NCT02385838

Brief Summary

The purpose of this interventional study is to compare the impact of four different Front-Of-Pack (FOP) nutrition labels on purchasing intentions. This study is nested in the ongoing web-based prospective observational NutriNet-Santé cohort study, including on December 2014 around 150,000 participants. The investigators will perform a five-arm randomized trial where participants will be subjected to different FOP nutrition label formats: Guidelines Daily Amount (GDA), Multiple Traffic Lights (MTL), 5-Color Nutrition Label (5-CNL), Green Tick (Tick) and a 'no label' condition. The impact of front-of-pack nutrition labels on the nutritional quality of the shopping cart will be assessed. Participants from the NutriNet-Santé cohort study will be randomly assigned to one of these five experimental conditions according to their sociodemographic characteristics. Purchasing intentions will be assessed using an experimental web-based supermarket designed to look like a regular online grocery store. The supermarket includes 269 unique products divided into 4 categories: dairy products, processed meat/delicatessen, savory and breakfast/sugary products. Each category is then separated into specific products families like yogurt, milk, cheese, etc. for the dairy products category. Inside a food family, the selection of foodstuffs will be made to obtain a representative sample of the products commonly sold in French supermarket. For each type of products, at least two variants are proposed. Products are retailers or manufacturers branded. Categories of products that are not usually bought each week, or which are likely to be bought from different sources are not included on the web-based supermarket. Participants are asked to simulate a shopping situation: they have to select a week worth of food for their family among proposed products. If the user is not able to find a product he/she usually buy, the instruction is to select similar product among proposed ones. Information provided for each product is: name, price and the picture with the FOP label/or not according to the experimental condition to which the participant is allocated. A brief explanation of the FOP label used is also given.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
11,981

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Dec 2014

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2014

Completed
Same day until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2014

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

February 26, 2015

Completed
13 days until next milestone

First Posted

Study publicly available on registry

March 11, 2015

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2015

Completed
Last Updated

May 11, 2016

Status Verified

May 1, 2016

Enrollment Period

Same day

First QC Date

February 26, 2015

Last Update Submit

May 10, 2016

Conditions

Food LabelingChoice Behavior

Keywords

Nutrition labellingFront-of-pack nutrition labelsPurchasing intentionsNutritional qualityRandomized controlled trial (RCT)

Outcome Measures

Primary Outcomes (1)

  • Overall nutritional quality of the shopping cart

    The overall nutritional quality of the shopping cart is estimated by computing the Food Standards Agency (FSA) nutrient profiling system for 100 g of the cart (i.e. sum of the FSA score of all products, divided by the number of products chosen)

    up to 27 weeks

Secondary Outcomes (2)

  • Caloric value of the shopping cart

    up to 27 weeks

  • Nutrients content of the shopping cart

    up to 27 weeks

Study Arms (5)

5-Color Nutrition Label (5-CNL)

EXPERIMENTAL

The 5-CNL front-of-pack nutrition labeling is affixed on the front-of-pack of foodstuffs of the experimental web-based supermarket

Behavioral: 5-CNL

Mutiple Traffic Lights (MTL)

EXPERIMENTAL

The MTL front-of-pack nutrition labeling is affixed on the front-of-pack of foodstuffs of the experimental web-based supermarket

Behavioral: MTL

Guidelines Daily Amounts (GDA)

EXPERIMENTAL

The GDA front-of-pack nutrition labeling is affixed on the front-of-pack of foodstuffs of the experimental web-based supermarket

Behavioral: GDA

Green Tick (Tick)

EXPERIMENTAL

The Tick front-of-pack nutrition labeling is affixed on the front-of-pack of foodstuffs of the experimental web-based supermarket

Behavioral: Tick

No label

NO INTERVENTION

No front-of-pack nutrition labeling is affixed on the front-of-pack of foodstuffs of the experimental web-based supermarket

Interventions

5-CNLBEHAVIORAL

The 5-CNL front-of-pack nutrition label is introduced on foodstuffs in a controlled shopping environment

5-Color Nutrition Label (5-CNL)
MTLBEHAVIORAL

The MTL front-of-pack nutrition label is introduced on foodstuffs in a controlled shopping environment

Mutiple Traffic Lights (MTL)
GDABEHAVIORAL

The GDA front-of-pack nutrition label is introduced on foodstuffs in a controlled shopping environment

Guidelines Daily Amounts (GDA)
TickBEHAVIORAL

The Tick front-of-pack nutrition label is introduced on foodstuffs in a controlled shopping environment

Green Tick (Tick)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Being a participant of the NutriNet-Santé cohort study
  • Completing the preliminary questionnaire about nutrition knowledge and purchasing habits
  • Completing online shopping in the experimental supermarket

You may not qualify if:

  • Not going shopping usually
  • Having a difference greater than 400€ between the price of their shopping cart versus their usual weekly shopping cart budget
  • Having aberrant body mass index (i.e. \>55 or \<11 for women and \<13 for men)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Equipe de Recherche en Epidémiologie Nutritionnelle

Bobigny, F-93017, France

Location

Related Publications (1)

  • Ducrot P, Julia C, Mejean C, Kesse-Guyot E, Touvier M, Fezeu LK, Hercberg S, Peneau S. Impact of Different Front-of-Pack Nutrition Labels on Consumer Purchasing Intentions: A Randomized Controlled Trial. Am J Prev Med. 2016 May;50(5):627-636. doi: 10.1016/j.amepre.2015.10.020. Epub 2015 Dec 15.

    PMID: 26699246DERIVED

Study Officials

  • Serge Hercberg, Pr

    EREN

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
SCREENING
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof. Dr.

Study Record Dates

First Submitted

February 26, 2015

First Posted

March 11, 2015

Study Start

December 1, 2014

Primary Completion

December 1, 2014

Study Completion

June 1, 2015

Last Updated

May 11, 2016

Record last verified: 2016-05

Locations

FR(1)