

Study design

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

Eligibility

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

Inclusion criteria

* Have a documented clinical diagnosis of dry eye disease in both eyes

Exclusion criteria

* Known hypersensitivity or contraindication to the investigational product(s) or components * History of glaucoma, Intraocular Pressure (IOP) \>21 mmHg at the screening or randomization visits, or being treated for glaucoma in either eye. * Diagnosis of: ongoing ocular infection; severe/serious ocular condition that in judgment of Investigator could confound study assessments or limit compliance; or have been exposed to an investigational drug within 30 days prior to screening. * In the opinion of the Investigator or study coordinator, be unwilling or unable to comply with study protocol or unable to successfully instill eye drops.

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline/Visit 2 (Day 1) in Bulbar Conjunctival Hyperemia at Visit 4 (Day 15)Baseline/Visit 2 (Day 1) and to Visit 4 (Day 15)Comparison of mean bulbar conjunctival hyperemia between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-4 grading scale. The grading scale was based on the Cornea and Contact Lens Research Unit Grading Scale where 0 = none, 1 = very slight, 2 = slight, 3 = moderate and 4 = severe.
Change From Baseline/Visit 2 (Day 1) in Ocular Discomfort Severity at Visit 4 (Day 15)Baseline/Visit 2 (Day 1) and to Visit 4 (Day 15)Comparison of mean ocular discomfort severity between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-100 visual analog grading scale where 0 was better and 100 was worse.
Change From Baseline/Visit 2 (Day 1) in Corneal Fluorescein Staining Score at Visit 4 (Day 15)Baseline/Visit 2 (Day 1) and to Visit 4 (Day 15)Comparison of mean corneal fluorescein staining between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using methods developed by the National Eye Institute (NEI) Dry Eye Workshop in evaluating 5 regions of the cornea (superior, inferior, nasal, temporal and central) using a 0-3 grading scale, where 0 = no visible staining, 1 = Mild, 2 = moderate and 3 = severe.
Change From Baseline/Visit 2 (Day 1) Ocular Discomfort Severity at Visit 4 (Day 15) in the Subgroup of Participants With More Severe Ocular DiscomfortBaseline/Visit 2 (Day 1) and to Visit 4 (Day 15)Comparison of mean ocular discomfort severity between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-100 visual analog grading scale where 0 was better and 100 was worse, in a sub-group of participants with more severe ocular discomfort at baseline.

