[Update on Treatment of Large Vessel Vasculitides]

Giant cell arteritis (GCA) and Takayasu arteritis (TAK) are the predominant types of large-vessel vasculitis, sharing IL-6-mediated immunopathology but differing in age profile and clinical phenotype. Glucocorticoids (GC) remain standard for induction therapy, although relapse rates and treatment-associated toxicity on GC monotherapy are high. Therefore, current guidelines support early tapering and the use of GC-sparing agents in relapsing or high-risk patients. Tocilizumab is now established as standard therapy in GCA, while methotrexate remains an alternative option. Recently, the janus kinase (JAK) inhibitor upadacitinib has gained regulatory approval for GCA, supported by results of a phase 3 trial. In TAK, conventional immunosuppressants are used in new-onset disease, while TNF-alpha or IL-6-blockade can be considered in relapsing or refractory disease. Optimal duration of treatment is not yet well defined.