Studying Mechanisms of Radiation Therapy Resistance in Samples From Younger Patients With Rhabdomyosarcoma

July 13, 2016 updated by: Children's Oncology Group

Observational - Identifying and Validating Novel Mechanisms of Radiation Resistance in Rhabdomyosarcoma

This laboratory study is looking into mechanisms of radiation therapy resistance in samples from younger patients with rhabdomyosarcoma. Studying samples of tissue from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. It may also help doctors find better ways to treat cancer

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Observational Study Model: Cohort Time Perspective: Retrospective Biospecimen Retention: Samples with DNA Biospecimen Description: Tissue Study Population Description: Primary care clinic Sampling Method: Non-probability sample

OBJECTIVES:

I. Determine the molecular response/resistance signatures with radiotherapy and standard chemoradiation treatments using the xenograft model of the Pediatric Preclinical Testing Program (PPTP).

II. Validate these novel pathways/biomarkers by their detection within clinically annotated patient tumor tissue samples and testing their associations with clinical response, local control rates, and overall survival rates.

OUTLINE: Archived tissue samples of matched primary-relapsed and non-matched primary are analyzed for genomic DNA, DNA methylation profiles, RNA sequencing, differences between alveolar rhabdomyosarcoma (ARMS) and embryonal rhabdomyosarcoma (ERMS), gene expression profiles, target-of-rapamycin complex 1 (TORC1) and TORC2 pathway intermediates, and paired box 3 (PAX3)/forkhead box O1 (FOXO1) translocation by microarray, immunohistochemical staining, and fluorescence in situ hybridization (FISH).

Study Type

Observational

Enrollment (Anticipated)

20

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
    • California
      • Monrovia, California, United States, 91006-3776
        • Children's Oncology Group

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

  • ADULT
  • OLDER_ADULT
  • CHILD

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients with rhabdomyosarcoma enrolled on COG-D9902.

Description

Inclusion Criteria:

  • Tissues requested from the Children Oncology Group (COG) sarcoma banking protocol COG-D9902

  • All subtypes of rhabdomyosarcoma specimens

    • Matched primary-relapsed specimens (from same patient, separated by time):

      • Frozen tissue if available
      • Scrolls of formalin-fixed paraffin-embedded tissue (if frozen not available)
      • 10 unstained formalin-fixed paraffin-embedded thin sections

    • All other general (primary or relapsed) cases

      • 10 unstained formalin-fixed paraffin-embedded thin sections

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
Correlative (laboratory biomarker analysis)
Archived tissue samples of matched primary-relapsed and non-matched primary are analyzed for genomic DNA, DNA methylation profiles, RNA sequencing, differences between alveolar rhabdomyosarcoma (ARMS) and embryonal rhabdomyosarcoma (ERMS), gene expression profiles, target-of-rapamycin complex 1 (TORC1) and TORC2 pathway intermediates, and paired box 3 (PAX3)/forkhead box O1 (FOXO1) translocation by microarray, immunohistochemical staining, and fluorescence in situ hybridization (FISH).
Other: laboratory biomarker analysis
Correlative studies

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Molecular response
Time Frame: Up to 1 year
Up to 1 year
Novel pathway/biomarkers detected within clinically annotated patient tumor tissue samples
Time Frame: Up to 1 year
Up to 1 year

Collaborators and Investigators

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

Sponsor

Children's Oncology Group

Collaborators

National Cancer Institute (NCI)

Investigators

  • Principal Investigator: Christopher Pelloski, MD, Children's Oncology Group

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

June 1, 2012

Primary Completion (ACTUAL)

October 1, 2013

Study Registration Dates

First Submitted

June 20, 2012

First Submitted That Met QC Criteria

June 20, 2012

First Posted (ESTIMATE)

June 22, 2012

Study Record Updates

Last Update Posted (ESTIMATE)

July 14, 2016

Last Update Submitted That Met QC Criteria

July 13, 2016

Last Verified

July 1, 2016

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • ARST12B6
  • NCI-2012-01979 (REGISTRY: CTRP (Clinical Trial Reporting Program))

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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