Randomized Phase II Trial of Panitumumab, Erlotinib and Gemcitabine vs. Erlotinib and Gemcitabine in Patients With Untreated, Metastatic Pancreatic Adenocarcinoma
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 入组人数
- 104
- 试验地点
- 257
- 主要终点
- Overall Survival
研究概览
简要总结
RATIONALE: Drugs used in chemotherapy, such as gemcitabine, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Erlotinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Monoclonal antibodies, such as panitumumab, can block tumor growth in different ways. Some block the ability of tumor cells to grow and spread. Others find tumor cells and help kill them or carry tumor-killing substances to them. Panitumumab may also stop the growth of pancreatic cancer by blocking blood flow to the tumor.
PURPOSE: This randomized phase II trial is studying how well giving panitumumab together with gemcitabine and erlotinib works compared to giving gemcitabine and erlotinib alone in treating patients with metastatic pancreatic cancer.
详细描述
OBJECTIVES:
Primary
- To assess whether the addition of panitumumab (a dual-epidermal growth factor receptor inhibitor) to standard chemotherapy comprising gemcitabine hydrochloride and erlotinib hydrochloride results in an improvement in overall survival of patients with previously untreated, metastatic adenocarcinoma of the pancreas.
Secondary
- To compare objective response rates, progression-free survival, time to treatment failure, quality of life, and adverse event rates in patients treated with these regimens.
- To evaluate the downstream marker, KRAS, in stool specimens.
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
Arm A: GE
Patients receive 1000 mg/m^2 gemcitabine hydrochloride IV on days 1, 8, and 15; and 100 mg oral erlotinib hydrochloride on days 1-28. Treatment repeats every 28 days for 2 courses. Patients achieving a complete response (CR) after 2 courses receive 2 additional courses of treatment; patients achieving a partial response (PR) receive retreatment as above. Patients achieving a CR after 4 courses of treatment receive erlotinib hydrochloride until the first disease progression. After the first progression, patients are retreated with gemcitabine hydrochloride and erlotinib hydrochloride until second progression.
干预措施: erlotinib hydrochloride (Drug)
Arm A: GE
Patients receive 1000 mg/m^2 gemcitabine hydrochloride IV on days 1, 8, and 15; and 100 mg oral erlotinib hydrochloride on days 1-28. Treatment repeats every 28 days for 2 courses. Patients achieving a complete response (CR) after 2 courses receive 2 additional courses of treatment; patients achieving a partial response (PR) receive retreatment as above. Patients achieving a CR after 4 courses of treatment receive erlotinib hydrochloride until the first disease progression. After the first progression, patients are retreated with gemcitabine hydrochloride and erlotinib hydrochloride until second progression.
干预措施: gemcitabine hydrochloride (Drug)
Arm B: PGE
Patients receive 1000 mg/m^2 gemcitabine hydrochloride IV on days 1, 8, and 15; 100 mg oral erlotinib hydrochloride on days 1 - 28; and 4.0 mg/kg panitumumab IV on days 1 and 15. Treatment repeats every 28 days for 2 courses. Patients achieving a CR after 2 courses receive 2 additional courses of treatment; patients achieving a PR receive retreatment as above. Patients achieving a CR after 4 courses of treatment receive erlotinib hydrochloride and panitumumab until the first disease progression. After the first progression, patients are retreated with gemcitabine hydrochloride, erlotinib hydrochloride, and panitumumab until second progression.
干预措施: panitumumab (Biological)
Arm B: PGE
Patients receive 1000 mg/m^2 gemcitabine hydrochloride IV on days 1, 8, and 15; 100 mg oral erlotinib hydrochloride on days 1 - 28; and 4.0 mg/kg panitumumab IV on days 1 and 15. Treatment repeats every 28 days for 2 courses. Patients achieving a CR after 2 courses receive 2 additional courses of treatment; patients achieving a PR receive retreatment as above. Patients achieving a CR after 4 courses of treatment receive erlotinib hydrochloride and panitumumab until the first disease progression. After the first progression, patients are retreated with gemcitabine hydrochloride, erlotinib hydrochloride, and panitumumab until second progression.
干预措施: erlotinib hydrochloride (Drug)
Arm B: PGE
Patients receive 1000 mg/m^2 gemcitabine hydrochloride IV on days 1, 8, and 15; 100 mg oral erlotinib hydrochloride on days 1 - 28; and 4.0 mg/kg panitumumab IV on days 1 and 15. Treatment repeats every 28 days for 2 courses. Patients achieving a CR after 2 courses receive 2 additional courses of treatment; patients achieving a PR receive retreatment as above. Patients achieving a CR after 4 courses of treatment receive erlotinib hydrochloride and panitumumab until the first disease progression. After the first progression, patients are retreated with gemcitabine hydrochloride, erlotinib hydrochloride, and panitumumab until second progression.
干预措施: gemcitabine hydrochloride (Drug)
结局指标
主要结局
Overall Survival
时间窗: Up to 2 years
Overall Survival is defined as the time from registration to death due to any cause. The estimate will be done using the Kaplan-Meier method. The primary goal of this trial is to compare the experimental arm (Arm B) to the standard arm (Arm A). The primary analysis will be a comparison of Arm A to Arm B using a one-sided log-rank test between the 2 Kaplan-Meier curves.
次要结局
- Confirmed Response Rate(Up to 2 years)
- Progression-free Survival(Up to 2 years)
- Time to Treatment Failure(Up to 2 years)
- Frequency and Severity of Observed Adverse Effects(Up to 2 years)