Secondary

MeasureTime frameDescription
Change in Conjunctival Hyperemia Scores at Visit 4 (Day 15) in the Subgroup of Participants With More Severe Ocular Discomfort at Baseline (Day 1)Baseline/Visit 2 (Day 1) and to Visit 4 (Day 15)Comparison of mean bulbar conjunctival hyperemia between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-4 grading scale. The grading scale was based on the Cornea and Contact Lens Research Unit Grading Scale where 0 = none, 1 = very slight, 2 = slight, 3 = moderate and 4 = severe.
Proportion of Subjects With ≥1 Improvement in Conjunctival Hyperemia at Visit 4 (Day 15)Baseline/Visit 2 (Day 1) and to Visit 4 (Day 15)Proportion of subjects with ≥1 improvement from baseline in conjunctival hyperemia scores. The grading scale was based on the Cornea and Contact Lens Research Unit Grading Scale where 0 = none, 1 = very slight, 2 = slight, 3 = moderate and 4 = severe.
Change From Baseline/Visit 2 (Day 1) Conjunctival Hyperemia Scores at Visit 4 (Day 15) for the Mean of All Regions (Nasal, Temporal, Frontal)Baseline/Visit 2 (Day 1) and to Visit 4 (Day 15)Comparison of mean bulbar conjunctival hyperemia between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-4 grading scale. The grading scale was based on the Cornea and Contact Lens Research Unit Grading Scale where 0 = none, 1 = very slight, 2 = slight, 3 = moderate and 4 = severe.
Change in Ocular Discomfort Severity Scores Prior to Visit 3 (Day 8) Minus the Mean of the Scores to Baseline/Visit 2 (Day 1)Baseline/Visit 2 (Day 1) and to Visit 3 (Day 8)Comparison of mean ocular discomfort severity between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-100 visual analog grading scale where 0 was better and 100 was worse.
Change in Ocular Discomfort Severity Scores Prior to Visit 3 (Day 8) Minus Baseline/Visit 2 (Day 1) in the Subgroup of Participants With More Severe Ocular Discomfort.Baseline/Visit 2 (Day 1) and to Visit 3 (Day 8)Comparison of mean ocular discomfort severity between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-100 visual analog grading scale where 0 was better and 100 was worse.
Change in Ocular Discomfort Severity Scores on Day 4 (Diary) Minus Baseline/Visit 2 (Day 1)Baseline/Visit 2 (Day 1) and to Visit 3 (Day 8)Comparison of mean ocular discomfort severity between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-100 visual analog grading scale where 0 was better and 100 was worse.
Change in Ocular Discomfort Severity Scores on Day 4 Day 4 (Diary) Minus Baseline/Visit 2 (Day 1) in the Subgroup of Participants With More Severe Ocular DiscomfortBaseline/Visit 2 (Day 1) and to Visit 3 (Day 8)Comparison of mean ocular discomfort severity between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-100 visual analog grading scale where 0 was better and 100 was worse, in a sub-group of participants with more severe ocular discomfort at baseline.
Change From Baseline/Visit 2 (Day 1) in Conjunctival Hyperemia Scores With a Day 1 Conjunctival Hyperemia Score of ≥ 2 in the Subgroup of Participants With More Severe Ocular DiscomfortBaseline/Visit 2 (Day 1) and to Visit 4 (Day 15)Comparison of mean bulbar conjunctival hyperemia between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-4 grading scale in a sub-group of participants with more severe ocular discomfort at baseline.. The grading scale was based on the Cornea and Contact Lens Research Unit Grading Scale where 0 = none, 1 = very slight, 2 = slight, 3 = moderate and 4 = severe.
Subjects With a Grade of 0 in Conjunctival Hyperemia Score at Visit 4 (Day 15)Visit 4 (Day 15)Comparison of mean bulbar conjunctival hyperemia between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-4 grading scale. The grading scale was based on the Cornea and Contact Lens Research Unit Grading Scale where 0 = none, 1 = very slight, 2 = slight, 3 = moderate and 4 = severe

Countries

United States

Participant flow

Pre-assignment details

918 subjects were randomized, 3 of which were not included in any analysis population as they had participated in more than one study. The data for the second-participation for these 3 individuals were not included in any analysis population as agreed upon with the FDA.

Participants by arm

ArmCount
KPI-121 0.25% Ophthalmic Suspension
Participants randomized to KPI-121 0.25% Ophthalmic Suspension
459
Vehicle of KPI-121 0.25% Ophthalmic Suspension
Participants randomized to Vehicle of KPI-121 0.25% Ophthalmic Suspension
456
Total915

Baseline characteristics

CharacteristicKPI-121 0.25% Ophthalmic SuspensionTotalVehicle of KPI-121 0.25% Ophthalmic Suspension
Age, Continuous58.1 Years
STANDARD_DEVIATION 15.41
58.2 Years
STANDARD_DEVIATION 15.03
58.3 Years
STANDARD_DEVIATION 14.66
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants2 Participants0 Participants
Race (NIH/OMB)
Asian
18 Participants36 Participants18 Participants
Race (NIH/OMB)
Black or African American
69 Participants140 Participants71 Participants
Race (NIH/OMB)
More than one race
1 Participants2 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants2 Participants1 Participants
Race (NIH/OMB)
Unknown or Not Reported
6 Participants10 Participants4 Participants
Race (NIH/OMB)
White
362 Participants723 Participants361 Participants
Region of Enrollment
United States
459 participants915 participants456 participants
Sex: Female, Male
Female
367 Participants726 Participants359 Participants
Sex: Female, Male
Male
92 Participants189 Participants97 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 4590 / 456
other
Total, other adverse events
66 / 45962 / 456
serious
Total, serious adverse events
0 / 4590 / 456

