P941: SAFETY AND CLINICAL ACTIVITY OF BELANTAMAB MAFODOTIN WITH LENALIDOMIDE PLUS DEXAMETHASONE IN PATIENTS WITH RELAPSED/REFRACTORY MULTIPLE MYELOMA (RRMM): DREAMM-6 ARM-A INTERIM ANALYSIS - H. Quach; M. Gironella; C. Lee; R. Popat; P. Cannell; R. S. Kasinathan; B. Chopra; R. Rogers; G. Ferron-Brady; S. Shafi-Harji; N. Patel; J. Opalinska; et al. (HemaSphere, 2022)