Lipid Layer Thickness Pre and Post Lid Scrubs With Cliradex (HONDA)

January 7, 2016 updated by: University of Waterloo
Tears play a vital role in vision. A thin layer of tears is always present to cover the surface of the eye for optimal comfort and vision. There are several layers to the tear film, and the outer most layer is comprised of lipids. This lipid layer prevents evaporation of the tears and may be disrupted in people suffering from symptoms of dry eye. Cleaning eyelids with Cliradex wipes have shown to be effective in reducing dry eye symptoms in some patients, and the purpose of this study is to evaluate the tear film lipid layer thickness before and after one months treatment with Cliradex Wipes.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
20

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • Ontario
      • Waterloo, Ontario, Canada, N2L 3G1
        • Centre for Contact Lens Research, University of Waterloo

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

13 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Is at least 17 years of age and has full legal capacity to volunteer;
  2. Has read and signed an information consent letter;
  3. Is willing and able to follow instructions and maintain the appointment schedule;
  4. Have not worn contact lenses in the past month;
  5. Has symptomatic dry eye with SPEED questionnaire score ≥6;
  6. Corneal staining grade ≥2 on the Oxford scale.

Exclusion Criteria:

  1. Has any known active ocular disease and/or infection;
  2. Has a systemic condition that in the opinion of the investigator may affect a study outcome variable;
  3. Is using any systemic or topical medications that in the opinion of the investigator may affect a study outcome variable;
  4. Have used rewetting drops for a period of 2 days prior to screening visit;
  5. Has known sensitivity to the diagnostic pharmaceuticals to be used in the study;
  6. Is pregnant, lactating or planning a pregnancy at the time of enrolment by verbal confirmation at the screening visit;
  7. Is aphakic;
  8. Has undergone refractive error surgery;
  9. Has taken part in another (pharmaceutical) research study within the last 30 days.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
No Intervention: Control
No treatment
Experimental: Treatment
Participants clean their eyelids with Cliradex wipes before going to bed at night.
Other: Cliradex
Cliradex is simply water and 4-Terpineol, a natural organic compound found Melaleuca alternifolia. The other ingredients in Cliradex are in less than 1% of the formulation and are Glycerin, Polysorbate 20, Polysorbate 80, Carbomer, Triethanolamine.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Lipid layer thickness
Time Frame: Baseline
Lipid layer thickness measured in nm.
Baseline
Lipid layer thickness
Time Frame: 1 month after baseline visit.
Lipid layer thickness measured in nm.
1 month after baseline visit.

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Non-invasive tear breakup time (NITBUT)
Time Frame: Baseline
Measurement of time taken for a dry spot to appear on the corneal surface after blinking.
Baseline
Non-invasive tear breakup time (NITBUT)
Time Frame: 1 month after baseline visit.
Measurement of time taken for a dry spot to appear on the corneal surface after blinking.
1 month after baseline visit.
Dry Eye Questionnaire (SPEED score)
Time Frame: Baseline
Standard Patient Evaluation of Eye Dryness questionnaire. Assessment of subjects' frequency and severity of dry eye symptoms. The total score was calculated as the sum scores for all symptoms over a range of 0 to 28. A lower total SPEED score represents less frequent and/or less severe symptoms.
Baseline
Dry Eye Questionnaire (SPEED score)
Time Frame: 15 days after baseline visit.
Standard Patient Evaluation of Eye Dryness questionnaire. Assessment of subjects' frequency and severity of dry eye symptoms. The total score was calculated as the sum scores for all symptoms over a range of 0 to 28. A lower total SPEED score represents less frequent and/or less severe symptoms.
15 days after baseline visit.
Dry Eye Questionnaire (SPEED score)
Time Frame: 1 month after baseline visit.
Standard Patient Evaluation of Eye Dryness questionnaire. Assessment of subjects' frequency and severity of dry eye symptoms. The total score was calculated as the sum scores for all symptoms over a range of 0 to 28. A lower total SPEED score represents less frequent and/or less severe symptoms.
1 month after baseline visit.
Overall corneal staining grade
Time Frame: Baseline
Overall corneal staining score evaluated on a scale from 0 (none) to 5 (severe). A lower grade indicates less corneal surface desiccation.
Baseline
Overall corneal staining grade
Time Frame: 1 month after baseline visit.
Overall corneal staining score evaluated on a scale from 0 (none) to 5 (severe). A lower grade indicates less corneal surface desiccation.
1 month after baseline visit.
Conjunctival hyperemia
Time Frame: Baseline
Conjunctival hyperemia evaluated on a scale from 0 (negligible) to 100 (severe).
Baseline
Conjunctival hyperemia
Time Frame: 1 month after baseline visit.
Conjunctival hyperemia evaluated on a scale from 0 (negligible) to 100 (severe).
1 month after baseline visit.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Waterloo

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Canadian Optometric Education Trust Fund (COETF)

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Lyndon Jones, PhD, CCLR, University of Waterloo

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 1, 2015

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 1, 2015

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 1, 2015

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 8, 2015

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 6, 2015

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 9, 2015

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
January 8, 2016

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 7, 2016

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2016

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 20714

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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