AAT-App+: A double-blind, pilot randomised controlled trial of a novel personalised smartphone intervention to reduce hazardous and harmful alcohol consumption among middle–older adults

Personalised smartphone ApBM is feasible and acceptable to middle-to-older adults, but we found no evidence to suggest it reduced alcohol consumption any more than sham-training beyond the acute period. Further work is needed prior to large-scale RCT progression to mitigate attrition and optimise study design.