"Make It Fresh, For Less" Supermarket Pilot Study

NCT ID: NCT03340363

Last Updated: 2017-11-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

401 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-10-08

Study Completion Date

2017-01-01

Brief Summary

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The purpose of this study is to examine the impact of environmental modifications (choice architecture and a marketing campaign) in combination with weekly text messages on purchases of foods made by parents shopping in a large supermarket.

Detailed Description

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The "Make It Fresh, For Less" Supermarket Pilot Study is a supermarket-based intervention developed by the Harvard T.H. Chan School of Public Health in collaboration with the nonprofit organization ChopChop Magazine (chopchopmagazine.org) and a large Northeastern supermarket chain. A promotional campaign advertising low-cost, kid-friendly meals was piloted in one store selected by the supermarket partner, with promotions rotating every 4 weeks during a 16-week intervention period. Parent shoppers were recruited (n=401) at the store and given a study loyalty card to track their transactions. At the start of the intervention, half of the participants were additionally randomized to receive weekly behavioral messages via text message or email. Supermarket purchases were assessed at baseline, during the 16-week intervention, and up to 6-weeks post-intervention.

Primary Aim 1: to examine the impact of a choice architecture intervention in combination with a promotional campaign on food purchases of parents shopping in a large supermarket. It is hypothesized that there will be an increase in selection of foods targeted by the promotional campaign when physical modifications are made.

Primary Aim 2: to examine the impact of weekly behavioral messages in combination with an environmental change intervention on food purchases of parents shopping in a large supermarket. It is hypothesized that there will be a greater increase in selection of foods targeted by the promotional campaign among participants receiving the messages compared to participants exposed to the environmental change intervention alone.

Conditions

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Food Habits Consumer Behavior

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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environmental change

Shoppers were exposed to modifications to the supermarket environment to encourage selection of low-cost, kid-friendly meals

Group Type EXPERIMENTAL

environmental change

Intervention Type BEHAVIORAL

1. Offer kid-friendly, low-cost recipes in a prominent, high-traffic location.
2. Offer healthy default ingredients (bundled ingredients promoted with recipes).
3. Promote recipe ingredients with prominently displayed signage and images.
4. Promote recipes in multiple locations throughout the store.

environmental change and messaging

Shoppers were exposed to modifications to the supermarket environment and weekly messages via text or email to encourage selection of low-cost, kid-friendly meals

Group Type EXPERIMENTAL

environmental change

Intervention Type BEHAVIORAL

1. Offer kid-friendly, low-cost recipes in a prominent, high-traffic location.
2. Offer healthy default ingredients (bundled ingredients promoted with recipes).
3. Promote recipe ingredients with prominently displayed signage and images.
4. Promote recipes in multiple locations throughout the store.

messaging

Intervention Type BEHAVIORAL

Short, behavioral messages sent to participants via text message or email each week to promote the in-store environmental changes

Interventions

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environmental change

1. Offer kid-friendly, low-cost recipes in a prominent, high-traffic location.
2. Offer healthy default ingredients (bundled ingredients promoted with recipes).
3. Promote recipe ingredients with prominently displayed signage and images.
4. Promote recipes in multiple locations throughout the store.

Intervention Type BEHAVIORAL

messaging

Short, behavioral messages sent to participants via text message or email each week to promote the in-store environmental changes

Intervention Type BEHAVIORAL

Other Intervention Names

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choice architecture promotional campaign

Eligibility Criteria

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Inclusion Criteria

* 18 years of age or older
* English-speaking
* Live with a child 18 years of age or younger
* Do more than 50% of shopping at the study store
* Primary shopper in the household

Exclusion Criteria

* None
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Duke University

OTHER

Sponsor Role collaborator

University of New England

OTHER

Sponsor Role collaborator

Massachusetts General Hospital

OTHER

Sponsor Role collaborator

Harvard School of Public Health (HSPH)

OTHER

Sponsor Role lead

Responsible Party

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Eric B. Rimm

Professor of Epidemiology and Nutrition

Responsibility Role PRINCIPAL_INVESTIGATOR

Other Identifiers

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BECR-111191

Identifier Type: -

Identifier Source: org_study_id