Conditions: Malignant Glioma Glioblastoma Gliosarcoma
Keywords: malignant glioma glioblastoma gliosarcoma Avastin bevacizumab Topotecan Hycamtin Temozolomide Temodar Pro00019960 Vredenburgh Duke Desjardins
Allocation: NA | Intervention model: SINGLE_GROUP
Enrollment: 80
Healthy volunteers: no

Brief summary:
This is a phase II study of the combination of radiation therapy, temozolomide and Avastin followed by Avastin, temozolomide, and topotecan in grade IV malignant glioma patients.

Detailed description:
The primary objective of this study is to use 6-month progression-free survival to assess the efficacy of the combination of radiation therapy, temozolomide and Avastin followed by Avastin, temozolomide, and topotecan in the treatment of grade IV malignant glioma patients following surgical resection. Secondary objectives are to determine the overall survival following the combination of radiation therapy, temozolomide and Avastin followed by Avastin, temozolomide, and topotecan and to describe the toxicity of radiation therapy, temozolomide and Avastin followed by Avastin, temozolomide, and topotecan.

The study will have survival and toxicity endpoints. Patients will be treated with standard radiation therapy and daily temozolomide for 6 and a half weeks of radiation. Avastin will be administered every other week beginning a minimum of 28 days after the last major surgical procedure, open biopsy, or significant traumatic injury. Following completion of radiation therapy, patients will have a MRI and if there is no evidence of disease progression, patients will receive 12 cycles of Avastin, temozolomide, and topotecan (beginning a minimum of 14 days after the last radiation treatment). Subjects will be identified by the investigator as those patients who have newly diagnosed grade 4 malignant glioma (glioblastoma multiforme or gliosarcoma), and be within 6 weeks of the last major surgical procedure, craniotomy, open biopsy, or stereotactic biopsy.

Fifty (50) patients will initially be accrued to the study and the overall efficacy of the treatment regimen assessed. Analyses will be conducted within subgroups defined by methylation status.

Early side effects of radiation that may start during radiation include hair loss, scalp redness, inflammation of the ear canals, and fatigue. There is a small chance of long-term effects from radiation, occurring after months or years after completion. These may include worsening of mental function, hearing, vision, strength and coordination. In initial Phase I and II clinical trials, four potential Avastin-associated safety signals were identified: hypertension, proteinuria, thromboembolic events, and hemorrhage. Temozolomide has been well tolerated by both adults and children with the most common toxicity being mild myelosuppression. Other, less likely, potential toxicities include nausea and vomiting, constipation, headache, alopecia, rash, burning sensation of skin, esophagitis, pain, diarrhea, lethargy, and hepatotoxicity. With topotecan, reversible myelosuppression with leukopenia and thrombocytopenia is dose limiting. Nausea and vomiting, as well as diarrhea and alopecia, are frequent. Moderate fatigue, transient elevation of hepatic transaminase levels, stomatitis, anemia, fever, mucositis, flu-like symptoms, and rash have been reported.

Arms:
arm 1: Patients are treated with standard radiation therapy and daily temozolomide at 75 mg/ m2 daily for 6.5 weeks of radiation. Following completion of radiation therapy, patients have a MRI and, if there is no evidence of disease progression, patients receive 12 cycles of Avastin, temozolomide, and topotecan. Beginning a minimum of 14 days after the last radiation treatment, the Avastin is dosed at 10 mg/kg every other week; temozolomide is given at 150 mg/m2 daily the first 5 days in combination with topotecan on days 2 through 6 at 1.5 mg/ m2 for patient not taking EIAEDs and 2.0 mg/ m2 for patients taking EIAEDs on days 2-6 of each 28-day.

Interventions: intervention 1: Bevacizumab intervention 2: Temozolomide intervention 3: Radiation Therapy (XRT) intervention 4: Topotecan
Intervention descriptions: intervention 1: Bevacizumab (Avastin) at 10 mg/kg every other week during standard radiation therapy (XRT). Following XRT, bevacizumab will remain at 10 mg/kg every other week. intervention 2: Daily temozolomide at 75 mg/ m2 daily for 6.5 weeks of radiation therapy (XRT). Following XRT, temozolomide will be dosed at 150 mg/m2 daily the first 5 days of each 28-day cycle. intervention 3: Standard radiation therapy for approximately 6.5 weeks intervention 4: Following standard radiation therapy, patients will receive topotecan on days 2 through 6 of each 28-day cycle at a dose of 1.5 mg/m2 for patients not taking enzyme-inducing anti-epileptic drugs (EIAEDs) and 2.0 mg/m2 for patients taking EIAEDs.

Protocol document: