Workplace Health Promotion "So Healthy, Lose 99" Weight Loss Activity

March 6, 2026 updated by: China Medical University Hospital

Obesity has become one of the global health problems. According to the World Health Organization, obesity not only affects an individual's physical health, but also increases the risk of multiple chronic diseases, cardiovascular and metabolic health problems.

According to the health examination results of all hospital employees, there are many people with high body mass index. In order to increase employees' emphasis on health management, we held a weight loss competition to evaluate the effectiveness of So99 App. We hope to create a healthy workplace culture and reduce obesity-related risks through healthy eating, regular exercise and teamwork.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

518

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Taiwan
      • Taichung, Taiwan, 407
        • China Medical University Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  1. Employees of China Medical University Hospital
  2. Aged 20 to 64
  3. Body Mass Index (BMI) ≥ 27 (kg/ m²)

Exclusion Criteria:

  1. Pregnant women or those planning to become pregnant
  2. Individuals with a history of liver or kidney dysfunction, cardiovascular disease, stroke, or cancer
  3. Individuals before or after major surgery
  4. Individuals with severe mental or neurological disorders

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: So99 group: Use the So99 app for daily health records and app activities
Behavioral: Use the So99 app for daily health records and app activities
Use the So99 app for daily health records and app activities
No Intervention: 94So group

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Percent (%) change from baseline in body weight
Time Frame: 12 weeks
12 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

China Medical University Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 31, 2025

Primary Completion (Actual)

September 24, 2025

Study Completion (Actual)

February 14, 2026

Study Registration Dates

First Submitted

March 6, 2026

First Submitted That Met QC Criteria

March 6, 2026

First Posted (Actual)

March 11, 2026

Study Record Updates

Last Update Posted (Actual)

March 11, 2026

Last Update Submitted That Met QC Criteria

March 6, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CMUH114-REC1-033

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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