Computed Tomography (CT) Scans Using CT-On-Rails™ to Pinpoint the Location of the Tumor in Treating Patients With Prostate Cancer
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|ClinicalTrials.gov Identifier: NCT00084526|
Recruitment Status : Completed
First Posted : June 11, 2004
Last Update Posted : February 12, 2010
RATIONALE: New imaging procedures such as CT-on-rails™ may improve the ability to pinpoint the location of the tumor and decrease radiation therapy damage to healthy tissue.
PURPOSE: This phase I/II trial is studying how well computed tomography (CT) scans using CT-on-rails™ work in pinpointing the location of the tumor in patients with prostate cancer.
|Condition or disease||Intervention/treatment||Phase|
|Prostate Cancer||Procedure: computed tomography Procedure: ultrasound imaging||Phase 1 Phase 2|
- Validate the software for CT-on-rails™ by comparing prostate target localization via daily ultrasound vs computed tomography (CT) in patients undergoing radiotherapy for prostate cancer.
- Determine the potential benefit of using fiducials in the prostate of patients undergoing daily CT scans and/or ultrasounds for localization.
- Determine the intra- and inter-radiation treatment setup and target position uncertainties, in terms of isocenter coordinates in space, using both the ultrasound and CT scans compared to the coordinates of the isocenter determined at simulation, in these patients.
OUTLINE: This is a pilot study.
- Phase I: Patients undergo computed tomography (CT) using CT-on-rails™ twice weekly. Patients undergo BAT™ ultrasound daily for prostate localization. Patients undergo concurrent daily radiotherapy off study after imaging. After radiotherapy treatment is complete, patients continue to undergo scanning using CT-on-rails™ twice weekly.
- Phase II: Patients undergo local anesthesia and surgical insertion of gold fiducial markers into the prostate. After 1 week, patients undergo a daily CT scan using CT-on-rails™ and bi-weekly BAT™ ultrasound. Patients undergo daily radiotherapy off study after imaging. After radiotherapy treatment is complete, patients continue to undergo scanning using CT-on-rails™ twice weekly.
PROJECTED ACCRUAL: A total of 40 patients (20 per study phase) will be accrued for this study.
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||40 participants|
|Official Title:||Evaluation of Daily CT Scans Using CT on Rails for Localization in the Treatment of Prostate Cancer|
|Study Start Date :||November 2003|
|Actual Study Completion Date :||February 2007|
- Validity of CT-on-rails software
- Efficacy of fiducials
- Treatment setup and target position uncertainties
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00084526
|United States, Pennsylvania|
|Fox Chase Cancer Center - Philadelphia|
|Philadelphia, Pennsylvania, United States, 19111-2497|
|Principal Investigator:||Steven Feigenberg, MD||Fox Chase Cancer Center|