Immune Responses in Prostate, Lung, Melanoma and Breast Cancer Patients Following Stereotactic Body Radiotherapy (SBRT), Intensity Modulated Radiotherapy (IMRT) or Brachytherapy

NCT ID: NCT01777802

Last Updated: 2025-08-27

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

98 participants

Study Classification

OBSERVATIONAL

Study Start Date

2013-01-02

Study Completion Date

2023-06-21

Brief Summary

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Success of cancer immunotherapy is limited by the ability of solid tumors to evade local and systemic antitumoral immune responses. Several mechanisms of tumor immune evasion have been identified, including low intratumor expression of antigens and elevated expression of inhibitory co-regulatory molecules. An effective immunotherapy is one which would induce necrotic cell death and accompanying proinflammatory cytokine induction. Stereotactic Body Radiotherapy (SBRT) or Intensity Modulated Radiotherapy (IMRT) or brachytherapy, which is capable of delivering high, conformal radiation doses (\>8 Gy) of tumor ablative radiation may be an effective means of conditioning a tumor bed to a state favorable to the initiation of robust antitumoral immune responses.

Detailed Description

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Conditions

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Prostate Cancer Breast Cancer Lung Cancer Melanoma

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Prostate Cancer

Patients with prostate cancer will be treated with SBRT, IMRT or brachytherapy

SBRT

Intervention Type RADIATION

IMRT

Intervention Type RADIATION

Brachytherapy

Intervention Type RADIATION

Breast Cancer

Patients with breast cancer will be treated with SBRT, IMRT or brachytherapy

SBRT

Intervention Type RADIATION

IMRT

Intervention Type RADIATION

Brachytherapy

Intervention Type RADIATION

Lung Cancer

Patients with lung cancer will be treated with SBRT, IMRT or brachytherapy

SBRT

Intervention Type RADIATION

IMRT

Intervention Type RADIATION

Brachytherapy

Intervention Type RADIATION

Melanoma Cancer

Patients with melanoma cancer will be treated with SBRT, IMRT or brachytherapy

SBRT

Intervention Type RADIATION

IMRT

Intervention Type RADIATION

Brachytherapy

Intervention Type RADIATION

Interventions

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SBRT

Intervention Type RADIATION

IMRT

Intervention Type RADIATION

Brachytherapy

Intervention Type RADIATION

Eligibility Criteria

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Inclusion Criteria

* Hormone Refractory, Metastatic Prostate Cancer, Lung Cancer, and Melanoma or Breast Cancer

Exclusion Criteria

-Life expectancy of less than 3 months
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Mayo Clinic

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Sean S Park, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Mayo Clinic

Locations

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Mayo Clinic in Rochester

Rochester, Minnesota, United States

Site Status

Countries

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United States

References

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Evans JD, Morris LK, Zhang H, Cao S, Liu X, Mara KC, Stish BJ, Davis BJ, Mansfield AS, Dronca RS, Iott MJ, Kwon ED, Foote RL, Olivier KR, Dong H, Park SS. Prospective Immunophenotyping of CD8+ T Cells and Associated Clinical Outcomes of Patients With Oligometastatic Prostate Cancer Treated With Metastasis-Directed SBRT. Int J Radiat Oncol Biol Phys. 2019 Jan 1;103(1):229-240. doi: 10.1016/j.ijrobp.2018.09.001. Epub 2018 Sep 8.

Reference Type DERIVED
PMID: 30205124 (View on PubMed)

Related Links

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Other Identifiers

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12-008383

Identifier Type: -

Identifier Source: org_study_id

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