Genetic Study of Newly Diagnosed Central Nervous System Tumors in Young Children
RATIONALE: Genetic studies may help in understanding the genetic processes involved in the development of some types of cancer.
PURPOSE: Genetic study to learn more about genes involved in the development of central nervous system tumors in young children.
Central Nervous System Embryonal Neoplasm
|Study Design:||Observational Model: Cohort
Time Perspective: Prospective
|Official Title:||Gene Expression Profiling of Infant Embryonal Central Nervous System Tumors by Microarray Gene Chip Analysis: Angiogenesis, Invasion and Metastasis|
- Genes that are expressed in metastatic vs. non-metastatic tumors [ Time Frame: Prior to therapy ] [ Designated as safety issue: No ]
- Protein expression of genes found to be expressed [ Time Frame: Prior to therapy ] [ Designated as safety issue: No ]
|Study Start Date:||March 2001|
|Study Completion Date:||March 2003|
|Primary Completion Date:||March 2003 (Final data collection date for primary outcome measure)|
Newly diagnosed embryonal tumors
The participants in this study are infants (< 3 years of age) with newly diagnosed medulloblastoma, primitive neuroectodermal tumor, or other embryonal tumor, atypical teratoid/rhabdoid tumor, intracranial germ cell tumor, or choroid plexus carcinoma who have received no prior therapy with the exception of steroids and have consented to allow research studies on banked tissue specimens
- Identify known genes that have significantly different levels of expression, using microarray gene chip analysis, in infants with newly diagnosed metastatic vs non-metastatic embryonal central nervous system tumors.
- Determine the protein expression of genes identified by microarray analysis that are involved in cellular functions that regulate angiogenesis, invasion, or metastasis in this patient population.
- Determine the quantity of gene expression of the confirmed translationally expressed genes using semi-quantitative polymerase chain reaction.
OUTLINE: This is a multicenter study.
Tumor samples are analyzed using microarray gene chip analysis. Differentially expressed genes are evaluated for protein expression by standard immunohistochemistry and/or Western blot analysis, and gene expression is further quantified by semi-quantitative polymerase chain reaction.
PROJECTED ACCRUAL: Approximately 80-100 patients (20-25 with metastatic disease and 60-75 with non-metastatic disease) will be accrued for this study within 4-5 years.
|United States, California|
|UCSF Cancer Center and Cancer Research Institute|
|San Francisco, California, United States, 94143-0128|
|United States, District of Columbia|
|Children's National Medical Center|
|Washington, District of Columbia, United States, 20010-2970|
|United States, Massachusetts|
|Dana-Farber Cancer Institute|
|Boston, Massachusetts, United States, 02115|
|United States, North Carolina|
|Duke Comprehensive Cancer Center|
|Durham, North Carolina, United States, 27710|
|United States, Pennsylvania|
|Children's Hospital of Philadelphia|
|Philadelphia, Pennsylvania, United States, 19104|
|Children's Hospital of Pittsburgh|
|Pittsburgh, Pennsylvania, United States, 15213|
|United States, Tennessee|
|Saint Jude Children's Research Hospital|
|Memphis, Tennessee, United States, 38105-2794|
|United States, Texas|
|Baylor College of Medicine|
|Houston, Texas, United States, 77030|
|United States, Washington|
|Children's Hospital and Regional Medical Center - Seattle|
|Seattle, Washington, United States, 98105|
|Study Chair:||Tobey MacDonald, MD||Children's Research Institute|