Studying Repeated DCE-MRI and DWI in Patients Diagnosed With Prostate Cancer (A6701 QIBA)
RATIONALE: Diagnostic procedures, such as dynamic contrast-enhanced magnetic resonance imaging or DCE-MRI and diffusion-weighted imaging or DWI, may provide images of prostate cancer or any cancer that remains after biopsy.
PURPOSE: This trial studies repeated DCE-MRI and DWI in patients diagnosed with prostate cancer.
|Study Design:||Endpoint Classification: Bio-equivalence Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
|Official Title:||Repeatability Assessment of Quantitative DCE-MRI and DWI: A Multicenter Study of Functional Imaging Standardization in the Prostate|
- Repeatability assessment of DCE-MRI metrics Ktrans and blood-normalized initial area under the gadolinium curve (IAUGC90bn) and the DWI metric D(t) [ Time Frame: 2 to 14 Days ] [ Designated as safety issue: No ]
- Test-retest performance, assessed by the RC of Ktrans, IAUGC90bn, and D(t), and measured by median pixel values of the prostate tumor [ Time Frame: 2 to 14 Days ] [ Designated as safety issue: No ]
- Reader effect on the RC of DCE-MRI and DWI metrics for whole prostate and tumor nodule target lesion [ Time Frame: 2 to 14 Days ] [ Designated as safety issue: No ]
- Comparison between T1-dependent or T1-independent methods for gadolinium quantification produce differing values for the RC for Ktrans [ Time Frame: 2 to 14 Days ] [ Designated as safety issue: No ]
|Study Start Date:||August 2012|
|Estimated Primary Completion Date:||January 2015 (Final data collection date for primary outcome measure)|
Experimental: Repeatability Assessment
Gadolinium motexafin gadolinium All participants will undergo two consecutive DCE-MRI and DWI scans per same imaging parameters and subsequent comparison for repeatability.
Other: motexafin gadolinium
Other Name: Gadolinium
- Determine the test-retest performance, assessed by the repeatability coefficient [RC] of K^trans and gadolinium curve (IAUGC90^bn) and measured by median pixel values of the whole prostate.
- Determine the test-retest performance, assessed by the RC of diffusion-weighted imaging (DWI) metrics D(t) and measured by median pixel values of the whole prostate.
- Determine the test-retest performance, assessed by RC of K^trans, IAUGC90^bn, and D(t), and measured by median pixel values of the dominant prostate tumor.
- Determine the effect of reader on the RC of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) and DWI metrics for whole prostate and tumor nodule target lesion.
- Determine whether T1-dependent or T1-independent methods for gadolinium quantification in DCE-MRI studies produce differing values for the RC for K^trans and IAUGC90^bn.
- Explore the correlation between DCE-MRI and DWI metrics for both whole prostate and dominant tumor nodule as target lesions. (Exploratory)
- Determine whether the "coffee break" approach toward test-retest analysis of quantitative DWI provides a reasonable estimate of the RC of D(t)of the whole prostate, using as the gold standard the RC of D(t) obtained between the two separate MRI visits. (Exploratory)
OUTLINE: This is a multicenter study. Patients are stratified according to MRI vendor used (Siemens vs GE vs Philips).
Patients receive gadolinium-based contrast IV and undergo DCE-MRI* and DWI 2 imaging at 2-14 days apart prior to treatment initiation. A central reader evaluation of the 2 successive scans is then conducted.
NOTE: *At the discretion of the participating sites, the initial MRI visit (MRI SCAN 1) may be supplemented with endorectal-coil imaging per institutional norms.
|United States, Pennsylvania|
|Hospital of the University of Pennsylvania||Recruiting|
|Philadelphia, Pennsylvania, United States, 19104|
|Contact: Mark Rosen, MD, PhD 215-662-3107|
|Principal Investigator: Mark Rosen, MD, PhD|
|Principal Investigator:||Mark A. Rosen||Abramson Cancer Center of the University of Pennsylvania|