Efficacy of an Intravitreal DEX Implant in Retinal Vein Occlusion Following Treatment With Anti-VEGF Injections.

April 26, 2017 updated by: Retina Macula Institute

Efficacy of an Intravitreal Dexamethasone Implant on Macular Function in Retinal Vein Occlusion Following Treatment With Intravitreal Anti-VEGF Injections.

To test the efficacy of a 0.7 mg intravitreal dexamethasone implant (Ozurdex®) on macular function and recalcitrant macular edema associated with retinal vein occlusion following treatment with 2 or more prior intravitreal anti-VEGF drug injections.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The efficacy of the DEX implant on macular edema for RVO is well established in multiple clinical trials. However, the duration and frequency of re-treatment have not been extensively explored. In addition, no prior studies have tested the efficacy of the DEX implant on retinal and macular function using diagnostic testing measurements such as multi-focal ERG, microperimetry and RAM testing. Since VA and OCT outcomes do not always correlate, these other assessments (mf-ERG, microperimetry, RAM testing) may be useful as early predictors of when or if patients should be retreated. This study will assess 2 groups (0.7mg PRN and 0.7mg Q16 weeks) and assess high resolution OCT, RAM testing, microperimetry, and Multi-focal ERG outcomes. For the PRN group retreated based on any fluid on OCT, we will investigate if microperimetry or multifocal ERG changes would have been an earlier predictor of fluid returning.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
10

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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

  • United States
    • California
      • Torrance, California, United States, 90503
        • Retina Macula Institute

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Presence of central retinal vein occlusion (CRVO) or branch retinal vein occlusion (BRVO)
  • Prior treatment with >= 2 intravitreal anti-VEGF injections but no treatment in last 45 days.
  • Age 18 years or older
  • ETDRS Visual acuity between 3 and 72 letters and approximate Snellen equivalent of 20/25 to 20/800
  • Central foveal thickness >275 microns or presence of cystic edema on OCT studies.
  • For sexually active women of childbearing potential, agreement to the use of an appropriate form of contraception (or abstinence) for the duration of the study.
  • Ability to provide written informed consent • Capable of complying with study protocol

Exclusion Criteria:

  • History of steroid-related glaucoma (steroid response) requiring more than one topical glaucoma medication.
  • Intraocular injection of steroid medication within prior 4 months
  • Evidence of significant retinal ischemia on fluorescein angiography in the opinion of the treating physician.
  • Previous laser photocoagulation within 4 months of study
  • Concurrent ocular disease (e.g proliferative diabetic retinopathy, geographic atrophy) that would limit visual acuity in the opinion of the treating physician
  • Patients who are pregnant.
  • Unwilling or unable to follow or comply with all study related procedures.

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: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Ozurdex PRN
0.7 mg intravitreal DEX implant at Visit 1 then PRN for duration of trial (48 weeks) if evidence of fluid on OCT
Drug: Ozurdex
0.7 mg intravitreal DEX implant on first visit, then PRN if evidence of macular edema on OCT studies
Other Names:
  • Dexamethasone implant, DEX implant
Drug: Ozurdex
0.7 mg intravitreal DEX implant on first visit then every 16 weeks
Other Names:
  • dexamethasone implant, DEX implant
Active Comparator: Ozurdex Q16 weeks
0.7 mg intravitreal DEX implant at Visit 1 then Q16 weeks
Drug: Ozurdex
0.7 mg intravitreal DEX implant on first visit, then PRN if evidence of macular edema on OCT studies
Other Names:
  • Dexamethasone implant, DEX implant
Drug: Ozurdex
0.7 mg intravitreal DEX implant on first visit then every 16 weeks
Other Names:
  • dexamethasone implant, DEX implant

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Macular Function Using Microperimetry
Time Frame: baseline to 48 weeks
To determine if there is change in mean macular sensitivity using microperimetry at 48 weeks compared to baseline for both the PRN and Q16weeks treatment groups
baseline to 48 weeks
Macular Function Using Multi-focal ERG
Time Frame: baseline to 48 weeks
To determine if there is a change in central amplitude responses using multifocal ERG at 48 weeks compared to baseline values for both the PRN and Q16weeks treatment groups
baseline to 48 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
To Determine if There is a Change in Visual Acuity (Number of ETDRS Letters) at 48 Weeks Compared to Baseline Values for Both the PRN and Q16weeks Treatment Groups
Time Frame: baseline to 48 weeks
baseline to 48 weeks
To Determine if There is a Change in Central Foveal Thickness (Microns on High Resolution OCT) at 48 Weeks Compared to Baseline Values for Both the PRN and Q16weeks Treatment Groups
Time Frame: baseline to 48 weeks
baseline to 48 weeks

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Retina Macula Institute

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Allergan

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Ron P Gallemore, M.D. Ph.D, Retina Macula Institute
  • Study Director: Behnam Sharareh, B.S, Retina Macula Institute

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

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 1, 2011

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 1, 2012

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 1, 2013

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 6, 2011

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 6, 2011

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 10, 2011

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 31, 2017

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 26, 2017

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • IIT-287

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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