Therapeutic Response Statement (Sensitivity)

This therapeutic response statement Supports the relationship that PD-L1 >= 1%, Wild type ALK, and Wild type EGFR status confers therapeutic sensitivity to Pembrolizumab in patients with Non-Small Cell Lung Cancer.

The U.S. Food and Drug Administration granted approval to pembrolizumab for the first-line treatment of patients with non-small cell lung cancer expressing PD-L1 [Tumor Proportion Score (TPS) >=1%], as determined by an FDA-approved test, with no EGFR or ALK genomic tumor aberrations, and is: Stage III where patients are not candidates for surgical resection or definitive chemoradiation, or metastatic.

This statement is based on a regulatory approval from the Food and Drug Administration:

KEYTRUDA is a programmed death receptor-1 (PD-1)-blocking antibody indicated as a single agent for the first-line treatment of patients with NSCLC expressing PD-L1 [Tumor Proportion Score (TPS) >=1%] as determined by an FDA-approved test, with no EGFR or ALK genomic tumor aberrations, and is: Stage III where patients are not candidates for surgical resection or definitive chemoradiation, or metastatic.

Citation

Merck Sharp & Dohme Corp. Keytruda (pembrolizumab) [package insert]. U.S. Food and Drug Administration website. https://www.accessdata.fda.gov/drugsatfda_docs/label/2026/125514Orig1s186lbl.pdf. Revised February 2026. Accessed March 2, 2026. Merck Sharp & Dohme Corp. Keytruda (pembrolizumab) [package insert]. U.S. Food and Drug Administration website. https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/125514s047lbl.pdf. Revised April 2019. Accessed October 6, 2026.

Contributions

Date	Contributor	Description
2024-10-30	Van Allen lab	Initial access of FDA approvals
2019-04-11	Food and Drug Administration	Indication received traditional approval.