A Study of Genetic and Environmental Factors and Their Effect on Response to Treatment With Lucentis (Ranibizumab) for Wet AMD

July 20, 2011 updated by: Oregon Health and Science University

The Effect of Genotype and Environmental Risk Factors on Treatment Response to Intravitreal Lucentis (Ranibizumab) for Neovascular AMD

The purpose of this study is to understand whether genes or certain factors in the environment determine how eyes will respond to Lucentis (ranibizumab) treatment. For example, whether having variants within specific genes means that a patient is likely to get better vision from treatment than another patient with different genes.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Age-related macular degeneration (AMD) is the leading cause of blindness in the developed world. The advanced stages of the disease are characterized by the development of geographic atrophy or choroidal neovascularization, both of which result in significant loss of vision. Development of intravitreal anti-VEGF agents such as ranibizumab has significantly improved outcomes for the neovascular for of the disease. However, it is not possible to predict which individuals will respond to the treatment.

The objective of this study is to establish the association between genetic factors and treatment response to intravitreal Lucentis. This will be accomplished by SNP-genotyping participants for AMD-susceptibility and candidate angiogenesis-pathway genes, collecting environmental risk factor variables and evaluating clinical outcomes. The aim of this pharmacogenetics study will be to identify patients at the outset of their treatment that require more intensive therapy.

Study Type

Interventional

Enrollment (Anticipated)

150

Phase

  • Phase 3

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

  • United States
    • Oregon
      • Portland, Oregon, United States, 97239
        • Casey Eye Institute, Oregon Health and Science University

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

50 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • All AMD-related CNV lesion types will be included.
  • Age >50 years
  • The study eye must never have received treatment for neovascular AMD
  • Visual acuity in treatment eye must be between 20/30 and 20/320 (ETDRS).

Exclusion Criteria:

  • Age <50 years;
  • Previous therapy in either eye for AMD or other retinal disease which may be used in the treatment of AMD;
  • Choroidal neovascularization not from AMD;
  • Concomitant non-AMD related maculopathy in study eye;
  • Active treatment for neovascular AMD in fellow eye;
  • Acuity loss or central field loss from non-AMD cause;
  • Pigment epithelial detachment without evidence of CNV;
  • Individuals in whom Lucentis is contraindicated;
  • Participation in another clinical trial in last three months
  • Pregnancy (positive pregnancy test) or lactation
  • Premenopausal women not using adequate contraception
  • Prior enrollment in the study
  • Any other condition that the investigator believes would pose a significant hazard to the subject if the investigational therapy were initiated

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: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
The primary outcome measure is clinical treatment response to intravitreal Lucentis, defined as: 'Clinical stabilization' : stabilization of visual acuity. 'Clinical improvement'; 'Clinical progression'
Time Frame: 12 months
12 months

Secondary Outcome Measures

Outcome Measure
Time Frame
Establish the association between environmental risk factors and treatment response to intravitreal Lucentis when controlling for genotype
Time Frame: 12 months
12 months
Association between central macular thickness as measured by ocular coherence tomography (OCT) in response to Lucentis treatment and genotype/environmental risk exposure.
Time Frame: 12 months
12 months
Median number of intravitreal ranibizumab (Lucentis) injections required per patient
Time Frame: 12 months
12 months

Collaborators and Investigators

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

Sponsor

Oregon Health and Science University

Investigators

  • Principal Investigator: Peter J Francis, MD PhD, Casey Eye Institute, Oregon Health and Science University

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

May 1, 2007

Primary Completion (Actual)

April 1, 2010

Study Completion (Actual)

April 1, 2010

Study Registration Dates

First Submitted

May 2, 2007

First Submitted That Met QC Criteria

May 3, 2007

First Posted (Estimate)

May 4, 2007

Study Record Updates

Last Update Posted (Estimate)

July 22, 2011

Last Update Submitted That Met QC Criteria

July 20, 2011

Last Verified

July 1, 2011

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • IRB00003335

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.

Clinical Trials on Macular Degeneration

Clinical Trials on Ranibizumab

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Costa Rica

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe