Phase II Trial of Conventional Radiotherapy With Stereotactic Radiosurgery to High Risk Tumor Regions as Determined by Functional Imaging in Patients With Glioblastoma Multiforme
Phase II Trial of Conventional Radiotherapy With Stereotactic Radiosurgery to High Risk Tumor Regions as Determined by Functional Imaging in Patients With Glioblastoma Multiforme
RATIONALE: Stereotactic radiosurgery may be able to send x-rays directly to the tumor and cause less damage to normal tissue. Radiation therapy uses high-energy x-rays to kill tumor cells. Giving stereotactic radiosurgery together with radiation therapy may kill more tumor cells.
PURPOSE: This phase II trial is studying how well giving stereotactic radiosurgery together with radiation therapy works in treating patients with glioblastoma multiforme.
OBJECTIVES:
Primary
Secondary
OUTLINE: This is a pilot study.
Patients undergo stereotactic radiosurgery to high-risk areas of active tumor determined by MR-spectroscopy. No more than 2 weeks later, patients undergo conventional radiotherapy once daily, 5 days a week, for 6 weeks.
Quality of life is assessed at baseline, weekly during radiotherapy, at 1 and 3 months after completion of radiotherapy, and then every 3 months for 2 years, every 6 months for 3 years, and annually thereafter.
After completion of study treatment, patients are followed periodically for at least 5 years.
PROJECTED ACCRUAL: A total of 35 patients will be accrued for this study.
DISEASE CHARACTERISTICS:
Histologically confirmed grade IV malignant glioblastoma multiforme
Post-operative diagnostic contrast-enhanced MRI scan with MR spectroscopy must be performed prior to initiating study treatment
High-risk area of active tumor without margin by MR spectroscopy
Meets the following criteria for radiosurgery:
No multifocal or recurrent malignant glioma
PATIENT CHARACTERISTICS:
Performance status
Life expectancy
Hematopoietic
Hepatic
Renal
Other
PRIOR CONCURRENT THERAPY:
Chemotherapy
Endocrine therapy
Radiotherapy
Surgery
Other