The objectives for this study include: * Testing a unique way of imaging people with colorectal cancer and other cancers that has spread to the liver using magnetic resonance imaging (MRI); * Seeing if the MRI process can be used across multiple imaging platforms; * Determining whether the results of the imaging can be reproduced; * Reviewing how MRI results relate to cancer response to combination therapy and to clinical endpoints.
This study will investigate the use of projection reconstruction dynamic contrast-enhanced MRI (DCE-MRI) as a surrogate marker of tumor vascularity in patients treated with the antiangiogenic agent bevacizumab. DCE-MRI is gaining popularity as a method to assess the functional response of tumors to agents targeting the vascular endothelial growth factor (VGEF) pathways. DCE-MRI measurements have been proposed as a non-invasive measure of both tumor biologic activity and (in the case of antivascular therapy) early response to treatment. A number of phase I and II studies demonstrate the ability for DCE-MRI to detect perfusion changes associated with tumor biologic response to vascularly targeted agents. It has been suggested that pre-treatment DCE-MRI might identify tumors with high intrinsic perfusion and that these tumors will be more likely to respond to antivascular-based therapies. However, the current use of DCE-MRI in clinical settings is challenging. Trade-offs between spatial coverage, time, and spatial resolution make this technique difficult to implement in human studies and may limit its reliability. The use of projection reconstruction-based acquisition can mitigate the need for these trade-offs and can simultaneously provide high temporal and spatial resolution data for DCE-MRI analysis.
Study Type
OBSERVATIONAL
Enrollment
6
Participants will receive two (2) dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) prior to chemotherapy and one (1) DCE-MRI after the first cycle of chemotherapy. Participants will be followed for up to 2 years after the initiation of chemotherapy or until disease progression.
Penn State University Hershey Medical Center
Hershey, Pennsylvania, United States
Fox Chase Cancer Center
Philadelphia, Pennsylvania, United States
Hospital of the University of Pennsylvania
Philadelphia, Pennsylvania, United States
Thomas Jefferson University Hospital
Philadelphia, Pennsylvania, United States
To determine the reproducibility of DCE-MRI measures of tumor Ktrans, kep, and ve for colorectal metastases to the liver (Arm A) and any cancer metastatic to the liver (Arm B), using projection interleaved back-projection DCE-MRI techniques.
Time frame: Three (3) DCE-MRI scans (two separate pre-treatment and one post-treatment DCE-MRI exams [post-treatment defined as after the first cycle of chemotherapy with bevacizumab])
To determine the alteration in tumor vascularity (assessed by percentage change in tumor Ktrans) in Arm A participants with metastatic colorectal cancer to the liver after one cycle of chemotherapy including bevacizumab compared to baseline Ktrans value.
Time frame: Two (2) DCE-MRI scans (baseline pre-treatment and post-treatment DCE-MRI exams [post-treatment defined as after the first cycle of chemotherapy with bevacizumab])
To determine the relationship between initial tumor vascularity (absolute tumor Ktrans) and change in tumor vascularity (percentage change in tumor Ktrans after one cycle of chemotherapy) and PFS in participants in Arm A.
Time frame: Two (2) DCE-MRI scans (baseline pre-treatment and post-treatment DCE-MRI exams [post-treatment defined as after the first cycle of chemotherapy with bevacizumab]) with follow-up
To evaluate the perfusional difference between the dominant tumor and the global tumor burden (Arms A and B).
Time frame: Three (3) DCE-MRI scans (two separate pre-treatment and one post-treatment DCE-MRI exams [post-treatment defined as after the first cycle of chemotherapy with bevacizumab])
To evaluate the feasibility of exporting back-projection DCE-MRI imaging across multiple MRI scanner vendor platforms for use in a multi-site chemotherapy trial.
Time frame: Three (3) DCE-MRI scans (two separate pre-treatment and one post-treatment DCE-MRI exams [post-treatment defined as after the first cycle of chemotherapy with bevacizumab])
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University of Pittsburgh Medical Center
Pittsburgh, Pennsylvania, United States
To determine the functional status as a predictor of response or disease-free survival in participants in Arm A.
Time frame: Three (3) DCE-MRI scans (two separate pre-treatment and one post-treatment DCE-MRI exams [post-treatment defined as after the first cycle of chemotherapy with bevacizumab]) with follow-up for response and disease-free survival