Perfusion and Diffusion Magnetic Resonance Imaging, and Phosphorylation of Circulation Endothelial Cells to Determine Anti-anogenic Effect of Chemotherapeutic Regimens in Colorectal Liver Metastasis Patients

Study Overview
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Brief Summary
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The purpose of our study is to establish the accuracy of the perfusion MRI parameters and the availability of the VEGFR2 signaling assay using phosphospecific flow cytometry in predicting the response of liver metastasis from colorectal cancer to treatment with antiangiogenic agent.

Detailed Description
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The purpose of our study is to establish the accuracy of the perfusion MRI parameters and the availability of the VEGFR2 signaling assay using phosphospecific flow cytometry in predicting the response of liver metastasis from colorectal cancer to treatment with antiangiogenic agent. IRB approval will be obtained to enroll 60 naïve patients (30 patients who will get antiangiogenic agent (Avastin) combined chemotherapy and 30 patients who will get chemotherapy without antiangiogenic agent) with liver metastasis from colorectal cancer. MRI and blood test (VEGFR2 signaling assay) will be undergoing at three time points in the patients with Avastin chemotherapy; at baseline (pretreatment), 3 days after Avastin alone treatment, 3 days after Avastin combined chemotherapy (about 10 days after initial Avastin alone treatment). MRI and blood test (VEGFR2 signaling assay) will be undergoing at two time points in the patients who will get chemotherapy without antiangiogenic agent; at baseline (pretreatment), 3 days after chemotherapy.

Official Title
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Study of Perfusion and Diffusion Magnetic Resonance Imaging, and Phosphorylation of Circulation Endothelial Cells to Determine Anti-angiogenic Effect in Patients With Colorectal Liver Metastasis in Chemotherapeutic Regimens Including Avastin

Conditions
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Colorectal Cancer

Intervention / Treatment
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* Procedure: DCE MRI


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients who have single or multiple liver metastasis from colorectal cancer Patients willing to undergo the study procedure Patients who are fully informed about the study and have signed the informed consent form 60 patients (30 patients who will get antiangiogenic agent(Avastin) combined chemotherapy and 30 patients who will get chemotherapy without antiangiogenic agent) Exclusion Criteria: Patients (men or women) under 20 years of age Patients who have previously entered this study Patients who have received or will receive any investigational drug 48 hours before injection of the study drug or during study participation Women who are pregnant, lactating or who are of childbearing potential and have not had a negative pregnancy test at baseline visit Patients not eligible to contrast media injection according to product labeling Patients with a contraindication for MRI or CT Patients with impaired renal function (e.g. acute renal failure) or patients on dialysis

Ages Eligible for Study
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Minimum Age: 20 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Diagnostic
Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Standard Chemotherapy with Avastin<br> | Procedure: DCE MRI<br>* MRI and blood test(VEGFR2 signaling assay) will be undergoing at three time points in the patients with Avastin chemotherapy; at baseline (pretreatment), 3 days after Avastin alone treatment, 3 days after Avastin combined chemotherapy (about 10 days after initial Avastin alone treatment). MRI and blood test(VEGFR2 signaling assay) will be undergoing at two time points in the patients who will get chemotherapy without antiangiogenic agent; at baseline (pretreatment), 3 days after chemotherapy.<br>|
| Active Comparator: Standard Chemotherapy only<br> | Procedure: DCE MRI<br>* MRI and blood test(VEGFR2 signaling assay) will be undergoing at three time points in the patients with Avastin chemotherapy; at baseline (pretreatment), 3 days after Avastin alone treatment, 3 days after Avastin combined chemotherapy (about 10 days after initial Avastin alone treatment). MRI and blood test(VEGFR2 signaling assay) will be undergoing at two time points in the patients who will get chemotherapy without antiangiogenic agent; at baseline (pretreatment), 3 days after chemotherapy.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| MR perfusion parameter | MR perfusion parameter(Ktrans, Kep, Ve) | 3 days after administrating avastin | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| diffusion parameter | diffusion parameter(ADC; apparent diffusion coefficient) | 3 days after an anti-cancer medicine |