Soluble BCMA levels. sBCMA levels at baseline, by any prior anti-BCMA therapies (all treated analysis set, cohort C) (A), baseline by responder to any prior anti-BCMA treatment (all treated analysis set, cohort C) (B); and percent change from baseline in sBCMA level at cycle 4 day 1 by best response as assessed by independent review committee (C). The box plots display boxes in which the top sides are quantile 3 (Q3), the center lines are median, and the bottom sides are Q1. The means are displayed as diamonds in Figure 5C. The lines extending above and below the boxes go to the maximum and minimum values that are within the upper (Q3 + 1.5 × interquartile range [IQR]) and lower fence (Q1 – 1.5 × IQR). Data points beyond the fences represent outlier values.