Use of EF5 to Measure the Oxygen Level in Tumor Cells of Patients Undergoing Surgery or Biopsy for Newly Diagnosed Supratentorial Malignant Glioma

Overview

This clinical trial is using EF5 to measure the oxygen level in tumor cells of patients undergoing surgery or surgery biopsy for newly diagnosed supratentorial malignant glioma. Diagnostic procedures using the drug EF5 to measure the oxygen level in tumor cells may help in planning cancer treatment

PRIMARY OBJECTIVES: I. Determine the presence and pattern of etanidazole derivative EF5 binding with tumor, based on image and cellular analyses, in patients undergoing surgery or biopsy for newly diagnosed supratentorial malignant gliomas. II. Determine the level of EF5 binding within histologic subtypes of this tumor in these patients. Compare the relationship between hypoxia and clinical outcomes in patients with glioblastoma multiforme (GBM) vs non-GBM. III. Determine the spatial relationships between EF5 binding and tumor tissue biomarkers and pathophysiologic processes (e.g., necrosis, proliferation, and apoptosis) in these patients. IV. Determine the relationship between EF5 binding and Eppendorf needle electrode measurements in these patients. OUTLINE: Patients receive etanidazole derivative EF5 IV over 1-2½ hours once within 1-2 days before surgical resection or biopsy. Tumor tissue, normal tissue, and/or tumor-infiltrated lymph node samples are collected during surgery and stained for biological markers. Fluorescent immunohistochemistry techniques are used to determine the presence, distribution, and levels of EF5 binding. Patients are followed at 1 month, every 3 months for 1 year, every 4 months for 1 year, every 6 months for 1 year, and then annually thereafter. PROJECTED ACCRUAL: A total of 48 patients will be accrued for this study within 1½-2 years.