[P1–053]: CHANGE FROM BASELINE IN CLINICAL DEMENTIA RATING SCALE COGNITIVE AND FUNCTIONAL DOMAINS IN PRIME, A RANDOMIZED PHASE 1B STUDY OF THE ANTI–AMYLOID BETA MONOCLONAL ANTIBODY ADUCANUMAB (BIIB037). (1st July 2017) - Viglietta, Vissia; O'Gorman, John; Williams, Leslie; Chen, Tianle; Enayetallah, Ahmed; Hock, Christoph; Nitsch, Roger M.; Haeberlein, Samantha Budd; Sandrock, Alfred