Outcome results

Primary

Change From Baseline/Visit 2 (Day 1) in Bulbar Conjunctival Hyperemia at Visit 4 (Day 15)

Comparison of mean bulbar conjunctival hyperemia between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-4 grading scale. The grading scale was based on the Cornea and Contact Lens Research Unit Grading Scale where 0 = none, 1 = very slight, 2 = slight, 3 = moderate and 4 = severe.

Time frame: Baseline/Visit 2 (Day 1) and to Visit 4 (Day 15)

Population: Intent to Treat population minus subjects in each treatment group that discontinued the study by this time point or otherwise did not have this assessment completed

ArmMeasureValue (MEAN)Dispersion
KPI-121 0.25% Ophthalmic SuspensionChange From Baseline/Visit 2 (Day 1) in Bulbar Conjunctival Hyperemia at Visit 4 (Day 15)-0.4049 score on a scaleStandard Deviation 0.65062
Vehicle of KPI-121 0.25% Ophthalmic SuspensionChange From Baseline/Visit 2 (Day 1) in Bulbar Conjunctival Hyperemia at Visit 4 (Day 15)-0.1574 score on a scaleStandard Deviation 0.60704
Primary

Change From Baseline/Visit 2 (Day 1) in Corneal Fluorescein Staining Score at Visit 4 (Day 15)

Comparison of mean corneal fluorescein staining between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using methods developed by the National Eye Institute (NEI) Dry Eye Workshop in evaluating 5 regions of the cornea (superior, inferior, nasal, temporal and central) using a 0-3 grading scale, where 0 = no visible staining, 1 = Mild, 2 = moderate and 3 = severe.

Time frame: Baseline/Visit 2 (Day 1) and to Visit 4 (Day 15)

Population: Intent to Treat population minus subjects in each treatment group that discontinued the study by this time point or otherwise did not have this assessment completed

ArmMeasureValue (MEAN)Dispersion
KPI-121 0.25% Ophthalmic SuspensionChange From Baseline/Visit 2 (Day 1) in Corneal Fluorescein Staining Score at Visit 4 (Day 15)-0.5 score on a scaleStandard Deviation 0.84
Vehicle of KPI-121 0.25% Ophthalmic SuspensionChange From Baseline/Visit 2 (Day 1) in Corneal Fluorescein Staining Score at Visit 4 (Day 15)-0.4 score on a scaleStandard Deviation 0.79
Primary

Change From Baseline/Visit 2 (Day 1) in Ocular Discomfort Severity at Visit 4 (Day 15)

Comparison of mean ocular discomfort severity between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-100 visual analog grading scale where 0 was better and 100 was worse.

Time frame: Baseline/Visit 2 (Day 1) and to Visit 4 (Day 15)

Population: Intent to Treat population minus subjects in each treatment group that discontinued the study by this time point or otherwise did not have this assessment completed

ArmMeasureValue (MEAN)Dispersion
KPI-121 0.25% Ophthalmic SuspensionChange From Baseline/Visit 2 (Day 1) in Ocular Discomfort Severity at Visit 4 (Day 15)-14.53 score on a scaleStandard Deviation 20.636
Vehicle of KPI-121 0.25% Ophthalmic SuspensionChange From Baseline/Visit 2 (Day 1) in Ocular Discomfort Severity at Visit 4 (Day 15)-9.16 score on a scaleStandard Deviation 17.924
Primary

Change From Baseline/Visit 2 (Day 1) Ocular Discomfort Severity at Visit 4 (Day 15) in the Subgroup of Participants With More Severe Ocular Discomfort

Comparison of mean ocular discomfort severity between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-100 visual analog grading scale where 0 was better and 100 was worse, in a sub-group of participants with more severe ocular discomfort at baseline.

