The NORAPS trial, a double-blind, randomized crossover study, evaluates atomoxetine's safety and efficacy in PSP patients with apathy and impulsivity. Presented at the 2024 MDS Congress, the study aims to enroll 84 participants, focusing on challenging-behaviors subscale of the Cambridge Behavioral Inventory. Led by Robert Durcan, PhD, the trial includes an 8-week treatment period, a 2-week washout, and a crossover phase, excluding those with cardiac issues or on other noradrenergic treatments. Research suggests noradrenaline axis impairments in PSP correlate with worse prognosis, highlighting the need for noradrenergic restoration as a potential treatment.