Irinotecan Plus Lenalidomide in Adult Patients With Recurrent Glioblastoma Multiforme: Phase I

The goal of this clinical research study is to find the highest tolerable dose of lenalidomide combined with Camptosar (irinotecan) as well as to see if this drug combination can help control malignant gliomas. Researchers will also study if a special magnetic resonance imaging (MRI) technique (dynamic MRI scan) is useful in looking at the effect of treatment on the tumor. Another goal is to learn the effect of lenalidomide on tumor tissue in patients who need surgery for the disease.