Sunitinib for Metastatic Renal Cell Cancer With Imaging Biomarker Assessments for the Early Prediction of Tumor Response
|Study Design:||Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
|Official Title:||Sunitinib for Metastatic Renal Cell Cancer With Imaging Biomarker Assessments for the Early Prediction of Tumor Response|
- Metabolic Response [ Time Frame: 4 weeks ]Number of patients achieving metabolic response (at least Partial Response) assessed with follow-up FDG-PET scans compared to baseline using the European Organization for Research and Treatment of Cancer (EORTC) response criteria based on the change in the follow-up average maximum standardized uptake value (SUVmax) relative to baseline as follows: Partial Response (PR) ≥ 25% decrease in SUVmax; Progressive Disease (PD) ≥ 25% increase in SUVmax; Stable Disease (SD) < 25% change in SUVmax.
- Proliferative Response [ Time Frame: 4 weeks ]Number of patients achieving proliferative response (at least Partial Response) assessed with follow-up FLT-PET scans compared to baseline using the European Organization for Research and Treatment of Cancer (EORTC) response criteria based on the change in the follow-up average SUVmax relative to baseline as follows: Partial Response (PR) ≥ 25% decrease in SUVmax; Progressive Disease (PD) ≥ 25% increase in SUVmax; Stable Disease (SD) < 25% change in SUVmax.
- Overall Survival [ Time Frame: 2399 days ]The length of time from the start of treatment for a disease that patients are still alive; no time limit was imposed on data collection
|Study Start Date:||September 2007|
|Study Completion Date:||September 2014|
|Primary Completion Date:||September 2014 (Final data collection date for primary outcome measure)|
Imaging studies with complete analyses will be provided on all patients prior to institution of sunitinib therapy as well as after therapy at various early time points (1 week in 5 patients, 2 weeks in 5 patients, 3 weeks in 5 patients or 4 weeks in 5 patients) after institution of sunitinib therapy at 37.5 mg orally/day.
Imaging studies include:
FDG-PET scans FLT-PET scans H215O-PET scans DCE-MRI scans
Other Name: Sutent®
Our proposed clinical study will:
- Provide an exploratory yet reliable and validated cadre of imaging studies done in patients that yield a mechanistically-based understanding of: 1) predictive assays for clinical benefit from standard sunitinib therapy, 2) measurement of efficacy during standard sunitinib therapy, and 3) prognosis or other long term outcomes.
- Reveal a more detailed understanding of the in vivo mechanism of standard sunitinib therapy in patient tumors, mechanistic information on why particular functional imaging patterns are seen in treated patients, and clinical measures that are useful to physicians for decision making and for explanation of efficacy or outcomes for patients.
- Predict which patients may benefit from standard sunitinib therapy.
- Determine early in the course of treatment whether standard sunitinib therapy will be efficacious and whether this can be used in future comparable patients.
- Show the outcome of patients with standard sunitinib treatment.
- Shed further information on the biological mechanism for the rapid decrease of FDG uptake on FDG-PET imaging with standard sunitinib treatment.
It is our hypothesis that a set of biologically relevant imaging biomarkers (tumor metabolism assessed with dynamic FDG-PET; tumor proliferation assessed with dynamic FLT-PET; tumor blood flow assessed with H215O-PET and DCE MRI); tumor perfusion assessed with DCE-MRI; and tumor blood volume/volume of distribution assessed with H215O-PET and DCE MRI) in the same patient at baseline and then in the same patient at one of the post therapy time points (1 week, 2 weeks, 3 weeks or 4 weeks) will provide either alone or more likely in combination information that will predict which patients will most likely benefit from standard sunitinib therapy and that an early response assessment is possible that is predictive of a durable response to the therapeutic drug.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00694096
|United States, Utah|
|Huntsman Cancer Institute|
|Salt Lake City, Utah, United States, 84112|
|Principal Investigator:||John M Hoffman, MD||Huntsman Cancer Institute|