A Prospective Study Using Implanted Fiducial Markers to Assess Treatment Accuracy and Esophageal Toxicity in Spinal Stereotactic Body Radiation Therapy
2 other identifiers
interventional
41
1 country
1
Brief Summary
The goal of the first part of this clinical research study is to learn how to deliver more accurate radiation treatment of tumors in the spine. Researchers also want to learn how internal organs might move during radiation treatment. The goal of the second part of this study is to learn if it is safe to allow slightly more radiation to the normal esophagus when spinal tumors close by are being treated. This may result in better tumor control.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Aug 2012
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 18, 2012
CompletedFirst Posted
Study publicly available on registry
June 20, 2012
CompletedStudy Start
First participant enrolled
August 3, 2012
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 14, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
April 14, 2023
CompletedResults Posted
Study results publicly available
May 12, 2026
CompletedMay 12, 2026
April 1, 2026
10.7 years
June 18, 2012
April 16, 2024
April 20, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Overall Response at Protocol Treatment Site
Patients will be monitored at each follow-up visit, with MRI of the spine performed at each follow-up time point during the first year. Treated lesions will be classified as progressive (defined as \> 25% increased volume), stable (defined as radiographically unchanged), or smaller, and spinal tumor progression-free survival (PFS) will be calculated.
10 years and 9.5 months
Study Arms (2)
Hypofractionated Radiation
EXPERIMENTALAll patients receive CT-guided spinal SBRT using IMRT to maximize conformality of treatment plan to target volume, while sparing normal structures. Dose given to tumor and number of treatments received determined by patient's doctor. In second stage, characterize tolerance of esophagus to hypofractionated radiation doses through prospective constraint relaxation and toxicity monitoring. Data collected from Group 1 in first stage will give data on dose delivered to esophagus. Second stage of protocol will begin accrual once Group 1 has filled. Dose constraints used for Groups 3 allow higher dose. Dose constraints for Group 4 represent modest increase of esophageal dose maximums.
ExacTrac Positioning System
EXPERIMENTALAnalysis performed of ExacTrac positioning system with and without fiducial guidance. Four dimensional CT datasets for simulation will allow use of data from this portion of protocol to characterize degree to which organ at risk (OAR) motion is relevant at each spinal level. 20 patients accrued in two groups of 10, with 10 patients in each rostral-caudal position in the spine (Group 1: T4-T12, Group 2: L1-L5). Imaging done with fiducial markers for this study will not impact patient management. Patients will treated with standard dose constraints to normal tissues.
Interventions
Group 1 and 2: Standard doses of radiation therapy to the normal esophagus while treating the tumor. Up to 2 groups of 10 participants enrolled.
Completion of questionnaire before radiation treatment starts, and 1 time a week for the next 4 weeks. It should take about 10 minutes to complete.
Group 3 and 4: Higher dose of radiation to esophagus than group before it, if no intolerable side effects were seen. 2 groups of 10 participants enrolled in the second part of study. Only participants who will receive a single spinal SBRT treatment are eligible for second part of study.
4 gold seeds implanted into bones of spine: 2 gold seeds above and 2 gold seeds below the area of tumor to be treated.
Eligibility Criteria
You may qualify if:
- STAGE 1: \>/= 18 years old
- STAGE 1: Pathologically confirmed diagnosis of cancer, including, but not limited to non-small cell lung cancer, breast, prostate, renal cell, melanoma, gastrointestinal, sarcoma, thyroid, head and neck primary, and carcinoma of unknown primary
- STAGE 1: Signed informed consent
- STAGE 2: 1-3 above, and Patients undergoing single fraction spinal SBRT
You may not qualify if:
- STAGE 1: Patient with radiosensitive histologies (lymphoma, multiple myeloma, small cell carcinomas, germ cell tumors)
- STAGE 1: Extensive (\> 50%) height loss of the involved vertebral body
- STAGE 1: Inability to tolerate lying flat on treatment table for greater than 30 minutes
- STAGE 1: Pregnancy
- STAGE 2: Prior irradiation of the spine site and level to be treated
- STAGE 2: Patients with primary disease arising in the posterior elements of the VB in question
- STAGE 2: History of Barrett's esophagus, esophageal webbing, stricture, or fistula
- STAGE 2: Prior radiation to the esophagus
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Texas MD Anderson Cancer Center
Houston, Texas, 77030, United States
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Dr. Amol Jitendra Ghia
- Organization
- University of Texas MD Anderson Cancer Center
Study Officials
- PRINCIPAL INVESTIGATOR
Amol J. Ghia, MD
M.D. Anderson Cancer Center
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 18, 2012
First Posted
June 20, 2012
Study Start
August 3, 2012
Primary Completion
April 14, 2023
Study Completion
April 14, 2023
Last Updated
May 12, 2026
Results First Posted
May 12, 2026
Record last verified: 2026-04