Recurrent GBM With Maximal Neurosurgical Removal and Treatment With IORT

Device Description: The Xoft Axxent Electronic Brachytherapy System is a device that delivers radiation at a high dose rate. It is designed for use with Axxent applicators to treat lesions, tumors, and conditions in or on the body where radiation is indicated. The Axxent System and Applicators are FDA cleared under 510(k)s K050843, K072683, K090914 and K122951. The purpose of this trial is to assess the overall survival of patients treated with the Xoft Axxent eBx System for single-fraction IORT following maximal neurosurgical resection of recurrent glioblastoma. A historical comparison will be made for surgical excision and GliaSite radiation therapy (Chan 2005), which resulted in a median OS of 9.1 months. Radiation is delivered to the target tissue (adjacent to the resection margins). It avoids treatment delays and eliminates weeks of post-surgical radiation therapy during which residual cancer cells might proliferate.