Disease activity over time in autoantibody-positive patients treated with belimumab. Disease activity over time in autoantibody-positive patients treated with belimumab. (A) Systemic Lupus Erythematosus (SLE) Responder Index response rate; (B) annual frequency of flares measured by modified SLE Flare Index (mild-moderate and/or severe); (C) annual frequency of 1 new British Isles Lupus Assessment Group (BILAG) A or 2 new B scores; (D) mean percentage change in Physician’s Global Assessment (PGA) from baseline. *Includes patients originally randomized to belimumab or to placebo and switched to belimumab; patients randomized to placebo are included from first belimumab exposure; data through Year 2 include patients originally randomized to placebo or belimumab 1 or 4 mg/kg who were switched to 10 mg/kg at Week 56. †No. patients with assessments in interval. Ellen M. Ginzler et al. J Rheumatol 2014;41:300-309 ©2014 by The Journal of Rheumatology