We're building a better ClinicalTrials.gov. Check it out and tell us what you think!
Working…
ClinicalTrials.gov
ClinicalTrials.gov Menu

A Study of the Safety and Efficacy of a New Treatment for Diabetic Macular Edema

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT00168389
Recruitment Status : Completed
First Posted : September 15, 2005
Results First Posted : August 4, 2014
Last Update Posted : August 4, 2014
Sponsor:
Information provided by (Responsible Party):
Allergan

Study Description
Go to 
Top of Page Study Description Study Design Arms and Interventions Outcome Measures Eligibility Criteria Contacts and Locations More Information
Brief Summary:
This study will evaluate the safety and efficacy of an intravitreal implant of dexamethasone for the treatment of diabetic macular edema.

Condition or disease Intervention/treatment Phase
Diabetic Macular Edema Drug: Dexamethasone Other: Sham Phase 3

Study Design
Go to 
Top of Page Study Description Study Design Arms and Interventions Outcome Measures Eligibility Criteria Contacts and Locations More Information

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 494 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Study Start Date : February 2005
Actual Primary Completion Date : June 2012
Actual Study Completion Date : June 2012

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Edema

Arms and Interventions
Go to 
Top of Page Study Description Study Design Arms and Interventions Outcome Measures Eligibility Criteria Contacts and Locations More Information

Arm Intervention/treatment
Experimental: Dexamethasone 700 μg
700 µg Dexamethasone posterior segment drug delivery system - injection into the vitreous cavity not less than every 6 months for up to 36 months.
 Drug: Dexamethasone
350 µg or 700 µg dexamethasone posterior segment drug delivery system - injection into the vitreous cavity not less than every 6 months for up to 36 months.
Other Names:
  • Posurdex®
  • Ozurdex®
Experimental: Dexamethasone 350 μg
350 µg Dexamethasone posterior segment drug delivery system - injection into the vitreous cavity not less than every 6 months for up to 36 months.
 Drug: Dexamethasone
350 µg or 700 µg dexamethasone posterior segment drug delivery system - injection into the vitreous cavity not less than every 6 months for up to 36 months.
Other Names:
  • Posurdex®
  • Ozurdex®
Sham Comparator: Sham
Sham posterior segment drug delivery system - needle-less drug delivery system without study medication not less than every 6 months for up to 36 months.
 Other: Sham
Sham posterior segment drug delivery system - needle-less drug delivery system without study medication not less than every 6 months for up to 36 months.


Outcome Measures
Go to 
Top of Page Study Description Study Design Arms and Interventions Outcome Measures Eligibility Criteria Contacts and Locations More Information

Primary Outcome Measures :
  1. Percentage of Patients With a Best Corrected Visual Acuity (BCVA) Improvement of ≥15 Letters From Baseline in the Study Eye [ Time Frame: Baseline, Month 39/Final Visit ]
    BCVA is measured using an eye chart and is reported as the number of letters read correctly (ranging from 0 to 100 letters) in the study eye. The lower the number of letters read correctly on the eye chart, the worse the vision (or visual acuity). An increase in the number of letters read correctly indicates improvement and a decrease in the number of letters read correctly indicates a worsening.


Secondary Outcome Measures :
  1. Average Change From Baseline in BCVA in the Study Eye [ Time Frame: Baseline, 39 Months ]
    BCVA is measured using an eye chart and is reported as the number of letters read correctly (ranging from 0 to 100 letters) in the study eye. The lower the number of letters read correctly on the eye chart, the worse the vision (or visual acuity). The average BCVA is calculated across study visits for each patient. A positive number change from baseline indicates an improvement and a negative number change from baseline indicates a worsening.

  2. Change From Baseline in BCVA in the Study Eye [ Time Frame: Baseline, Month 39/Final Visit ]
    BCVA is measured using an eye chart and is reported as the number of letters read correctly (ranging from 0 to 100 letters) in the study eye. The lower the number of letters read correctly on the eye chart, the worse the vision (or visual acuity). A positive number change from baseline indicates an improvement and a negative number change from baseline indicates a worsening.

  3. Percentage of Patients With a BCVA Improvement of ≥10 Letters From Baseline in the Study Eye [ Time Frame: Baseline, Month 39/Final Visit ]
    BCVA is measured using an eye chart and is reported as the number of letters read correctly (ranging from 0 to 100 letters) in the study eye. The lower the number of letters read correctly on the eye chart, the worse the vision (or visual acuity). An increase in the number of letters read correctly indicates improvement and a decrease in the number of letters read correctly indicates a worsening.

