showed a trendP = 0.06
24 , 38 The same study showed a trend towards improvement of NPS on the UHDRS behavioral domain ( T 1,35 = 1.94, P = 0.06). 38 Open Label Studies Change in NPS composite score was a primary outcome in four open label studies. 41 , 42 , 43 , 45 All these studies reported a significant improvement of NPS (Table 3 ).