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Research on the Needs, Feasibility, and Intervention Effects of AI Health Coach-based Just-in-Time Adaptive Intervention (JITAI) in Weight Management for Overweight/Obese Adults

NCT07682571 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 31

Last updated 2026-07-06

No results posted yet for this study

Summary

This pilot study evaluates the needs, feasibility, and preliminary effects of an artificial intelligence (AI) health coach-based just-in-time adaptive intervention for weight management in adults with overweight or obesity.

Participants receive a wearable device and use a WeChat-based platform during the intervention period. The system collects wearable data and self-reported information, and provides timely behavior-change support related to physical activity, sedentary behavior, sleep, diet self-monitoring, and weight-management self-regulation. The AI health coach provides conversational support and personalized suggestions based on predefined intervention rules and participant inputs.

The main purpose of this study is to assess whether this AI-supported intervention is feasible and acceptable for adults with overweight or obesity. The study also explores changes in weight-related outcomes, health behaviors, self-efficacy, sleep, and quality of life before and after the intervention.

Conditions

  • Overweight , Obesity

Interventions

BEHAVIORAL

AI Health Coach-based Just-in-Time Adaptive Intervention

The intervention provided timely behavior-change support for weight management through an AI health coach delivered via a WeChat-based platform. The system used wearable device data and participant inputs to support physical activity, sedentary behavior reduction, sleep-related routines, dietary self-monitoring, and self-regulation. Participants received conversational guidance, encouragement, and personalized suggestions based on predefined intervention rules and participant data.

Sponsors & Collaborators

  • The Fourth Affiliated Hospital of Zhejiang University School of Medicine

    lead OTHER

Principal Investigators

  • Jie Yu, Master · 4th Affiliated Hospital, School of Medicine, Zhejiang University, China

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-03-01
Primary Completion
2026-05-15
Completion
2026-05-15

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07682571 on ClinicalTrials.gov