Dose-Intense Temozolomide in Recurrent Glioblastoma

Temozolomide (Temodar) is an FDA approved medication for the treatment of newly diagnosed glioblastomas. In this study, we will be using temozolomide to treat recurrent glioblastomas. We will be using a different dose and schedule than the FDA approved dose and schedule. The purpose of this study is to determine if patients that have failed standard temozolomide treatment will respond to temozolomide when given at a different dose and schedule (21 days every 28 days).