ACM at month 9 among patients with Mayo stage IV AL amyloidosis. (A) Kaplan-Meier estimate of ACM, with data censored at 9 months and (B) Forest plot of ACM at month 9 adjusted for baseline characteristics in patients with Mayo stage IV AL amyloidosis. HR and 90% 2-sided CIs were estimated from the semiparametric Cox regression model stratified by randomization strata (ie, renal stage I vs II/III, and 6MWT distance), and with baseline variables including age, sex, race, ethnicity, age at diagnosis, duration since diagnosis, NT-proBNP, dFLC, FLC, New York Heart Association (NYHA) class, troponin T, and 6MWT distance added separately. All baseline variables except for categorical variables (ie, sex, race, ethnicity, and NYHA class) are adjusted as continuous variables.