Sub-macular Injection of Ranibizumab as a New Surgical Treatment for Refractory Diabetic Macular Edema

June 3, 2019 updated by: Mahmoud Abouhussein, University of Alexandria
The best treatment strategy for refractory DME is not known, options include switching between anti-VEGF agents, corticosteroids, and vitrectomy. In this study, authors describe a new surgical technique for the treatment of refractory non tractional DME. The technique consists of vitrectomy with ILM peeling with subretinal injection of Ranibizumab.

Study Overview

Status

Completed

Detailed Description

Purpose: In this study, authors describe a new surgical technique for the treatment of refractory DME. The technique consists of vitrectomy with ILM peeling with subretinal injection of Ranibizumab.

Methods: This is a prospective interventional non-comparative study including patients with refractory DME. Included patients were subjected to the new surgical technique of pars plana vitrectomy with sub-retinal injection of Ranibizumab.

Study Type

Interventional

Enrollment (Actual)

19

Phase

  • Not Applicable

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:

  • refractory diffuse non tractional DME.
  • Central retinal thickness (CRT) should exceed 350 µm despite undergoing multiple anti-VEGF therapy.
  • Decimal best corrected visual acuity (BCVA) must be ≥0.01 and ≤0.5.

Exclusion Criteria:

  • Previous vitrectomy, recent cataract surgery less than 6 months,
  • evident RPE atrophy, proliferative diabetic retinopathy, massive foveal hard exudation, foveal traction on OCT,
  • glaucoma and one eyed patients.

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Persistent Diabetic macular edema
Authors defined refractory DME as eyes with persistent DME despite receiving at least 6 monthly Ranibizumab injections of anti VEGF, and then switched to Aflibercept, receiving at least three monthly injections.
In this study, authors describe a new surgical technique for the treatment of refractory non tractional DME. The technique consists of vitrectomy with ILM peeling with subretinal injection of Ranibizumab.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The primary endpoint for this study was the change in CMT at the final visit.
Time Frame: at the 6 month follow up visit
Central macular thickness
at the 6 month follow up visit

Collaborators and Investigators

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

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.

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, 2017

Primary Completion (Actual)

December 31, 2017

Study Completion (Actual)

December 31, 2018

Study Registration Dates

First Submitted

June 2, 2019

First Submitted That Met QC Criteria

June 3, 2019

First Posted (Actual)

June 5, 2019

Study Record Updates

Last Update Posted (Actual)

June 5, 2019

Last Update Submitted That Met QC Criteria

June 3, 2019

Last Verified

June 1, 2019

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

proecting patient privacy

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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