RT Journal Article SR Electronic T1 Nivolumab-induced exocrine pancreatic insufficiency JF Frontline Gastroenterology JO Frontline Gastroenterol FD BMJ Publishing Group Ltd SP 167 OP 170 DO 10.1136/flgastro-2021-102013 VO 14 IS 2 A1 Anna Jones A1 Kay Rodgers A1 Debbie Jeffrey A1 Waqas I Ali A1 HJN Andreyev YR 2023 UL http://fg.bmj.com/content/14/2/167.abstract AB Immune checkpoint inhibition is the standard-of-care for many advanced cancers. Side effects of therapy may prevent optimal treatment of the cancer. Management of side effects is dominated by recommendations derived from oncological, not gastroenterological practice. We report a patient who developed pancreatic insufficiency during checkpoint inhibitor therapy with a programmed cell death receptor 1 inhibitor, nivolumab, which if not diagnosed would have prevented ongoing treatment. This is a problem which affects approximately 1 in 100 patients treated with this agent but is rarely recognised. Gastroenterologists need to be aware of the spectrum of gastrointestinal disorders which occur after immunotherapy to treat cancer.