RT Journal Article SR Electronic T1 Cancer immunotherapy and the management of side effects JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 56 OP 60 DO 10.7861/clinmed.2022-0589 VO 23 IS 1 A1 Preethika Mahalingam A1 Thomas Newsom-Davis YR 2023 UL http://www.rcpjournals.org/content/23/1/56.abstract AB The use of cancer immunotherapies such as immune checkpoint inhibitors (ICIs) has been a paradigm shift in harnessing the immune system to act against cancer cells, and transformed the treatment of several solid and haematological malignancies. Cancer immunotherapies have a unique toxicity profile dependent on their mechanism of action, related to upregulation of immune activity. These can be severe and lead to life-threatening organ toxicity, and therefore identification of at-risk patient groups, early detection and prompt initiation of steroids and other immune-modulating agents is imperative. Acute presentations with toxicity related to these agents comprise a significant proportion of primary and secondary care presentations related to treatment toxicity in oncology. This article will focus on the diagnosis and management of common toxicities associated with immune checkpoint inhibitors, the most commonly utilised cancer immunotherapies.