NCT04235413

Brief Summary

The goal of this study is to evaluate the effectiveness of financial incentives delivered in real-time at point of purchase, on low-income consumers' purchase of fruits and vegetables, fruits and vegetables consumption, diet quality, and weight/BMI. The study will test real-time incentives compared to a no-incentive control condition.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
244

participants targeted

Target at P75+ for not_applicable obesity

Timeline
Completed

Started Jan 2020

Typical duration for not_applicable obesity

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

First Submitted

Initial submission to the registry

January 8, 2020

Completed
7 days until next milestone

Study Start

First participant enrolled

January 15, 2020

Completed
6 days until next milestone

First Posted

Study publicly available on registry

January 21, 2020

Completed
2.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 30, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 30, 2022

Completed
Last Updated

January 12, 2023

Status Verified

January 1, 2023

Enrollment Period

2.9 years

First QC Date

January 8, 2020

Last Update Submit

January 10, 2023

Conditions

ObesityFruit and Vegetable IntakeHealthy Diet

Keywords

nutritionhealth disparitiesfood purchases

Outcome Measures

Primary Outcomes (2)

  • Self-reported fruits and vegetables (FV) purchase data

    Participants will be asked if they increased, maintained, or decreased their purchases of canned, frozen, and fresh FV in the previous months.

    up to 8 months

  • Intake of fruits and vegetables (FV) per day

    FV consumption intake will be assessed using the Dietary Screener Questionnaire from NHANES (National Healthy and Examination Survey) 2009-2010.

    Baseline, 6 months, 8 months

Secondary Outcomes (4)

  • Total mean of fruits and vegetables expenditures/purchases and incentives earned

    up to 8 months

  • Dietary changes for each adult participant and one child in their household

    Baseline, 6 months, 8 months

  • Changes in dietary habits and food environments

    Baseline, 6 months, 8 months

  • Changes in BMI

    Baseline, 6 months, 8 months

Study Arms (2)

Real-Time Incentives Group

EXPERIMENTAL

Each participant will be randomized using a blocking procedure (SNAP participant or not). The intervention will last 6 months and consist of receiving real-time financial incentives at the point of purchase for eligible fruits and vegetables purchases.

Behavioral: Real-Time Incentives Group

Control Group

NO INTERVENTION

No intervention administered. Each participant will be randomized using a blocking procedure (SNAP participant or not).

Interventions

Real-Time Incentives GroupBEHAVIORAL

The use of a novel computer program with a mobile phone interface to provide real-time financial incentives at the point of purchase for discounts on fruit and vegetables in low-income families. This intervention will be applied to subjects randomized to the intervention arm. They will receive 50% off eligible fruits and vegetable products at the point of purchase, up to $10 a week for 6 months. Maximum amount they can receive is $260 in discounts over the 6 month period.

Real-Time Incentives Group

Eligibility Criteria

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

You may qualify if:

  • years of age or older
  • Speak English
  • Do most of their food shopping at a participating supermarket
  • Receive or are eligible to receive SNAP benefits
  • Have a child in the household between the ages of 2-17
  • Have a working smartphone
  • Be the main household shopper

You may not qualify if:

  • Participants will be excluded if the primary shopper and/or any children in the family have major medical or dental conditions that would prevent them from eating fruits and vegetables, or if they have a serious neurological disorder, dementia, or psychiatric condition that interferes with understanding study procedures

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Pennsylvania

Philadelphia, Pennsylvania, 19104, United States

Location

MeSH Terms

Conditions

Obesity

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Karen Glanz, PhD, MPH

    University of Pennsylvania

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 8, 2020

First Posted

January 21, 2020

Study Start

January 15, 2020

Primary Completion

November 30, 2022

Study Completion

November 30, 2022

Last Updated

January 12, 2023

Record last verified: 2023-01

Locations

US(1)