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Price Promotions on Purchases of Snacks

NCT05098223 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 512

Last updated 2022-02-17

No results posted yet for this study

Summary

Study Design: Randomised controlled trial

Study Participants: Healthy volunteers from the UK

Planned Sample Size: 500

Planned Study Period: June - December 2021

Objectives and Outcome Measures:

1. Primary

* Objective: To investigate the effect of promotions on the total number of calories selected
* Measure: Difference in the absolute energy (kcal) of the final basket between the two groups
2. Secondary

Objectives:
* To investigate the effect of promotions on the nutritional content of the items selected overall, and across the individual target food categories
* To explore the impact of removing promotions by socioeconomic status

Measures:
* Difference in the absolute sugar (g, kcal, %E), salt (g), and saturated fat (g, kcal, %E) of the final basket between the two groups
* Difference in the absolute energy (kcal), sugar (g, kcal, %E), salt (g), and saturated fat (g, kcal, %E) between the two groups across the individual target food categories
* Analyses of the primary and secondary outcomes specified above by gender, age group, ethnic group (White vs Non-White), BMI stratified into \<30 and ≥30kg/m2 groups, education level (lower vs. higher), and household income (lower vs. higher)
3. Exploratory outcomes:

* Objective: To investigate the acceptability of the intervention
* Measures: Rating scores and open-ended answers from the follow-up questionnaire

Conditions

  • Healthy Diet

Interventions

BEHAVIORAL

Intervention to remove price promotions on unhealthy foods when online shopping

Removal of price promotions on unhealthy foods

Sponsors & Collaborators

  • University of Oxford

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2021-10-29
Primary Completion
2021-11-09
Completion
2021-11-09

Countries

  • United Kingdom

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05098223 on ClinicalTrials.gov