Study of Stored Tumor Samples in Young Patients With Brain Tumors

Brain and Central Nervous System Tumors Clinical Trial

Official title: Molecular and Histopathologic Characterization of Atypical Teratoid Rhabdoid Tumors, Choroid Plexus Carcinomas, Ependymomas, Medulloblastoma HGNET, CNS Embryonal Tumors and Gliomas of the Pediatric CNS

Status Recruiting

Clinical Trial Summary

This laboratory study is looking at stored tumor samples in young patients with brain tumors. Studying samples of tumor 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.

Clinical Trial Description

The overall objective of this non-therapeutic protocol is to develop and molecularly characterize patient-derived orthotopic xenografts (PDOXs), organoids and in vitro models derived from medulloblastomas, High Grade Neuroepithelial Tumors (HGNET), CNS embryonal tumors, Atypical Teratoid Rhabdoid Tumors (ATRTs), Choroid Plexus Carcinomas (CPCs), ependymomas, and gliomas. The investigators will characterize the genome-wide mutation, expression and epigenetic signatures of these models and compare them with the primary tumors from which they were derived, thus creating a well-characterized and invaluable resource for research on these rare and deadly pediatric brain tumors. This will also provide important insights into intratumoral heterogeneity, and molecular abnormalities that may influence the selective pressures driving evolution, and tumor growth as in PDOXs, organoids or in vitro cultures and define the relationship between these abnormalities and tumor histologic and clinical characteristics. This objective will be achieved by applying state-of-the-art DNA, RNA and epigenome analysis tools to the study of fresh frozen and/or cryopreserved, fixed and cultured tumor cells, PDOXs and organoids. The establishment of patient-derived orthotopic xenografts, organoids and cell cultures from each tumor sample will also allow for in vitro and in vivo analysis of tumor cell growth, signaling and therapeutic response. ;

Related Conditions & MeSH terms

• Brain and Central Nervous System Tumors
• Central Nervous System Neoplasms
• Ependymoma
• Medulloblastoma
• Nervous System Neoplasms
• Rhabdoid Tumor

• NCT number: NCT00897286
• Study type: Observational
• Source: St. Jude Children's Research Hospital
• Contact: Tabatha E. Doyle, RN
• Phone: 901-595-2544
• Email: tabatha.doyle@stjude.org
• Status: Recruiting
• Start date: November 30, 2004
• Completion date: February 2026