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Completed

NCT Number: NCT02014922

A Study to Determine the Relief of Dry Eye Symptoms With the Use of TheraTears® Products (DUNLIN)

Dry eye is a very common condition that most often affects women and the elderly, and can be caused when the eyes do not produce enough tears, or when the tears evaporate too quickly. Although there isn't a simple cure for dry eye, there are numerous products on the market that attempt to help relieve some of the discomfort caused by this condition. Some of these products include artificial tears, omega-3 supplements, and/or anti-inflammatory medications. The purpose of this study is to evaluate the performance of a combination of TheraTears® products, and to compare them with the product(s) you have been using.

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Key information

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

Centre for Contact Lens Research, University of Waterloo School of Optometry & Vision Science

Waterloo, Ontario, N2L3G1, Canada

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Is between 18 and 65 years of age and has full legal capacity to volunteer;
  • Has read and signed an information consent letter;
  • Is willing and able to follow instructions and maintain the appointment schedule;
  • Exhibits symptoms of dry eye for at least 3 months;
  • Has an OSDI score of ≥ 23;
  • Is currently on a non-omega 3 dry eye treatment regimen that, at the minimum consists of instilling artificial tears at least once a day for the past 3 months;
  • Has an average non-invasive tear breakup time ≤ 5.00 seconds in at least one eye.

Exclusion criteria

  • Is participating in any concurrent clinical or research study;
  • Has any known active* ocular disease and/or infection and/or allergies;
  • For the purposes of study, active ocular disease is defined as infection or inflammation which requires therapeutic treatment. Lid abnormalities (blepharitis, meibomian gland dysfunction, papillae), corneal and conjunctival staining and dry eye are typical findings and are not considered active ocular disease. Neovascularization and corneal scars are the result of previous hypoxia, infection or inflammation and are therefore not active.
  • Has a systemic condition that in the opinion of the investigator may affect a study outcome variable;
  • Is using any systemic or topical medications that in the opinion of the investigator may affect a study outcome variable;
  • Has known sensitivity to the diagnostic pharmaceuticals to be used in the study;
  • Is pregnant, lactating or planning a pregnancy at the time of enrollment, as determined verbally;
  • Is aphakic;
  • Has undergone refractive error surgery;
  • Has taken part in another (pharmaceutical) research study within the last 30 days;
  • Has worn contact lenses within the past 5 years;
  • Is currently using or have used omega 3 supplements in the past 3 months.

Treatment and study plan

TheraTears® Lubricant Eye Drop

Drug

TheraTears® preservative-free single-use containers

Drug

TheraTears® Nutrition

Dietary Supplement

TheraTears® TheraLid® Eyelid Cleanser

Other

Primary outcomes

  1. Change over time of OSDI score

    Time frame: At screening, 2 weeks, 1 month and 3 months

    Ocular Surface Disease Index (OSDI) questionnaire score

  2. Change over time of Visual analogue scores

    Time frame: At screening, 2 weeks, 1 month and 3 months

  3. Change over time of Tear osmolarity

    Time frame: At screening, 1 month and 3 months

  4. Change over time of Tear film breakup time

    Time frame: At screening, 1 month and 3 months

  5. Change over time of Corneal staining

    Time frame: At screening, 1 month and 3 months

Secondary outcomes

  1. Change over time of Lid wiper epitheliopathy

    Time frame: At screening, 1 month and 3 months

  2. Change over time of Meibomian gland expressibility

    Time frame: At screening, 1 month and 3 months

  3. Change over time of Meibum quality

    Time frame: At screening, 1 month and 3 months

  4. Change over time of Tear film lipid layer thickness

    Time frame: At screening, 1 month and 3 months

  5. Change over time of Tear meniscus height

    Time frame: At screening, 1 month and 3 months

  6. Change over time of Schirmer's I scores

    Time frame: At screening, 1 month and 3 months

Sponsors and collaborators

Lead sponsor

University of Waterloo

Other

Collaborators

  • Advanced Vision Research

Registry information

Official study title

A Study to Determine the Relief of Dry Eye Symptoms With the Use of TheraTears® Products

Acronym: DUNLIN

Important dates

Study start
2013
Primary completion
2014
Study completion
2014
First posted
Dec 18, 2013
Registry last updated
Mar 11, 2015

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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