P888: REPLACING STEROIDS IN TRANSPLANT-INELIGIBLE MULTIPLE MYELOMA: THE PHASE 2 ISATUXIMAB-BORTEZOMIB-LENALIDOMIDE-DEXAMETHASONE REST STUDY. (23rd June 2022) - Askeland, F. B.; Haukås, E.; Slørdahl, T. S.; Schjøll, D.; Lysen, A.; Hermansen, E.; Schjesvold, F.