Conditions: Adult Grade I Meningioma Adult Grade II Meningioma Adult Grade III Meningioma Adult Meningeal Hemangiopericytoma Adult Meningioma Recurrent Adult Brain Tumor
Allocation: NA | Intervention model: SINGLE_GROUP
Enrollment: 23
Healthy volunteers: no

Brief summary:
Phase II trial to study the effectiveness of imatinib mesylate in treating patients who have recurrent meningioma. Imatinib mesylate may stop the growth of tumor cells by blocking the enzymes necessary for tumor cell growth

Detailed description:
PRIMARY OBJECTIVE:

I. Determine the efficacy of imatinib mesylate, in terms of 6-month progression-free survival, of patients with recurrent meningioma.

SECONDARY OBJECTIVES I. Determine the response rate and overall survival of patients treated with this drug.

II. Evaluate the safety profile of this drug in these patients. III. Determine the pharmacokinetics of this drug in these patients. IV. Develop exploratory data concerning surrogate markers of of angiogenic activity in vivo using functional neuro-imaging studies and in vitro assays of serum angiogenic peptides of this drug in these patients.

V. Develop exploratory data concerning evidence of platelet-derived growth factor (PDGF) inhibition in tumor specimens taken from patients undergoing surgery VI. Develop exploratory data correlating molecular abnormalities in the tumor with response in patients treated with this drug.

OUTLINE: This is a multicenter study. Patients are stratified according to concurrent use of enzyme-inducing antiepileptic drugs (yes vs no), histology (benign vs atypical or malignant), neurofibromatosis positivity (yes vs no), and preoperative candidacy (yes vs no).

Patients receive oral imatinib mesylate once or twice daily. Courses repeat every 4 weeks in the absence of disease progression or unacceptable toxicity.

Patients are followed every 3 months.

PROJECTED ACCRUAL: A total of 60 patients (30 per stratum) will be accrued for this study within 8-12 months.

Arms:
arm 1: Patients receive oral imatinib mesylate once or twice daily. Courses repeat every 4 weeks in the absence of disease progression or unacceptable toxicity.

Other: pharmacological study/ laboratory biomarker analysis

Interventions: intervention 1: imatinib mesylate intervention 2: laboratory biomarker analysis intervention 3: pharmacological study
Intervention descriptions: intervention 1: Given orally intervention 2: Correlative studies intervention 3: Correlative studies

Protocol document: