Obesity & OverweightNCT07570576
Front-of-package Warning Labels for Sugar Content in Sugar-sweetened Beverages
A study testing UK-style traffic light labels, Chile-style octagonal labels and text warning labels in people with Obesity & Overweight, run by Chinese University of Hong Kong.
Trial summary
The goal of this online randomized trial is to examine the effectiveness of Front-of-package (FOP) warning labels for added sugar content on the intent-to-purchases of SSBs in an affluent Asian setting. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Obesity & Overweight
- What is being tested?
- UK-style traffic light labels, Chile-style octagonal labels and text warning labels
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 2,800 participants
- Where
- No sites listed yet
- Study dates
- 1 May 2026to 30 Apr 2028
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Hong Kong residents aged 18 years or older and be able to understand either English or Chinese
Who cannot join
- Refuse to provide informed consent
- Failing an attention check, defined as an incorrect response to a multiple-choice question asking "What month is it currently?",
- Implausibly short completion times, defined as completing the survey in less than 133 seconds, which corresponds to half of the median completion time observed in pilot data
About this study
Official title: Front-of-package Warning Labels for Sugar Content in Sugar-sweetened Beverages: An Online Randomized Experiment
The goal of this online randomized trial is to examine the effectiveness of Front-of-package (FOP) warning labels for added sugar content on the intent-to-purchases of SSBs in an affluent Asian setting. We hypothesize the FOP warning labels are significantly associated with a reduction of consumers' purchase intention of sugar-sweetened beverages (SSBs).
- Conditions
- Obesity & Overweight
- Being tested
- UK-style traffic light labels, Chile-style octagonal labels, text warning labels, text-and-graphic warning labels, teaspoon labels
- Keywords
- sugar label, online trial, SSB
- Medical subject headings
- Obesity, Overweight
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
UK-style traffic light labelsOther
UK-style traffic light labels displaying "HIGH ADDED SUGAR" in a red circle, "MEDIUM ADDED SUGAR" in a yellow circle, "LOW ADDED SUGAR" in a green circle, or "ZERO ADDED SUGAR" in a green circle
Chile-style octagonal labelsOther
Chile-style octagonal labels displaying "HIGH ADDED SUGAR"
text warning labelsOther
text warning labels stating that drinking beverages with added sugar contributes to diabetes and tooth decay, applied to low-, medium-, and high-added-sugar beverages
text-and-graphic warning labelsOther
text-and-graphic warning labels displaying the same message as the text warning label with simple graphics representing diabetes and tooth decay, applied to low-, medium-, and high-added-sugar beverages
teaspoon labelsOther
teaspoon labels showing the number of teaspoons of added sugar per 100 mL, applied to all added-sugar levels
Hong Kong-style labelsOther
Hong Kong-style labels, adapted from the voluntary "Salt / Sugar" Label Scheme for prepackaged food products, displaying "LOW SUGAR" or "NO SUGAR" inside a diamond shape with a tick mark at the bottom
| Study group | Role | What they receive |
|---|---|---|
| no label (control) | No intervention | Not described |
| Hong Kong-style labels | Active comparator | Not described Receives: Other: Hong Kong-style labels |
| UK-style traffic light labels | Experimental | Not described Receives: Other: UK-style traffic light labels |
| Chile-style octagonal labels | Experimental | Not described Receives: Other: Chile-style octagonal labels |
| text warning labels | Experimental | Not described Receives: Other: text warning labels |
| text-and-graphic warning labels | Experimental | Not described Receives: Other: text-and-graphic warning labels |
| teaspoon labels | Experimental | Not described Receives: Other: teaspoon labels |
What is being measured
The primary outcome is the main question the study is designed to answer.
Proportion of the participant selects a sugar-sweetened beverage in the beverage choice task
Measured: Enrollment
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 May 2026
- Study start1 May 2026 (estimated)
- Primary completion30 Apr 2027 (estimated)
- Study completion30 Apr 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Obesity & OverweightStudies of the same condition, open and under way.
- More trials run by Chinese University of Hong KongThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Health services research
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 2,800 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Chinese University of Hong Kong
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Marc Chong, Chinese University of Hong Kong
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07570576
- Sponsor's protocol ID
- SBRE-24-0209
- Status last verified
- May 2026
- First submitted
- 30 Apr 2026
- Last updated
- 12 May 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 12 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Front-of-package Warning Labels for Sugar Content in Sugar-sweetened Beverages: An Online Randomized Experiment
- ClinicalTrials.gov ID
- NCT07570576
- Acronym / sponsor ID
- SBRE-24-0209
- Conditions
- Obesity & Overweight
- Keywords
- sugar label, online trial, SSB
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 2,800 participants (estimated)
- Lead sponsor
- Chinese University of Hong KongUniversity, hospital or other
- Study start
- 1 May 2026 (estimated)
- Primary completion
- 30 Apr 2027 (estimated)
- Study completion
- 30 Apr 2028 (estimated)
- First posted
- 6 May 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The goal of this online randomized trial is to examine the effectiveness of Front-of-package (FOP) warning labels for added sugar content on the intent-to-purchases of SSBs in an affluent Asian setting. We hypothesize the FOP warning labels are significantly associated with a reduction of consumers' purchase intention of sugar-sweetened beverages (SSBs).
Study design
- Primary purpose
- Health services research
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 7
| Arm | Type | Receives |
|---|---|---|
| no label (control) | No intervention | – |
| Hong Kong-style labels | Active comparator | Other: Hong Kong-style labels |
| UK-style traffic light labels | Experimental | Other: UK-style traffic light labels |
| Chile-style octagonal labels | Experimental | Other: Chile-style octagonal labels |
| text warning labels | Experimental | Other: text warning labels |
| text-and-graphic warning labels | Experimental | Other: text-and-graphic warning labels |
| teaspoon labels | Experimental | Other: teaspoon labels |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- Hong Kong residents aged 18 years or older and be able to understand either English or Chinese
Key exclusion criteria (3 listed)
- Refuse to provide informed consent
- Failing an attention check, defined as an incorrect response to a multiple-choice question asking "What month is it currently?",
- Implausibly short completion times, defined as completing the survey in less than 133 seconds, which corresponds to half of the median completion time observed in pilot data
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| UK-style traffic light labelsUK-style traffic light labels displaying "HIGH ADDED SUGAR" in a red circle, "MEDIUM ADDED SUGAR" in a yellow circle, "LOW ADDED SUGAR" in a green circle, or "ZERO ADDED SUGAR" in a green circle | Other | UK-style traffic light labels |
| Chile-style octagonal labelsChile-style octagonal labels displaying "HIGH ADDED SUGAR" | Other | Chile-style octagonal labels |
| text warning labelstext warning labels stating that drinking beverages with added sugar contributes to diabetes and tooth decay, applied to low-, medium-, and high-added-sugar beverages | Other | text warning labels |
| text-and-graphic warning labelstext-and-graphic warning labels displaying the same message as the text warning label with simple graphics representing diabetes and tooth decay, applied to low-, medium-, and high-added-sugar beverages | Other | text-and-graphic warning labels |
| teaspoon labelsteaspoon labels showing the number of teaspoons of added sugar per 100 mL, applied to all added-sugar levels | Other | teaspoon labels |
| Hong Kong-style labelsHong Kong-style labels, adapted from the voluntary "Salt / Sugar" Label Scheme for prepackaged food products, displaying "LOW SUGAR" or "NO SUGAR" inside a diamond shape with a tick mark at the bottom | Other | Hong Kong-style labels |
Primary outcome
Proportion of the participant selects a sugar-sweetened beverage in the beverage choice task
Time frame: Enrollment
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 May 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
The record lists no contact. Use the official record to reach the sponsor.
Questions about this trial
What is this clinical trial studying?
A study testing UK-style traffic light labels, Chile-style octagonal labels and text warning labels in people with Obesity & Overweight, run by Chinese University of Hong Kong.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: opening soon, as of the sponsor's last update on 12 May 2026. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Proportion of the participant selects a sugar-sweetened beverage in the beverage choice task (time frame: Enrollment). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 May 2026.