NCT07167004Active, not recruiting
The GRoceries Aimed at Increasing Nutrition Study
Prompting a Switch From Refined Grains to Whole Grains in an Online Grocery Store Using Marketing Nudges and Financial Incentives
Source: ClinicalTrials.gov · Last updated 20 Oct 2026
Brief summary (registry, in English)
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.
- Status (registry)
- Active, not recruiting
- Study type
- Interventional
- Enrollment
- 219 (actual)
- First submitted
- 25 Jul 2025
- Start date
- 14 Oct 2025
- Primary completion date
- 16 Feb 2027
- Lead sponsor
- University of Pennsylvania
- Diseases
- Type 2 diabetes
- NCT number
- NCT07167004
What you commit to
- Study type: Interventional
- Participants enrolled: 219
- From 14 Oct 2025 to the primary completion date, 16 Feb 2027
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Other
- Does not meet all the inclusion criteria.
- Not able to speak English.
- Not able to provide consent.
Who the study is looking for
- Age 45 - 70 years.
- Able to provide consent.
- Resident of Philadelphia, Bucks, Delaware, Chester, or Montgomery Counties in Pennsylvania.
- Consume \<5 servings of whole grains per day.
- Use online grocery shopping at least once per month.
- Have access to a credit or debit card to pay for groceries purchased.
- Have reliable internet access.
- Speak English.
- Penn Medicine patient diagnosed with prediabetes or diabetes (identified using ICD-10 codes R73.03, E11).
Age in the registry: 45 years to 70 years · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| University of Pennsylvania Coordinator of this site? Confirm its status | Philadelphia | United States | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.