- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01589939
Reduced Planning Target Volume (PTV) Margins for the Treatment of Prostate Cancer Using the Calypso 4D Localization System (PTV)
Reduced PTV Margins for the Treatment of Prostate Cancer With IMRT Using Real-Time, State-of-the-Art Motion Tracking With the Calypso 4D Localization System: A Feasibility Study
Study Overview
Status
Conditions
Detailed Description
This study will seek to establish the clinical feasibility of a novel real-time localization and tracking system for use of reduced PTV margins during intensity modulated radiation therapy (IMRT), which will allow treatment of smaller volumes of normal tissue during radiation therapy. Such a reduction in the PTV margins and the exposure of healthy tissue during treatment may allow for several future improvements in prostate radiotherapy including:
- decreased acute and chronic adverse effects with similar local tumor control
- dose escalation to achieve higher cure rates with similar adverse effects to standard dose treatment
- hypofractionation to shorten the time of, and lower the expense of, treatment without increased adverse effects.
Study Type
Enrollment (Anticipated)
Contacts and Locations
Study Locations
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Washington
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Tacoma, Washington, United States, 98431
- Madigan Healthcare System
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Histologically confirmed adenocarcinoma of the prostate
- Low Risk: T1a, T1b, T1c, T2a; Gleason Score less than 7, PSA less than or equal to 10
- Intermediate Risk: T2b, T2c; Gleason Score less than or equal to 7, PSA less than or equal to 15
- Ability to comply with study schedule
- Age 40 or older
- Zubrod PS 0 or 1
- Signed informed consent
Exclusion Criteria:
- Node positive or metastatic prostate cancer
- Prior treatment of prostate cancer with surgery, chemotherapy, cryotherapy or brachytherapy
- History of prior pelvic radiotherapy
- History of abdominoperineal resection
- History of HIV infection
- History of chronic prostatitis or chronic cystitis
- History of bleeding disorder or any active anticoagulation (excluding ASA)
- PT or INR outside normal range for institution
- Active implanted devices such as cardiac pacemakers and automatic defibrillators.
- Prosthetic implants in the pelvic region that contain metal or conductive materials (eg., an artificial hip).
- Patients with maximum anterior-posterior separation through the torso minus the height of the center of the prostate greater than 17 cm (technical reason for Calypso System, see appendix 8).
- Prior history of androgen deprivation therapy has been deleted and these patients are allowed on study.
Study Plan
How is the study designed?
Design Details
- Observational Models: Cohort
- Time Perspectives: Prospective
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Radiation therapy with reduced treatment margins can be adopted as feasible for routine clinical use
Time Frame: Approximately 8.5 weeks (43 fractions per pt.)
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During each radiation treatment fraction, therapists will record set up time, treatment time, total time and number of treatment interventions (repositioning/pausing) as well as the duration of the intervention caused by organ/target motion beyond planning target volume (PTV) margin using real time localization and tracking.
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Approximately 8.5 weeks (43 fractions per pt.)
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Analyze dosimetric characteristics of treatment planning
Time Frame: usually within the first 2 weeks after beacon placement (done at simulation CT)
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Standard methods vs. reduced planning target volume expansions will be analyzed:
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usually within the first 2 weeks after beacon placement (done at simulation CT)
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Assess incidence of acute bladder and rectal toxicity
Time Frame: approximately 25 months (assessed prior to beacons are placed and then throughout treatment and follow-up)
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toxicity is based on the RTOG/NCI CTC and EPIC quality of life survey.
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approximately 25 months (assessed prior to beacons are placed and then throughout treatment and follow-up)
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Collaborators and Investigators
Collaborators
Study record dates
Study Major Dates
Study Start
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- W81XWH-08-2-0174, A-15214.1a
- 207111 (Other Identifier: Madigan Army IRB)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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