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Effects of Copaxone in the Retinal Function in Diabetic Patients After Panphotocoagulation

Diabetic Retinopathy Clinical Trial

Official title:
Effects of Glatiramer Acetate (Copaxone) in the Nerve Fiber Layer Thickness and Retinal Function in Diabetic Patients After Pan- Retinal Photocoagulation (PRP), a Double- Masked Randomized Clinical Trial.

Clinical Trial Summary

The purpose of this study is to evaluate the effects of Copaxone injections in retinal function and integrity in diabetic patients who underwent pan-retinal photocoagulation.

Clinical Trial Description

Purpose: to evaluate the neuroprotective effect of Copaxone (Glatiramer acetate) injections in the nerve fiber layer thickness and retinal function in diabetic patients who underwent panretinal photocoagulation (PRP).

Study Design: Double- Masked Randomized Clinical Trial. The follow up period estimated is 12 months after the last PRP section. Patients enrollment: Thirty patients with severe nonproliferative or early proliferative diabetic retinopathy and no previous laser treatment were enrolled. They were divided into two groups: "A" which received Copaxone or "B"which received mannitol (placebo) using a block randomization. Both drugs were offered by subcutaneous administration one week prior and in the three sections of PRP, one per week. All patients received and signed a written inform consent approved by the research ethics committee of UNIFESP.

Chronogram: All patients received a full ophthalmic examination (best-corrected Log-Mar visual acuity, slit lamp examination, applanation tonometry, fundus biomicroscopy and indirect fundus examination); functional examination (Humphrey 24-2 SITA STANDARD visual field, Electroretingrams and FDT C-20 strategy visual field) and anatomic examination (Color digital photography and fluorescein angiography (FAG), GDX- VCC, Optical Coherence Tomography (OCT) and Heidelberg Retinal Tomography (HRT) before PRP and 1st,3rd,6th months and 1 year after laser, or whenever needed for clinical reasons. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00677664
Study type Interventional
Source Federal University of São Paulo
Contact
Status Active, not recruiting
Phase Phase 4
Start date July 2006
Completion date September 2008
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