This research trial studies biomarkers in tumor tissue samples from patients with newly diagnosed neuroblastoma or ganglioneuroblastoma. Studying samples of tumor tissue from patients with cancer in the laboratory may help doctors identify and learn more about biomarkers related to cancer.
I. To prospectively analyze the factors that are currently used for risk-group assignment (v-myc avian myelocytomatosis viral oncogene neuroblastoma derived homolog [MYCN] copy number by fluorescent in situ hybridization [FISH], deoxyribonucleic acid [DNA] content by flow cytometry, and tumor histology using the International Neuroblastoma Pathologic Classification System) in neuroblastoma tumors at the time of diagnosis.
II. To maintain a reference bank containing clinically and genetically characterized frozen tumor tissue, tumor DNA and ribonucleic acid (RNA), histology slides and paraffin blocks, neuroblastoma-derived cell lines, patient serum and paired normal DNA obtained at the time of diagnosis, at the time of second-look surgery and at the time of relapse for future research studies.
III. To prospectively analyze 1p, 11q, 14q and 17q allelic status, MYCN copy number by quantitative polymerase chain reaction (PCR); and the expression pattern of neurotrophin-related genes in diagnostic neuroblastoma tumors, and assay for the presence of rare tumor cells in biological specimens by reverse transcription (RT)-PCR; these biological variables will be analyzed for independent clinical significance compared to MYCN amplification, International Neuroblastoma Staging System (INSS) stage, age, ploidy, and histologic variables in predicting either response to treatment or outcome.
IV. To build a database of the known biologic prognostic factors for patients on therapeutic studies.
V. To serve as a Registry for neuroblastoma patients whose tumors demonstrate clinical and genetic features defined as ?Low Risk? for treatment failure in the absence of adjuvant therapy.
I. To prospectively analyze the concordance between detection of MYCN amplification in tumor samples and quantitative detection of MYCN DNA in serum, and to analyze the prognostic significance of MYCN amplification as detected in serum samples.
II. To build a database that includes information regarding the presentation and natural history of neuroblastoma-associated health problems including but not limited to opsoclonus myoclonus ataxia (OMA) and/or spinal cord compression.
Patients undergo collection of blood, tissue, and bone marrow samples for analysis via RT-PCR, quantitative PCR, flow cytometry, and FISH.
After completion of study, patients are followed up periodically.
|Treatment||laboratory biomarker analysis, cytology specimen collection procedure|
|Clinical Study Identifier||NCT00904241|
|Sponsor||Children's Oncology Group|
|Last Modified on||23 January 2021|
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