Ignite Creation Date:
2024-05-05 @ 6:30 PM
Last Modification Date:
2024-10-26 @ 9:34 AM
Study NCT ID:
NCT00499421
Status:
COMPLETED
Last Update Posted:
2023-03-24
First Post:
2007-07-10
Brief Title:
Evaluation of Intraprostatic Fiducial Markers For External Beam Radiation Therapy
Sponsor:
MD Anderson Cancer Center
Organization:
MD Anderson Cancer Center
Study Overview
Official Title:
Evaluation of Intraprostatic Fiducial Markers For Targeting of External Beam Radiation Therapy
Status:
COMPLETED
Status Verified Date:
2023-03
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
The goal of this clinical research study is to evaluate a system for localizing targeting for treatment the prostate for external beam radiation therapy The system will be used to locate the prostate before treatment and to measure movement of the prostate during treatment The data collected with the system will be compared to CT images taken during the course of your radiation therapy treatment Researchers will try to use this information to verify the performance of the system which could lead to improved positioning and tracking of the prostate during treatment
Detailed Description:
The prostate may change position on a day-to-day basis due to differences in positioning muscle tone rectal filling and bladder filling Soft tissue like the prostate is not usually visible with normal x-rays but certain metals like gold are visible Many institutions are using an FDA-approved system fiducial system the one being used in this study which involves implanting small gold markers to locate the prostate on a daily basis This system allows the prostate to be located before treatment which may improve radiation delivery to the prostate and decrease radiation exposure to normal tissue such as the rectum and bladder The ability of this system to provide information on the location of the prostate before treatment should allow for more precise and accurate radiation treatment of prostate cancer
The small implanted gold markers are 3 mm long and 1 mm wide about the size of a grain of rice If you agree to take part in this study 3 markers will be permanently implanted into your prostate using a needle similar to the biopsy needle used to diagnose your cancer
Treatment for prostate cancer during this research study will not be different from the MD Anderson standard of care You will have intensity-modulated radiation therapy IMRT treatment for the prostate cancer performed using the CT-Linac treatment machine ExaCT Varian Medical Systems Palo Alto CA This machine will have the same IMRT capabilities as other treatment machines in the Radiation Oncology Department
During the study the position of the gold markers seen on x-ray will be used to make adjustments to the position of your prostate for your radiation therapy treatment The positions reported by the fiducial system will be recorded and used for daily treatment
Three 3 times per week you will have a CT scan of your prostate The CT scans will be performed just before the delivery of radiation Radiotherapists will assist you onto the treatment table and position it for your treatment The treatment table will then be rotated 180 degrees from the treatment machine and the CT scan of your prostate will be performed After the CT scan which will take about 5-8 minutes the couch will be rotated back to the original position
A trans-abdominal ultrasound of your prostate will also be performed twice per week for the first two weeks and then once a week from then on while you are on study The MD Anderson staff and researchers will analyze the changes in prostate movement during radiation therapy using the scanned CT images and ultrasound images and compare them with positional changes displayed by the fiducial-based system
Targeting of your prostate on a daily basis will be performed using the fiducial-based system This will involve performing a pair of x-rays before your treatment A shift will be made if needed using the implanted prostate markers The position of the seeds after the shift will be routinely verified with another pair of x-rays After alignment has occurred a radiation treatment will then be delivered
This is an investigational study The fiducial-based system is FDA-approved A total of 20 patients will take part in this study All will be enrolled at MD Anderson
The small implanted gold markers are 3 mm long and 1 mm wide about the size of a grain of rice If you agree to take part in this study 3 markers will be permanently implanted into your prostate using a needle similar to the biopsy needle used to diagnose your cancer
Treatment for prostate cancer during this research study will not be different from the MD Anderson standard of care You will have intensity-modulated radiation therapy IMRT treatment for the prostate cancer performed using the CT-Linac treatment machine ExaCT Varian Medical Systems Palo Alto CA This machine will have the same IMRT capabilities as other treatment machines in the Radiation Oncology Department
During the study the position of the gold markers seen on x-ray will be used to make adjustments to the position of your prostate for your radiation therapy treatment The positions reported by the fiducial system will be recorded and used for daily treatment
Three 3 times per week you will have a CT scan of your prostate The CT scans will be performed just before the delivery of radiation Radiotherapists will assist you onto the treatment table and position it for your treatment The treatment table will then be rotated 180 degrees from the treatment machine and the CT scan of your prostate will be performed After the CT scan which will take about 5-8 minutes the couch will be rotated back to the original position
A trans-abdominal ultrasound of your prostate will also be performed twice per week for the first two weeks and then once a week from then on while you are on study The MD Anderson staff and researchers will analyze the changes in prostate movement during radiation therapy using the scanned CT images and ultrasound images and compare them with positional changes displayed by the fiducial-based system
Targeting of your prostate on a daily basis will be performed using the fiducial-based system This will involve performing a pair of x-rays before your treatment A shift will be made if needed using the implanted prostate markers The position of the seeds after the shift will be routinely verified with another pair of x-rays After alignment has occurred a radiation treatment will then be delivered
This is an investigational study The fiducial-based system is FDA-approved A total of 20 patients will take part in this study All will be enrolled at MD Anderson
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None