Pfizer Inc.
Diagnostic anti-PD-L1 antibody and use thereof

Abstract:

The present invention provides for an antibody or antigen-binding fragment thereof which binds to an epitope within human PD-L1 with high specificity and reproducibility. The inventive antibody or antigen-binding fragment thereof may be used in assessing PD-L1 expression in tissue samples to aid in patient stratification. The present invention further provides methods of producing the inventive antibody.