O3‐10‐01: CORRELATION BETWEEN AMYLOID REDUCTION AND CLINICAL OUTCOMES: EXPLORATORY ANALYSES FROM THE GANTENERUMAB SCARLET ROAD AND MARGUERITE ROAD OPEN‐LABEL EXTENSION STUDIES. (1st July 2019) - Delmar, Paul; Kerchner, Geoffrey A.; Wang, Guoqiao; Bateman, Randall; Klein, Gregory; Rehal, Sunita; Voyle, Nicola; Andjelkovic, Mirjana; Abi-Saab, Danielle; Bullain, Szofia S.; Ristic, Smiljana; Baudler, Monika; et al.