CLYBL and encephalopathy, progressive, early-onset, with brain edema and/or leukoencephalopathy: We analyzed AEs and efficacy at M1 (month 1), M2, and M6, comparing two sets of subgroups: Dravet syndrome (DS) vs. Lennox-Gastaut (LGS) and patients with clobazam (CLB+) vs. patients without (CLB−).