Comparison of Two Laser Therapy Methods for PDR (PDR)

November 1, 2010 updated by: Shahid Beheshti University of Medical Sciences

Comparison Between Result and Side Effects of Treatment of Prolifrative Diabetic Retinopaty by Conventional and Extended Targeted Pan Retinal Photocoagolation

Proliferative diabetic retinopathy (PDR) is treated with conventional pan retinal photocoagulation (PRP) which can improve the visual prognosis in this complication significantly. However , the treatment may also resulting adverse effects such as blurring of central vision, visual field constriction and disturbance in dark adaptation and contrast vision. Extended targeted retinal coagulation (TRP) to the ischemic areas may cause regression of the neovascularization while minimizing some of the risks and complication associated of treatment of PDR with these two methods.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Interventional

Phase

  • Phase 2

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

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

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • patients with PDR condidate for photocoagulation teraphy
  • Pupil with dilatasion≥6mm
  • without privious treatment with anti VEGF drugs 3months before study
  • without privious vitroretinal sugery
  • without privoius lasertraphy

Exclusion Criteria:

  • To have NVI cricteria with increase of inraocular pressure
  • to have cataract or vitrus leakage which prevent lasertraphy
  • pupil smaller that 6mm
  • traditional retinal detachment
  • privious treatment with anti VEGF drugs 3months before study
  • privious PRP
  • patient unable to get wide field FAG

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
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: conventional prp
Procedure: conventional prp
pan retinal photocoagulation
Active Comparator: targeted PRP
Procedure: targeted prp
1200-1600 spot in far periphery retin, anterior equator

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
no leakage in widefield fluorescin angiography
Time Frame: 3 months after lasertraphy
3 months after lasertraphy

Collaborators and Investigators

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

Sponsor

Shahid Beheshti University of Medical Sciences

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

October 1, 2010

Primary Completion (Anticipated)

April 1, 2011

Study Completion (Anticipated)

May 1, 2011

Study Registration Dates

First Submitted

November 1, 2010

First Submitted That Met QC Criteria

November 1, 2010

First Posted (Estimate)

November 2, 2010

Study Record Updates

Last Update Posted (Estimate)

November 2, 2010

Last Update Submitted That Met QC Criteria

November 1, 2010

Last Verified

October 1, 2010

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 88100

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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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