Conditions: Glioblastoma Gliosarcoma
Keywords: Glioblastoma Gliosarcoma glioblastoma multiforme (GBM) GBM Imatinib Mesylate Gleevec Hydroxyurea Droxia Hydrea Hydroxycarbamide Imatinib Brain tumor Malignant brain tumor Recurrent glioblastoma multiforme Progressive glioblastoma multiforme
Allocation: NON_RANDOMIZED | Intervention model: SINGLE_GROUP
Enrollment: 64
Healthy volunteers: yes

Brief summary:
Primary objective:

* To evaluate activity of imatinib mesylate and hydroxyurea among patients with progressive/recurrent grade II low-grade glioma (LGG) as measured by 12-month progression free survival

Secondary objectives:

* To evaluate progression-free survival (PFS), overall survival and objective response rate among patients with progressive/recurrent grade II LGG treated with imatinib mesylate plus hydroxyurea
* To assess safety and tolerability of imatinib mesylate + hydroxyurea in this population

Detailed description:
This is an open-label, single stage, uncontrolled, non-randomized Phase II study of continuous, daily doses of imatinib mesylate \& hydroxyurea in adult patients with progressive/recurrent Grade II low-grade glioma (LGG). The treatment cycle is defined as imatinib mesylate \& hydroxyurea administered daily for 28 days for purpose of scheduling evaluations. All patients who receive 1 or more doses of either imatinib mesylate or hydroxyurea will be evaluable for toxicity, whereas all patients who receive a minimum of 14 consecutive days of study regimen will be evaluable for response. Patients who discontinue therapy prior to receiving 14 consecutive days of study regimen will be regarded as ineligible for evaluation of response and will be replaced.

Arms:
arm 1: Grade II Astrocytoma arm 2: Grade II Oligodendroglioma or oligoastrocytomas

Interventions: intervention 1: Imatinib Mesylate & Hydroxyurea
Intervention descriptions: intervention 1: Imatinib administered orally on daily. Imatinib is local irritant \& must be taken in sitting position; mini of 2hrs should be allowed between last drug intake \& going to bed. Imatinib doses 400mg/600mg administered once daily, whereas daily doses of 800mg/\> administered as equally divided dose taken twice day. Dose for imatinib: Pts not receiving p450-inducing antiepileptic drugs: 400 mg/day. Pts receiving p450-inducing antiepileptic drugs: 500 mg twice day. It is recommended that pts take their prescribed imatinib mesylate at same time that they take their prescribed hydroxyurea, however, 30-60min interval between agents is acceptable if required for practical/other compliance issues.

Hydroxyurea administered orally twice day. Dosing will begin on day 1 of cycle 1 \& continue daily. Drug is approximately 80 percent bioavailable. Dose will be 500mg twice day for all pts.

Protocol document: