Short-term Additive Effect of Topical Ketorolac on the Management of Diabetic Macular Edema With Intravitreal Bevacizumab

February 20, 2021 updated by: Zahra Rabbani Khah, Shahid Beheshti University of Medical Sciences

Purpose: To evaluate the short-term effect of adding topical ketorolac to the management of diabetic macular edema (DME) with intravitreal bevacizumab (IVB).

Setting: Ophthalmology department of Imam Hossein and Torfe Medical Centers. Ophthalmic Epidemiology Research Center of Shahid Beheshti University of Medical Sciences Methods: In a randomized double-masked placebo-controlled crossover clinical trial, all eyes with DME with best-corrected visual acuity (BCVA) between 20/40 and 20/400 were included. They should have had at least one intravitreal anti-VEGF injection in the past 2 months. They were randomized into two groups. Both groups received two IVB injections with 6-week interval. One group received topical ketorolac every 6 hour in the first interval and then artificial tear every 6 hour as a placebo in the second interval. The other group received the opposite medications. Best-corrected visual acuity (BCVA) and central macular thickness (CMT) evaluations were repeated at the termination of each treatment period i.e. at 6 and 12 weeks. The main outcome measure was BCVA changes in logMAR and the second outcome was CMT changes. The interim analysis of this study is presented in this report.

Study Overview

Study Type

Interventional

Enrollment (Actual)

26

Phase

  • Phase 2
  • 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

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

30 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • BCVA≤20/40 and BCVA 20/400 and better
  • History of at least 1 intra-viteral bevacizumab (IVB) in the last 2 months
  • Requires 2 IVB in the next 12 weeks
  • Macular thickness >300 μm
  • NO Other eye diseases
  • Media clarity , pupillary dilation, and subject cooperation sufficient for adequate fundus photographs

Exclusion Criteria:

  • hgb A1c> 8
  • high risk PDR
  • Macular edema due to a cause other than diabetic retinopathy
  • Any other ocular condition that visual acuity would not improve from resolution of edema (eg.foveal atrophy)
  • Prior treatment with intravitreal or peribulbar corticosteroid injection during last 3months
  • History of macular photocoagulation during the last 6 months
  • intraocular surgery(except cataract surgery)
  • Cataract extractionin less than 6 months ago
  • Uveitis ,NVG ,exudative AMD, HR PDR.
  • Uncontrolled glaucoma
  • Vitreomacular traction or epiretinal membrane

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
Active Comparator: usage of topical ketorolac in group1
usage of topical ketorolac every 6 hour in the first interval and then artificial tear every 6 hour as a placebo in the second interval.
topical ketorolac every 6 hour in the first interval and then artificial tear every 6 hour as a placebo in the second interval.
Active Comparator: usage of artificial tear in group 2
usage of artificial tear every 6 hour in the first interval and then topical ketorolac every 6 hour as a placebo in the second interval.
artificial tear every 6 hour in the first interval and then topical ketorolac every 6 hour as a placebo in the second interval.
Active Comparator: usage of artificial tear in group 1
usage of topical ketorolac every 6 hour in the first interval and then artificial tear every 6 hour as a placebo in the second interval
topical ketorolac every 6 hour in the first interval and then artificial tear every 6 hour as a placebo in the second interval.
Active Comparator: usage of topical ketorolac in group2
usage of artificial tear every 6 hour in the first interval and then topical ketorolac every 6 hour as a placebo in the second interval
artificial tear every 6 hour in the first interval and then topical ketorolac every 6 hour as a placebo in the second interval.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
visual acuity
Time Frame: 6 weeks
Snellen E-chart
6 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Centeral macular thickness
Time Frame: 6 weeks
Ophtical Cohearence Tomography
6 weeks

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 (Actual)

January 1, 2018

Primary Completion (Actual)

June 1, 2018

Study Completion (Actual)

June 20, 2020

Study Registration Dates

First Submitted

October 2, 2019

First Submitted That Met QC Criteria

October 7, 2019

First Posted (Actual)

October 9, 2019

Study Record Updates

Last Update Posted (Actual)

February 23, 2021

Last Update Submitted That Met QC Criteria

February 20, 2021

Last Verified

October 1, 2019

More Information

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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