Radiation Therapy in Treating Young Patients With Gliomas
RATIONALE: Specialized radiation therapy that delivers radiation directly to the tumor may kill more tumor cells and cause less damage to normal tissue.
PURPOSE: This phase II trial is studying how well radiation therapy works in treating young patients with gliomas.
|Brain Tumor Central Nervous System Tumor||Radiation: radiation therapy||Phase 2|
|Study Design:||Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
|Official Title:||A Phase II Study of Conformal Radiotherapy In Patients With Low-Grade Gliomas|
- Marginal-failure Rate [ Time Frame: Up to 5 years ]Patients who do not recur as well as those with either central or distant recurrence would be treatment successes for this endpoint. Monitoring will be based on a Bayesian rule, with binomial likelihood and a Beta on the parameter p, the proportion of failures that are marginal failures.
- Progression-free Survival Probability [ Time Frame: 3 years ]To estimate the progression-free survival rate for patients with recurrent, progressive or symptomatic low-grade gliomas after treatment with reduced field conformal radiation.
- Event-free Survival Probability [ Time Frame: 3 years ]To estimate the event-free survival rate for patients with recurrent, progressive or symptomatic low-grade gliomas after treatment with reduced field conformal radiation
- Overall Survival Probability [ Time Frame: 3 years ]To estimate the overall survival rate for patients with recurrent, progressive or symptomatic low-grade gliomas after treatment with reduced field conformal radiation.
- Quality of Life (QOL) [ Time Frame: Up to 5 years ]QOL accessed using the Behavior Assessment System for Children (BASC), the Adaptive Behavior Assessment System (ABAS), the Behavior Rating Inventory of Executive Function (BRIEF), and the Symptom Checklist-90-R (SCL-90-R).
- MIB-1 Labeling Index Using Immunohistochemical Techniques With the MIB-1 Antibody According to Established Methods [ Time Frame: At baseline ]The MIB-1 labeling Index will be calculated as the percentage of tumor nuclei that are immunoreactive.
- Correlation MIB-1 Labeling Index With PFS [ Time Frame: Up to 10 years ]The primary methods of analysis will be via stratified Cox regression
|Study Start Date:||November 2006|
|Primary Completion Date:||December 2013 (Final data collection date for primary outcome measure)|
Experimental: Treatment (radiotherapy)
Patients undergo reduced-field conformal radiation therapy 5 days a week for 6 weeks in the absence of disease progression or unacceptable toxicity.
Radiation: radiation therapy
Undergo 3D-CRT Undergo proton radiation therapy Undergo IMRT
- Determine the marginal-failure rate in young patients with low-grade gliomas treated with reduced-field conformal radiotherapy.
- Determine the progression-free survival, event-free survival, and overall survival rates of young patients treated with this regimen.
- Determine quality of life of patients treated with this regimen.
- Correlate MIB-1 labeling index with progression-free survival and overall survival of these patients.
OUTLINE: This is a multicenter study.
Patients undergo reduced-field conformal radiotherapy 5 days a week for 6 weeks in the absence of disease progression or unacceptable toxicity.
Quality of life is assessed at baseline or 6 weeks after completion of study treatment and then at 2 and 5 years (closed as of 10/27/2010).
After completion of study treatment, patients are followed every 3 months for 2 years, every 6 months for 2 years, and then annually thereafter.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00238264
Show 145 Study Locations
|Study Chair:||Joel M. Cherlow, MD||Todd Cancer Institute at Long Beach Memorial Medical Center|
|Study Chair:||Edward G. Shaw, MD||Wake Forest University Health Sciences|