Efficacy and Safety of Belimumab in Subjects With Primary Sjögren's Syndrome

Sjögren's syndrome (SS) is a systemic autoimmune disease characterized by an increase in BAFF (BLyS) levels and a resulting B cell hyperactivity. B cells are involved in the pathogenesis of SS in both systemic and glandular features, and B cell downregulation may lead to a decrease of disease activity. Moreover, pathogenesis of SS is closed to that of Systemic lupus erythematosus, where Belimumab has been proven to be effective.