MON-673 - An AI-Enabled Mobile Health Intervention using Personalized Nudges and Family Engagement for Type 2 Diabetes: A Prospective Pilot Study

Aims
Type 2 diabetes mellitus (T2DM) remains a major global health burden, with many patients failing to achieve optimal glycemic control despite pharmacological and behavioral interventions. Family support is associated with improved diabetes self-management, yet evidence for scalable, family-based mobile health (mHealth) interventions remains limited. We evaluated the feasibility, acceptability, and preliminary metabolic and behavioral outcomes of an AI-enabled mHealth intervention incorporating family engagement.

Methods
This prospective 6-month pre–post study enrolled patients with T2DM (most recent HbA1c ≥7.0%) and a family member. Patients used a smartwatch-integrated mobile app featuring AI-enabled personalized nudges, smart logging, and diabetes education alongside usual care. Family members accessed a dedicated module with shared activity logs, educational resources, in-app communication, and collaborative goal setting functions. Primary outcomes were feasibility and acceptability. Secondary outcomes included HbA1c, medication adherence (Voils), moderate-to-vigorous physical activity (MVPA) minutes, Family and Friend Involvement in Adults’ Diabetes (FIAD), and Important Other Climate Questionnaire (IOCQ). Semi-structured interviews informed implementation evaluation.

Results
Fifty patient–family dyads (n=100) were enrolled; 58% of patients were male, and 60% of family members were females, with 72% spouses. Retention at 6 months was 99%. Mean HbA1c and medication adherence showed numerical improvement from baseline, though changes were not statistically significant (HbA1c p=0.318; adherence p=0.177). FIAD helpful involvement scores decreased post-intervention (p=0.024), while IOCQ scores increased (mean 5.93 vs 6.42; p=0.002), indicating enhanced autonomy-supportive engagement. In adjusted analyses, higher baseline HbA1c was associated with greater HbA1c reduction at 6 months (β=0.315, SE=0.124, p=0.015). Participants achieved a mean of 157.8 MVPA minutes/week (95% CI 121–194). Qualitative findings indicated high acceptability of AI-driven nudges for dietary self-management and perceived value of timely family support. Barriers included competing daily commitments, occasional patient–family tensions, and limited health literacy.

Conclusion
This AI-enabled, family-engaged mHealth intervention demonstrated high feasibility and acceptability in adults with T2DM, with signals suggesting benefit for self-management and glycemic outcomes. Findings support further refinement and evaluation in a randomized trial to determine clinical effectiveness and scalability.

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