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CompletedNCT05102409Updated Feb 28, 2025Results posted

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

A Phase 2 interventional study of Reproxalap Ophthalmic Solution (0.25%) and Xiidra® (5% lifitegrast ophthalmic solution) in Dry Eye, sponsored by Aldeyra Therapeutics, Inc.. Completed at 1 site in Canada. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2025-02-28.

Sponsored by Aldeyra Therapeutics, Inc. · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
56
Allocation
Non-randomized
Ages
18 Years to 70 Years
Sex
All
01

Study 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

02

Conditions studied

  • Dry Eye

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03

In context

Dry Eye Syndromes

1,325 studies on the registry are indexed under Dry Eye Syndromes; 193 are open to participants now.

This study's enrollment of 56 is close to the median of 60 across 1,103 interventional studies indexed under Dry Eye Syndromes.

Browse Dry Eye Syndromes studies →

Lead sponsor

Aldeyra Therapeutics, Inc. is the lead sponsor of 35 studies on the registry; 1 is open to participants now.

Of its 29 completed or terminated interventional studies of FDA-regulated products, 24 (83%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

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

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.
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Crossover assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
56 participants (actual)

Study arms

  • Experimental
    Reproxalap Ophthalmic Solution (0.25%)

    Single dose

    Drug: Reproxalap Ophthalmic Solution (0.25%)

  • Active comparator
    Xiidra® (5% lifitegrast ophthalmic solution)

    Single dose

    Drug: Xiidra® (5% lifitegrast ophthalmic solution)

Interventions

06

What researchers measure

Primary outcomes

  1. 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.

  2. 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.

07

Results

Posted Feb 28, 2025

Participant flow

Participant flow — Overall Study
MilestoneLifitegrast, Reproxalap
Started56
Completed54
Not completed2

Outcome measures

PrimaryChange 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.
Reported as:
Least squares mean · score on a scale
Change From Baseline in Ocular Discomfort
score on a scaleReproxalapLifitegrast
Change From Baseline in Ocular Discomfort1.35 ± 0.212.07 ± 0.25
PrimaryChange 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.
Reported as:
Least squares mean · score on a scale
Change From Baseline in Ocular Itching
score on a scaleReproxalapLifitegrast
Change From Baseline in Ocular Itching0.93 ± 0.211.54 ± 0.25

Adverse events

Collected over One day for each intervention. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Reproxalap0/54 (0%)0/54 (0%)40/54 (74.1%)
Lifitegrast0/56 (0%)0/56 (0%)12/56 (21.4%)
Most frequent other events
Most frequent other events
EventReproxalapLifitegrast
General DisordersGeneral disorders40/546/56
Nervous System DisordersNervous system disorders0/546/56

Baseline characteristics

Enrolled subjects

Age, Continuous
Age, Continuous(years)Lifitegrast, Reproxalap
Mean47.9 ± 12.4
Sex: Female, Male
Sex: Female, Male(Participants)Lifitegrast, Reproxalap
Female36
Male20
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Lifitegrast, Reproxalap
Hispanic or Latino9
Not Hispanic or Latino47
Unknown or Not Reported0
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Lifitegrast, Reproxalap
American Indian or Alaska Native0
Asian12
Native Hawaiian or Other Pacific Islander0
Black or African American6
White33
More than one race5
Unknown or Not Reported0
08

Study locations

1 site
  • Cliantha Research
    Mississauga, Ontario, Canada
09

References and documents

Study documents

  • Protocol and statistical analysis plan · Jun 29, 2021

Documents are hosted by the registry — open the source record to download them.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 28, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT05102409
Responsible party
Sponsor
First posted
Nov 1, 2021
Start date
Sep 9, 2021
Primary completion
Oct 25, 2021
Completion
Oct 25, 2021
Results posted
Feb 28, 2025
Last update
Feb 28, 2025

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Reproxalap

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