@article {BOOKA2321, author = {EISUKE BOOKA and HIROTOSHI KIKUCHI and RYOMA HANEDA and WATARU SONEDA and SANSHIRO KAWATA and TOMOHIRO MURAKAMI and TOMOHIRO MATSUMOTO and YOSHIHIRO HIRAMATSU and HIROYA TAKEUCHI}, title = {Impact of Immune-related Adverse Events on Nivolumab Efficacy in Patients With Upper Gastrointestinal Cancer}, volume = {35}, number = {4}, pages = {2321--2326}, year = {2021}, doi = {10.21873/invivo.12506}, publisher = {International Institute of Anticancer Research}, abstract = {Background: The development of immune-related adverse events (irAEs) has been found to be associated with survival benefits in some cancers. However, data on the relation between irAEs and gastroesophageal adenocarcinoma (GEA) or esophageal squamous cell carcinoma (ESCC) are scarce. Patients and Methods: We retrospectively reviewed the data of 29 GEA and 21 ESCC patients treated with nivolumab. We investigated the impact of the development of irAEs in GEA and ESCC patients on best overall response and survival. Results: Patients with irAEs had significantly better best overall response, overall survival and progression-free survival than those without irAEs (p=0.007, p\<0.001 and p=0.005, respectively). Multivariate analyses identified an Eastern Cooperative Oncology Group performance status >=2 and the absence of an irAE as independent poor prognostic factors (p\<0.001 and 0.016, respectively). Conclusion: The development of irAEs has the potential to predict survival outcomes in patients with GEA and ESCC treated with nivolumab.}, issn = {0258-851X}, URL = {https://iv.iiarjournals.org/content/35/4/2321}, eprint = {https://iv.iiarjournals.org/content/35/4/2321.full.pdf}, journal = {In Vivo} }