Changes in FACT-G total and BMTS scores in adults in the primary efficacy set after exa-cel infusion. (A) Mean change from baseline by study visit in FACT-G total score. (B) Mean change from baseline by study visit in BMTS. Red lines in figures depict the established MCID range. Error bars indicate the standard error of the mean. Baseline is defined as the most recent nonmissing measurement (scheduled or unscheduled) collected before the start of mobilization. BL, baseline; M, month; SE, standard error.