RecruitingPhase 3Drug trialA Study of Donanemab (LY3002813) in Participants Who Completed Study AACM (TRAILBLAZER-ALZ 3-EXT).The main purpose of this study is to determine if participants who previously took donanemab get clinical benefit when they receive annual doses. For each participant, the study will last up to 2.5 years and will include 6 visits.