NCT06283394

Penn Medicine Food Market Study

Active, enrolled NA Last updated 2 February 2026

What this trial tests

NA trial testing Storefront Choice Architecture in Obesity in 214 participants. Participants enrolled and being followed up; not accepting new ones.

Timeline

1 August 2024

Primary endpoint
1 May 2025

21 March 2026

Quick facts

Lead sponsor	University of Pennsylvania
Phase	NA
Status	Active, enrolled
Study type	INTERVENTIONAL
Allocation	randomized
Design	parallel
Masking	double
Primary purpose	health services research
Enrollment	214
Start date	1 August 2024
Primary completion	1 May 2025
Estimated completion	21 March 2026
Sites	1 location across United States

Drugs / interventions tested

• Storefront Choice Architecture
• Fresh Funds
• Loss Framing

Conditions studied

• Obesity — all drugs for Obesity →
• Diabetes — all drugs for Diabetes →

Sponsor

University of Pennsylvania

Who can join

Adults 30 to 70, any sex, with Obesity or Diabetes. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

The goal of this interventional study is to test ways to improve the effectiveness of a healthy foods prescription program in increasing the purchase of healthy foods for patients who have both obesity (BMI \>or= 30) and diabetes (last A1C\>8 in the 90 days from data pull). The main questions it aims to answer are:

Aim 1: Examine feasibility and engagement among participants by assessing percent enrollment among those identified as eligible, rates of Instacart platform use, amount of the subsidy used each week, and amounts of healthy foods ordered.

Aim 2: Examine strategies to optimize the user experience of trial participation, including communication strategies and on-boarding, to increase uptake and engagement in this and subsequent studies.

Usual Care (Control): Participants in the usual care arm will not receive weekly subsidies on Instacart, and they will not receive any modifications to the virtual storefront on Instacart. They will have access to the standard Instacart platform and Instacart + memberships with $5 per week to cover service and delivery fees and delivery tips for 3 months.

Intervention Arms: The four treatment groups will also each receive a $160 subsidy per month for 3 months to be used on produce (fruits and vegetables).

Publications & conference data

1 peer-reviewed publication reference this trial (live from Europe PMC):

1. Using a human-centered design framework and behavioral economic interventions to increase fruit and vegetable purchases in an online grocery store: Study design and methodologies.
   Hua SV, Klaiman T, Coratti S, White J, et al · · 2025 · PMID 40252826 · DOI 10.1016/j.cct.2025.107921