One immunotherapeutic agent for patients with advanced non‐small cell lung carcinoma, pembrolizumab, has a companion immunohistochemistry (IHC)‐based assay that predicts response by quantifying programmed death‐ligand 1 (PD‐L1) expression. The current… Click to show full abstract
One immunotherapeutic agent for patients with advanced non‐small cell lung carcinoma, pembrolizumab, has a companion immunohistochemistry (IHC)‐based assay that predicts response by quantifying programmed death‐ligand 1 (PD‐L1) expression. The current study assessed the feasibility of quantifying PD‐L1 expression using cytologic non‐small cell lung carcinoma specimens and compared the results with those from small biopsy and surgical resection specimens.
               
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