Palliative Lattice Stereotactic Body Radiotherapy (SBRT) for Patients With Sarcoma, Thoracic, Abdominal, and Pelvic Cancers

September 21, 2023 updated by: Washington University School of Medicine

A Trial of Palliative Lattice Stereotactic Body Radiotherapy (SBRT) for Patients With Sarcoma, Thoracic, Abdominal, and Pelvic Cancers

This is a study evaluating the safety and efficacy of Lattice SBRT for patients with large tumors (≥ 4.5 cm) planning to undergo palliative radiotherapy.

Study Overview

Study Type

Interventional

Enrollment (Actual)

70

Phase

  • Not Applicable

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

    • Missouri
      • Saint Louis, Missouri, United States, 63110
        • Washington University School of Medicine

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

Description

Inclusion Criteria:

  • Histologically or cytologically confirmed sarcoma (including extremity), thoracic cancer (including esophageal), abdominal cancer (including retroperitoneal sarcoma), or pelvic cancer.
  • Planning to undergo palliative radiotherapy to a lesion ≥ 4.5 cm as measured with radiographic imaging or with calipers by clinical exam.
  • ECOG performance status ≤ 2
  • At least 18 years of age.
  • Radiotherapy is known to be teratogenic. For this reason, women of childbearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control, abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she must inform her treating physician immediately. Men treated or enrolled on this protocol must also agree to use adequate contraception prior to the study, for the duration of the study, and 6 months after completion of the study
  • Ability to understand and willingness to sign an IRB approved written informed consent document

Exclusion Criteria:

  • Prior high-dose radiotherapy that overlaps with any planned site of protocol radiotherapy. Patients where the Lattice SBRT fields may overlap with the low dose (<10 Gy) region of prior radiotherapy treatments are eligible and may be treated if this is determined to be safe by the treating physician.
  • Patients with tumors in need of urgent surgical intervention, such as life-threatening bleeding or those at high risk for pathologic fracture.
  • Currently receiving any cytotoxic cancer therapy regimens or VEGF inhibitors that will overlap with the Lattice SBRT administration.

    *Cytotoxic chemotherapy and VEGF inhibitors prior to radiotherapy or planned after radiotherapy delivery are allowed at the discretion of the treating radiation oncologist. This includes continuing a treatment plan which was initiated prior to the start of radiotherapy. A 2-week washout is recommended, but not required.

  • Pregnant. Women of childbearing potential must have a negative pregnancy test within 20 days of study entry.
  • Patients with HIV are eligible unless their CD4+ T-cell counts are < 350 cells/mcL or they have a history of AIDS-defining opportunistic infection within the 12 months prior to registration. Concurrent treatment with effective ART according to DHHS treatment guidelines is recommended. Recommend exclusion of specific ART agents based on predicted drug-drug interactions (i.e. for sensitive CYP3A4 substrates, concurrent strong CYP3A4 inhibitors (ritonavir and cobicistat) or inducers (efavirenz) should be contraindicated).

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: SBRT
5-fraction Lattice SBRT delivered to 20 Gy with a simultaneous integrated boost (SIB) to 66.7 Gy.
Treatment will take approximately 2 weeks.
Other Names:
  • SBRT
-Baseline, immediately after radiotherapy completion (fraction 5), 14 days after radiotherapy, and 30 day follow-up

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Rate of Local Control
Time Frame: At 6 months
At 6 months
Number of Participants With Treatment-related, Non-hematologic Grade ≥ 3 Toxicity
Time Frame: Through 6 months
-Graded using CTCAE v5.0
Through 6 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Patient Reported Toxicity as Measured by PRO-CTCAE Assessment
Time Frame: Baseline, 2 weeks post-treatment (approximately week 4), 30 days, 3 months, 6 months, and 12 months
-The PRO-CTCAE Measurement System characterizes the frequency, severity, interference, and presence/absence of symptomatic toxicities
Baseline, 2 weeks post-treatment (approximately week 4), 30 days, 3 months, 6 months, and 12 months
Quality of Life as Measured by PROMIS Physical Function Assessment
Time Frame: Baseline, 2 weeks post-treatment (approximately week 4), 30 days, 3 months, 6 months, and 12 months
  • 10-item questionnaire assessing current self-reported physical function
  • Answers range from 1-cannot do to 5=not at all/without any difficulty
  • Score ranges from 10-50 with a higher score indicating better physical function
Baseline, 2 weeks post-treatment (approximately week 4), 30 days, 3 months, 6 months, and 12 months
Quality of Life as Measured by PROMIS Global Health Physical Assessment
Time Frame: Baseline, 2 weeks post-treatment (approximately week 4), 30 days, 3 months, 6 months, and 12 months
  • 2-item questionnaire assessing current self-reported overall physical function
  • Answers range from 1=poor/not all all to 5=excellent/completely
  • Score ranges from 2-10 with a higher score indicating better global health physical function
Baseline, 2 weeks post-treatment (approximately week 4), 30 days, 3 months, 6 months, and 12 months
Quality of Life as Measured by PROMIS Anxiety Assessment
Time Frame: Baseline, 2 weeks post-treatment (approximately week 4), 30 days, 3 months, 6 months, and 12 months
  • 29-item questionnaire assessing current self-reported anxiety
  • Answers range from 1-never to 5=always
  • Score ranges from 29-145 with a lower score indicating less anxiety
Baseline, 2 weeks post-treatment (approximately week 4), 30 days, 3 months, 6 months, and 12 months
Quality of Life as Measured by PROMIS Depression Assessment
Time Frame: Baseline, 2 weeks post-treatment (approximately week 4), 30 days, 3 months, 6 months, and 12 months
  • 4-item questionnaire assessing current self-reported depression
  • Answers range from 1=never to 5=always
  • Score ranges from 4-20 with a lower score indicating less depression
Baseline, 2 weeks post-treatment (approximately week 4), 30 days, 3 months, 6 months, and 12 months
Patient Reported Pain as Measured by Numeric Pain Scale
Time Frame: Baseline, 2 weeks post-treatment (approximately week 4), 30 days, 3 months, 6 months, and 12 months
-The Numeric Pain Scale is an 11-point scale for patient self-reporting of pain
Baseline, 2 weeks post-treatment (approximately week 4), 30 days, 3 months, 6 months, and 12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Pamela Samson, M.D., Washington University School of Medicine

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

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)

September 22, 2020

Primary Completion (Actual)

September 30, 2022

Study Completion (Actual)

May 4, 2023

Study Registration Dates

First Submitted

September 9, 2020

First Submitted That Met QC Criteria

September 16, 2020

First Posted (Actual)

September 17, 2020

Study Record Updates

Last Update Posted (Actual)

October 12, 2023

Last Update Submitted That Met QC Criteria

September 21, 2023

Last Verified

September 1, 2023

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

No

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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