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NCT04159935: SHEEPDOG

Investigating iLux Efficacy in Contact Lens Wearers With Evaporative Dry Eye Disease

Terminated Phase 4 Results posted Last updated 16 May 2023
What this trial tests

Phase 4 trial testing iLux® system in Dry Eye in 28 participants. Terminated before completion.

Timeline
15 November 2019
Primary endpoint
14 April 2020
14 April 2020

Quick facts

Lead sponsorUniversity of Waterloo
PhasePhase 4
StatusTerminated
Study typeINTERVENTIONAL
Allocationrandomized
Designparallel
Maskingnone
Primary purposetreatment
Enrollment28
Start date15 November 2019
Primary completion14 April 2020
Estimated completion14 April 2020
Sites1 location across Canada

Drugs / interventions tested

Conditions studied

Sponsor

University of Waterloo

Who can join

18 and older, any sex, with Dry Eye. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Mean Change in the Standard Patient Evaluation of Eye Dryness (SPEED) Questionnaire Score From Baseline to 1 Month Primary · 1 month

The mean change in dry eye symptoms from baseline based on the Standard Patient Evaluation of Eye Dryness (SPEED) questionnaire score was evaluated 1 month after iLux treatment. The SPEED questionnaire is a dry eye questionnaire developed to assess the frequency (0-3 scale, with higher values indicating more frequent symptoms) and severity (0-4 scale, with higher values indicating more severe symptoms) of patient symptoms. Scores range from 0-28. A higher SPEED score represents more frequent and/or more severe symptoms.

GroupValue95% CI
iLux® Treatment2.0± 1.7
Delayed iLux® Treatment-2.0± 6.2
Meibomian Gland Score at Baseline Secondary · Baseline

To determine the meibomian gland score, secretion characteristics of 15 meibomian glands along the lower eyelid were evaluated including five glands each in the temporal, central and nasal regions of the lower eyelid. For each gland, secretion characteristics were graded as 3 (clear liquid), 2 (cloudy liquid), 1 (inspissated/ toothpaste consistency) and 0 (no secretion). The total meibomian gland score is the sum of the grades for all 15 glands with a range between 0 and 45. A higher score reflects less meibomian gland dysfunction.

GroupValue95% CI
iLux® Treatment10.5± 4.7
Delayed iLux® Treatment10.5± 4.1
Meibomian Gland Score at 1 Month Secondary · 1 Month

To determine the meibomian gland score, secretion characteristics of 15 meibomian glands along the lower eyelid were evaluated including five glands each in the temporal, central and nasal regions of the lower eyelid. For each gland, secretion characteristics were graded as 3 (clear liquid), 2 (cloudy liquid), 1 (inspissated/ toothpaste consistency) and 0 (no secretion). The total meibomian gland score is the sum of the grades for all 15 glands with a range between 0 and 45. A higher score reflects less meibomian gland dysfunction.

GroupValue95% CI
iLux® Treatment21.3± 11.7
Delayed iLux® Treatment20.3± 10.1
Meibomian Gland Score at 3 Months Secondary · 3 Months

To determine the meibomian gland score, secretion characteristics of 15 meibomian glands along the lower eyelid were evaluated including five glands each in the temporal, central and nasal regions of the lower eyelid. For each gland, secretion characteristics were graded as 3 (clear liquid), 2 (cloudy liquid), 1 (inspissated/ toothpaste consistency) and 0 (no secretion). The total meibomian gland score is the sum of the grades for all 15 glands with a range between 0 and 45. A higher score reflects less meibomian gland dysfunction.

GroupValue95% CI
iLux® Treatment1515 – 15
Comfortable Contact Lens Wear Time at Baseline Secondary · Baseline

Participants reported how long the contact lenses on average were comfortable (comfortable wear time).

GroupValue95% CI
iLux® Treatment4.3± 2.6
Delayed iLux® Treatment2.3± 1.0
Comfortable Contact Lens Wear Time at 1 Month Secondary · 1 Month

Participants reported how long the contact lenses on average were comfortable (comfortable wear time).

GroupValue95% CI
iLux® Treatment7.0± 4.6
Delayed iLux® Treatment4.0± 2.0
Comfortable Contact Lens Wear Time at 3 Months Secondary · 3 Months

Participants reported how long the contact lenses on average were comfortable (comfortable wear time).

GroupValue95% CI
iLux® Treatment9.0± 3.6
Delayed iLux® Treatment2
Pre-lens Tear Break-up Time at Baseline Secondary · Baseline

The pre-lens tear film is the layer of tears located on top of the contact lens (i.e., between the eye lid and the contact lens). The time required for a dry spot to appear on the contact lens surface after blinking is referred to as the pre-lens tear break-up time. Three measurements are taken and averaged together. A higher number represents a longer pre-lens tear break-up time.

GroupValue95% CI
iLux® Treatment5.1± 2.9
Delayed iLux® Treatment4.0± 1.1
Pre-lens Tear Break-up Time at 1 Month Secondary · 1 Month

The pre-lens tear film is the layer of tears located on top of the contact lens (i.e., between the eye lid and the contact lens). The time required for a dry spot to appear on the contact lens surface after blinking is referred to as the pre-lens tear break-up time. Three measurements are taken and averaged together. A higher number represents a longer pre-lens tear break-up time.

GroupValue95% CI
iLux® Treatment5.8± 3.9
Delayed iLux® Treatment3.3± 1.3
Pre-lens Tear Break-up Time at 3 Months Secondary · 3 Months

The pre-lens tear film is the layer of tears located on top of the contact lens (i.e., between the eye lid and the contact lens). The time required for a dry spot to appear on the contact lens surface after blinking is referred to as the pre-lens tear break-up time. Three measurements are taken and averaged together. A higher number represents a longer pre-lens tear break-up time.

GroupValue95% CI
iLux® Treatment5.65.6 – 5.6
Average Contact Lens Wear Time at Baseline Secondary · Baseline

Participants reported how long they wore their contact lenses on average per day (total wear time).

GroupValue95% CI
iLux® Treatment10.5± 3.7
Delayed iLux® Treatment7.3± 2.5
Average Contact Lens Wear Time at 1 Month Secondary · 1 Month

Participants reported how long they wore their contact lenses on average per day (total wear time).

GroupValue95% CI
iLux® Treatment12.3± 5.5
Delayed iLux® Treatment8.0± 0.0

Sponsor's own description

The purpose of this clinical trial is to investigate the efficacy of a single iLux® treatment in symptomatic CL wearers who have DED (according to the TFOS DEWS II diagnostic criteria), of the evaporative dry eye disease subtype (EDE).

Publications & conference data

No peer-reviewed publications indexed yet for this trial.

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Other recruiting trials for Dry Eye

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Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing