Collaboration for healthier lives, France
| ISRCTN | ISRCTN17437572 |
|---|---|
| DOI | https://doi.org/10.1186/ISRCTN17437572 |
| Secondary identifying numbers | CHLF |
- Submission date
- 17/05/2019
- Registration date
- 18/05/2019
- Last edited
- 04/08/2021
- Recruitment status
- Suspended
- Overall study status
- Stopped
- Condition category
- Other
Plain English summary of protocol
Background and study aims
There is a growing interest for in-store interventions that can nudge people to purchase healthier foods, but a lack of data about their real-world effectiveness, especially over the medium term. The study aims to assess the ability of three point-of-sale interventions in grocery stores to improve the nutritional quality of food purchases.
Who can participate?
Anyone shopping at one of the participating grocery stores.
What does the study involve?
Grocery shopping at the participating stores, before and during the intervention. A few participants will be invited to answer an online survey about their perceptions and healthy eating intentions.
What are the possible benefits and risks of participating?
There are no foreseeable risks or benefits for the participants.
Where is the study run from?
The study is running in supermarkets and hypermarkets in the region of Lyon, France.
When is the study starting and how long is it expected to run for?
May 2019 to June 2020
Who is funding the study?
Institut Européen d'Administration des Affaires (European Institute of Business Administration, INSEAD), France
Who is the main contact?
1. Ms Sharon Bligh (public),
s.bligh@theconsumergoodsforum.com
2. Prof. Pierre Chandon (scientific),
pierre.chandon@insead.edu
3. Ms Nouha Touati (scientific),
nouha.touati@insead.edu
Contact information
Public
22 Rue du Gouverneur Général Éboué
Issy les Moulineaux
92130
France
| Phone | 00331 82 00 95 95 |
|---|---|
| s.bligh@theconsumergoodsforum.com |
Scientific
Boulevard de Constance
Fontainebleau
77300
France
 ORCID ID |
0000-0002-1887-1985 |
|---|---|
| Phone | 00331 60 72 40 00 |
| pierre.chandon@insead.edu |
Scientific
Boulevard de Constance
Fontainebleau
77300
France
| Phone | +33 1 60 72 49 87 |
|---|---|
| nouha.touati@insead.edu |
Study information
| Study design | Interventional multi-centre controlled before and after design |
|---|---|
| Primary study design | Interventional |
| Secondary study design | Controlled before and after |
| Study setting(s) | Other |
| Study type | Prevention |
| Participant information sheet | No participant information sheet available |
| Scientific title | Grocery store interventions to improve the nutritional quality of food purchases in a field setting. A controlled before and after real-life study |
| Study acronym | CHLF |
| Study objectives | The three interventions will improve the nutritional quality of the foods purchased in the test grocery stores and will increase intentions to engage in healthier eating. |
| Ethics approval(s) | Approved 17/05/2019, Internal Review Board of INSEAD (Boulevard de Constance, Fontainebleau Cedex, 77305, France; +33 (0)1 60 72 40 00; irb@insead.edu) |
| Health condition(s) or problem(s) studied | Volunteer |
| Intervention | A total of five conditions are tested: 1. A group of stores with shopping carts with specially-designed posters placed in the front part of the cart to nudge consumers to reach the Public Health France recommendations for daily fruit and vegetable consumption 2. A group of stores with specific end-of-aisle displays promoting fruits & vegetables or foods with good nutritional profiles (with an A or B Nutriscore or at least a better Nutriscore than the average of their category), accompanied or not by promotional offers like temporary price reductions 3. A group of stores with specific checkout lines including an assortment of food with a good nutritional profile 4. Stores with all three interventions 5. There will be also a group of control stores with similar clientele and sales as the group of test stores and without any intervention. Participants are regular shoppers at the participating grocery stores. The retailer will communicate