A Phase III Study of Radiation Therapy (RT) and O6-Benzylguanine (O6-BG) Plus BCNU Versus RT and BCNU Alone for Newly Diagnosed Glioblastoma Multiforme (GBM) and Gliosarcoma
试验速览
- 阶段
- 3 期
- 状态
- 已完成
- 入组人数
- 183
- 试验地点
- 163
- 主要终点
- Survival
研究概览
简要总结
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Radiation therapy uses high-energy x-rays to damage tumor cells. O6-benzylguanine may help carmustine kill more tumor cells by making tumor cells more sensitive to the drug. It is not yet known whether radiation therapy and carmustine are more effective with or without O6-benzylguanine.
PURPOSE: Randomized phase III trial to compare the effectiveness of radiation therapy plus carmustine with or without O6-benzylguanine in treating patients who have newly diagnosed glioblastoma multiforme or gliosarcoma.
详细描述
OBJECTIVES:
- Compare the overall survival, failure-free survival, and progression-free survival of patients with newly diagnosed glioblastoma multiforme or gliosarcoma treated with radiotherapy and carmustine with or without O6-benzylguanine.
- Compare the frequency and severity of toxic effects of these regimens in these patients.
- Correlate the survival of these patients with the expression of O6-alkylguanine-DNA alkyltransferase.
OUTLINE: This is a randomized study. Patients are stratified according to age (under 50 vs 50 and over), prior surgery (biopsy only vs resection), and Zubrod performance status (0-1 vs 2). Patients are randomized to 1 of 2 treatment arms.
- Arm I: Patients undergo radiotherapy daily 5 days a week over 7 weeks for a total of 34 fractions. Patients also receive chemotherapy comprising O6-benzylguanine IV over 1 hour followed 6 hours later by carmustine IV over 1 hour on day 1 of radiotherapy. Chemotherapy repeats every 6 weeks for a maximum of 7 courses in the absence of disease progression or unacceptable toxicity.
- Arm II: Patients undergo radiotherapy as in arm I. Patients receive carmustine IV as in arm I.
Patients are followed at week 48, every 4 months for 1 year, and then every 6 months for 4 years.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- 未提供
排除标准
- 未提供
研究组 & 干预措施
O6-BG + BCNU + Radiation Therapy
O6-BG: 120 mg/m^2 IV over 1 hour on day 1 of each cycle BCNU: 40 mg/m^2 IV over 1 hour on day 1 of each cycle 6 hours after O6-BG dose. Radiation Therapy: 5 days/week using one fraction per day and a dose of 180 cGy per fraction. Initial target volume is dose of 5040 cGy in 28 fractions with boost target volume of 1080 cGy in 6 fractions.
干预措施: carmustine (Drug)
O6-BG + BCNU + Radiation Therapy
O6-BG: 120 mg/m^2 IV over 1 hour on day 1 of each cycle BCNU: 40 mg/m^2 IV over 1 hour on day 1 of each cycle 6 hours after O6-BG dose. Radiation Therapy: 5 days/week using one fraction per day and a dose of 180 cGy per fraction. Initial target volume is dose of 5040 cGy in 28 fractions with boost target volume of 1080 cGy in 6 fractions.
干预措施: radiation therapy (Radiation)
O6-BG + BCNU + Radiation Therapy
O6-BG: 120 mg/m^2 IV over 1 hour on day 1 of each cycle BCNU: 40 mg/m^2 IV over 1 hour on day 1 of each cycle 6 hours after O6-BG dose. Radiation Therapy: 5 days/week using one fraction per day and a dose of 180 cGy per fraction. Initial target volume is dose of 5040 cGy in 28 fractions with boost target volume of 1080 cGy in 6 fractions.
干预措施: O6-Benzylguanine (Drug)
BCNU + Radiation Therapy
BCNU: 40 mg/m^2 IV over 1 hour on day 1 of each cycle. Radiation Therapy: 5 days/week using one fraction per day and a dose of 180 cGy per fraction. Initial target volume is dose of 5040 cGy in 28 fractions with boost target volume of 1080 cGy in 6 fractions.
干预措施: carmustine (Drug)
BCNU + Radiation Therapy
BCNU: 40 mg/m^2 IV over 1 hour on day 1 of each cycle. Radiation Therapy: 5 days/week using one fraction per day and a dose of 180 cGy per fraction. Initial target volume is dose of 5040 cGy in 28 fractions with boost target volume of 1080 cGy in 6 fractions.
干预措施: radiation therapy (Radiation)
结局指标
主要结局
Survival
时间窗: assessed every 6 weeks for 42 weeks, then every 4 months for one year, followed by every 6 months for years 2 through 5
次要结局
- Time to treatment failure(assessed every 6 weeks for 42 weeks, then every 4 months for one year, followed by every 6 months for years 2 through 5)
- Progression-free survival(assessed every 6 weeks for 42 weeks, then every 4 months for one year, followed by every 6 months for years 2 through 5)
- Toxicity(assessed weekly for 42 weeks)