Diet HabitNCT04766034
Impact of Behavioral Economic Strategies on Low-Income Older Adults' Food Choices in Online Retail Settings
A study testing Simulated Grocery Shopping Exercise in people with Diet Habit, run by NYU Langone Health at 1 site in United States.
Trial summary
The specific aims of this proposal are to 1) develop the components of a behavioral economics strategy (i.e., healthy bundle defaults) to influence diet behaviors; 2) characterize the online grocery shopping behaviors and attitudes of low-income adults nationally; and 3) examine the extent to which "healthy bundles… Read more about this study
- Who is it for?
- Ages 18 to 99 yearsHealthy volunteers can take part
- Conditions the study is for
- Diet Habit
- What is being tested?
- Simulated Grocery Shopping Exercise
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 7,710 participants
- Where
- 1 siteUnited States
- Study dates
- 7 Oct 2021to 2 Dec 2021
- Phase
- Interventional
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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 to 99 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- aged 18-99 years
- ability to read and speak English
- have ever received SNAP benefits
- live with fewer than 5 people
- access to a personal computer, laptop, tablet, or mobile phone.
Who cannot join
- aged <18 years or >99 years
- lack the ability to read and speak English
- have never received SNAP benefits
- live with 5 or more people
- do not have access to a personal computer, laptop, tablet, or mobile phone
Trial locations and contacts
1 site in 1 country.
About this study
The specific aims of this proposal are to 1) develop the components of a behavioral economics strategy (i.e., healthy bundle defaults) to influence diet behaviors; 2) characterize the online grocery shopping behaviors and attitudes of low-income adults nationally; and 3) examine the extent to which "healthy bundles defaults" and other behavioral economic strategies increase fruit and vegetable purchases among low-income adults in an online randomized controlled experiment.
- Conditions
- Diet Habit
- Being tested
- Simulated Grocery Shopping Exercise
- Medical subject headings
- Feeding Behavior
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Simulated Grocery Shopping ExerciseBehavioural
Participants will click a link and simulate a shopping experience by selecting a week's worth of Supplemental Nutrition Assistance Program (SNAP)-eligible groceries for their household in a web-based supermarket platform
| Study group | Role | What they receive |
|---|---|---|
| Control | Sham comparator | The grocery shopping simulation will not include any discounts or bundles Receives: Behavioral: Simulated Grocery Shopping Exercise |
| Discount | Active comparator | The grocery shopping simulation will include discount on eligible fruits and vegetables Receives: Behavioral: Simulated Grocery Shopping Exercise |
| Bundles | Active comparator | The grocery shopping simulation will include healthy bundle defaults with no discount Receives: Behavioral: Simulated Grocery Shopping Exercise |
| Bundles and Discount | Active comparator | The grocery shopping simulation will include healthy bundle defaults plus a discount Receives: Behavioral: Simulated Grocery Shopping Exercise |
What is being measured
The primary outcome is the main question the study is designed to answer.
Real Dollars Spent on Fruit and Vegetables Per Basket
"Fruits and vegetables" are defined as frozen, fresh, and canned fruits and vegetables without added sugars, fats, oils, or salt.
Measured: Day 1
Secondary outcomes (8)
Real Dollars Spent on Eligible Fruits Only
"Eligible Fruits" are defined as fruit items identified as discounted in the online store.
Measured: Day 1
Real Dollars Spent on Eligible Vegetables Only
"Eligible Vegetables" are defined as vegetable items identified as discounted in the online store.
Measured: Day 1
Real Dollars Spent on Eligible Fresh Fruits and Vegetables
"Eligible Fresh Fruits and Vegetables" are defined as fresh, not frozen or canned, fruit and vegetables items identified as discounted in the online store.
Measured: Day 1
Real Dollars Spent on Eligible Frozen Fruits and Vegetables
"Eligible Frozen Fruits and Vegetables" are defined as frozen fruit and vegetables items identified as discounted in the online store.
Measured: Day 1
Real Dollars Spent on Eligible Canned Fruits and Vegetables
"Eligible Canned Fruits and Vegetables" are defined as canned fruit and vegetables items identified as discounted in the online store.
Measured: Day 1
Total Calories From Fruits and Vegetables Per Basket
"Fruits and vegetables" are defined as frozen, fresh, and canned fruits and vegetables without added sugars, fats, oils, or salt.
Measured: Day 1
Number of Participants Who Purchased Fruits and/or Vegetables
Participants who purchased fruits and/or vegetables during their online shopping trip.
Measured: Day 1
Number of Participants Who Kept Healthy Bundle Default Shopping Cart Items in Basket at Purchase
"Healthy Bundle Default Shopping Cart Items" are defined as items placed automatically in participants' carts at the beginning of the shopping exercise. Assessed among participants in the Bundles (Arm 3) and Bundles + Discount (Arm 4) arms only.
Measured: Day 1
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Feb 2021
- Study start7 Oct 2021
- Primary completion2 Dec 2021
- Study completion2 Dec 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Diet HabitStudies of the same condition, open and under way.
- More trials run by NYU Langone HealthThe 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
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 7,710 participants (actual)
Sponsor and investigators
- Lead sponsor
- NYU Langone Health
- Sponsor type
- University, hospital or other
- Collaborators
- National Institute on Aging (NIA)
- Responsible party
- Sponsor
- Investigators
- Pasquale Rummo, MPH, PhD, Principal investigator, NYU Langone Health
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04766034
- Sponsor's protocol ID
- 20-01936
- Status last verified
- Feb 2023
- First submitted
- 18 Feb 2021
- Last updated
- 9 Mar 2023
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: Individual participant data that underlie the results reported in this article, after deidentification (text, tables, figures, and appendices) will be shared upon reasonable request.