Time frame: Baseline/Visit 2 (Day 1) and to Visit 4 (Day 15)

Population: Sub-group of Intent to Treat population with more severe ocular discomfort minus subjects in each treatment group that discontinued the study by this time point or otherwise did not have this assessment completed.

ArmMeasureValue (MEAN)Dispersion
KPI-121 0.25% Ophthalmic SuspensionChange From Baseline/Visit 2 (Day 1) Ocular Discomfort Severity at Visit 4 (Day 15) in the Subgroup of Participants With More Severe Ocular Discomfort-16.67 score on a scaleStandard Deviation 21.937
Vehicle of KPI-121 0.25% Ophthalmic SuspensionChange From Baseline/Visit 2 (Day 1) Ocular Discomfort Severity at Visit 4 (Day 15) in the Subgroup of Participants With More Severe Ocular Discomfort-10.76 score on a scaleStandard Deviation 18.037
Secondary

Change From Baseline/Visit 2 (Day 1) Conjunctival Hyperemia Scores at Visit 4 (Day 15) for the Mean of All Regions (Nasal, Temporal, Frontal)

Comparison of mean bulbar conjunctival hyperemia between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-4 grading scale. The grading scale was based on the Cornea and Contact Lens Research Unit Grading Scale where 0 = none, 1 = very slight, 2 = slight, 3 = moderate and 4 = severe.

Time frame: Baseline/Visit 2 (Day 1) and to Visit 4 (Day 15)

Population: Intent to Treat population minus subjects in each treatment group that discontinued the study by this time point or otherwise did not have this assessment completed.

ArmMeasureValue (MEAN)Dispersion
KPI-121 0.25% Ophthalmic SuspensionChange From Baseline/Visit 2 (Day 1) Conjunctival Hyperemia Scores at Visit 4 (Day 15) for the Mean of All Regions (Nasal, Temporal, Frontal)-0.2980 score on a scaleStandard Deviation 0.59018
Vehicle of KPI-121 0.25% Ophthalmic SuspensionChange From Baseline/Visit 2 (Day 1) Conjunctival Hyperemia Scores at Visit 4 (Day 15) for the Mean of All Regions (Nasal, Temporal, Frontal)-0.0421 score on a scaleStandard Deviation 0.51921
Secondary

Change From Baseline/Visit 2 (Day 1) in Conjunctival Hyperemia Scores With a Day 1 Conjunctival Hyperemia Score of ≥ 2 in the Subgroup of Participants With More Severe Ocular Discomfort

Comparison of mean bulbar conjunctival hyperemia between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-4 grading scale in a sub-group of participants with more severe ocular discomfort at baseline.. The grading scale was based on the Cornea and Contact Lens Research Unit Grading Scale where 0 = none, 1 = very slight, 2 = slight, 3 = moderate and 4 = severe.

Time frame: Baseline/Visit 2 (Day 1) and to Visit 4 (Day 15)

Population: Sub-group of Intent to Treat population with more severe ocular discomfort minus subjects in each treatment group that discontinued the study by this time point or otherwise did not have this assessment completed.

ArmMeasureValue (MEAN)Dispersion
KPI-121 0.25% Ophthalmic SuspensionChange From Baseline/Visit 2 (Day 1) in Conjunctival Hyperemia Scores With a Day 1 Conjunctival Hyperemia Score of ≥ 2 in the Subgroup of Participants With More Severe Ocular Discomfort-0.47 score on a scaleStandard Deviation 0.631
Vehicle of KPI-121 0.25% Ophthalmic SuspensionChange From Baseline/Visit 2 (Day 1) in Conjunctival Hyperemia Scores With a Day 1 Conjunctival Hyperemia Score of ≥ 2 in the Subgroup of Participants With More Severe Ocular Discomfort-0.22 score on a scaleStandard Deviation 0.577
Secondary

Change in Conjunctival Hyperemia Scores at Visit 4 (Day 15) in the Subgroup of Participants With More Severe Ocular Discomfort at Baseline (Day 1)

Comparison of mean bulbar conjunctival hyperemia between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-4 grading scale. The grading scale was based on the Cornea and Contact Lens Research Unit Grading Scale where 0 = none, 1 = very slight, 2 = slight, 3 = moderate and 4 = severe.

