Effectiveness of a Self-health Assessment Mobile Application in Young-to-midlife Adults in Hong Kong

NCT07720245 | Recruiting DMC

• 1 other identifier: 07220148
• Study Type: interventional
• Target: 574
• Locations: 1 country
• Sites: 1

Brief Summary

This project aims to compare the effectiveness of Wellnuts, an evidence-based, algorithm-driven self-health assessment mobile application, in empowering asymptomatic young-to-midlife adults in Hong Kong, promoting health awareness, and improving health-seeking behaviour and linkage-to-care, compared with conventional web-based health resources. Participants will be randomly allocated to the mobile health intervention group (Wellnuts app with self-health assessment and health information) and the conventional web-based resources control group (health information from Centre for Health Protection website). Hopefully, population health will be improved with the general health promotion impact from the app.

Conditions

Diabetes Risk; CVD Risk; Colorectal Cancer; Lung Cancer; HBV

Keywords

Self-health assessment; Mobile application; Health awareness; Health empowerment; Linkage-to-care; Chronic disease; Randomised control trial; Hong Kong

Outcome Measures

Primary Outcomes (1)

• Proportion of participants who sought medical assistance

  3 months and 6 months

Secondary Outcomes (3)

• Proportion of healthy lifestyle behaviours

  3 months and 6 months

• Proportion of participants who attended the follow-up tests after being assessed as "at risk" by the mobile app

  3 months and 6 months

• Level of satisfaction with the project

  3 months and 6 months

Other Outcomes (1)

• Level of patient empowerment

  6 months

Study Arms (2)

Intervention group

EXPERIMENTAL

Participants allocated to the intervention group will use the Wellnuts mobile application.

Other: Wellnuts app intervention

Control group

ACTIVE COMPARATOR

Participants allocated to the control group will receive access to conventional web-based health resources from the Centre for Health Protection website which is run by the Department of Health.

Other: Web-based health resources

Interventions

Wellnuts app intervention OTHER

The app adopts an evidence-based and algorithm-driven self-health assessment approach. It is designed to help participants assess their health risks, increase health awareness and encourage appropriate health-seeking behaviour. The app provides self-health assessment related to common health conditions and modifiable behavioural risk factors. Participants assessed as "at-risk" are provided with relevant recommendations, including recommended tests and follow-up actions where appropriate.

Intervention group

Web-based health resources OTHER

Conventional web-based health resources are from the Centre for Health Protection website which was run by the Department of Health (https://www.chp.gov.hk/en/healthtopics/25/index.html). These resources provide general health information and links to relevant support groups.

Control group

Eligibility Criteria

• Age: 25 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Hong Kong residents self-reported age of 25-65 years;
• Possesses a smartphone capable of running mobile apps (e.g. Android or iPhone) and;
• Able to read either English or Chinese.

You may not qualify if:

• Individuals having any symptoms or feeling unwell in anyways as detailed in the Disclaimer at the launch of the app; or
• Individuals reporting a current diagnosis of cardiovascular disease, lung cancer, hepatitis B, colorectal cancer, diabetes, sexually transmitted diseases, depression, anxiety and mild cognitive impairment and memory loss.

Sponsors & Collaborators

• The University of Hong Kong: lead

Study Sites (1)

District Health Centre/Expresses (DHC/E) in Yau Tsim Mong, Sha Tin and Kwai Tsing

Hong Kong, Hong Kong

RECRUITING

MeSH Terms

Conditions

Colorectal Neoplasms; Lung Neoplasms; Chronic Disease

Condition Hierarchy (Ancestors)

Intestinal Neoplasms; Gastrointestinal Neoplasms; Digestive System Neoplasms; Neoplasms by Site; Neoplasms; Digestive System Diseases; Gastrointestinal Diseases; Colonic Diseases; Intestinal Diseases; Rectal Diseases; Respiratory Tract Neoplasms; Thoracic Neoplasms; Lung Diseases; Respiratory Tract Diseases; Disease Attributes; Pathologic Processes; Pathological Conditions, Signs and Symptoms

Study Officials

• William Chi Wai Wong, MD

  The University of Hong Kong

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Levon Yongle Zhan, PhD

CONTACT

852-25185656; levon@hku.hk

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Clinical Professor

Study Record Dates

• First Submitted: July 10, 2026
• First Posted: July 22, 2026
• Study Start: June 1, 2024
• Primary Completion (Estimated): September 30, 2026
• Study Completion (Estimated): March 31, 2027
• Last Updated: July 22, 2026

Record last verified: 2026-07

Data Sharing

• IPD Sharing: Will not share

Locations

HK (1)