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Study identifier: NCT04729959 Synced from ClinicalTrials.gov · August 07, 2026
● Study status: Active Not Recruiting

Testing the Addition of the Immune Therapy Drugs, Tocilizumab and Atezolizumab, to Radiation Therapy for Recurrent Glioblastoma

Condition: Diffuse Astrocytoma, IDH-Wildtype · Recurrent Glioblastoma  ·  Sponsor: National Cancer Institute (NCI)

PhasePhase 2
Planned participants61
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

Sponsor, CRO or site team? See where this study is running → — listed sites, countries and recruiting context. Everything below is written for patients and caregivers.

About this study

This phase II trial studies the best dose and effect of tocilizumab in combination with atezolizumab and stereotactic radiation therapy in treating glioblastoma patients whose tumor has come back after initial treatment (recurrent). Tocilizumab is a monoclonal antibody that binds to receptors for a protein called interleukin-6 (IL-6), which is made by white blood cells and other cells in the body as well as certain types of cancer. This may help lower the body's immune response and reduce inflammation. Immunotherapy with monoclonal antibodies, such as atezolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Fractionated stereotactic radiation therapy uses special equipment to precisely deliver multiple, smaller doses of radiation spread over several treatment sessions to the tumor. The goal of this study is to change a tumor that is unresponsive to cancer therapy into a more responsive one. Therapy with fractionated stereotactic radiotherapy in combination with tocilizumab may suppress the inhibitory effect of immune cells surrounding the tumor and consequently allow an immunotherapy treatment by atezolizumab to activate the immune response against the tumor. Combination therapy with tocilizumab, atezolizumab and fractionated stereotactic radiation therapy may shrink or stabilize the cancer better than radiation therapy alone in patients with recurrent glioblastoma.

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

Talk to the study team

No contact information is available for this study as per the public registry record.

Always discuss trial participation with your own doctor first.

Locations (110)

Kaiser Permanente-AnaheimAnaheim, California, United States
Kaiser Permanente-BellflowerBellflower, California, United States
Kaiser Permanente Los Angeles Medical CenterLos Angeles, California, United States
Los Angeles General Medical CenterLos Angeles, California, United States
USC / Norris Comprehensive Cancer CenterLos Angeles, California, United States
Kaiser Permanente-OntarioOntario, California, United States
UC Irvine Health/Chao Family Comprehensive Cancer CenterOrange, California, United States
Sutter Cancer Centers Radiation Oncology Services-RosevilleRoseville, California, United States
Sutter Roseville Medical CenterRoseville, California, United States
Sutter Medical Center SacramentoSacramento, California, United States
University of California Davis Comprehensive Cancer CenterSacramento, California, United States
Kaiser Permanente-San Diego ZionSan Diego, California, United States

+ 98 more locations — full list on the registry record.

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