For maintenance, patients were stratified based on cytogenetics (high-risk cytogenetics included deletion 17p, gain of 1q, and translocations t(4:14), t(14;16), t(14;20))….Of the 47 patients evaluable for response after 4 cycles, the ORR was 100% and 89% (42/47) achieved a very good partial response (VGPR) or better and 40% (19/47) a CR....Early data suggest that Isa-KRd induces deep responses in patients with NDMM.