Mobile app support to help adults with overweight or obesity manage weight
Tests a phone-based weight program against general health advice in adults with overweight or obesity.
Plain-language title generated from the registry record
Registry title: An Innovative Care Model Integrating Mobile Health Support to Promote Weight Management in Adults With Overweight or Obesity
Key facts
- Where
- Hong Kong, Hong KongSee the 3 sites
Where in Hong Kong
- Aberdeen Kaifong Welfare AssociationHong Kong, Hong KongNo longer taking part
- Haven of Hope Christian ServiceHong Kong, Hong KongNo longer taking part
- Hong Kong Sheng Kung Hui Welfare CouncilHong Kong, Hong KongNo longer taking part
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Trial details
- Who runs it
- The University of Hong Kong
- Trial code
- NCT06996431
- Record updated
- 11 June 2025
- Original description
The objective of this clinical trial is to evaluate whether an innovative care model integrating mobile health (mHealth) support improves weight management in adults with overweight or obesity. The primary research questions are: (1) Does the intervention promote weight change at the 6-month follow-up? (2) Does the intervention enhance physical activity and encourage a healthy diet at the 3- and 6-month follow-ups?Read full original descriptionShow less
Development and Effectiveness of an Innovative Care Model Integrating Mobile Health Support to Promote Weight Management in Adults With Overweight or Obesity: A Stepped-wedge Cluster Randomized Controlled Trial
The objective of this clinical trial is to evaluate whether an innovative care model integrating mobile health (mHealth) support improves weight management in adults with overweight or obesity. The primary research questions are: (1) Does the intervention promote weight change at the 6-month follow-up? (2) Does the intervention enhance physical activity and encourage a healthy diet at the 3- and 6-month follow-ups?
To address these questions, researchers will compare the intervention group with a control group to measure changes in weight, physical activity, and dietary habits.
At baseline, all participants will complete a survey assessing demographics, body weight, height, central obesity, lifestyle, weight loss history, and expectations. The intervention group will receive a weight management program based on Ecological Momentary Assessment (EMA), incorporating risk-stratified health services, with follow- ups at 3 and 6 months. The control group will receive minimal intervention in the form of general health advice, with follow-ups at the same intervals.
Inclusion: Hong Kong residents aged ≥18 years; able to read and communicate in Chinese; own a smartphone with internet access; have good mobility alone without gait aid; body mass index ≥ 23.0; and no contraindication for physical activity as evidenced by: If aged < 70: do not meet any criteria in PAR-Q, or sign declaration of having medical clearance if meet any criteria in PAR-Q; If aged ≥ 70: sign the declaration about conducting physical activity frequently or having medical clearance.
Exclusion: currently receiving treatment for any cancer (active cancer patients) or cancer survivor of any GI cancers (e.g. colorectal cancer, stomach cancer); have previous diagnosis of eating disorder; currently receiving intensive diet or exercise treatment; Have a terminal illness (e.g., advanced cancer, dementia, pulmonary, neurological, motor-neuron, and advanced cardiovascular disease) or with a life expectancy of less than 6 months; have current diagnosis of psychiatric disorder; have diagnoses of gastrointestinal conditions (e.g. Irritable Bowel Syndrome, Ulcerative Colitis, Crohn's Disease, Coeliac Disease); have clinical obesity (e.g. confirmation of excess body fat plus limitations of day-to-day activities or signs or symptoms of obesity-related organ dysfunction). Examples of obesity-related organ dysfunction include NAFLD with hepatic fibrosis, the cluster of hyperglycaemia, high triglyceride levels, and low HDL cholesterol levels. Examples of limitations of day-to-day activities include significant age-adjusted limitations of mobility and/or other basic ADL (e.g. bathing, dressing, toileting, continence, eating); lactating, pregnant or planning for pregnancy in the coming 6 months.