Efficacy of Two Concentrations of Autologous Serum for the Treatment of Severe Dry Eye

August 31, 2018 updated by: Pontificia Universidad Catolica de Chile

Comparison of Autologous Serum 20% and Autologous Serum 50% for the Treatment of Severe Dry Eye

The purpose of this study is to compare the effects of autologous serum 20% and autologous serum 50% for the treatment of Severe Dry Eye Syndrome

Study Overview

Detailed Description

To determine the difference between autologous serum 20% vs 50%, in terms of improvement of symptoms, improvement of ocular surface parameters and acceptable tolerability in patients with severe dry eye syndrome.

Study Type

Interventional

Enrollment (Anticipated)

20

Phase

  • Phase 3

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

    • Región Metropolitana
      • Puente Alto, Región Metropolitana, Chile
        • Hospital Dr. Sotero del Rio

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 and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Man/woman ≥ 18 years old, able to freely give consent to participate in the study
  • At least 1 of the following tests altered:

    • Ocular Surface Disease Index (OSDI) Test symptoms > 32
    • BUT ≤5 seconds
    • Oxford staining ≥ 3
    • Schirmer Test without anesthesia ≤ 5 mm

Exclusion Criteria:

  • Sensitivity or known intolerance to any of the products used in the study
  • Contraindication of venipuncture
  • Story of ocular infections within the 6 previous months to study inclusion
  • Any active ocular pathology other than Dry Eye Syndrome
  • Use of contact lenses in the 3 previous months to study inclusion
  • No pregnant or breastfeeding women is allowed to participate in the study. Childbearing potential women must use contraceptive means during the whole study.
  • Participation in another clinical trial in the last 30 days before study inclusion

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: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Autologous Serum 20%
Treatment with Autologous Serum 20% for 2 months
Instillation of 1 drop of Autologous Serum 20% four times a day
Other Names:
  • Autologus serum low concentration
Active Comparator: Autologous Serum 50%
Treatment with Autologous Serum 50% for 2 months
Instillation of 1 drop of Autologous Serum 50% four times a day
Other Names:
  • Autologus serum high concentration

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Ocular Surface Disease Index (OSDI) Score
Time Frame: 1 month

The Ocular Surface Disease Index (OSDI) is a 12-item questionnaire designed to provide a rapid assessment of the symptoms of ocular irritation consistent with dry eye disease and their impact on vision-related functioning.

The overall OSDI score defines the ocular surface as normal (0-12 points) or as having mild (13-22 points), moderate (23-32 points), or severe (33-100 points) disease.

1 month

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Tear Break Up Time (TBUT)
Time Frame: 1 week, 1 month, 2 months

The TBUT is based on the time of tear rupture after the instillation of fluorescein.

The shorter the time of rupture, the greater the tear dysfunction

1 week, 1 month, 2 months
Change in Oxford Staining score
Time Frame: 1 week, 1 month, 2 months
The Oxford scale is based on the amount of ocular surface (cornea and conjunctiva) that is stained with lysine or green fluorescein. The severity of the staining points is classified into 6 stages (0-5) from absent to marked epithelial damage.
1 week, 1 month, 2 months
Change in Schirmer I
Time Frame: 1 week, 1 month, 2 months

It is a tear production test. The Schirmer I test is performed without anesthesia. Two thin strips of filter paper (Whatman 5mm x 35mm) are placed on the bottom of the lower conjunctival sac at the junction of the middle third and the outer third to prevent injury to the cornea. It is recommended to ask the subject to keep their eyes closed to limit the effect of blinking. The strips are kept positioned for 5 minutes and then they are removed and the amount that was moistened is read, in mm.

The lower the value, the greater the deficit of tear production

1 week, 1 month, 2 months
Change in Ocular Surface Disease Index (OSDI) Score
Time Frame: 1 week, 2 months

The Ocular Surface Disease Index (OSDI) is a 12-item questionnaire designed to provide a rapid assessment of the symptoms of ocular irritation consistent with dry eye disease and their impact on vision-related functioning.

The overall OSDI score defines the ocular surface as normal (0-12 points) or as having mild (13-22 points), moderate (23-32 points), or severe (33-100 points) disease.

1 week, 2 months

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Paulina Liberman, MD, Pontificia Universidad Catolica de Chile

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 (Anticipated)

September 12, 2018

Primary Completion (Anticipated)

October 19, 2018

Study Completion (Anticipated)

November 19, 2018

Study Registration Dates

First Submitted

February 12, 2018

First Submitted That Met QC Criteria

February 15, 2018

First Posted (Actual)

February 19, 2018

Study Record Updates

Last Update Posted (Actual)

September 5, 2018

Last Update Submitted That Met QC Criteria

August 31, 2018

Last Verified

August 1, 2018

More Information

Terms related to this study

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

No

Studies a U.S. FDA-regulated device product

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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