Can a phone app and group chats help people avoid metabolic syndrome?
NCT ID NCT06169943
First seen Oct 16, 2026 · Last updated Oct 16, 2026
Summary
Researchers are testing a 3-month mobile health program that combines a smartphone app, group discussions, individual phone calls, and reminders. The trial enrolls 80 Chinese adults aged 45 and older in Hong Kong who have central obesity and are being treated for high blood pressure, cholesterol, or diabetes. The program aims to help participants exercise more and eat healthier. The study measures whether the program is practical and acceptable, and looks at early signs of change in physical activity and diet at 3 and 6 months.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- a 3-month mHealth social support program delivered through a mobile app, group discussions, phone calls, and reminders
- What this could lead to
- If it works, this could offer a low-cost, phone-based way to help people at risk of metabolic syndrome improve their diet and exercise habits.
- What could go wrong
- This is a small feasibility trial of 80 people, so it cannot prove the program works. Participants might not stick with the app or change their habits, and results may not apply to other groups.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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80 people
The number who actually took part.
- Started
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Nov 2024
- Finished
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Aug 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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45 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Chinese adults aged ≥ 45 years 2. With central obesity according to IDF criteria 3. Being treated of hypertension, dyslipidemia, or diabetes 4. Able to give informed consent 5. Attain at least 6 years of formal education 6. Have a smartphone with internet connection and able to use WhatsApp Exclusion Criteria: 1. Concurrently participating in another clinical trial, lifestyle/dietary intervention, or weight control program 2. Known history of psychiatric disorders
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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The Chinese University of Hong Kong
Shatin, Not Applicabnle., Hong Kong
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