P11: IXAZOMIB WITH CYCLOPHOSPHAMIDE AND DEXAMETHASONE IN RELAPSED OR REFRACTORY MYELOMA: MUKEIGHT PHASE II RANDOMISED CONTROLLED TRIAL RESULTS. (5th April 2022) - Auner, H; Brown, S; Walker, K; Kendall, J; Dawkins, B; Meads, D; Morgan, G; Kaiser, M; Cook, M; Roberts, S; Parrish, C; Cook, G