Treatment strategies in giant cell arteritis and polymyalgia rheumatica: beyond glucocorticoids

Giant cell arteritis (GCA) and polymyalgia rheumatica (PMR) are closely related chronic inflammatory conditions. Glucocorticoids remain the cornerstone of treatment for both conditions, as they rapidly control inflammation and also reduce the risk of ischaemic complications in GCA. However, glucocorticoid therapy is often prolonged and associated with substantial treatment-related morbidity. In addition, many patients experience relapses during glucocorticoid maintenance therapy and can accrue vascular damage. Advances in understanding the immunopathology of GCA and PMR have led to the development of targeted therapies, particularly agents inhibiting the IL-6 pathway and, more recently, Janus kinase (JAK) signalling. IL-6 receptor inhibitors reduce the risk of disease relapse and allow for reduction in glucocorticoid use in both GCA and PMR, and JAK inhibition enables glucocorticoid sparing and lowers the risk of relapse in GCA. Optimal management of GCA and PMR requires close monitoring, careful assessment of disease activity and treatment-related toxicity, as well as individualized therapeutic strategies. Ongoing research continues to refine treatment algorithms and could help to define therapeutic targets across GCA and PMR. Emerging therapeutic options and evolving treatment algorithms reflect the dynamic and patient-centred nature of advancements in GCA and PMR management.