The GRoceries Aimed at Increasing Nutrition Study

Part of paid clinical trials in Philadelphia, Pennsylvania.

Sponsor
University of Pennsylvania
Study ID
NCT07167004
Status
Recruiting
Apply to this trial

Conditions

Eligibility Criteria

Sex
ALL
Age
45 Years - 70 Years
Healthy Volunteers
Not accepted

Interventions

  • Marketing Nudges Only — BEHAVIORAL
    Marketing nudges encouraging whole grain purchasing, including displaying whole grains (e.g., whole wheat bread, brown rice) at the top of the study's online grocery store, featuring whole grain banner displays, and offering product swaps to highlight whole grain alternatives
  • Marketing Nudges + Dynamically Adapted Financial Incentives — BEHAVIORAL
    Marketing nudges encouraging whole grain purchasing, including displaying whole grains (e.g., whole wheat bread, brown rice) at the top of the study's online grocery store, featuring whole grain banner displays, and offering product swaps to highlight whole grain alternatives, plus personalized financial incentives with individual incentive amounts optimized weekly based on prior whole grain purchasing behavior and engagement

Study Details

Only 2% of Americans meet the recommended levels of whole grain consumption, despite its association with reduced risk of type 2 diabetes. This study aims to assess if consumers with prediabetes or type 2 diabetes can be encouraged to switch from buying refined grain products to whole grain products when shopping for groceries online. The study will use personalized marketing strategies, with or without discounts which adjust based on purchasing behavior, to promote whole grain consumption.

Key Dates

Start date
Oct 14, 2025
Status verified
May 2026
Primary completion
Feb 16, 2027
Completion
Feb 16, 2027

Study Design

Enrollment
216 participants (estimated)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION

Arms

  • No Intervention: Control
    Completion of weekly grocery shopping in a version of the study store without any interventions (i.e., without marketing nudges and financial incentives)
  • Experimental: Marketing Nudges Only
    Marketing nudges encouraging whole grain purchasing, including displaying whole grains (e.g., whole wheat bread, brown rice) at the top of the study's online grocery store, featuring whole grain banner displays, and offering product swaps to highlight whole grain alternatives
  • Experimental: Marketing Nudges + Dynamically Adapted Financial Incentives
    Marketing nudges encouraging whole grain purchasing, including displaying whole grains (e.g., whole wheat bread, brown rice) at the top of the study's online grocery store, featuring whole grain banner displays, and offering product swaps to highlight whole grain alternatives, plus personalized financial incentives with individual incentive amounts optimized weekly based on prior whole grain purchasing behavior and engagement

Primary Outcome Measure

Change in calories purchased from products that are majority whole grains over time [ Time Frame: 18 weeks ]

Central Contacts

Locations (1)

FacilityCityStateZIPSite coordinators
University of PennsylvaniaPhiladelphiaPennsylvania19104
Emily Dzieniszewski, MPH
[email protected]
215-898-0954
Julianna Catania, MPH
[email protected]
Sophia V Hua, PhD, MPH (PRINCIPAL_INVESTIGATOR)

Find similar trials in Philadelphia, PA

By condition
Type 2 diabetes
By specialty
EndocrinologyMetabolic healthWeight loss
By research site
University of Pennsylvania· Philadelphia, PA

Related Studies