P975: INTERIM ANALYSIS OF PHASE II STUDY OF DARATUMUMAB IN COMBINATION WITH BORTEZOMIB AND DEXAMETHASONE IN PATIENTS WITH MULTIPLE MYELOMA WHO RECEIVED 1 PRIOR LINE OF THERAPY (KMM1906). (23rd June 2022) - Yoo, K. H.; Gang, G. W.; Yi, J. H.; Kim, M. K.; Kim, H. J.; Kim, S.-H.; Park, J. S.; Lee, J.-J.; Min, C.-K.; Lee, J. H.; Cho, D.; Kim, K.