Time frame: Baseline/Visit 2 (Day 1) and to Visit 4 (Day 15)

Population: Sub-group of Intent to Treat population with more severe ocular discomfort minus subjects in each treatment group that discontinued the study by this time point or otherwise did not have this assessment completed.

ArmMeasureValue (MEAN)Dispersion
KPI-121 0.25% Ophthalmic SuspensionChange in Conjunctival Hyperemia Scores at Visit 4 (Day 15) in the Subgroup of Participants With More Severe Ocular Discomfort at Baseline (Day 1)-0.4648 score on a scaleStandard Deviation 0.6677
Vehicle of KPI-121 0.25% Ophthalmic SuspensionChange in Conjunctival Hyperemia Scores at Visit 4 (Day 15) in the Subgroup of Participants With More Severe Ocular Discomfort at Baseline (Day 1)-0.2045 score on a scaleStandard Deviation 0.62567
Secondary

Change in Ocular Discomfort Severity Scores on Day 4 Day 4 (Diary) Minus Baseline/Visit 2 (Day 1) in the Subgroup of Participants With More Severe Ocular Discomfort

Comparison of mean ocular discomfort severity between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-100 visual analog grading scale where 0 was better and 100 was worse, in a sub-group of participants with more severe ocular discomfort at baseline.

Time frame: Baseline/Visit 2 (Day 1) and to Visit 3 (Day 8)

Population: Sub-group of Intent to Treat population with more severe ocular discomfort minus subjects in each treatment group that discontinued the study by this time point or otherwise did not have this assessment completed.

ArmMeasureValue (MEAN)Dispersion
KPI-121 0.25% Ophthalmic SuspensionChange in Ocular Discomfort Severity Scores on Day 4 Day 4 (Diary) Minus Baseline/Visit 2 (Day 1) in the Subgroup of Participants With More Severe Ocular Discomfort-8.48 score on a scaleStandard Deviation 17.412
Vehicle of KPI-121 0.25% Ophthalmic SuspensionChange in Ocular Discomfort Severity Scores on Day 4 Day 4 (Diary) Minus Baseline/Visit 2 (Day 1) in the Subgroup of Participants With More Severe Ocular Discomfort-5.20 score on a scaleStandard Deviation 14.903
Secondary

Change in Ocular Discomfort Severity Scores on Day 4 (Diary) Minus Baseline/Visit 2 (Day 1)

Comparison of mean ocular discomfort severity between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-100 visual analog grading scale where 0 was better and 100 was worse.

Time frame: Baseline/Visit 2 (Day 1) and to Visit 3 (Day 8)

Population: Intent to Treat population minus subjects in each treatment group that discontinued the study by this time point or otherwise did not have this assessment completed.

ArmMeasureValue (MEAN)Dispersion
KPI-121 0.25% Ophthalmic SuspensionChange in Ocular Discomfort Severity Scores on Day 4 (Diary) Minus Baseline/Visit 2 (Day 1)-6.60 score on a scaleStandard Deviation 16.71
Vehicle of KPI-121 0.25% Ophthalmic SuspensionChange in Ocular Discomfort Severity Scores on Day 4 (Diary) Minus Baseline/Visit 2 (Day 1)-3.20 score on a scaleStandard Deviation 15.125
Secondary

Change in Ocular Discomfort Severity Scores Prior to Visit 3 (Day 8) Minus Baseline/Visit 2 (Day 1) in the Subgroup of Participants With More Severe Ocular Discomfort.

Comparison of mean ocular discomfort severity between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-100 visual analog grading scale where 0 was better and 100 was worse.

