[Lights and Shadows of Lecanemab: Post-diagnosis Support for People with Dementia Receiving Early Diagnosis].

The advent of lecanemab is a hope not only for people with dementia and their families but also for society as a whole. However, the effectiveness of lecanemab is limited, and the need to inform patients of their dementia may emphasize negative aspects more than ever as "early diagnosis leads to early despair." In this situation, it is important to provide post-diagnostic support to make the "time spent living with dementia," which is prolonged by lecanemab, as meaningful as possible. In this review, the authors introduce the "Peer Support Activities for people with mild dementia and their families," a post-diagnosis support program for those diagnosed early in the course of the disease.