Programmed Death Ligand 1 Expression in Paired Non–Small Cell Lung Cancer Tumor Samples

Microabstract (≤60 words, accessible to a nonexpert audience. Should describe the area and reason for the study, the approach taken (including sample size aspects), the overall result, and the general significance of the findings); currently 58 We measured PD-L1 expression in paired tumor tissue samples collected at different dates and lesions from 91 patients with NSCLC. There was a statistically significant correlation in PD-L1 scores, with a 67% concordance rate when samples were categorized as PD-L1 positive and PD-L1 negative. These findings should be considered when selecting patients for clinical trials or treatment based on PD-L1 expression.

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