Time frame: Baseline/Visit 2 (Day 1) and to Visit 3 (Day 8)

Population: Sub-group of Intent to Treat population with more severe ocular discomfort minus subjects in each treatment group that discontinued the study by this time point or otherwise did not have this assessment completed.

ArmMeasureValue (MEAN)Dispersion
KPI-121 0.25% Ophthalmic SuspensionChange in Ocular Discomfort Severity Scores Prior to Visit 3 (Day 8) Minus Baseline/Visit 2 (Day 1) in the Subgroup of Participants With More Severe Ocular Discomfort.-9.90 score on a scaleStandard Deviation 17.835
Vehicle of KPI-121 0.25% Ophthalmic SuspensionChange in Ocular Discomfort Severity Scores Prior to Visit 3 (Day 8) Minus Baseline/Visit 2 (Day 1) in the Subgroup of Participants With More Severe Ocular Discomfort.-6.38 score on a scaleStandard Deviation 15.289
Secondary

Change in Ocular Discomfort Severity Scores Prior to Visit 3 (Day 8) Minus the Mean of the Scores to Baseline/Visit 2 (Day 1)

Comparison of mean ocular discomfort severity between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-100 visual analog grading scale where 0 was better and 100 was worse.

Time frame: Baseline/Visit 2 (Day 1) and to Visit 3 (Day 8)

Population: Intent to Treat population minus subjects in each treatment group that discontinued the study by this time point or otherwise did not have this assessment completed.

ArmMeasureValue (MEAN)Dispersion
KPI-121 0.25% Ophthalmic SuspensionChange in Ocular Discomfort Severity Scores Prior to Visit 3 (Day 8) Minus the Mean of the Scores to Baseline/Visit 2 (Day 1)-8.12 score on a scaleStandard Deviation 16.88
Vehicle of KPI-121 0.25% Ophthalmic SuspensionChange in Ocular Discomfort Severity Scores Prior to Visit 3 (Day 8) Minus the Mean of the Scores to Baseline/Visit 2 (Day 1)-4.81 score on a scaleStandard Deviation 14.851
Secondary

Proportion of Subjects With ≥1 Improvement in Conjunctival Hyperemia at Visit 4 (Day 15)

Proportion of subjects with ≥1 improvement from baseline in conjunctival hyperemia scores. The grading scale was based on the Cornea and Contact Lens Research Unit Grading Scale where 0 = none, 1 = very slight, 2 = slight, 3 = moderate and 4 = severe.

Time frame: Baseline/Visit 2 (Day 1) and to Visit 4 (Day 15)

Population: Intent to Treat population minus subjects in each treatment group that discontinued the study by this time point or otherwise did not have this assessment completed.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
KPI-121 0.25% Ophthalmic SuspensionProportion of Subjects With ≥1 Improvement in Conjunctival Hyperemia at Visit 4 (Day 15)189 Participants
Vehicle of KPI-121 0.25% Ophthalmic SuspensionProportion of Subjects With ≥1 Improvement in Conjunctival Hyperemia at Visit 4 (Day 15)98 Participants
Secondary

Subjects With a Grade of 0 in Conjunctival Hyperemia Score at Visit 4 (Day 15)

Comparison of mean bulbar conjunctival hyperemia between the KPI-121 0.25% ophthalmic suspension group and the vehicle group using a 0-4 grading scale. The grading scale was based on the Cornea and Contact Lens Research Unit Grading Scale where 0 = none, 1 = very slight, 2 = slight, 3 = moderate and 4 = severe

Time frame: Visit 4 (Day 15)

Population: Intent to Treat population minus subjects in each treatment group that discontinued the study by this time point or otherwise did not have this assessment completed.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
KPI-121 0.25% Ophthalmic SuspensionSubjects With a Grade of 0 in Conjunctival Hyperemia Score at Visit 4 (Day 15)27 Participants
Vehicle of KPI-121 0.25% Ophthalmic SuspensionSubjects With a Grade of 0 in Conjunctival Hyperemia Score at Visit 4 (Day 15)16 Participants

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