Bortezomib, Temozolomide, and Regional Radiation Therapy in Treating Patients With Newly Diagnosed Glioblastoma Multiforme or Gliosarcoma

• Must be >- 18 years old, with a life expectancy > 8 weeks
• Histologically confirmed intracranial glioblastoma multiforme (GBM) or gliosarcoma
• Must submit an unstained paraffin block or slides from surgical procedure
• Patients without prior treatment and with prior diagnosis of lower-grade gliomas that have been upgraded to GBM after repeated resection allowed
• At least 21 days since cranial MRI or contrast CT scan OR ≥ 96 hours since cranial MRI or contrast CT scan for patients who underwent surgical resection
• Measurable or assessable disease
• Voluntary written informed consent obtained before performance of any study related procedure not part of normal medical care.
• Karnofsky performance status > 60%
• White Blood Count (WBC) ≥ 3,000/mm\^3
• absoulte neutrophil count(ANC) ≥ 1,500/mm\^3
• Platelet count ≥ 100,000/mm\^3
• Hemoglobin ≥ 10 g/dL (transfusion allowed)
• Bilirubin \< 2.5 times upper limit of normal (ULN)
• serum glutamic-oxaloacetic transaminase (SGOT) \< 2.5 times ULN
• Creatinine \< 1.5 mg/dL
• Creatinine clearance ≥ 20 mL/minute
• Serum sodium > 130 mmol/L
• Negative pregnancy test
• Fertile patients must use effective contraception
• Patients on Enzyme-Inducing Antiepileptic Drugs (EIAED) must be transitioned to non- EAIED for ≥ 2 weeks
• Concurrent full-dose warfarin or its equivalent (e.g., unfractionated and/or low molecular weight heparin) allowed

Exclusion Criteria:

• peripheral neuropathy ≥ grade 2
• Myocardial infarction within the past 6 months
• New York Heart Association (NYHA) class III or IV heart failure
• Uncontrolled angina
• Severe uncontrolled ventricular arrhythmias
• Electrocardiographic evidence of acute ischemia or active conduction system abnormalities
• hypersensitivity to bortezomib, boron, or mannitol
• serious medical or psychiatric illness that would interfere with study participation including, but not limited to, any of the following:
• Ongoing or active infection requiring IV antibiotics
• Psychiatric illness and/or social situations that would limit compliance with study requirements
• Disorders associated with a significant immunocompromised state (e.g., HIV, systemic lupus erythematosus)
• history of stroke within the past 6 months
• other malignancy within the past 3 years except completely resected basal cell carcinoma or squamous cell carcinoma of the skin, an in situ malignancy (i.e., cervical cancer), or low-risk prostate cancer after curative therapy
• significant medical illness that, in the investigator's opinion, cannot be adequately controlled with appropriate therapy or would compromise the patient's ability to tolerate this therapy
• disease that will obscure toxicity or dangerously alter drug metabolism
• viral hepatitis (HBV surface antigen positive) or active hepatitis C infection
• Prior or concurrent corticosteroids, automated external defibrillator, analgesics, and other drugs to treat symptoms or prevent complications allowed
• concurrent investigational drugs that must be stopped at least 4 months prior to therapy.
• prior radiotherapy to the brain
• prior cytotoxic or noncytotoxic drug therapy or experimental drug therapy (including chemotherapy, hormonal therapy, or immunotherapy) directed against the brain tumor
• prior polifeprosan 20 with carmustine implant (Gliadel wafer)
• concurrent stereotactic radiosurgery or brachytherapy
• concurrent sargramostim
• concurrent inducers of CYP450 3A4 (e.g., enzyme-inducing anti-epileptic drugs [EIAED])