Conditions: Glioblastoma Gliosarcoma
Keywords: Glioblastoma Gliosarcoma Bevacizumab Avastin Erlotinib Tarceva Temozolomide Temodar
Allocation: NON_RANDOMIZED | Intervention model: SINGLE_GROUP
Enrollment: 74
Healthy volunteers: no

Brief summary:
This is a phase II study of Bevacizumab plus Temodar and Tarceva in patients with non-progressive glioblastoma or gliosarcoma. Patients must have stable disease immediately following a standard course of up-front radiotherapy and Temodar. All patients will receive Bevacizumab, Temodar and Tarceva. A total of 60 patients will be enrolled. Our hypothesis is that the combination of Bevacizumab plus Temodar and Tarceva will increase survival over that seen in historical controls who have newly diagnosed, non-progressive glioblastoma or gliosarcoma following radiotherapy plus Temodar and use Temodar alone.

Detailed description:
Patients with newly diagnosed glioblastoma or gliosarcoma are treated with standard of care radiation and temozolomide, plus the addition of Bevacizumab and Tarceva. The dose of temozolomide, Bevacizumab and radiation are the same for all patients. Tarceva dose is based upon the use of enzyme inducing anti-epileptic agents. Tarceva is given daily; Bevacizumab is given every 2 weeks; radiation is for 6 weeks, and temozolomide is given daily during radiotherapy and then in the adjuvant setting, is given on a 5-day schedule every 28 days. Patients are followed for progression and survival. The measure of response is MR scanning every 2 months. Dose adjustments are based upon the specific toxicity of the agent in question which differs for each agent (Bevacizumab, temozolomide, or Tarceva). Patients are not randomized, but assigned to an arm based on use of anti-epileptic agents.

Arms:
arm 1: Patients treated with the combination of radiation plus temozolomide (75 mg/m2 daily during radiotherapy) plus bevacizumab (10 mg/kg IV every two weeks during radiotherapy) plus tarceva (dose based upon use of EIAED, either 200 mg daily or 500 mg daily; given daily); all treatment begins at the start of radiotherapy and continues until tumor progression, death or excessive toxicity arm 2: Fractionated radiotherapy in daily doses of 1.8-2.0 Gy delivered 5 days per week over \~6 weeks, to a total dose of 59.4 to 60 Gy.

Adjuvant temozolomide 200 mg/m\^2/d x 5 d per 28-d cycle; Erlotinib 150-200 mg/d (or 500-600 mg/d for patients on enzyme-inducing antiepileptic drugs) on a continuous basis 7 days per week; Bevacizumab 10 mg/kg every 2 weeks

Interventions: intervention 1: Bevacizumab intervention 2: Tarceva intervention 3: Temozolomide
Intervention descriptions: intervention 1: Patients are given 10 mg/kg IV Q2 weeks. intervention 2: Patients receive 150 mg PO daily. If patients are not experiencing intolerable toxicity, they may escalate their dose to 200 mg PO daily. If patients are experiencing intolerable toxicity, their dose will be held until the toxicity improves or resolves, then re-treated at a lower dose level, i.e. 100 mg PO daily. intervention 3: Patients receive 200 mg/m2 for Days 1-5 of every 28 day cycle. Although the calendar days may be slightly altered, the patient should always receive this dose for 5 days within a treatment cycle. If the patient experiences certain toxicities specified in the protocol, Temodar will be held then given at a reduced dose, i.e. 150 mg/m2 Days 1-5.

Protocol document: