Tear Lipid Layer Thickness With Emollient Eye Drops

January 14, 2021 updated by: Jennifer Fogt, Ohio State University
Crossover comparison of lipid layer thickness with two artificial tear formulations

Study Overview

Status

Completed

Conditions

Detailed Description

This study will objectively evaluate two US Monograph lubricant eyedrop formulations (Allergan, plc). Refresh Optive ADVANCED will be compared to an investigational formula with additional compendial ingredients (Refresh Optive MEGA 3) in subjects with dry eye symptoms and lipid layer thickness < 75 nm at baseline in a randomized, cross-over (masked subject) design. We seek to objectively evaluate the increase in lipid layer thickness from baseline at 15 minutes and 1 hour after each eye drop has been instilled. The Stroboscopic Video Color Microscope of King-Smith is used for non-invasive lipid layer thickness measurement.

Study Type

Interventional

Enrollment (Actual)

21

Phase

  • Phase 4

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

    • Ohio
      • Columbus, Ohio, United States, 43210
        • The Ohio State University

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

Ages Eligible for Study

28 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Age - at least 30 years

    • Good general health (defined by medication use that has not changed within the last month and the absence of medical conditions or treatments that are deemed confounding to the data as determined by the PI)
    • Ability to give informed consent
    • Willing to spend time for the study; approximately one hour for a screening visit and additional 4 hours for the study assessments. Study assessment will be conducted over 2 visit days, approximately 1 1/2 hours per day.
    • Either gender
    • Any racial or ethnic origin
    • Stroboscopic Video Color Microscope tear lipid thickness ≤ 75 nm

Exclusion Criteria:

  • Use of any ocular prescription medication (such as but not limited to, glaucoma medications, anti-inflammatory eye drops and Restasis) used within 14 days of the screening visit or started prior to the measurement visit(s).

    • Currently having punctal plugs inserted in lacrimal puncta
    • Current eye disease, infection or inflammation that affects the surface of the eye such as, but not limited to moderate or greater blepharitis and ocular allergy. Clinically significant (active treatment) of blepharitis, Sjogren's disease or other systemic disease that could influence Meibomian Gland Dysfunction, corneal, conjunctival, or eyelid abnormalities that could influence lipid layer thickness, conjunctivitis of any cause, ocular infection or systemic medication such as diuretics or drugs that could influence tear secretion, or sensitivity to any of the ingredient in the eye drop being tested,
    • Past eye surgery, such as, but not limited to, refractive surgery. Subjects who have had cataract removal surgery more than one year ago, but less than 10 years ago may be considered as potential subjects.
    • Female subjects may not be pregnant or lactating. (Subject will be asked to self report these conditions.)
    • Infectious diseases (for example, hepatitis, tuberculosis) or an immuno-suppressive disease (for example, HIV). (Subjects will be asked to self-report these conditions.)
    • Inability to complete the screening and examination
    • Inability to provide analyzable data. For example, subjects who cannot keep their eye open during the entire measurement interval (due to early blinking) or provide a readable eye image (due to eyelid laxity) or cannot sit still for 1 minute.

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Refresh Optive, then Refresh Optive MEGA-3

Participants first utilized one drop of Refresh Optive in each eye before taking lipid layer thickness measurements occurring at 15 minutes and 1 hour after instillation. After a washout period, they returned to repeat the testing using one drop of Refresh Optive MEGA-3 before taking lipid layer thickness measurements.

.

Lubricate and hydrating relief of eye dryness investigational lubricant eye drop is based on carboxymethylcellulose
Lubricate and hydrating relief of eye dryness investigational lubricant eye drop is based on carboxymethylcellulose and with flaxseed oil and trehalose
Experimental: Refresh Optive MEGA-3, then Refresh Optive
Participants first utilized one drop of Refresh Optive MEGA-3 in each eye before taking lipid layer thickness measurements occurring at 15 minutes and 1 hour after instillation. After a washout period, they returned to repeat the testing using one drop of Refresh Optive before taking lipid layer thickness measurements.
Lubricate and hydrating relief of eye dryness investigational lubricant eye drop is based on carboxymethylcellulose
Lubricate and hydrating relief of eye dryness investigational lubricant eye drop is based on carboxymethylcellulose and with flaxseed oil and trehalose

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Tear Lipid Layer Thickness
Time Frame: 15 minutes
Change in tear lipid layer thickness
15 minutes

Collaborators and Investigators

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

Collaborators

Investigators

  • Principal Investigator: Jennifer Fogt, OD MS, Ohio State University

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 (Actual)

March 1, 2017

Primary Completion (Actual)

June 30, 2018

Study Completion (Actual)

June 30, 2018

Study Registration Dates

First Submitted

April 5, 2017

First Submitted That Met QC Criteria

December 20, 2017

First Posted (Actual)

December 21, 2017

Study Record Updates

Last Update Posted (Actual)

February 3, 2021

Last Update Submitted That Met QC Criteria

January 14, 2021

Last Verified

January 1, 2021

More Information

Terms related to this study

Other Study ID Numbers

  • 2016H0354

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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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