P1453: STABLE TRANSDUCTION OF FETAL HEMOGLOBIN IN PATIENTS WITH SICKLE CELL DISEASE IN THE PHASE 1/2 MOMENTUM STUDY OF ARU-1801 GENE THERAPY AND REDUCED INTENSITY CONDITIONING. (23rd June 2022) - Grimley, M.; Kent, M.; Asnani, M.; Shrestha, A.; Felker, S.; Lutzko, C.; Arumugam, P.; Witting, S.; Knight-Madden, J.; Niss, O.; Quinn, C.; Lo, C.; et al.