Ratio of bone marrow aspirate (whole bone marrow matrix) to PB CD3 + cell matrix concentrations of ide-cel on day 14 postinfusion by DOR. DOR was binned as 0–6, 6–12, 12–18 and 18 months. Duration of deep pharmacodynamic response was defined by the last visit at which sBCMA levels were less than the median nadir (4692 ng l -1 ): >18 months, n = 3; 12–18 months, n = 7; 6–12 months, n = 7; <6 months, n = 9; NR, n = 8. BM, bone marrow; IQR, interquartile range; NR, nonresponder. Box and whisker plots are provided, whereby the center horizontal line denotes the median, and the box denotes the IQR (25th–75th percentiles). The upper whisker extends to the maximum value, but no further than 1.5 IQR above the 75th percentile, and the lower whisker extends to the minimum value, but no lower than 1.5 IQR below the 25th percentile. Data beyond 1.5 IQR from the 25th or 75th percentiles, respectively, are plotted individually as outlying points.