- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01389050
High Precision RT For Soft-Tissue Sarcoma
October 6, 2022 updated by: University Health Network, Toronto
Use of High Precision Radiotherapy in the Management of Soft-Tissue Sarcomas
This research study aims at defining 1) how retroperitoneal sarcomas change over the course of radiotherapy and 2) how radiotherapy affects your well-being.
While the investigators know that radiotherapy before surgery is safe and effective, the amount of tumor motion and size change during radiotherapy is unknown.
There is also very little information that describes the side-effects of radiotherapy in the treatment of this disease.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
Soft-tissue sarcomas (STS) that arise from the retroperitoneum are rare malignancies that are anatomical located deep within the abdominal area and thus pose challenges to surgical and radiotherapeutic management of the patient.
As a result, the local control and overall survival for patients with retroperitoneal sarcomas (RPS) are worse than STS from the extremities.
Current treatment strategy involves pre-operative radiotherapy followed by surgery.
Use of intensity-modulated radiotherapy (IMRT) in RPS had allowed for more conformal treatments with the aim of sparing normal tissues from high doses of irradiation.
Yet the accuracy and coverage of IMRT depend highly on target motion, and little is known about the motion of RPS during the course of radiotherapy.
As well, RPS are commonly in close proximity to sensitive organs for which the long-term toxicity and effect on quality of life secondary to radiation is unknown.
The current study seeks to evaluate the extent of tumor motion during radiotherapy and the impact of radiotherapy to patient toxicity and quality of life.
At the conclusion of this study, our results will hopefully identify the optimum PTV, the importance of different normal tissues and their dose-volume constraints, the role of image guidance, and the potential for dose escalation in the treatment of RPS.
Study Type
Interventional
Enrollment (Actual)
26
Phase
- Phase 2
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
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Ontario
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Toronto, Ontario, Canada, M5G 2M9
- Princess Margaret Hospital
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Pathologically (histologically or cytologically) proven diagnosis of sarcoma (except for GIST, Ewing's sarcoma and rhabdomyosarcoma) within the retroperitoneum. These include patients with locally recurrent disease
- Planned to receive pre-operative radiotherapy
- Will undergo a planning CT
- Karnofsky Performance Status of ≥ 70 within 28 days prior to study entry
- No systemic chemotherapy given prior to pre-operative radiotherapy
- Able to provide written, informed consent
- Women of childbearing potential and men who are sexually active must practice adequate contraception.
Exclusion Criteria:
- Tumor pathology of GIST, Ewing's sarcoma or rhabdomyosarcoma
- Metastatic disease to the retroperitoneum from a primary sarcoma not originating from the retroperitoneum
- Systemic chemotherapy given prior to pre-operative radiotherapy.
- Intent on giving chemotherapy ≤ 12 months from the completion of radiotherapy
- Inability to undergo a 4D-CT simulation
- KPS < 70
- Unable to provide informed consent
- Pregnant women
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
No Intervention: Follow-up
Data from these patients will be added to retrospectively gathered data from the PMH radiotherapy data bank (approximately 50 patients).
The data collected will be analyzed using descriptive statistics.
|
|
Experimental: Prospective
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Radiotherapy for the treatment of retroperitoneal sarcoma.
IMRT will be 50.4
Gy given in 28 fractions.
Other Names:
Images and information from the daily CT will be used for the repositioning of the patient prior to their treatments as per standard procedures.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
To determine the extent of inter-fractional and intra-fractional movement of the GTV during radiotherapy treatments.
Time Frame: 3 years
|
To quantify and describe the movement of the tumor during and between radiotherapy treatments using imagings acquired during the course of radiotherapy planning and treatments.
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3 years
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To assess the acute and long-term toxicity of pre-operative radiotherapy as a function of the dose given to normal tissues and its impact on patient quality of life.
Time Frame: 10 years
|
To describe the effect of radiotherapy to the patient by measuring the acute and long-term side-effects of radiation therapy.
|
10 years
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Describe variations in the volume and shape of the GTV over the course of the treatment and need for adaptive therapy.
Time Frame: 3 years
|
To measure and better define the response of the tumor to radiotherapy during treatments.
|
3 years
|
Correlate the pattern of local recurrence with the dose of radiation delivered accounting for motions and volume changes of target structures.
Time Frame: 10 years
|
To determine whether there is a pattern of local relapse with the actual dose of radiation delivered to the tumor environment when tumor volumetric and positional changes are taken into account.
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10 years
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Investigators
- Principal Investigator: Charles Catton, MD, Princess Margaret Hospital, Canada
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
June 1, 2011
Primary Completion (Actual)
January 6, 2022
Study Completion (Actual)
January 6, 2022
Study Registration Dates
First Submitted
June 30, 2011
First Submitted That Met QC Criteria
July 5, 2011
First Posted (Estimate)
July 7, 2011
Study Record Updates
Last Update Posted (Actual)
October 7, 2022
Last Update Submitted That Met QC Criteria
October 6, 2022
Last Verified
October 1, 2022
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- UHN REB 10-0854-CE
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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