Effect of Intravitreal Long Acting Dexamethasone Implant, Ozurdex in Patients With Diabetic Macular Edema

September 29, 2012 updated by: Pooja Bansal,MD, Postgraduate Institute of Medical Education and Research
This study is undertaken to determine the effect of intravitreal long acting dexamethasone implant,(Ozurdex®)in patients with diabetic macular edema.Diabetic macular edema is important cause of visual impairment in patients with diabetes mellitus. Focal/ grid laser photocoagulation is the standard of care in its management. Several adjuncts including intravitreal corticosteroids, Pegabtanib Sodium ,Ranibizumab, Bevacizumab, non-steroidal anti-inflammatory agents, corticosteroids, laser photocoagulation have been tried. Intravitreal Triamcinolone Acetonide (TA), a water insoluble steroid, has been shown to reduce the retinal thickness and improve the visual acuity. However, recurrence of macular edema in patients who receive intravitreal TA is a major concern as the patients need multiple repeat injections because of its short half life. A more potent steroid, dexamethasone has also been tried as an alternative to TA for macular edema; however, its short half life of only 3 hours prevents its clinical application. In search for the ideal corticosteroid preparation, a Dexamethasone Posterior Segment Drug Delivery System (Dexamethasone DDS - Ozurdex®, Allergan Inc, Irvine, California) was recently developed. Promising results have been shown in certain patients with retinal vein occlusions, uveitis receiving this intravitreal drug delivery system with improvement in visual acuity. The present study introduces a novel concept of using Ozurdex ® implant in patients with diabetic macular edema.

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

This study is undertaken to determine the effect of intravitreal long acting dexamethasone implant,(Ozurdex®)in patients with diabetic macular edema.Diabetic macular edema is important cause of visual impairment in patients with diabetes mellitus. Focal/ grid laser photocoagulation is the standard of care in its management. Several adjuncts including intravitreal corticosteroids, Pegabtanib Sodium ,Ranibizumab, Bevacizumab, non-steroidal anti-inflammatory agents, corticosteroids, laser photocoagulation have been tried. Intravitreal Triamcinolone Acetonide (TA), a water insoluble steroid, has been shown to reduce the retinal thickness and improve the visual acuity. However, recurrence of macular edema in patients who receive intravitreal TA is a major concern as the patients need multiple repeat injections because of its short half life. A more potent steroid, dexamethasone has also been tried as an alternative to TA for macular edema; however, its short half life of only 3 hours prevents its clinical application. In search for the ideal corticosteroid preparation, a Dexamethasone Posterior Segment Drug Delivery System (Dexamethasone DDS - Ozurdex®, Allergan Inc, Irvine, California) was recently developed. Promising results have been shown in certain patients with retinal vein occlusions, uveitis receiving this intravitreal drug delivery system with improvement in visual acuity. The present study introduces a novel concept of using Ozurdex ® implant in patients with diabetic macular edema.

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.
61

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.
  • Not Applicable

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

  • India
      • Chandigarh, India, 160012
        • Pooja Bansal

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

20 years to 72 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • The patients of Type 1 or Type 2 Diabetes Mellitus fulfilling the following inclusion criteria shall be enrolled in the study:

    1. Patients of Non Proliferative Diabetic retinopathy (NPDR)with clinicaly significant macular edema(CSME)
    2. Patients with Proliferative Diabetic Retinopathy (PDR) with CSME where proliferative component has been adequately treated with laser photocoagulation
    3. Diabetic patients withcystoid macular edema
    4. Minimum central thickness on OCT not less than 300 microns

Exclusion Criteria:

  1. Patients with history of ocular hypertension or glaucoma
  2. Patients with media haze or pupillary non-dilation that does not allow good fundus photography, FFA and OCT.
  3. Patients with macular ischemia on FFA

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

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.
Experimental: Ozurdex in diabetic macular edema
Intravitreal ozurdex given in patients with diabetic macular edema and patients followed up for change in central macular thickness and visual acuity over period of 6 months
Drug: long acting intravitreal dexamethasone implant
Intravitreal ozurdex was given in diabetic patients with clinically significant macular edema and they were followed up for change in central macular thickness and visual acuity over a period of 6 months
Other Names:
  • Ozurdex

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
change in central macular thickness
Time Frame: Baseline and 6 months
The primary outcome is the change in the central macular thickness, either an increase or decrease, as measured by optical coherence tomography as compared to baseline central macular thickness
Baseline and 6 months

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
Measure Description
Time Frame
Change in the visual acuity
Time Frame: Baseline and 6 months
Change in the visual acuity as measured by the logMAR visual acuity chart
Baseline and 6 months

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.
Postgraduate Institute of Medical Education and Research

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.
December 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.
January 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, 2012

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).
March 22, 2012

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.
September 29, 2012

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 3, 2012

Study Record Updates

Last Update Posted (Estimate)

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.
October 3, 2012

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.
September 29, 2012

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.
September 1, 2012

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.
  • PoojaBansal 13

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