Visualization of Anti-angiogenic Effects With Perfusion Computed Tomography (CTP) (AVA-CTP)
2016年12月15日 更新者：Patrick Veit-Haibach
Visualization of Anti-angiogenic Effects With Perfusion Computed Tomography (CTP) in mCRC Patients Treated With First-line Bevacizumab
The primary objective of this study is to investigate the anti-angiogenic effect of bevacizumab measured by CTP as a predictive marker for efficacy measured by progression-free survival (PFS) in mCRC patients under first-line bevacizumab-containing, fluoropyrimidine-based chemotherapy
研究概览
详细说明
So far, CTP has provided non-invasive imaging of tumor biological response to anti-angiogenic and vascular targeting agents in a number of clinical trials with increasing clinical application. CTP can be examined with a variety of commercially available CE-certified CT scanners and imaging post-processing is possible with commercially available CE-certified software from different vendors, too. In several studies, anti-angiogenic effects have been detected with CTP but further evidence for its clinical validation has to be proven in clinical trials.
Changes in tumor vasculature measured by CTP will be correlated to the clinical efficacy parameters progression-free survival, overall survival and response rate, thus identifying a group of patients who profit most from the anti-angiogenic treatment.
研究类型
介入性
注册 (预期的)
50
阶段
- 不适用
联系人和位置
本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。
学习地点
-
-
GR
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Chur、GR、瑞士、7000
- Kantonsspital Graubunden
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LU
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Luzern、LU、瑞士、6000
- Luzerner Kantonsspital
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SG
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St. Gallen、SG、瑞士、9007
- Kantonsspital St. Gallen
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ZH
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Winterthur、ZH、瑞士、8401
- Kantonsspital Winterthur
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Zürich、ZH、瑞士、8091
- Universitätsspital Zürich
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参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
18年 及以上 (成人、年长者)
接受健康志愿者
不
有资格学习的性别
全部
描述
Inclusion Criteria:
- Age ≥ 18 years, male or female
- Signed written informed consent
- Patients with histologically confirmed diagnosis of colorectal cancer with hepatic metastases who are candidates for systemic treatment.
Confirmation of metastatic liver disease within one month prior to inclusion in one of the following radiological procedures:
- Contrast-enhanced spiral computed tomography showing at least one liver nodule ≥ 20 mm in longest diameter according to RECIST 1.1 criteria
- MR imaging of the liver with liver lesions suspicious for metastases
- PET computed tomography (PET/CT) with liver lesions suspicious for metastases
- Patient is eligible and designated for treatment with standard-of-care first-line bevacizumab-containing, fluoropyrimidine-based chemotherapy.
- ECOG performance status ≤ 2 (see appendix)
Exclusion Criteria:
- Inability or unwillingness to comply with the participation requirements
- History of untreated hyperthyreosis
- History of intolerance of or allergy to iodine contrast media according to CTCAE V4.03
- Calculated creatinine clearance < 45 ml/min
- For fertile women: positive urine pregnancy test or lactation.
- Known or suspected non-compliance, drug or alcohol abuse
- Life expectancy of less than 3 months
- Participation in another interventional trial with an investigational medicinal product (IMP) and within 30 days prior to screening
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
- 主要用途：诊断
- 分配：不适用
- 介入模型：单组作业
- 屏蔽：单身的
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
其他：Perfusion-computed tomography (CTP)
Patients undergo a total of four perfusion-computed tomographies from baseline to progression of disease.
|
Contrast-enhanced computed tomography of liver metastases
其他名称：
|
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 |
|---|---|---|
|
CTP as predictive marker for efficacy measured by progression-free survival
大体时间：one year
|
Predictive power of decrease in tumor vasculature on the clinical outcome in bevacizumab-based chemotherapy measured by progression-free survival (PFS).
Decrease in tumor vasculature is measured by blood flow in CTP 3 compared to CTP 1 (baseline)
|
one year
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
CTP as predictive marker for efficacy measured by progression-free survival
大体时间：one year
|
Predictive power of decrease in tumor vasculature on the clinical outcome in bevacizumab-based chemotherapy measured by progression-free survival (PFS).
Decrease in tumor vasculature is measured by blood flow, blood volume, mean transit time and permeability surface-area product in CTP
|
one year
|
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CTP as predictive marker for efficacy measured by overall survival
大体时间：four years
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Predictive power of decrease in tumor vasculature measured by CTP on the clinical outcome in bevacizumab-based chemotherapy measured by overall survival (OS)
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four years
|
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Tumor vasculature at progression
大体时间：one year
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Tumor vasculature measured by blood flow, blood volume, mean transit time and permeability surface-area product in CTP at the time of confirmed progression
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one year
|
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Subgroup analyses according to the RAS mutation status, BRAF mutation status and VEGF-A level
大体时间：one year
|
Predictive power of RAS-mutation status, BRAF-mutation status and VEGF-A level on the clinical outcome in bevacizumab-based chemotherapy measured by progression-free survival (PFS)
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one year
|
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Local and distant recurrences
大体时间：one year
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Rates of local and distant recurrences according to RECIST 1.1 criteria
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one year
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合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
合作者
调查人员
- 首席研究员：Patrick Veit-Haibach, MD、University Hospital Zurich, Diagnostic and Interventional Radiology
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始
2015年7月1日
初级完成 (实际的)
2016年12月1日
研究完成 (预期的)
2017年4月1日
研究注册日期
首次提交
2015年4月29日
首先提交符合 QC 标准的
2015年7月27日
首次发布 (估计)
2015年7月30日
研究记录更新
最后更新发布 (估计)
2016年12月16日
上次提交的符合 QC 标准的更新
2016年12月15日
最后验证
2016年12月1日
更多信息
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.