anonymized purchase data for shoppers who have a loyalty card and scan it at the time they are making their purchases. All the shoppers will be informed of the intervention in the participating stores. All loyalty card holders have consented to have their data analyzed by the retailer. A random sample of loyalty card holders shopping in the participating stores will also receive an invitation to fill out a survey. This survey will collect data about their awareness of the intervention, their evaluation of it, and their intentions to engage in healthy eating behaviors. Participation in the survey is voluntary and not compensated. |
| Intervention type | Behavioural |
| Primary outcome measure | Nutritional quality of the basket of supermarket food purchases: 1. Quantity of fruits and vegetables purchased, and 2. Quantity-weighted nutrition quality of their basket of purchases, measured using the Ofcom/FSA nutrient profile At baseline (before the intervention), and at the following time points: 31/08/2019, 31/12/2019 and 30/06/2020. |
| Secondary outcome measures | Consumers awareness and behavioral intentions to engage in healthier behaviors measured using an online questionnaire sent to the loyalty cardholders at baseline and at the following times: 15/06/2019, 15/10/2019, 15/02/2020, 15/06/2020. |
| Overall study start date | 21/02/2019 |
| Completion date | 30/06/2020 |
| Reason abandoned (if study stopped) | Stopped due to the Covid-19 pandemic |
Eligibility
| Participant type(s) | Other |
|---|---|
| Age group | Adult |
| Sex | Both |
| Target number of participants | 100000 |
| Key inclusion criteria | 1. Customers enrolled in the loyalty program of the test and control grocery stores of the participating retailer |
| Key exclusion criteria | 1. No data will be collected on the purchases of minors |
| Date of first enrolment | 20/05/2019 |
| Date of final enrolment | 30/06/2020 |
Locations
Countries of recruitment
- France
Study participating centres
Lyon
69008
France
Ecully
69130
France
Vélizy-Villacoublay
78140
France
Courbevoie
92400
France
Clermont-Ferrand
63000
France
Boulogne-Billancourt
92100
France
Ivry-sur-Seine
94200
France
Paris
75018
France
Montesson
78360
France
Les Ulis
91940
France
Athis-Mons
91200
France
Meylan
38240
France
Lyon
69002
France
Francheville
69340
France
Villeurebanne
69100
France
Genas
69740
France
Meyzieu
69330
France
Fontaines sur Saône
69270
France
Belleville
69220
France
Villeurbanne
69100
France
Irigny
69540
France
Corbas
69960
France
Saint Priest
69800
France
Rilleux-la-pape
69140
France
Villefranche sur saône
69400
France
Sponsor information
University/education
Boulevard de Constance
Fontainebleau
77300
France
| Phone | 01 60 72 40 00 |
|---|---|
| pierre.chandon@insead.edu | |
| Website | www.insead.edu |
"ROR" |
https://ror.org/00ghzk478 |
Funders
Funder type
University/education
Private sector organisation / Universities (academic only)
- Alternative name(s)
- European Institute of Business Administration, INSEAD
- Location
- France
Results and Publications
| Intention to publish date | 30/06/2021 |
|---|---|
| Individual participant data (IPD) Intention to share | No |
| IPD sharing plan summary | Not expected to be made available |
| Publication and dissemination plan | The results of the study will be targeted for publication in academic journals. Progress reports about the implementation of the study and its evaluation by consumers will be released as the study progresses. |
| IPD sharing plan | The datasets generated during and/or analysed during the current study are not expected to be made available due to their proprietary nature and potential commercial use. |
Editorial Notes
04/08/2021: This study has been stopped as of 15/03/2020.
17/04/2020: Due to current public health guidance, recruitment for this study has been paused as of 15/03/2020.
20/05/2019: The following changes were made to the trial record:
1. The recruitment start date was changed from 27/05/2019 to 20/05/2019.
2. The condition was changed from 'healthy volunteer' to 'volunteer'.
17/05/2019: Trial’s existence confirmed by Internal Review Board of INSEAD
