Food ConsumptionNCT04955301
Consumers' Preference for Sustainable Food
A study testing Priming intervention in people with Food Consumption, run by The University of Hong Kong at 1 site in Hong Kong.
Trial summary
This study aims to test and compare the effectiveness of three priming interventions on consumers' selection of sustainable foods: priming with environmental benefits, health benefits and co-benefits (environment and health benefits). Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Food Consumption
- What is being tested?
- Priming intervention
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 1,000 participants
- Where
- 1 siteHong Kong
- Study dates
- 27 Sep 2022to 31 Dec 2023
- Phase
- Interventional
- Are there results?
- None posted in the registry
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
- Subjects should be aged 18 years or above
- Hong Kong residents
- Be able to read Chinese
Who cannot join
- Subjects who have vegan or vegetarian diets
- Subjects who have to follow special diets due to illnesses will be excluded.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Can we Prime Sustainable Food Choice? A Mix-methods Study
This study aims to test and compare the effectiveness of three priming interventions on consumers' selection of sustainable foods: priming with environmental benefits, health benefits and co-benefits (environment and health benefits).
- Conditions
- Food Consumption
- Being tested
- Priming intervention
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Priming interventionBehavioural
The priming manipulation will be embedded in one discrete choice experiment to test the effect of three priming interventions: priming with health benefits, environment benefits, and co-benefits of having sustainable diets, respectively, on consumers' preference for sustainable foods, and the relative importance of proximal attributes (e.g. taste and price) and distant attributes (e.g., attributes related to environmental sustainability) in determining food choice preference, as well as testing whether the effects of these three priming interventions can be modified by consumers' social orientation values. The cueing manipulation will be achieved by asking participants to complete a word-search exercise.
| Study group | Role | What they receive |
|---|---|---|
| Control message group | No intervention | Participants will not receive the priming manipulation. |
| Health benefits priming group | Experimental | Participants will be cueing with health benefits by asking to do a word-search exercise beginning with: "In the following, please choose words/statements that can indicate that having a healthy and sustainable diet can have health benefits, such as..." Receives: Behavioral: Priming intervention |
| Environmental benefits priming group | Experimental | Participants will be cueing with environmental benefits by asking to do a word-search exercise beginning with: "In the following, please choose words/statements that can indicate that having a healthy and sustainable diet can have environmental benefits, such as..." Receives: Behavioral: Priming intervention |
| Environmental and health co-benefits priming group | Experimental | Participants will be cueing with environmental and health co-benefits by asking to do a word-search exercise beginning with: "In the following, please choose words/statements that can indicate that having a healthy and sustainable diet can have both benefits for health and the environment, such as..." Receives: Behavioral: Priming intervention |
What is being measured
The primary outcome is the main question the study is designed to answer.
Consumers' preference for choosing sustainable foods measured by Discrete Choice Experiment
- Measure name: consumers' food consumption preference
- Measure tool: an online discrete choice experiment
- Measure units: The frequency of choosing sustainable food
Measured: Within 1 day of randomization
Secondary outcomes (1)
Measure participants' social orientation value using Social Orientation Value Scale
- Measure name: Social Orientation Value (SVO)
- Measure tool: survey questionnaire
- Measure units: subjects can slide along a continuum of own-other payoff allocations, measure units should be the times participants choose own or self.
Measured: Within 1 day of randomization
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted8 Jul 2021
- Study start27 Sep 2022
- Primary completion31 Dec 2023
- Study completion31 Dec 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Food ConsumptionStudies of the same condition, open and under way.
- More trials run by The 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
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 1,000 participants (actual)
Sponsor and investigators
- Lead sponsor
- The University of Hong Kong
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Qiuyan Liao, The University of Hong Kong
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04955301
- Sponsor's protocol ID
- 201901231sv_a
- Status last verified
- Jan 2024
- First submitted
- 4 Jun 2021
- Last updated
- 3 Jan 2024
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided: Data will be shared upon reasonable request from PI.
Study at a glance
From the registry record, last updated by the sponsor on 3 Jan 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Can we Prime Sustainable Food Choice? A Mix-methods Study
- ClinicalTrials.gov ID
- NCT04955301
- Acronym / sponsor ID
- 201901231sv_a
- Conditions
- Food Consumption
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 1,000 participants (actual)
- Lead sponsor
- The University of Hong KongUniversity, hospital or other
- Study start
- 27 Sep 2022 (actual)
- Primary completion
- 31 Dec 2023 (actual)
- Study completion
- 31 Dec 2023 (actual)
- First posted
- 8 Jul 2021 (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.
This study aims to test and compare the effectiveness of three priming interventions on consumers' selection of sustainable foods: priming with environmental benefits, health benefits and co-benefits (environment and health benefits).
Study design
- Primary purpose
- Health services research
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Control message group | No intervention | –Participants will not receive the priming manipulation. |
| Health benefits priming group | Experimental | Behavioral: Priming interventionParticipants will be cueing with health benefits by asking to do a word-search exercise beginning with: "In the following, please choose words/statements that can indicate that having a healthy and sustainable diet can have health benefits, such as..." |
| Environmental benefits priming group | Experimental | Behavioral: Priming interventionParticipants will be cueing with environmental benefits by asking to do a word-search exercise beginning with: "In the following, please choose words/statements that can indicate that having a healthy and sustainable diet can have environmental benefits, such as..." |
| Environmental and health co-benefits priming group | Experimental | Behavioral: Priming interventionParticipants will be cueing with environmental and health co-benefits by asking to do a word-search exercise beginning with: "In the following, please choose words/statements that can indicate that having a healthy and sustainable diet can have both benefits for health and the environment, such as..." |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Subjects should be aged 18 years or above
- Hong Kong residents
- Be able to read Chinese
Key exclusion criteria (2 listed)
- Subjects who have vegan or vegetarian diets
- Subjects who have to follow special diets due to illnesses will be excluded.
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 |
|---|---|---|
| Priming interventionThe priming manipulation will be embedded in one discrete choice experiment to test the effect of three priming interventions: priming with health benefits, environment benefits, and co-benefits of having sustainable diets, respectively, on consumers' preference for sustainable foods, and the relative importance of proximal attributes (e.g. taste and price) and distant attributes (e.g., attributes related to environmental sustainability) in determining food choice preference, as well as testing whether the effects of these three priming interventions can be modified by consumers' social orientation values. The cueing manipulation will be achieved by asking participants to complete a word-search exercise. | Behavioural | Environmental and health co-benefits priming group, Environmental benefits priming group, Health benefits priming group |
Primary outcome
Consumers' preference for choosing sustainable foods measured by Discrete Choice Experiment
Time frame: Within 1 day of randomization
* Measure name: consumers' food consumption preference * Measure tool: an online discrete choice experiment * Measure units: The frequency of choosing sustainable food
1 secondary outcome
Measure participants' social orientation value using Social Orientation Value Scale
Time frame: Within 1 day of randomization
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Jan 2024.
- Individual participant dataSharing planned: Undecided. Data will be shared upon reasonable request from PI.
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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. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Priming intervention in people with Food Consumption, run by The University of Hong Kong at 1 site in 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 3 inclusion and 2 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: finished, as of the sponsor's last update on 3 Jan 2024. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Hong Kong. Whether a site is taking part right now should be confirmed with that site. See every site.
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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
Consumers' preference for choosing sustainable foods measured by Discrete Choice Experiment (time frame: Within 1 day of randomization). 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 3 Jan 2024.