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Diabetic Macular EdemaPhase 2NCT01571232

Ozurdex for Treatment of Recalcitrant Diabetic Macular Edema

A Phase 2 study testing dexamethasone intravitreal implant and intravitreal bevacizumab in people with Diabetic Macular Edema and Non-proliferative Diabetic Retinopathy, run by Retina Macula Institute at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to test the efficacy of an 0.7 mg intravitreal dexamethasone implant (Ozurdex®) on macular leakage and visual acuity for patients with recalcitrant diabetic macular edema. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
dexamethasone intravitreal implant and intravitreal bevacizumab
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteUnited States
Study dates
Apr 2012to Mar 2015
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Presence of NPDR or PDR as confirmed by fluorescein angiography
  • Prior treatment with >= 2 intravitreal anti-VEGF injections but no treatment in last 4 weeks
  • < 0.1 LogOCT decrease in macular edema on high resolution OCT between initial visit and following treatment with >= 2 intravitreal anti-VEGF injections
  • Age 18 years or older
  • ETDRS Visual acuity between 3 and 78 letters (approximate Snellen equivalent of 20/25 to 20/800)
  • Ability to provide written informed consent
  • Capable of complying with study protocol.

Who cannot join

  • Intraocular injection of steroid medication within prior 3 months
  • Evidence of significant geographic atrophy on fluorescein angiography in the opinion of the treating physician
  • Concurrent ocular disease (wet AMD, significant ERM, etc) that would limit visual acuity in the opinion of the treating physician
  • Prior vitrectomy surgery
  • Use of systemic steroids (eg, oral, intravenous, intramuscular, epidural, rectal, or extensive dermal) within 1 month prior to day 1.
  • Known history of IOP elevation in response to steroid treatment in either eye that resulted in any of the following: a) = 10 mm Hg increase in IOP in response to steroid injection, or b) IOP = 25 mm Hg and required 2 or more anti-glaucoma medications to keep IOP below 21 mm Hg.
  • Patients who are pregnant.
  • Unwilling or unable to follow or comply with all study related procedures

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Retina Macula Institute

    Torrance, California, 90503

Other trials in United States

About this study

Official title: Ozurdex for Treatment of Recalcitrant Diabetic Macular Edema.

The purpose of this study is to test the efficacy of an 0.7 mg intravitreal dexamethasone implant (Ozurdex®) on macular leakage and visual acuity for patients with recalcitrant diabetic macular edema.

Read the detailed description

This is an open-label, Phase II comparative study of an intravitreal dexamethasone implant versus intravitreal bevacizumab (Avastin) in 20 patients with recalcitrant diabetic macular edema and prior treatment with ≥ 2 intravitreal anti-VEGF injections.

Being tested
dexamethasone intravitreal implant, intravitreal bevacizumab
Keywords
Macular Edema, DME, PDR, NPDR, Ozurdex, Dexamethasone, Avastin, Bevacizumab
Medical subject headings
Macular Edema

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • dexamethasone intravitreal implantDrug

    Also called Ozurdex

    Ozurdex, 0.7 mg intravitreal dexamethasone implant, given at initial visit and at month 4 (visit 5)

  • intravitreal bevacizumabDrug

    Also called Avastin

    Avastin, 1.25 mg intravitreal bevacizumab, given at initial visit and Q1month for a total of 5 treatments.

Study groups in NCT01571232
Study groupRoleWhat they receive
OzurdexActive comparatorPatients in this group receive Ozurdex at initial visit and at month 4
Receives: Drug: dexamethasone intravitreal implant
AvastinActive comparatorPatients in this group receive Avastin Q1 month for 5 months.
Receives: Drug: intravitreal bevacizumab

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The Change in Visual Acuity (Number of ETDRS Letters).

    The measure the change in ETDRS letters for each treatment group from baseline to 6 months.

    Measured: 6 months

  2. The Change in Central Foveal Thickness (Microns on High Resolution OCT).

    The measure the change in central foveal thickness for each treatment group from baseline to 6 months.

    Measured: 6 months

Secondary outcomes (3)
  1. The Change in Macular Leakage on Fluorescein Angiography From Baseline

    To qualitatively assess the change in macular leakage on fluorescein angiography from baseline to 6 months for each treatment arm.

    Measured: 6 months

  2. The Change in Mean Macular Sensitivity on Microperimetry From Baseline

    To assess the change in macular sensitivity on microperimetry from baseline to 6 months for each treatment arm.

    Measured: 6 months

  3. The Change in Mean Central Amplitude on Multi-focal ERG From Baseline.

    To assess the change in mean central amplitude on multi-focal ERG from baseline to 6 months for each treatment arm.

    Measured: 6 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Apr 2012 (estimated)
  2. Study startApr 2012
  3. Primary completionFeb 2014
  4. Study completionMar 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01571232
Sponsor's protocol ID
IIT-406
Status last verified
Mar 2021
First submitted
2 Apr 2012
Last updated
30 Mar 2021
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing dexamethasone intravitreal implant and intravitreal bevacizumab in people with Diabetic Macular Edema and Non-proliferative Diabetic Retinopathy, run by Retina Macula Institute at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 30 Mar 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 31 May 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The Change in Visual Acuity (Number of ETDRS Letters). (time frame: 6 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Mar 2021.

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