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Brief Report: Role of Consolidation Durvalumab in patients with EGFR and HER2 Mutant Unresectable Stage III NSCLC. Journal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer Hellyer, J. A., Aredo, J. V., Das, M. n., Ramchandran, K. n., Padda, S. K., Neal, J. W., Wakelee, H. A. 2021

Abstract

Despite the recent advance of consolidation durvalumab in the treatment of unresectable stage III non-small cell lung cancer (NSCLC), not every patient benefits from durvalumab and predictive markers of response have been difficult to identify.We performed a retrospective analysis of patients with unresectable stage III NSCLC treated with consolidation durvalumab following definitive chemoradiation from January 2018 to March 2020.Thirty-six patients with unresectable stage III NSCLC were treated with consolidation durvalumab. Fourteen of these patients had tumor mutations in the ERBB family including 11 EGFR and 3 ERBB2. The ERBB2/EGFR tumor mutation cohort was more likely to be non-smokers; otherwise the two groups were similar in age, sex, PD-L1 expression and type of prior chemotherapy regimen. Patients in the ERBB2/EGFR cohort had a significantly shorter disease free survival compared to the EGFR/ERBB2 wildtype cohort (7.5 months vs NR, p= 0.04).Consolidation durvalumab appears to be less efficacious in patients with ERBB2/EGFR mutant tumors. Future work should seek to evaluate this in the prospective setting and provide insight into the optimal treatment of ERBB2/EGFR-mutant stage III NSCLC.

View details for DOI 10.1016/j.jtho.2020.12.020

View details for PubMedID 33539970