  4. Average Change From Baseline in Retinal Thickness as Measured by Optical Coherence Tomography (OCT) [ Time Frame: Baseline, 39 Months ]
    OCT is a laser-based, noninvasive, diagnostic system that provides high-resolution, three-dimensional images of the retina from which retinal thickness can be measured. The average OCT retinal thickness is calculated across study visits for each patient. A negative number change from baseline indicates an improvement and a positive number change from baseline indicates a worsening.

  5. 10th Percentile for Time to BCVA Improvement of ≥15 Letters From Baseline in the Study Eye [ Time Frame: Baseline, 39 Months ]
    BCVA is measured using an eye chart and is reported as the number of letters read correctly (ranging from 0 to 100 letters) in the study eye. The lower the number of letters read correctly on the eye chart, the worse the vision (or visual acuity). Shorter durations of time to improvement are best. The 10th percentile represents the first 10% of patients to reach a BCVA improvement of ≥15 letters from baseline in the study eye.

  6. Percentage of Patients With BCVA Improvement of ≥15 Letters From Baseline in the Study Eye at 3-month Intervals [ Time Frame: Baseline, Month 3, Month 6, Month 9, Month 12, Month 15, Month 18, Month 21, Month 24, Month 27, Month 30, Month 33, Month 36, Month 39/Final Visit ]
    BCVA is measured using an eye chart and is reported as the number of letters read correctly (ranging from 0 to 100 letters) in the study eye. The lower the number of letters read correctly on the eye chart, the worse the vision (or visual acuity). An increase in the number of letters read correctly indicates improvement and a decrease in the number of letters read correctly indicates a worsening.


Eligibility Criteria
Go to 
Top of Page Study Description Study Design Arms and Interventions Outcome Measures Eligibility Criteria Contacts and Locations More Information

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Layout table for eligibility information
Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Key Inclusion Criteria:

  • 18 years of age or older with diabetic macular edema;
  • Decrease in visual acuity in at least one eye as a result of macular edema (20/50 or worse);
  • Visual acuity in other eye no worse than 20/200

Key Exclusion Criteria:

  • Known anticipated need for ocular surgery within first 12 months of study;
  • History of glaucoma or current high eye pressure requiring more than 1 medication;
  • Uncontrolled systemic disease;
  • Known steroid-responder;
  • Use of systemic steroids
  • Use of Warfarin/Heparin
Contacts and Locations
Go to 
Top of Page Study Description Study Design Arms and Interventions Outcome Measures Eligibility Criteria Contacts and Locations More Information

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00168389


Locations
Layout table for location information
United States, California
Inglewood, California, United States
Australia, New South Wales
Westmead, New South Wales, Australia
Canada, Ontario
Toronto, Ontario, Canada
Czech Republic
Prague, Czech Republic
Germany
Hamburg, Germany
Israel
Tel Aviv, Israel
Philippines
Rockwell Center, Makati, Philippines
Portugal
Coimbra, Portugal
South Africa
Cape Town, South Africa
Spain
Barcelona, Spain
Sponsors and Collaborators
Allergan
Investigators
Layout table for investigator information
Study Director: Medical Director Allergan
More Information
Go to 
Top of Page Study Description Study Design Arms and Interventions Outcome Measures Eligibility Criteria Contacts and Locations More Information
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

Layout table for additonal information
Responsible Party: Allergan
ClinicalTrials.gov Identifier: NCT00168389    
Other Study ID Numbers: 206207-010
First Posted: September 15, 2005    Key Record Dates
Results First Posted: August 4, 2014
Last Update Posted: August 4, 2014
Last Verified: July 2014
Additional relevant MeSH terms:
Layout table for MeSH terms
Macular Edema
Edema
Macular Degeneration
Retinal Degeneration
Retinal Diseases
Eye Diseases
Dexamethasone
Anti-Inflammatory Agents
Antiemetics
 Autonomic Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Gastrointestinal Agents
Glucocorticoids
Hormones
Hormones, Hormone Substitutes, and Hormone Antagonists
Antineoplastic Agents, Hormonal
Antineoplastic Agents