Safety and Efficacy of Lotemax Versus FML in Subjects Undergoing PRK for the Correction of Mild to Moderate Myopia, 3- Month Follow-up Study

November 22, 2016 updated by: Dr Salouti Eye Research Center

Randomized, Single Blinded Controlled Trial for Evaluation of the Safety and Efficacy of Loteprednol Versus Fluorometholone After Photorefractive Keratectomy for the Correction of Mild to Moderate Myopia, 3- Month Follow-up Study

STUDY OBJECTIVE: To evaluate and compare the safety and efficacy of (corneal Wound Healing and Intraocular Pressure) Fluorometholone and Loteprednol after photorefractive keratectomy (PRK) surgery.

OVERALL STUDY DESIGN: Structure: Single-center, randomized, single blinded, contralateral (one eye receives FML, one eye Lotemax) Treatment Group: Patients will be randomized to the eye and will receive FML in one eye, Lotemax in contralateral eye Duration: 3 months Dosage/Dose Regimen: All patients will receive each one of the steroid agents 4 x a day for one month, 3 x a day for one month and 2 x a day for one month Study medication will be administered to the randomized eye through post op days according to mention protocol. Visit Schedule: baseline-screening, postop days 1, 7, 30 and then month 3th (through corneal re-epithelialization).

Study Overview

Study Type

Interventional

Enrollment (Anticipated)

200

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 Contact

Study Contact Backup

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

16 years to 43 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Male or female patients, 18-45 yrs of age, in good general health
  • PRK candidate(Subjects willing and able to undergo bilateral PRK for the correction of their myopia. )
  • Refractive error -1 to -8 diopters (spherical equivalent) at baseline
  • Females of childbearing age must have a negative pregnancy test result at baseline. A female considered to be of non-childbearing potential is she is postmenopausal (no menses for 12 consecutive months) or is without a uterus.
  • Ability to follow study instructions and likely to complete the entire course of the study(Subjects who are able to comply with all study procedures, including wearing a soft bandage contact lens in the immediate postoperative period. )
  • Written informed consent will be obtained
  • Written HIPPA authorization will be obtained
  • Subjects with MRSE <6.0 D, with less than 2.0 D of astigmatism.
  • Stable prescription in both eyes as defined by <0.25 D change over the preceding 2 years.

Exclusion Criteria:

  • Uncontrolled systemic disease you mean if someone has controlled DM or rheumatic disease can be included
  • Any active ocular disease, corneal abnormalities, lid abnormalities, or any ocular pathologies
  • History of serious eye disease, trauma, or previous ocular surgery
  • History of unstable myopia
  • History of herpes keratitis
  • Known allergy or hypersensitivity to the study medication
  • Anticipated wearing of contact lenses in addition to the required bandage contact lens post-PRK. Patients who wear soft contact lenses should discontinue wearing them at least 7 days prior to baseline visit. Patients wearing RGP or hard contact lenses should discontinue wearing them at least 3 weeks prior to baseline visit.
  • Females who are pregnant, breastfeeding, or trying to conceive.
  • Keratoconus or keratoconus suspect
  • Any condition or situation which, in the investigator's opinion, may put patient at significant risk or may confound the study results
  • Subjects who have a past or present disease, which as judged by the investigator may affect the safety of the subject or the outcome of the study.
  • Subjects who have previously had corneal surgery.
  • Subjects with any ocular disease or corneal abnormality, including but not limited to:

    • Decreased corneal sensation / neurotrophic cornea;
    • Corneal vascularization;
    • Keratoconus;
    • Keratoconjunctivitis sicca requiring chronic treatment;
    • Lagophthalmos;
    • Blepharitis;
    • History of infectious keratitis;
    • History of glaucoma or intraocular pressure of >21 mmHg or use of glaucoma medications;
    • Significant dry eye disease that requires regular topical treatment;
    • Corneal thickness <480 µm at the thinnest point, and
    • Posterior elevation >40 micron.
    • Subjects who require any topical ophthalmic medication other than the pre- and postoperative regimen defined in the study protocol.
    • Subjects who are taking amiodarone, long acting anticholinergics, e.g., atropine, scopolamine, or medications or agents that can cause dry eye.

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: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Fluorometholone(FMl)
Patients will be randomized to the eye and will receive FML in one eye.
Active Comparator: Loteprednol (Lotemax)
Patients will be randomized to the eye and will receive Lotemax in contralateral eye.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Time to re-epithelialization
Time Frame: 3-7 days
Amount of days it takes for the cornea to re-epithelialize after PRK surgery, will be documented for each eye separately.
3-7 days

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Time to zero pain
Time Frame: 3-7 days
Study subject will complete a questionnaire about their comfort levels at each postoperative visit, up to an including the 3-7 days post op exam.
3-7 days
Occurrence of enhancements
Time Frame: 3 months post operative
Will document the number of requested/recommended enhancement procedures at the 3 month postoperative visit.
3 months post operative
Incidence of adverse events
Time Frame: Day 1 up to day 90
Day 1 up to day 90

Collaborators and Investigators

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

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

April 1, 2017

Primary Completion (Anticipated)

August 1, 2017

Study Completion (Anticipated)

November 1, 2017

Study Registration Dates

First Submitted

November 16, 2016

First Submitted That Met QC Criteria

November 22, 2016

First Posted (Estimate)

November 28, 2016

Study Record Updates

Last Update Posted (Estimate)

November 28, 2016

Last Update Submitted That Met QC Criteria

November 22, 2016

Last Verified

November 1, 2016

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

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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