P940: SAFETY AND CLINICAL ACTIVITY OF BELANTAMAB MAFODOTIN WITH PEMBROLIZUMAB IN PATIENTS WITH RELAPSED/REFRACTORY MULTIPLE MYELOMA (RRMM): DREAMM-4 STUDY. (23rd June 2022) - Suvannasankha, A.; Bahlis, N.; Trudel, S.; Weisel, K.; Koenecke, C.; Oriol, A.; Voorhees, P. M.; Alonso, A. A.; Callander, N. S.; Mateos Manteca, M. V.; Reddy, N.; Hakim, S.; et al.