Study Comparing 0.5mg of Ranibizumab and Higher Doses in the Treatment of Clinically Significant Diabetic Macular Edema

August 1, 2013 updated by: Philip J. ferrone, M.D.

A Phase I/II Study Comparing the Treatment of Clinically Significant Diabetic Macular Edema (CSDME) With 0.5mg Ranibizumab, 1.0mg Ranibizumab and 2.0mg Ranibizumab

The purpose of this study is to evaluate the safety and tolerability of Ranibizumab in patients with Clinically Significant Diabetic Macular Edema (CSDME). It will also compare treatment outcomes for patients receiving 0.5mg Ranibizumab and higher doses of 1.0mg and 2.0mg Ranibizumab.

Study Overview

Status

Completed

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

50

Phase

  • Phase 2
  • Phase 1

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

    • New York
      • Great Neck, New York, United States, 11021
        • Long Island Vitreoretinal Consultants
      • Hauppauge, New York, United States, 11749
        • Long Island Vitreoretinal Consultants

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:

  • Type I or Type II diabetic subjects
  • Vision between 20/20 and 20/400
  • Presence of Clinically Significant Diabetic Macular Edema

Exclusion Criteria:

  • Presence of any condition that would prevent clear visualization of the back of the eye
  • Uncontrolled glaucoma
  • Complications of glaucoma
  • Inflammation inside the eye
  • Certain prior eye surgeries, other than cataract surgery
  • Other eye diseases that may compromise the vision in the study eye
  • Certain prior eye treatments
  • Pregnancy
  • Uncontrolled health conditions
  • History of heart attack
  • History of stroke
  • Current participation in another investigational trial

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: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: 0.5mg transitioning to 2.0mg
Ranibizumab-intravitreal injection
0.5mg or 1.0mg intravitreal injection given monthly for 3 months then every other month if needed, for the first year.Patients may be treated monthly as needed. Patients in Cohort 1(the first 30 patients)will be eligible to receive treatment as needed with 2.0mg ranibizumab starting at month 24. Patients in Cohort 2(the remaining 20)will be eligible to receive treatment as needed with 2.0mg ranibizumab starting at month 12.Patients may receive 2.0mg ranibizumab for a period limited to 24 months following administration of the first 2.0mg dose. Patients completing 36 months will be eligible to be followed for an additional 24 months. Starting at Month 36, patients will be able to receive monthly, the assigned dose that they received/or could have received(if re-treatment criteria was met)at Month 35. 2/1/12 - the 2.0mg dose has been discontinued, all subjects will transition to the 0.5mg dose.
Active Comparator: 1.0 mg transitioning to 2.0mg
Ranibizumab-intravitreal injection
0.5mg or 1.0mg intravitreal injection given monthly for 3 months then every other month if needed, for the first year.Patients may be treated monthly as needed. Patients in Cohort 1(the first 30 patients)will be eligible to receive treatment as needed with 2.0mg ranibizumab starting at month 24. Patients in Cohort 2(the remaining 20)will be eligible to receive treatment as needed with 2.0mg ranibizumab starting at month 12.Patients may receive 2.0mg ranibizumab for a period limited to 24 months following administration of the first 2.0mg dose. Patients completing 36 months will be eligible to be followed for an additional 24 months. Starting at Month 36, patients will be able to receive monthly, the assigned dose that they received/or could have received(if re-treatment criteria was met)at Month 35. 2/1/12 - the 2.0mg dose has been discontinued, all subjects will transition to the 0.5mg dose.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
To evaluate safety and tolerability of ranibizumab in patients with clinically significant diabetic macular edema
Time Frame: month 12
month 12
To compare the treatment of clinically significant diabetic macular edema with 0.5 mg of ranibizumab to 1.0 mg ranibizumab
Time Frame: month 12
month 12

Secondary Outcome Measures

Outcome Measure
Time Frame
Mean change in visual acuity as measured by ETDRS from baseline to month 12, 24 36,48 and 60 in each arm.
Time Frame: month 12, 24, 36, 48 and 60
month 12, 24, 36, 48 and 60
Mean change in central retinal thickness on OCT from baseline to month 12, 24, 36, 48 and 60 in each arm
Time Frame: month 12, 24, 36,48 and 60
month 12, 24, 36,48 and 60
Changes observed on the fluorescein angiogram in each arm
Time Frame: Month 60
Month 60
Mean number of ranibizumab injections required in each arm
Time Frame: Month 60
Month 60
The need for "rescue therapy" with laser in each arm
Time Frame: Month 60
Month 60
Evaluate the efficacy and safety of ranibizumab in the fellow eye in the sub-group of patients who require treatment for clinically significant diabetic macular edema in the fellow eye
Time Frame: Month 60
Month 60

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Philip J. Ferrone, MD, Long Island Vitreoretinal Consultants

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

March 1, 2007

Primary Completion (Actual)

November 1, 2012

Study Completion (Actual)

December 1, 2012

Study Registration Dates

First Submitted

February 23, 2007

First Submitted That Met QC Criteria

February 23, 2007

First Posted (Estimate)

February 27, 2007

Study Record Updates

Last Update Posted (Estimate)

August 2, 2013

Last Update Submitted That Met QC Criteria

August 1, 2013

Last Verified

August 1, 2013

More Information

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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