Figure 5. Median belimumab serum concentration by week (PK population). Minimum and maximum values: week 1 (0, 504.29 µg/mL), week 2 (17.47, 467.86 µg/mL), week 4 (34.41, 278.27 µg/mL), week 8 (30.19, 296.47 µg/mL). Dashed line: lower limit of quantification (0.1 µg/mL). PK = pharmacokinetic.