A somber Kevin Gorman was brutally honest with analysts Wednesday, advising them to remove Tourette syndrome (TS) from their Neurocrine Biosciences Inc. model after Ingrezza (valbenazine) missed the primary endpoint of change from baseline to week 12 in Yale Global Tic Severity Scale (YGTSS) score among children and adolescents with moderate to severe symptoms enrolled in the phase IIb T-Force GOLD study.