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Completed

NCT Number: NCT03055650

iLux Treatment for Meibomian Gland Dysfunction (MGD)

The purpose of this study is to assess changes in meibomian gland function and evaporative dry eye symptoms after treatment with the iLux medical device.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

TearFilm Investigative Site, Encinitas, California, United States

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About this study

Alcon Research, LLC, acquired TearFilm Innovations, Inc., in December 2018. This study was designed and conducted by TearFilm Innovations, Inc. The study results were collected, analyzed, and provided by TearFilm Innovations, Inc., to Alcon Research, LLC.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age 18 years and older of any gender or race
  • Provision of written informed consent prior to study participation
  • Willingness and ability to return for all study visits
  • A positive history of self-reported dry eye symptoms for three months prior to the study using the Standard Patient Evaluation of Eye Dryness (SPEED) questionnaire, and a score of > 6.
  • Need for regular use of artificial tears, lubricants, or rewetting drops in both eyes
  • Evidence of meibomian gland (MG) obstruction, based on a total meibomian gland secretion score of < 12 out of a maximum score of 45, for 15 glands (5 nasal, 5 medial, 5 temporal) of the lower eyelid of each eye. Glands expressed & graded from 0 to 3 (0 = no secretion, 1 = inspissated, 2 = cloudy, 3 = clear liquid).

Exclusion criteria

  • History of ocular surgery including intraocular, oculo-plastic, corneal or refractive surgery within 1 year
  • Ocular trauma or herpetic keratitis within the previous 3 months
  • Cicatricial lid margin disease identified via slit lamp examination, including pemphigoid, symblepharon, etc.
  • Active ocular infection (e.g., viral, bacterial, mycobacterial, protozoan, or fungal infection of the cornea, conjunctiva, lacrimal gland, lacrimal sac, or eyelids including a hordeolum or stye)
  • Active ocular inflammation or history of chronic, recurrent ocular inflammation within prior 3 months (e.g. retinitis, macular inflammation, choroiditis, uveitis, iritis, scleritis, episcleritis, keratitis)
  • Ocular surface abnormality that may compromise corneal integrity (e.g., prior chemical burn, recurrent corneal erosion, corneal epithelial defect, Grade 3 corneal fluorescein staining, or map dot fingerprint dystrophy
  • Lid surface abnormalities (e.g., entropion, ectropion, tumor, edema, blepharospasm, lagophthalmos, severe trichiasis, severe ptosis) that affect lid function in either eye
  • Anterior blepharitis (staphylococcal, demodex or seborrheic grade 3 or 4)
  • Ocular trauma, chemical burns, or limbal stem cell deficiency
  • Systemic disease conditions that cause dry eye (e.g., Stevens-Johnson syndrome, vitamin A deficiency, rheumatoid arthritis, Wegener's granulomatosis, sarcoidosis, leukemia, Riley-Day syndrome, systemic lupus erythematosus, Sjogren's syndrome)
  • Women who are pregnant, nursing, or not utilizing adequate birth control measures
  • Individuals who have either changed the dosing of systemic or ophthalmic medication within the past 30 days prior to screening or who are unable or unwilling to remain on a stable dosing regimen for the duration of the study
  • Individuals using isotretinoin (Accutane) within 1 year, cyclosporine-A (Restasis) within 2 months, or topical medications other than non-preserved artificial tears within 2 weeks.
  • Individuals using another investigational device or agent within 30 days of study participation
  • Contact lens wearers or individuals who have worn contact lenses in the last 30 days or anticipate wearing contact lenses during this study.

Treatment and study plan

iLux 2020 System

Device

Medical device that applies localized heat and pressure therapy to the eyelid in order to express melted meibum from obstructed glands

Primary outcomes

  1. Change From Baseline in Meibomian Gland Secretion (MGS) Total Score

    Time frame: Baseline (Day 0 pretreatment), Week 1, Month 1

    Meibomian glands on the lower eyelid were assessed by the examiner using a Meibomian Gland Evaluator (MGE 1000) device while viewing the eyelid margin with a slit lamp microscope. 5 glands in 3 zones (nasal, medial, temporal) were evaluated. Each gland was scored from 0-3, for a resultant overall score of 0-45 for each eye. MGS scoring was as follows: 0 = no secretion (worst), 1 = inspissated, 2 = cloudy, 3 = clear liquid (best). A positive change value indicates an improvement. Eyes were assessed individually.

  2. Change From Baseline in Tear Break-Up Time (TBUT)

    Time frame: Baseline (Day 0 pretreatment), Week 1, Month 1

    The investigator instilled a drop of fluorescein into the lower eyelid and asked the patient to blink several times, then stop. The time between the last blink and the first appearance of a dark spot on the cornea (formation of a dry area) on the otherwise continuously stained tear film was recorded in seconds. 3 consecutive measurements were taken, with TBUT defined as the average of the 3 measurements. A positive change value represents A positive change value represents a more stable tear film (improvement). Eyes were assessed individually.

Secondary outcomes

  1. Change From Baseline in Standard Patient Evaluation of Eye Dryness (SPEED) Total Score

    Time frame: Baseline (Day 0 pretreatment), Week 1, Month 1

    The Standard Patient Evaluation of Eye Dryness (SPEED) survey is a validated survey that assesses both the frequency and severity of dry eye symptoms. The patient grades the frequency of symptoms (4 items) on a scale from 0 to 3 (0=never; 3=constant) and the severity of each symptom (4 items) on a scale from 0 to 4 (0=no problems; 4=intolerable). Responses to the 8 items are summed to calculate a total score ranging from 0 to 28, where 0=best and 28=worst. A negative change value indicates a perceived improvement in ocular health. Both eyes contributed to the mean.

  2. Change From Baseline in Ocular Surface Disease Index (OSDI) Total Score

    Time frame: Baseline (Day 0 pretreatment), Month 1

    The OSDI is a validated, 12-item questionnaire used to measure ocular symptoms, visual function, and environmental factors that may affect a patient's vision. The patient grades each item on a scale from 0 to 4, where 0 is "None" and 4 is "All of the Time." Responses to the 12 items are summed, and a formula is used to calculate a total score from 0 to 100, where 0 corresponds to no disability and 100 corresponds to complete disability. A negative change value represents a perceived improvement in ocular health. Both eyes contributed to the mean.

Sponsors and collaborators

Lead sponsor

Tear Film Innovations, Inc.

Industry

Registry information

Important dates

Study start
2015
Primary completion
2016
Study completion
2016
First posted
Feb 16, 2017
Registry last updated
Nov 12, 2020

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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