Importantly, longer dosing intervals reduced infection rates for all-grade infections (from 6.08 infections per patient-year during weekly dosing to 2.25 infections per patient-year during bimonthly dosing) and for severe infections (from 0.81 infections per patient-year during weekly dosing to 0.1 per patient-year during bimonthly dosing). These results underline the importance of the assessment of annualized infection rates to reflect the true infectious burden in patients who were treated with BCMA-directed BsAbs.