Lipids of the Human Tear Film and Their Effect on Tear Stability

November 28, 2017 updated by: Douglas Bourchman, University of Louisville
This prospective, randomized, comparative clinical trial evaluates the effect of either oral doxycycline, oral essential fatty acid, or topical azithromycin to modify the secretions of the meibomian gland in subjects with meibomian gland dysfunction and/or dry eye disease.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Subjects with meibomian gland dysfunction undergo expression of the meibomian gland secretion prior to beginning treatment with either oral doxycycline or topical azithromycin solution. Doxycycline is dosed at 100 mg bid; topical azithromycin is delivered once per day as a 1% solution. Treatment with doxycycline is for two months; treatment with topical azithromycin is for one month. Following treatment, meibomian glands are again expressed and the lipids measured by spectroscopy (FTIR, MALDI-TOF, NMR)for characterization of structure and function. Analysis for presence of doxcycline or azithromycin is also performed. Changes in lipid parameters are correlated with clinical signs and symptoms of disease.

Study Type

Interventional

Enrollment (Actual)

31

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

  • United States
    • Kentucky
      • Louisville, Kentucky, United States, 40202
        • Kentucky Lions Eye Center

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

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Meibomian gland dysfunction

Exclusion Criteria:

  • Lid margin scarring; herpetic blepharitis

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: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Doxycycline
Oral doxycycline
Drug: doxycycline
Oral doxycycline 100mg bid
Other Names:
  • Minocycline
Active Comparator: azithromycin
Topical azithromycin daily to the conjunctival culdesac
Drug: azithromycin
topical 1% azithromycin daily to eye
Other Names:
  • Azasite

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Global Response to Therapy
Time Frame: 4 weeks
Global Response to Therapy (itch, dryness, burning and swelling of eyes) as assessed with a questionnaire completed by the subjects. The questionnaire asked subjects to rate their improvement on a scale from 4 to 0 with 4 being resolution of symptoms and 0 being no improvement. Data reported here represent the number of eye of subjects that reported that their symptoms were resolved or improved in each eye.
4 weeks

Collaborators and Investigators

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

Sponsor

University of Louisville

Investigators

  • Principal Investigator: Gary N Foulks, MD, University of Louisville

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

July 1, 2008

Primary Completion (Actual)

December 1, 2010

Study Completion (Actual)

December 1, 2010

Study Registration Dates

First Submitted

December 1, 2008

First Submitted That Met QC Criteria

December 3, 2008

First Posted (Estimate)

December 5, 2008

Study Record Updates

Last Update Posted (Actual)

December 22, 2017

Last Update Submitted That Met QC Criteria

November 28, 2017

Last Verified

November 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • lipidtearfilm
  • NEI RO-1- EY017094-02

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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