A Phase 2 Study of O-Benzylguanine (O-BG) and Temozolomide in Patients With Glioblastoma Progressing at Least 3 Months After Completion of Primary Treatment With Radiation Therapy and Temozolomide
试验速览
- 阶段
- 2 期
- 状态
- 终止
- 入组人数
- 12
- 试验地点
- 2
- 主要终点
- Confirmed Best Objective Tumor Response Rate (Complete or Partial Response) in Patients With Methylguanine Methyltransferase (MGMT)-Positive Tumors as Assessed by Immunohistochemistry (IHC)
研究概览
简要总结
RATIONALE: Drugs used in chemotherapy, such as O(6)-benzylguanine and temozolomide, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving more than one drug (combination chemotherapy) may kill more tumor cells.
PURPOSE: This phase II trial is studying the side effects and how well giving O(6)-benzylguanine together with temozolomide works in treating patients with glioblastoma multiforme that did not respond to previous temozolomide and radiation therapy.
详细描述
OBJECTIVES:
- Determine the antitumor activity of O6-benzylguanine and temozolomide in patients with temozolomide-resistant methylguanine methyltransferase-positive or -negative glioblastoma multiforme previously treated with radiotherapy.
- Determine, preliminarily, the toxicity of this regimen in these patients.
OUTLINE: Patients receive O6-benzylguanine intravenous (IV) over 1 hour and oral temozolomide once daily on days 1-5. Treatment repeats every 28 days in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed periodically for at least 6 months.
PROJECTED ACCRUAL: A total of 100 patients will be accrued for this study.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 120 Years（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-benzylguanine & Temozolomide in Glioblastoma
Patients receive O6-benzylguanine intravenous over 1 hour and oral temozolomide once daily on days 1-5. Treatment repeats every 28 days in the absence of disease progression or unacceptable toxicity.
干预措施: O6-benzylguanine (Drug)
O6-benzylguanine & Temozolomide in Glioblastoma
Patients receive O6-benzylguanine intravenous over 1 hour and oral temozolomide once daily on days 1-5. Treatment repeats every 28 days in the absence of disease progression or unacceptable toxicity.
干预措施: temozolomide (Drug)
结局指标
主要结局
Confirmed Best Objective Tumor Response Rate (Complete or Partial Response) in Patients With Methylguanine Methyltransferase (MGMT)-Positive Tumors as Assessed by Immunohistochemistry (IHC)
时间窗: 2-4 weeks
The date of response will be the date the response is first radiographically documented following initiation of therapy (typically, the date of the actual imaging modality). Complete response is complete disappearance of all measurable and evaluable disease. No new lesions. No evidence of non-evaluable disease. Partial response is greater than or equal to a 50% decrease compared to baseline in the sum of products of perpendicular diameters of all measurable lesions.
次要结局
- Objective Tumor Response Rate in Patients With Methylguanine Methyltransferase (MGMT)-Negative Tumors as Assessed by Immunohistochemistry (IHC)(2-4 weeks)
- Overall Survival(up to 2 years)
- Toxicity as Assessed by the Common Terminology Criteria in Adverse Events (CTCAE v 3)(18 months and 4 days)
- Best Overall Response(up to 2 years)
- Progression-free Survival(up to 2 years)
研究者
Mark Gilbert, M.D.
Branch Chief, Neuro-Oncology Branch
National Institutes of Health Clinical Center (CC)