A Clinical Study for the Evaluation of Genetic Polymorphisms of Drug Transporters and Orphan Nuclear Receptors on the Pharmacokinetics and Treatment Effects of Irinotecan in Patients With Colorectal and Gastric Cancer
试验速览
- 阶段
- 不适用
- 入组人数
- 100
- 试验地点
- 2
- 主要终点
- SLCO1B1 and PXR genotypes and maximal response rate
研究概览
简要总结
From 100 colorectal cancer patients being treated with FOLFIRI regimen or any kind of irinotecan containing regimen, blood samples for irinotecan and its metabolites levels and genotypes related with its metabolism will be collected. The association of their levels and genotypes and treatment effects will be evaluated.
详细描述
For the genotype-PD association, 50 colorectal cancer patients treated with FOLFIRI will be enrolled and studied. 50 additional colorectal patients treated with any kind of irinotecan containing regimen will be enrolled and including the 50 patients for the genotype-PD association, a total of 100 patients will be evaluated for the genotype-PK association.
Blood samples for PK analysis will be collected from patients with colorectal cancer during 1st treatment cycle of irinotecan and 2nd, 3rd infusion. During the 1st treatment cycle, blood will be drawn 0 h (before irinotecan infusion), 0.75 h, 1.5 h and each at time ranges of 2~8 h, 8~16 h, 24~32h and 48~52 hours after the start of irinotecan infusion over 90 min and additional blood will be collected 48~52 hours after the respective 2nd and 3rd infusion.
For 50 colorectal cancer patient treated with FOLFIRI regimen, responses to the treatment will be assessed every 3 cycles. All assessments will be repeated at the end of trial therapy.
The RECIST criteria for measurable disease will be followed and toxicity will be evaluated according to NCI common toxicity criteria version 3.0.
Time to disease progression will be calculated from the date of study entry to the first objective documentation of progressive disease. Response duration will be measured from the date a patient first fulfills the CR or PR criteria to the first date of objective documentation of disease progression.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Basic Science
- 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
- •Histologically or cytologically diagnosed unresectable or metastatic colorectal cancer
- •Performance status of 0, 1 and 2 on the ECOG criteria
- •Disease status must be that of measurable disease as defined by RECIST criteria (For genotype-PD study only) Only non-target lesions are allowed for PK study
- •No previous chemotherapy, radiotherapy on the target lesion, immunotherapy; adjuvant chemotherapy with fluoropyrimidines completed at least 6 months ago is allowed (For genotype-PD study only) Previously treated patients are allowed for PK study
- •Life expectancy of more than 3 months (For genotype-PD study only)
- •Adequate major organ functions
- •Compliant patient who can be followed-up adequately
- •Informed consent
排除标准
- •Active or uncontrolled infection
- •Pregnant or breast-feeding women
- •Patients with systemic disease, especially cardiovascular disease, who cannot tolerate systemic chemotherapy
- •Patients with brain metastasis (For genotype-PD study only)
- •Patients treated with radiotherapy within 2 weeks (For genotype-PD study only)
结局指标
主要结局
SLCO1B1 and PXR genotypes and maximal response rate
时间窗: Before & during treatment
SLCO1B1 and PXR genotypes and pharmacokinetics of SN-38
时间窗: Before and 1st cycle
次要结局
- SLCO1B1 and PXR genotypes and response duration, time to progression and overall survival