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Study identifier: NCT05327686 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Testing the Addition of Stereotactic Radiation Therapy With Immune Therapy for the Treatment of Patients With Unresectable or Metastatic Renal Cell Cancer, SAMURAI Trial

Condition: Metastatic Renal Cell Carcinoma · Stage III Renal Cell Cancer AJCC v8 · Stage IV Renal Cell Cancer AJCC v8  ·  Sponsor: NRG Oncology

PhasePhase 2
Planned participants240
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

This phase II trial tests whether the addition of radiation to the primary tumor, typically given with stereotactic ablative radiation therapy (SABR), in combination with standard of care immunotherapy improves outcomes in patients with renal cell cancer that is not recommended for surgery and has spread from where it first started (primary site) to other places in the body (metastatic). Radiation therapy uses high energy photons to kill tumor cells and shrink tumors. Stereotactic body radiation therapy uses special equipment to position a patient and deliver radiation to tumors with high precision. This method may kill tumor cells with fewer doses of radiation over a shorter period and cause less damage to normal tissue. Immunotherapy with monoclonal antibodies, such as nivolumab, ipilimumab, avelumab, and pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Axitinib, cabozantinib, and lenvatinib are in a class of medications called antiangiogenic agents. They work by stopping the formation of blood vessels that bring oxygen and nutrients to tumor. This may slow the growth and spread of tumor. Giving SABR in combination with standard of care immunotherapy may help shrink or stabilize the cancer in patients with renal cell cancer.

This description comes directly from the study's public registry record.

Talk to the study team

Contact details are listed per location below or on the registry record.

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Locations (328)

University of Alabama at Birmingham Cancer CenterBirmingham, Alabama, United StatesActive Not Recruiting
Kingman Regional Medical CenterKingman, Arizona, United StatesRecruiting
Mayo Clinic Hospital in ArizonaPhoenix, Arizona, United StatesRecruiting
University of Arkansas for Medical SciencesLittle Rock, Arkansas, United StatesRecruiting
PCR OncologyArroyo Grande, California, United StatesRecruiting
Tower Cancer Research FoundationBeverly Hills, California, United StatesRecruiting
Mills-Peninsula Medical CenterBurlingame, California, United StatesRecruiting
City of Hope Comprehensive Cancer CenterDuarte, California, United StatesActive Not Recruiting
UC San Diego Health System - EncinitasEncinitas, California, United StatesRecruiting
UCI Health - Chao Family Comprehensive Cancer Center and Ambulatory CareIrvine, California, United StatesRecruiting
UC San Diego Moores Cancer CenterLa Jolla, California, United StatesRecruiting
Los Angeles General Medical CenterLos Angeles, California, United StatesRecruiting

+ 316 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT05327686