Biomarkers in Blood Samples From Young Patients With Newly Diagnosed Brain Tumors Undergoing Standard Radiation Therapy and Chemotherapy
RATIONALE: Studying samples of blood in the laboratory from patients receiving radiation therapy and chemotherapy may help doctors learn more about the effects of this treatment on cells. It may also help doctors understand how well patients respond to treatment.
PURPOSE: This research study is studying biomarkers in blood samples from young patients with newly diagnosed brain tumors undergoing standard radiation therapy and chemotherapy.
|Brain and Central Nervous System Tumors||Drug: systemic chemotherapy Other: laboratory biomarker analysis Procedure: therapeutic surgical procedure Radiation: radiation therapy|
|Study Design:||Masking: Open Label
Primary Purpose: Basic Science
|Official Title:||Immunologic Profile of Patients With Newly Diagnosed Medulloblastoma at Initial Diagnosis and During Standard Radiation and Chemotherapy|
- Peripherally circulating T-regulatory (T-reg) cells in patients with medulloblastoma or Chiari malformation
- Longitudinal side effects of standard radiotherapy and chemotherapy regimens on the overall population of lymphocytes as well as the fraction of circulating T-reg cells
- Effect of treatment on lymphocytes and T-reg cells
- Baseline fraction of circulating T-reg cells
|Study Start Date:||May 2010|
|Estimated Primary Completion Date:||July 2011 (Final data collection date for primary outcome measure)|
- Evaluate the fraction of peripherally circulating T-regulatory cells (T_regs) in pediatric patients with newly diagnosed medulloblastoma and compare it to the levels found in a control group of patients undergoing craniectomy for Chiari malformation.
- Evaluate the longitudinal effects of standard radiotherapy and chemotherapy regimens on the overall population of lymphocytes as well as the fraction of T_reg cells in patients with medulloblastoma.
- Determine the baseline fraction of T_reg cells in those with non-medulloblastoma posterior fossa tumors compared to levels found in patients undergoing decompression for Chiari malformation.
OUTLINE: This is a multicenter study.
Patients with Chiari malformation and patients with posterior fossa tumor undergo standard surgery. Patients with posterior fossa tumor also receive standard radiotherapy and chemotherapy.
Blood samples are collected at baseline and periodically to measure the level of circulating T-regulatory cells.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01233479
|United States, California|
|Childrens Hospital Los Angeles|
|Los Angeles, California, United States, 90027-0700|
|Lucile Packard Children's Hospital at Stanford University Medical Center|
|Palo Alto, California, United States, 94304|
|United States, District of Columbia|
|Children's National Medical Center|
|Washington, District of Columbia, United States, 20010-2970|
|United States, Illinois|
|Children's Memorial Hospital - Chicago|
|Chicago, Illinois, United States, 60614|
|United States, Maryland|
|NCI - Pediatric Oncology Branch|
|Bethesda, Maryland, United States, 20892|
|United States, New York|
|Memorial Sloan-Kettering Cancer Center|
|New York, New York, United States, 10065|
|United States, North Carolina|
|Duke Cancer Institute|
|Durham, North Carolina, United States, 27710|
|United States, Ohio|
|Cincinnati Children's Hospital Medical Center|
|Cincinnati, Ohio, United States, 45229-3039|
|United States, Pennsylvania|
|Children's Hospital of Pittsburgh of UPMC|
|Pittsburgh, Pennsylvania, United States, 15213|
|United States, Tennessee|
|St. Jude Children's Research Hospital|
|Memphis, Tennessee, United States, 38105|
|United States, Texas|
|Texas Children's Cancer Center and Hematology Service at Texas Children's Hospital|
|Houston, Texas, United States, 77030-2399|
|Principal Investigator:||Sri Gururangan, MD||Duke Cancer Institute|