Studying Biomarkers in Samples From Younger Patients With Malignant Germ Cell Tumor Progression

NCT ID: NCT01433224

Last Updated: 2016-05-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

90 participants

Study Classification

OBSERVATIONAL

Study Start Date

2011-10-31

Study Completion Date

2016-05-31

Brief Summary

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RATIONALE: Studying samples of blood and 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.

PURPOSE: This research trial studies samples from younger patients with malignant germ cell tumor progression.

Detailed Description

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OBJECTIVES:

* Explore inter-tumoral heterogeneity in DNA methylation by tumor histology.
* Determine the genomic methylation pattern in the tumors.
* Correlate methylation pattern with tumor histology and clinical characteristics.
* Carry out exome capture and massively parallel sequencing on selected germ cell tumors (GCTs) and matched normal tissue.
* Perform exome capture and Solexa sequencing on a selected set of GCTs.
* Validate candidate mutations in an independent set of tumors.
* Determine the expression profile of mRNAs, lincRNAs and microRNAs in the tumors using RNA Seq.

OUTLINE: Archived blood and tumor tissue samples are analyzed for genomic methylation pattern, exome capture and sequencing, and candidate mutations by methylation-specific PCR techniques, single nucleotide polymorphism (SNP) arrays, and Solexa sequencing methods. Results are validated by using pyrosequencing assays and primer-extension assays. Methylation pattern is also associated with each patient's tumor histology and clinical data.

Conditions

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Childhood Germ Cell Tumor Extragonadal Germ Cell Tumor Ovarian Cancer Testicular Germ Cell Tumor

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

RETROSPECTIVE

Interventions

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DNA methylation analysis

Intervention Type GENETIC

RNA analysis

Intervention Type GENETIC

mutation analysis

Intervention Type GENETIC

nucleic acid sequencing

Intervention Type GENETIC

polymerase chain reaction

Intervention Type GENETIC

polymorphism analysis

Intervention Type GENETIC

laboratory biomarker analysis

Intervention Type OTHER

medical chart review

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

DISEASE CHARACTERISTICS:

* Tumor and blood specimens from patients registered on the Children Oncology Group (COG) Germ Cell Tumor Protocols, and from other study sites for non-COG patients, including Children's Medical Center, Dallas and the Dana-Farber Cancer Institute, Boston
* Patients' clinical data

PATIENT CHARACTERISTICS:

* Not specified

PRIOR CONCURRENT THERAPY:

* Not specified
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Cancer Institute (NCI)

NIH

Sponsor Role collaborator

Children's Oncology Group

NETWORK

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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James F. Amatruda, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Simmons Cancer Center

Other Identifiers

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COG-AGCT11B2

Identifier Type: OTHER

Identifier Source: secondary_id

AGCT11B2

Identifier Type: OTHER

Identifier Source: secondary_id

NCI-2011-03456

Identifier Type: REGISTRY

Identifier Source: secondary_id

AGCT11B2

Identifier Type: -

Identifier Source: org_study_id

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