Publications
Rummo PE, Roberto CA, Thorpe LE, Troxel AB, Elbel B. Effect of Financial Incentives and Default Options on Food Choices of Adults With Low Income in Online Retail Settings: A Randomized Clinical Trial. JAMA Netw Open. 2023 Mar 1;6(3):e232371. doi: 10.1001/jamanetworkopen.2023.2371.
PubMed 36897592
Study at a glance
From the registry record, last updated by the sponsor on 9 Mar 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Impact of Behavioral Economic Strategies on Low-Income Older Adults' Food Choices in Online Retail Settings
- ClinicalTrials.gov ID
- NCT04766034
- Acronym / sponsor ID
- 20-01936
- Conditions
- Diet Habit
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 7,710 participants (actual)
- Lead sponsor
- NYU Langone HealthUniversity, hospital or other
- Collaborators
- National Institute on Aging (NIA)
- Study start
- 7 Oct 2021 (actual)
- Primary completion
- 2 Dec 2021 (actual)
- Study completion
- 2 Dec 2021 (actual)
- First posted
- 23 Feb 2021 (actual)
- Results
- Posted 9 Mar 2023
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The specific aims of this proposal are to 1) develop the components of a behavioral economics strategy (i.e., healthy bundle defaults) to influence diet behaviors; 2) characterize the online grocery shopping behaviors and attitudes of low-income adults nationally; and 3) examine the extent to which "healthy bundles defaults" and other behavioral economic strategies increase fruit and vegetable purchases among low-income adults in an online randomized controlled experiment.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Control | Sham comparator | Behavioral: Simulated Grocery Shopping ExerciseThe grocery shopping simulation will not include any discounts or bundles |
| Discount | Active comparator | Behavioral: Simulated Grocery Shopping ExerciseThe grocery shopping simulation will include discount on eligible fruits and vegetables |
| Bundles | Active comparator | Behavioral: Simulated Grocery Shopping ExerciseThe grocery shopping simulation will include healthy bundle defaults with no discount |
| Bundles and Discount | Active comparator | Behavioral: Simulated Grocery Shopping ExerciseThe grocery shopping simulation will include healthy bundle defaults plus a discount |
Who may qualify
- Ages
- 18 to 99 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- aged 18-99 years
- ability to read and speak English
- have ever received SNAP benefits
- live with fewer than 5 people
- access to a personal computer, laptop, tablet, or mobile phone.
Key exclusion criteria (5 listed)
- aged <18 years or >99 years
- lack the ability to read and speak English
- have never received SNAP benefits
- live with 5 or more people
- do not have access to a personal computer, laptop, tablet, or mobile phone
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 |
|---|---|---|
| Simulated Grocery Shopping ExerciseParticipants will click a link and simulate a shopping experience by selecting a week's worth of Supplemental Nutrition Assistance Program (SNAP)-eligible groceries for their household in a web-based supermarket platform | Behavioural | Bundles, Bundles and Discount, Control, Discount |
Primary outcome
Real Dollars Spent on Fruit and Vegetables Per Basket
Time frame: Day 1
"Fruits and vegetables" are defined as frozen, fresh, and canned fruits and vegetables without added sugars, fats, oils, or salt.
8 secondary outcomes
Real Dollars Spent on Eligible Fruits Only
Time frame: Day 1
Real Dollars Spent on Eligible Vegetables Only
Time frame: Day 1
Real Dollars Spent on Eligible Fresh Fruits and Vegetables
Time frame: Day 1
Real Dollars Spent on Eligible Frozen Fruits and Vegetables
Time frame: Day 1
Real Dollars Spent on Eligible Canned Fruits and Vegetables
Time frame: Day 1
Total Calories From Fruits and Vegetables Per Basket
Time frame: Day 1
Number of Participants Who Purchased Fruits and/or Vegetables
Time frame: Day 1
Number of Participants Who Kept Healthy Bundle Default Shopping Cart Items in Basket at Purchase
Time frame: Day 1
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 9 Mar 2023.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 36897592Rummo PE, Roberto CA, Thorpe LE, Troxel AB, Elbel B. Effect of Financial Incentives and Default Options on Food Choices of Adults With Low Income in Online Retail Settings: A Randomized Clinical Trial. JAMA Netw Open. 2023 Mar 1;6(3):e232371. doi: 10.1001/jamanetworkopen.2023.2371.
- Individual participant dataSharing planned: Yes. Individual participant data that underlie the results reported in this article, after deidentification (text, tables, figures, and appendices) will be shared upon reasonable request.
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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.
Pasquale Rummo, MPH, PhD principal investigator
NYU Langone Health
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Simulated Grocery Shopping Exercise in people with Diet Habit, run by NYU Langone Health at 1 site in United States.
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 5 inclusion and 5 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 9 Mar 2023. 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 United States. 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. Some participants in this study may receive a placebo. 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?
Yes. Results are posted in the registry (first posted 9 Mar 2023). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
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?
Real Dollars Spent on Fruit and Vegetables Per Basket (time frame: Day 1). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04766034, which also lists 1 linked publication.
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 9 Mar 2023; AzTrials last refreshed its copy on 8 Nov 2026.