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About
RATIONALE: Everolimus may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth and by blocking some of the blood flow to the tumor. Drugs used in chemotherapy, such as temozolomide, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Radiation therapy uses high-energy x-rays to kill tumor cells. Giving everolimus together with temozolomide and radiation therapy may kill more tumor cells.
PURPOSE: This phase I/II trial is studying the side effects and best dose of everolimus when given together with temozolomide and radiation therapy in treating patients with newly diagnosed glioblastoma.
Full description
OBJECTIVES:
OUTLINE: This is a multicenter, phase I dose-escalation study of everolimus followed by a phase II study.
Phase I (Mayo Clinic Rochester [MCR] AND Mayo Clinic Jacksonville [MCJ] ONLY):
Phase II (Open to MCR center ONLY) (All North Central Cancer Treatment Group [NCCTG] centers closed to accrual as of 02/17/11):
All patients undergo fludeoxyglucose (FDG)- or fluorothymidine-labeled PET/CT scans at baseline and periodically during treatment.
Patients undergo blood sample collection periodically for pharmacological studies. Samples are analyzed for everolimus blood levels and correlated with 18FDG uptake suppression in tumor and normal brain via LC-MSMS. Previously collected tumor tissue are analyzed for protein biomarkers including PTEN gene expression levels via fluorescence in situ hybridization (FISH) and immunohistochemistry (IHC) and phosphorylation on Ser473 and Ser308 of Akt and MGMT expression and promoter methylation via IHC. Samples are also analyzed for DNA sequencing. Some samples are banked for future studies.
After completion of study treatment, patients are followed every 2 months for 1 year, every 3 months for 1 year, and then every 6 months for 3 years.
PROJECTED ACCRUAL: A total of 138 patients (24 patients in phase I and 114 patients in phase II) will be accrued for this study.
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Inclusion and exclusion criteria
DISEASE CHARACTERISTICS:
Histologically confirmed diagnosis of 1 of the following:
Glioblastoma multiforme (grade 4 astrocytoma)
Other grade 4 astrocytoma variants (e.g., giant cell)
Gliosarcoma
Newly diagnosed disease
Measurable disease ≥ 1 cm³ (phase I patients only)
Some patients may be registered on protocol NCCTG-947252
No oligodendrogliomas or oligoastrocytomas
PATIENT CHARACTERISTICS:
Inclusion criteria:
Exclusion criteria:
Other active cancers requiring therapy to control disease or prior cancer diagnoses which pose a greater than 30% risk of death within the next 2 years
Gastrointestinal tract disease resulting in an inability to take oral medication or a requirement for IV alimentation, prior surgical procedures affecting absorption, or active uncontrolled peptic ulcer disease
Uncontrolled intercurrent illness including, but not limited to, any of the following:
Known HIV positivity
Positive hepatitis B antigen (HBsAg) or hepatitis C serology (HCV) tests
Any history of allergy or intolerance to dacarbazine (DTIC)
Significant traumatic injury within the past 21 days
Severe allergy to sulfa medications
Inability to tolerate levofloxacin with dapsone or pentamidine (inhaled or IV)
PRIOR CONCURRENT THERAPY:
Inclusion criteria:
Exclusion criteria:
Prior chemotherapy for any brain tumor
Prior temozolomide or mTOR inhibitor therapies
Any prior cranial radiotherapy
Planned immunization with attenuated live vaccines ≤ 7 days prior to and during study period
At least 21 days since prior major surgery (excluding neurosurgical biopsy, resection of brain tumor, or treatment of immediate post-neurosurgical complication [e.g., intracranial hematoma])
Concurrent or prior treatment for this cancer with any other investigational agents
Concurrent enzyme-inducing anticonvulsants (EIACs) or other strong inducers of CYP3A4 (i.e., carbamazepine, phenytoin, phenobarbital/primidone, rifabutin, rifampin, or St. John's wort)
Concurrent therapeutic doses of warfarin
Concurrent systematic leukocyte growth factors (e.g., G-CSF or GM-CSF), except for the treatment of severe neutropenia
Concurrent drugs or substances known to inhibit or induce CYP3A
Other concurrent chronic treatment with immunosuppressive agents except dexamethasone
Other concurrent anticancer agents
Concurrent live vaccines
Primary purpose
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122 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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