- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04125095
Estimating Setup Uncertainty in Pediatric Proton Therapy Using Volumetric Images
This research study establishes a repository for imaging data generated during image-guided proton therapy for various pediatric cancers. The data facilitate the estimation of patient positioning uncertainty, the comparison of image guidance methods, and the identification of factors contributing to large setup deviations to improve the accuracy of radiation therapy in the future.
Primary Objective
To establish a repository of imaging data acquired during the radiation therapy course with linked radiation treatment plans and clinical information from pediatric patients of all cancer types receiving image-guided proton therapy to facilitate secondary and exploratory objectives.
Secondary Objectives
- To estimate distributions of patient setup uncertainty measured with daily pre- treatment volumetric cone beam computed tomography (CBCT) scans.
- To compare patient setup corrections derived based on 2D (orthogonal radiographs) and 3D (volumetric CBCT scans) image guidance.
- To assess residual setup errors after CBCT-guided correction based on post- correction repeat CBCT.
- To estimate distributions and time trends of patient motion during a radiation therapy course based on weekly pre- and post-treatment CBCT scans.
- To identify clinical and treatment factors that contribute to significantly large setup uncertainty and intra-fractional movement in pediatric patients.
Exploratory Objectives
- To determine variation in patient anatomy using images acquired during the treatment course.
- To evaluate the usefulness of on-treatment CBCT scans for detecting daily changes in proton ranges, evaluating deviations from planned tumor dosimetry, and triggering adaptive replanning.
Study Overview
Status
Conditions
Detailed Description
Study Type
Enrollment (Estimated)
Contacts and Locations
Study Contact
- Name: Chia-ho Hua, PhD
- Phone Number: 866-278-5833
- Email: referralinfo@stjude.org
Study Locations
-
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Tennessee
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Memphis, Tennessee, United States, 38105
- Recruiting
- St. Jude Children's Research Hospital
-
Contact:
- Chia-ho Hua, PhD
- Phone Number: 866-278-5833
- Email: referralinfo@stjude.org
-
Principal Investigator:
- Chia-ho Hua, PhD
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
Sampling Method
Study Population
Description
Inclusion Criteria:
- Patient will receive proton therapy of ≥5 daily fractions.
- Research participant or legal guardian/representative gives written informed consent.
Exclusion Criteria:
- Unwillingness of research participant or legal guardian/representative to give written informed consent.
- If patients previously enrolled in this study and completed protocol-specified imaging scans but return for re-irradiation, they will not be eligible to participate again.
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
---|
Head Scans
Includes patients receiving proton therapy for tumors in the brain, skull, and head and neck region.
The same patient could potentially contribute to both cohorts if he/she receives radiation to both head and body sites.
|
Body Scans
Includes proton irradiation to shoulders, thorax, abdomen, pelvis, spine (thoracic or lumbar), extremities, and other body sites.
The same patient could potentially contribute to both cohorts if he/she receives radiation to both head and body sites.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Site-specific distributions of patient setup uncertainty.
Time Frame: 5 years after activation
|
The numbers of subjects enrolled in the head cohort and the body cohort.
|
5 years after activation
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Differences in setup errors calculated from orthogonal radiographs and cone beam computed tomography (CBCT)
Time Frame: 5 years
|
This is to determine if setup corrections estimated from orthogonal radiographs are similar to those from volumetric imaging.
The differences of each positional shift (x, y, z, pitch, roll, yaw) are measured.
|
5 years
|
Residual errors after image-guided setup corrections
Time Frame: 5 years
|
This is to determine if residual setup errors are submillimeter after image guidance with robotic cone beam computed tomography and 6 degree-of-freedom patient positioner.
Residual errors differences for six parameters (x, y, z, pitch, roll, yaw) are measured.
|
5 years
|
Distributions of intra-fractional patient motion
Time Frame: 5 years
|
This is to estimate the change in patient position during a treatment fraction based on pre- and post-fractional volumetric imaging.
The differences of each positional shift (x, y, z, pitch, roll, yaw) are measured.
|
5 years
|
Risk factors of large setup uncertainty and intra-fractional movement
Time Frame: 5 years
|
Risk factors (e.g., age, anesthesia, and anatomic site) that associate with the significantly large setup uncertainty and intra-fractional movement will be identified.
The association with p value between age and setup uncertainty is measured.
|
5 years
|
Risk factors of large setup uncertainty and intra-fractional movement
Time Frame: 5 years
|
Risk factors (e.g., age, anesthesia, and anatomic site) that associate with the significantly large setup uncertainty and intra-fractional movement will be identified.
The association with p value between anesthesia and setup uncertainty is measured.
|
5 years
|
Risk factors of large setup uncertainty and intra-fractional movement
Time Frame: 5 years
|
Risk factors (e.g., age, anesthesia, and anatomic site) that associate with the significantly large setup uncertainty and intra-fractional movement will be identified.
The association with p value between anatomic site and setup uncertainty is measured.
|
5 years
|
Collaborators and Investigators
Investigators
- Principal Investigator: Chia-ho Hua, PhD, St. Jude Children's Research Hospital
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- SJPRONTON2
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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