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Clinical Trial Summary

Non-invasive imaging of tumor PD-L1 expression with 89Zr-labeled durvalumab PET/CT predicts response to durvalumab.


Clinical Trial Description

The programmed death 1 (PD1)/ programmed death ligand 1 (PD-L1) pathway plays an important role in regulating the T-cell anti tumor response. Blocking this interaction with the anti PD-L1 monoclonal antibody durvalumab has proven to be effective resulting in durable disease control rates. Currently, PD-L1 expression as determined by immune histochemistry (IH) is the best available biomarker for treatment response, but standardized scoring criteria are lacking and the risk for sampling errors exists. Molecular imaging using 89Zr-labeled antibodies may overcome these limitations, enabling the visualization of PD-L1 expression in primary and metastatic tumor lesions and providing information on the in vivo accessibility of the PD-L1 target following intravenous administration. Besides, a baseline FDG-PET scan will be performed. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03829007
Study type Interventional
Source Radboud University
Contact
Status Completed
Phase Phase 1/Phase 2
Start date April 15, 2019
Completion date December 9, 2021

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