Stereotactic Body Radiation Therapy With Immunotherapy for the Treatment of Mesothelioma
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ClinicalTrials.gov Identifier: NCT04926948 |
Recruitment Status :
Recruiting
First Posted : June 15, 2021
Last Update Posted : February 9, 2023
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Condition or disease | Intervention/treatment | Phase |
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Pleural Mesothelial Neoplasm | Other: Immunotherapy Other: Quality-of-Life Assessment Radiation: Stereotactic Body Radiation Therapy | Phase 1 |
PRIMARY OBJECTIVE:
I. To determine the feasibility of focal stereotactic body radiation therapy (SBRT) with immune check inhibitors (ICI) for treatment of mesothelioma.
SECONDARY OBJECTIVES:
I. To determine progression free survival in patients treated with SBRT and ICI.
II. To assess acute and late toxicities overall in patients treated with SBRT and ICI.
EXPLORATORY OBJECTIVES:
I. To determine overall survival in these patients. II. To estimate the objective response rate (ORR) using immune-modified Response Evaluation Criteria in Solid Tumors (iRECIST) 1.1 criteria.
III. To describe patterns of failure. IV. To estimate the quality of life (QOL) in these patients. V. Determine whether T-cell receptor expression changes during and after immunotherapy and SBRT, and whether these changes correlate with outcomes.
VI To evaluate potential predictive and prognostic biomarkers using various assays including flow cytometry assays, qualitative and quantitative analyses of patients' blood to explore associations with all primary and secondary endpoints.
OUTLNE:
Patients undergo 3-5 daily fractions of SBRT in the absence of disease progression or unacceptable toxicity. Patients also receive immunotherapy at the discretion of the treating medical oncologist.
After completion of study treatment, patients are followed up every 3 months for up to 12 months.
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 20 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | SBRT With Immunotherapy for Mesothelioma |
Actual Study Start Date : | July 12, 2021 |
Estimated Primary Completion Date : | May 25, 2025 |
Estimated Study Completion Date : | May 25, 2026 |

Arm | Intervention/treatment |
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Experimental: Treatment (SBRT, immunotherapy)
Patients undergo 3-5 daily fractions of SBRT in the absence of disease progression or unacceptable toxicity. Patients also receive immunotherapy at the discretion of the treating medical oncologist.
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Other: Immunotherapy
Immunotherapy
Other Names:
Other: Quality-of-Life Assessment Ancillary studies
Other Name: Quality of Life Assessment Radiation: Stereotactic Body Radiation Therapy Undergo SBRT
Other Names:
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- Feasibility of treating patients with stereotactic body radiation therapy (SBRT) and immune checkpoint inhibitor [ Time Frame: Up to 12 months ]
- Progression-free survival (PFS) [ Time Frame: From study entry to any progression or death, assessed up to 12 months ]Will be estimated using the Kaplan-Meier method.
- Incidence of acute toxicity [ Time Frame: Up to 90 days post-SBRT ]These adverse events (AEs) will be shown via frequency tables and percentages. The maximum grade for each type of adverse event will be summarized using Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. Will assess and summarize all acute and late AE's, regardless of attribution.
- Incidence of late toxicity [ Time Frame: Up to 90 days post-SBRT ]These AEs will be shown via frequency tables and percentages. The maximum grade for each type of adverse event will be summarized using CTCAE version 5.0. Will assess and summarize all acute and late AE's, regardless of attribution.
- Overall survival (OS) [ Time Frame: From study entry to death from any cause, assessed up to 12 months ]Will be estimated using the Kaplan-Meier method.
- Response rate [ Time Frame: Up to 12 months ]The confirmed response rate (by Response Evaluation Criteria in Solid Tumors) will be assessed. The frequency and percentage of responses will be calculated.
- Patterns of failure [ Time Frame: Up to 12 months ]Will be described descriptively as well using standard summary statistics (frequencies, percentages, etc.).
- Quality of life (QOL) [ Time Frame: Baseline up to 12 months ]Will be assessed descriptively in these patients. Standard paired tests (paired t-test or the non-parametric equivalent) will be used to test for significance in QOL. Graphical and statistical methods will be used to summarize this data descriptively.
- T-cell receptor expression changes [ Time Frame: Baseline up to 12 months ]Will correlate changes with outcomes (PFS, OS, response, etc.). Potential predictive and prognostic biomarkers using various assays including flow cytometry assays, quality and quantitative analysis of patients' blood to explore associations with all primary and secondary endpoints will also be evaluated. Due to the limited sample size, these analyses will be hypothesis generating and descriptive in nature. Descriptive statistics will be summarized and the blood and tissue marker data will be correlated with clinical endpoints (PFS, OS, response, etc.). For time-to-event data, the Kaplan-Meier method will be used. For categorical data, will use the Fisher's exact test. For biomarker data used to predict binary outcomes (i.e. response versus no response), will use logistic regression models.

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Age >= 18 years
- Histological confirmation of pleural mesothelioma
- Measurable disease
- Eastern Cooperative Oncology Group (ECOG) performance status (PS) =< 2
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Negative pregnancy test done =< 14 days prior to registration, for women of childbearing potential only. NOTE: male/female: Must be willing to use birth control for the entire study and must agree to use one of the following birth control methods listed:
- Hormonal methods, such as birth control pills, patches, injections, vaginal ring, or implants
- Barrier methods (such as a condom or diaphragm) used with a spermicide (a foam, cream, or gel that kills sperm)
- Intrauterine device (IUD)
- Abstinence (no sex)
- Provide written informed consent
- Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study)
- Willing to provide blood samples for correlative research purposes
- Patient has received or is planning to receive ICI for mesothelioma
- Patient is planning to receive SBRT (stereotactic body radiation therapy) for mesothelioma
Exclusion Criteria:
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Any of the following:
- Pregnant women
- Nursing women

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04926948
United States, Minnesota | |
Mayo Clinic in Rochester | Recruiting |
Rochester, Minnesota, United States, 55905 | |
Contact: Clinical Trials Referral Office 855-776-0015 mayocliniccancerstudies@mayo.edu | |
Principal Investigator: Kenneth R. Olivier, M.D. |
Principal Investigator: | Kenneth R Olivier | Mayo Clinic in Rochester |
Responsible Party: | Mayo Clinic |
ClinicalTrials.gov Identifier: | NCT04926948 |
Other Study ID Numbers: |
MC1924 NCI-2021-04302 ( Registry Identifier: CTRP (Clinical Trial Reporting Program) ) MC1924 ( Other Identifier: Mayo Clinic in Rochester ) P30CA015083 ( U.S. NIH Grant/Contract ) |
First Posted: | June 15, 2021 Key Record Dates |
Last Update Posted: | February 9, 2023 |
Last Verified: | February 2023 |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Mesothelioma Neoplasms, Mesothelial Adenoma |
Neoplasms, Glandular and Epithelial Neoplasms by Histologic Type Neoplasms |