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Study details
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Study to Evaluate CD8 PET Imaging as a Marker of Immune Response to Stereotactic Body Radiation Therapy (ELIXR)

City of Hope Medical Center
NCT IDNCT05371132ClinicalTrials.gov data as of Apr 2026
Phase

Phase 1

Target enrollment

10

Study length

about 4.3 years

Ages

18+

Locations

1 site in CA

What this study is about

This trial is testing whether radiation therapy can help the immune system fight cancer. It uses imaging tests, like zirconium Zr 89-Df-crefmirlimab PET scans, to see if radiation therapy recruits CD8 T cells, which are important for fighting tumors.

Simplified from trial records by PatientMatch.

What you may be asked to do

  • 1.Receive Intensity Modulated Radiation Therapy
  • 2.Receive Stereotactic Body Radiation Therapy
  • 3.Take Zirconium Zr 89-Df-Crefmirlimab
  • +1 more

Participation Burden

What's physically and logistically required of participants.

Logistics & Travel
In-person visits

Requires travel to a study site

Physical Intervention
Standard

How treatment is administered

Treatment Assignment
All receive treatment

Everyone gets the investigational treatment.

Extracted study details

Pulled from the trial record to show what is being tested and what the study is measuring.

Drug classes

monoclonal antibody

Endpoints

Secondary: CD8 PET SUV (Subset), Evaluation of tumor response (fludeoxyglucose F-18 [FDG] PET and/or computed tomography [CT]) as it relates to both baseline CD8 PET SUV and changes observed after SBRT., Histology specific differences in immune characterization (CD8 PET SUV) and changes, Incidence of adverse events, Site specific differences in immune characterization (CD8 PET SUV) and changes, Time evolution of CD8 PET SUV (decay corrected)

Procedures

radiation, imaging

Body systems

Oncology