Background: Large cell neuroendocrine tumor (LCNEC) of the lung is a rare and aggressive tumor similar to small cell lung cancer (SCLC). Thus, it is often treated similarly to SCLC in the front-line setting with a platinum doublet. However, treatment for patients beyond the first line remains undefined. Case presentation: We report the case of a patient with stage IB LCNEC (PD-L1 negative but positive for PD-L1 amplification and tumor mutation burden high) who progressed after adjuvant chemotherapy after surgery and subsequent therapy with an antibody drug conjugate targeting a neuroendocrine-specific cell surface marker but achieved a significant and durable response with pembrolizumab, a humanized IgG4 monoclonal anti-PD-1 antibody. Conclusions: Immunotherapy with checkpoint inhibitors is an effective treatment option for patients with metastatic LCNEC, even if PD-L1 expression is negative.
CITATION STYLE
Wang, V. E., Urisman, A., Albacker, L., Ali, S., Miller, V., Aggarwal, R., & Jablons, D. (2017). Checkpoint inhibitor is active against large cell neuroendocrine carcinoma with high tumor mutation burden. Journal for ImmunoTherapy of Cancer, 5(1). https://doi.org/10.1186/s40425-017-0281-y
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