WB-DWI for Early Prediction of Therapy Response in Patients With Advanced Metastatic GIST Treated With Regorafenib
Whole Body Diffusion-weighted MRI (WB-DWI) for Early Prediction and Evaluation of Therapy Response in Patients With Advanced Metastatic Gastrointestinal Stromal Tumors (GIST) Treated With Regorafenib.
研究概览
详细说明
Aim of the study
- To assess whole body diffusion-weighted magnetic resonance imaging (WB-DWI) for the assessment and early prediction of response of treatment with regorafenib or placebo in patients with advanced, metastatic gastro-intestinal stromal tumors (GIST)
- Evaluation of pretreatment apparent diffusion coefficient (ADC) and b1000 signal intensity (SI) of GIST visualized on the WB-DWI as predictor of time to progression, determined by progression-free survival (PFS)
- Evaluation of WB-DWI using changes of high b-value SI and ADC early during treatment (2weeks after start of therapy; allowed optimal window 10-14 days) as early predictor of time to progression or patient benefit according to RECIST (stable disease + partial response + complete response)
- Evaluation of WB-DWI for treatment follow-up 3 months after initiation of treatment. Confirmation of prior published pilot study (Dunet V et al, J Nucl Med 2010)
- Comparison of WB-DWI with conventional CT imaging for response assessment
研究类型
注册 (实际的)
联系人和位置
学习地点
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Leuven、比利时、3000
- Radiology Department
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参与标准
资格标准
适合学习的年龄
- 孩子
- 成人
- 年长者
接受健康志愿者
有资格学习的性别
取样方法
研究人群
描述
Inclusion Criteria:
- patients with advanced, metastatic gastro-intestinal stromal tumors treated with regorafenib or placebo
Exclusion Criteria:
- in case of a known contraindication for MRI (eg. pacemaker), the patient will not be admitted to the study
学习计划
研究是如何设计的?
设计细节
- 时间观点:预期
队列和干预
团体/队列 |
干预/治疗 |
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GIST treated with regorafenib/placebo
patients with advanced, metastatic gastro-intestinal stromal tumors treated with regorafenib or placebo
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These studies will be performed on a 3 Tesla (T) MR system.
A major advantage of 3T compared to 1.5T is the improved signal to noise ratio that allows whole-body studies to be faster and without application of external antennas, which greatly improves patient comfort.
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研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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WB-DWI as early predictor for regorafenib treatment response
大体时间:jan 2011-dec 2011
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Primary aim of the study: To assess whole body diffusion-weighted magnetic resonance imaging (WB-DWI) for the assessment and early prediction of response of treatment with regorafenib or placebo in patients with advanced, metastatic gastro-intestinal stromal tumors (GIST) |
jan 2011-dec 2011
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Evaluation WB-DWI parameters in correlation with progression free survival (PFS)
大体时间:jan 2011-dec 2011
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Evaluation of
of GIST visualized on the WB-DWI as predictor of progression free survival (PFS) |
jan 2011-dec 2011
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合作者和调查者
调查人员
- 首席研究员:Vincent Vandecaveye, Prof.Dr.、University Hospital Gasthuisberg, department of Radiology
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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