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An Exploratory Crossover Clinical Trial to Compare the Activity of Reproxalap and Lifitegrast in a Dry Eye Disease Chamber

An Exploratory, Single-Center, Double-Masked, Crossover Clinical Trial to Assess Safety and Tolerability of 0.25% Reproxalap Ophthalmic Solution Compared to Xiidra® in Subjects With Dry Eye Disease in a Dry Eye Chamber

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05102409
Enrollment
56
Registered
2021-11-01
Start date
2021-09-09
Completion date
2021-10-25
Last updated
2025-02-28

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

Conditions

Dry Eye

Brief summary

An Exploratory, Single-Center, Double-Masked, Crossover Clinical Trial to Assess Safety and Tolerability of 0.25% Reproxalap Ophthalmic Solution Compared to Xiidra® in Subjects with Dry Eye Disease in a Dry Eye Chamber

Interventions

Reproxalap Ophthalmic Solution (0.25%) dosed once

DRUGXiidra® (5% lifitegrast ophthalmic solution)

Xiidra® (5% lifitegrast ophthalmic solution) dosed once

Sponsors

Aldeyra Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

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

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

1. Eighteen (18) to70 years of age at the time of screening (either gender and any race). 2. Ability to provide written informed consent. 3. Reported history of dry eye for at least 6 months prior to Visit 1.

Exclusion criteria

1. Diagnosis of an ongoing ocular infection (bacterial, viral, or fungal) or active ocular inflammation at Visit 1. 2. Contact lens use within 7 days of Visit 1 or anticipate using contact lenses during the trial. 3. A condition that the investigator feels may put the subject at significant risk may confound the study results or may interfere significantly with the subject's participation in the trial. 4. Inability or unwillingness to follow instructions, including participation in all study assessments/procedures and visits.

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Ocular DiscomfortThe efficacy assessment period was approximately every 5 minutes during a 45-minute dry eye chamber. Baseline was prior to dosing for each treatment period.Ocular discomfort (0 = none, 10 = extremely severe) was reported by patients in a dry eye chamber. Change from baseline was analyzed using a mixed model repeated measures (MMRM) analysis, with baseline as a covariate, and treatment and intra-chamber time point as factors.
Change From Baseline in Ocular ItchingThe efficacy assessment period was approximately every 5 minutes during a 45-minute dry eye chamber. Baseline was prior to dosing for each treatment period.Ocular itching (0 = none, 10 = extremely severe) was reported by patients in a dry eye chamber. Change from baseline was analyzed using a MMRM analysis, with baseline as a covariate, and treatment and intra-chamber time point as factors.

Countries

Canada

Participant flow

Pre-assignment details

Fifty-six subjects were enrolled in a two-period crossover design trial in which each subject received lifitegrast and reproxalp during separate treatment periods separated by approximately 7 days. Subjects were dosed once for each treatment period just before entry into a 45-minute dry eye chamber.

Participants by arm

ArmCount
Lifitegrast, Reproxalap
Subjects received a single dose of 5% lifitegrast ophthalmic solution just before dry eye chamber entry, followed by a seven-day washout. Subjects then received a single dose of 0.25% reproxalap just before dry eye chamber entry.
56
Total56

Baseline characteristics

CharacteristicLifitegrast, Reproxalap
Age, Continuous47.9 years
STANDARD_DEVIATION 12.4
Ethnicity (NIH/OMB)
Hispanic or Latino
9 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
47 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
12 Participants
Race (NIH/OMB)
Black or African American
6 Participants
Race (NIH/OMB)
More than one race
5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
33 Participants
Sex: Female, Male
Female
36 Participants
Sex: Female, Male
Male
20 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 540 / 56
other
Total, other adverse events
40 / 5412 / 56
serious
Total, serious adverse events
0 / 540 / 56

Outcome results

Primary

Change From Baseline in Ocular Discomfort

Ocular discomfort (0 = none, 10 = extremely severe) was reported by patients in a dry eye chamber. Change from baseline was analyzed using a mixed model repeated measures (MMRM) analysis, with baseline as a covariate, and treatment and intra-chamber time point as factors.

Time frame: The efficacy assessment period was approximately every 5 minutes during a 45-minute dry eye chamber. Baseline was prior to dosing for each treatment period.

Population: Safety population

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
ReproxalapChange From Baseline in Ocular Discomfort1.35 score on a scaleStandard Error 0.21
LifitegrastChange From Baseline in Ocular Discomfort2.07 score on a scaleStandard Error 0.25
Primary

Change From Baseline in Ocular Itching

Ocular itching (0 = none, 10 = extremely severe) was reported by patients in a dry eye chamber. Change from baseline was analyzed using a MMRM analysis, with baseline as a covariate, and treatment and intra-chamber time point as factors.

Time frame: The efficacy assessment period was approximately every 5 minutes during a 45-minute dry eye chamber. Baseline was prior to dosing for each treatment period.

Population: Safety population

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
ReproxalapChange From Baseline in Ocular Itching0.93 score on a scaleStandard Error 0.21
LifitegrastChange From Baseline in Ocular Itching1.54 score on a scaleStandard Error 0.25

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