Canadian Rheumatology Association/Canadian Research Group of Rheumatology in Immuno-Oncology Living Guidelines for Baseline Immunosuppression in Individuals With Preexisting Rheumatic Diseases Initiating Immune Checkpoint Inhibitors. Part 2: Preexisting Systemic Autoimmune Rheumatic Diseases

Although immune checkpoint inhibitors (ICIs) are increasingly used in patients with preexisting systemic autoimmune rheumatic diseases (SARDs), a key concern is whether baseline immunosuppression at the start of ICI treatment might negatively affect cancer outcomes. This risk must be carefully weighed against the potential for a SARD flare. The objective of this study was to develop a living guideline that will provide up-to-date guidance on the management of baseline immunosuppression for preexisting SARDs when initiating cancer immunotherapy with ICIs.