Fig. 2

Probability of experiencing an SFI flare before week 52 (ITT population). Median survival time is the time at which the curve crosses 0.5; if the curve does not cross 0.5, the median is not defined; all data are presented relative to time 0; for the restart phase, time 0 is the time when the patient re-initiated belimumab treatment post-week 24 in the study. ITT, intention-to-treat; LTD, long-term discontinuation; SFI, SELENA-SLEDAI Flare Index; SELENA, Safety of Estrogens in Lupus Erythematosus National Assessment; TC, treatment continuation; TH, treatment holiday