Molecular Analysis of Retinoblastoma

December 13, 2016 updated by: St. Jude Children's Research Hospital
Retinoblastoma is a childhood tumor of the retina that affects approximately 1 in 18,000 children. Retinoblastoma is more prevalent in Central America, where most patients present with advanced intraocular and extraocular disease. Therefore, we have formed collaboration with Central American investigators to provide us with frozen retinoblastoma tumors from patients undergoing routine enucleation. The objective of this protocol is to begin to identify the mutations and gene expression changes that occur in retinoblastoma cells following RB1 gene inactivation in order to more effectively target chemotherapy for treating bilateral retinoblastoma.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

This is a biology protocol with no treatment regimen associated. Following routine enucleation of the retinoblastoma affected eye, a portion of the tumor will be removed and flash frozen and sent to St. Jude for RNA and DNA analysis. Some tissue will undergo histopathological analysis and tissue microarrays will be isolated.

Study Type

Observational

Enrollment (Actual)

41

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

  • Chile
      • Santiago, Chile
        • Hospital Calvo Mackenna
  • Honduras
      • Tegucigalpa, Honduras
        • Hospital Escuela Bloque Materno Infantil

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

Sampling Method

Non-Probability Sample

Study Population

Patients with retinoblastoma

Description

Inclusion Criteria:

  • Must have clinical diagnosis of retinoblastoma (to be confirmed histologically after enucleation)
  • Legal guardians must willing to sign an informed consent indicating that they are aware of this study and its possible benefits. Legal guardians will be given a copy of the consent form.
  • Patient is being seen at this AHOPCA institution:

Exclusion Criteria:

  • Ophthalmologist or oncologist is concerned that sampling will interfere with staging.
  • Diagnosis other than retinoblastoma.
  • Affiliated hospital is unable to provide pathologic evidence of retinoblastoma.

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

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Retinoblastoma
Other: Tissue samples taken from retinoblastoma
Tissue banking
Other: 5 ml peripheral blood
White blood cells will be isolated from the blood sample as a source of genomic DNA.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Identify genes exhibiting differential expression within intraocular disease tissue between patients having only intraocular involvement and those having extraocular involvement.
Time Frame: Indefinite
Indefinite

Collaborators and Investigators

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

Sponsor

St. Jude Children's Research Hospital

Collaborators

National Eye Institute (NEI)

Investigators

  • Principal Investigator: Rachel Brennan, MD, St. Jude Children's Research Hospital

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.

Helpful Links

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

April 1, 2007

Primary Completion (Actual)

December 1, 2016

Study Completion (Actual)

December 1, 2016

Study Registration Dates

First Submitted

July 17, 2008

First Submitted That Met QC Criteria

July 18, 2008

First Posted (Estimate)

July 21, 2008

Study Record Updates

Last Update Posted (Estimate)

December 14, 2016

Last Update Submitted That Met QC Criteria

December 13, 2016

Last Verified

December 1, 2016

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • MARB
  • 1R01EY018599 (U.S. NIH Grant/Contract)

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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