Genetic Biomarkers in Saliva Samples From Patients With Ewing Sarcoma

This study is currently recruiting participants. (see Contacts and Locations)
Verified November 2015 by Children's Oncology Group
National Cancer Institute (NCI)
Information provided by (Responsible Party):
Children's Oncology Group Identifier:
First received: June 10, 2013
Last updated: November 16, 2015
Last verified: November 2015
This clinical trial studies genetic biomarkers from saliva samples in patients with Ewing sarcoma. Studying samples of saliva from patients with cancer in the laboratory may help doctors learn more about changes that occur in deoxyribonucleic acid (DNA) and identify biomarkers related to cancer.

Condition Intervention
Ewing Sarcoma/Peripheral Primitive Neuroectodermal Tumor (PNET)
Other: laboratory biomarker analysis
Other: questionnaire administration

Study Type: Observational
Study Design: Observational Model: Family-Based
Time Perspective: Retrospective
Official Title: Genetic Epidemiology of Ewing's Sarcoma

Resource links provided by NLM:

Further study details as provided by Children's Oncology Group:

Primary Outcome Measures:
  • Main effect of gene polymorphisms [ Time Frame: Up to 5 years ] [ Designated as safety issue: No ]
    Risk ratios (RR) for the main effect of gene polymorphisms will be calculated using log-linear models. RRs and 95% confidence intervals for the gene-environment interaction are calculated by stratifying the likelihood according to case exposure.

Biospecimen Retention:   Samples With DNA

Estimated Enrollment: 1650
Study Start Date: December 2012
Estimated Primary Completion Date: January 2100 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
Ancillary-Correlative (genetic epidemiology of Ewing sarcoma)
Genomic DNA is extracted from participants' saliva samples and analyzed for expression of EWS-FLI1 and other ES-target genes.
Other: laboratory biomarker analysis
Correlative studies
Other: questionnaire administration
Ancillary studies

Detailed Description:


I. To determine the association between the length of Ewing sarcoma breakpoint region 1-Friend leukemia virus integration 1 (EWS-FLI1) fusion protein binding sites (microsatellites) and risk of Ewing's sarcoma (ES).

II. To determine the frequency and commonality of Caucasian ancestral markers in cases of ES self-identified as non-Caucasian (African-American, Asian, Hispanic).

III. To determine the association between genomic variants in ES-related genes and hernia development (i.e. the integrin signaling pathway) and risk of ES.


Genomic DNA is extracted from participants' saliva samples and analyzed for expression of EWS-FLI1 and other ES-target genes.


Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Patients with a diagnosis of Ewing Sarcoma meeting other criteria.

Inclusion Criteria:

  • The patient is enrolled on ACCRN07
  • The patient has a diagnosis of Ewing Sarcoma (International Classification of Diseases [ICD] code morphology 9260; topography C40.0-C41.9, C76.0-C76.8, C80.9) and is registered with Children's Oncology Group (COG) by a North American member institution
  • The patient must be diagnosed with Ewing sarcoma between December 24, 2007 and December 31, 2015
  • The patient must have at least one biological parent alive and willing to participate
  • All questionnaire respondents must understand English or Spanish
  • Concomitant treatment on a therapeutic trial is not required
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01876303

United States, California
Children's Oncology Group Recruiting
Monrovia, California, United States, 91006-3776
Contact: Joshua D. Schiffman, MD    801-585-5270   
Principal Investigator: Joshua D. Schiffman, MD         
Sponsors and Collaborators
Children's Oncology Group
National Cancer Institute (NCI)
Principal Investigator: Joshua Schiffman, MD Children's Oncology Group
  More Information

No publications provided

Responsible Party: Children's Oncology Group Identifier: NCT01876303     History of Changes
Other Study ID Numbers: AEPI10N5, NCI-2012-02210, AEPI10N5, AEPI10N5, U10CA098543
Study First Received: June 10, 2013
Last Updated: November 16, 2015
Health Authority: United States: Institutional Review Board

Additional relevant MeSH terms:
Sarcoma, Ewing
Neuroectodermal Tumors
Neuroectodermal Tumors, Primitive
Neuroectodermal Tumors, Primitive, Peripheral
Neoplasms by Histologic Type
Neoplasms, Bone Tissue
Neoplasms, Connective Tissue
Neoplasms, Connective and Soft Tissue
Neoplasms, Germ Cell and Embryonal
Neoplasms, Glandular and Epithelial
Neoplasms, Nerve Tissue
Neoplasms, Neuroepithelial
Osteosarcoma processed this record on November 27, 2015