S180: RG6234, A NOVEL GPRC5D T-CELL ENGAGING BISPECIFIC ANTIBODY, INDUCES RAPID RESPONSES IN PATIENTS WITH RELAPSED/REFRACTORY MULTIPLE MYELOMA: PRELIMINARY RESULTS FROM A FIRST-IN-HUMAN TRIAL. (23rd June 2022) - Hasselbalch Riley, C.; Hutchings, M.; Yoon, S.-S.; Koh, Y.; Manier, S.; Facon, T.; Harrison, S. J.; Er, J.; Volzone, F.; Pinto, A.; Montes, C.; Ocio, E. M.; et al.