Predictive Value of 99mTc- Albumin Spheres Before 90Y- SIR Therapy (EXPLOSIVE)
2014年9月3日 更新者：Jens Ricke、University of Magdeburg
Exploratory Study to Assess the Predictive Value of 99mTc-labeled Albumin Spheres for the Intrahepatic Distribution of 90Y SIR Spheres in Patients With Liver Metastases of Colorectal Tumors
The purpose of this study is to assess the predictive value of 99mTechnetium (Tc)- labeled albumin in macroaggregates (MAA) and in microspheres (B20) injected into the common hepatic artery for the distribution of 90Yttrium- Selective Internal Radiotherapy (SIRT)-spheres (SIR- spheres).
研究概览
详细说明
Patients with metastases of colorectal tumors will be included into this study provided that they are scheduled for 90Y SIR spheres therapy for clinical reasons.
Before 90Y SIR spheres therapy, patients will receive a diagnostic examination with injection of MAA (group A) or B20 (group B) into the common hepatic artery to rule out a relevant shunt volume to the lung or other extra-hepatic locations (e.g., stomach) as recommended by the manufacturer.
After the diagnostic scan, therapy with SIR- spheres will be conducted in 2 separate sessions with selective injection of 90Y labeled SIR spheres into the right and left hepatic artery at two separate occasions (routine procedure at the University of Magdeburg, Germany).
In addition, therapeutic sessions will include the selective injection of MAA or B20 into the right / left hepatic artery according to a predefined plan (either alone or as a mixture with the SIR spheres).The intra-hepatic distribution of 90Y labeled SIR spheres will be assessed using "Bremsstrahlen"- Single- Photon- Emission- Computed- Tomography (SPECT)- imaging, the distribution of MAA and B20 will be assessed using SPECT imaging.
研究类型
介入性
注册 (实际的)
24
阶段
- 阶段2
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
-
-
Sachsen-Anhalt
-
Magdeburg、Sachsen-Anhalt、德国、39120
- Clinic for Radiology and Nuclear Medicine
-
-
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 至 85年 (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: between 18 and 85 years
- if female, postmenopausal or surgically sterilized
- liver metastases of a colorectal tumor in both liver lobes
- scheduled for therapy with 90Y SIR spheres for clinical reasons
- life expectancy longer than 6 months
- willing and able to undergo all study procedures
- having voluntarily provided written and fully informed consent
Exclusion Criteria:
- presenting with a contraindication to 90Y SIR spheres therapy
- variants of the arterial hepatic blood supply which interfere with the objectives of this study (e.g., variants of Michel)
- women who are pregnant, lactating or who are of childbearing potential
- patients being clinically unstable
- uncooperative, in the investigator's opinion
- any contraindication to SIRT treatment
- any concomitant chemotherapy
- shunt to the lung >10%
- shunt to any extrahepatic organ (except the lung)
- having been previously enrolled in this study
- participating in another prospective clinical trial
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：随机化
- 介入模型：并行分配
- 屏蔽：单身的
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
实验性的：99mTc- labeled albumin macroaggregates (MAA)
Diagnostic MAA- SPECT- imaging.
|
Intraarterial application of 5ml containing 500.000 particles with an activity of 150MBq.
其他名称：
|
|
实验性的：99mTc- labeled albumin microspheres (B20)
Diagnostic B20- SPECT- imaging.
|
Intraarterial application of 5ml containing 150.000 particles with an activity of 150 MBq.
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 |
|---|---|---|
|
Percentage of liver volume for which the accumulation of SIR spheres was correctly predicted by the preceding Tc-99m MAA scintigraphy
大体时间：Tc-99m MAA scan one day prior to radioembolisation; Bremsstahlen-Scan after SIR spheres therapy
|
The percentage in liver volume for which the accumulation of SIR spheres during therapy was correctly predicted by Tc-99m MAA will be given by a blinded reader in categories by visual assessment (0-10%, >10-20%, >20-30%, …, >90-100%) (only patients who received Tc-99m MAA during evaluation.)
|
Tc-99m MAA scan one day prior to radioembolisation; Bremsstahlen-Scan after SIR spheres therapy
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Percentage of liver volume for which the accumulation of SIR spheres was correctly predicted by the preceding Tc-99m B20 scintigraphy
大体时间：Tc-99m B20 scan one day prior to radioembolisation; Bremsstahlen-Scan after SIR spheres therapy
|
The percentage in liver volume for which the accumulation of SIR spheres during therapy was correctly predicted by B20 will be given by a blinded reader in categories by visual assessment (0-10%, >10-20%, >20-30%, …, >90-100%) (only patients who received Tc-99m B20 during evaluation.)
|
Tc-99m B20 scan one day prior to radioembolisation; Bremsstahlen-Scan after SIR spheres therapy
|
|
Pharmacokinetic parameters of the intrahepatic distribution of MAA and B20.
大体时间：One day prior to SIRT
|
elimination half-life calculated in [min] from the decay-corrected radioactivity concentration measured over the liver; % radioactivity trapped in the liver at the individual measuring time points (of total radioactivity measured over the liver in the first scan); percent lung shunt (percentage of liver activity leaking to the lung at the individual time points)
|
One day prior to SIRT
|
|
Adverse events as elicited upon indirect questioning.
大体时间：At any visit.
|
Number of patients with adverse events (AEs), number of AEs per patient; descriptive listing of all AEs
|
At any visit.
|
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：Jens Ricke, Prof. Dr.、University of Magdeburg, Faculty for Medicine
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
2010年7月1日
初级完成 (实际的)
2011年7月1日
研究完成 (实际的)
2013年8月1日
研究注册日期
首次提交
2010年7月23日
首先提交符合 QC 标准的
2010年8月20日
首次发布 (估计)
2010年8月23日
研究记录更新
最后更新发布 (估计)
2014年9月4日
上次提交的符合 QC 标准的更新
2014年9月3日
最后验证
2014年9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.