The U.S. POINTER study, a $50 million phase 3 randomized controlled trial, found that both structured and self-guided lifestyle interventions improved cognition in older adults at risk for dementia over two years.
Participants in the structured intervention group showed statistically significantly greater improvements in global cognitive composite scores compared to the self-guided group (0.029 SD per year, P = .0008).
The structured program involved 38 guided peer meetings with specific goals for exercise, MIND diet adherence, cognitive training, and regular clinician check-ins, while the self-guided group attended only 6 meetings.
The trial enrolled 2,111 diverse participants with 89% retention, including 30% from ethnoracial minority groups and 30% APOE-e4 carriers at higher risk for neurodegenerative disorders.