Effectiveness and Implementation of a Research Tested Mobile Produce Market

NCT04246593 | Completed Results

• 2 other identifiers: 11445945R37CA215232-02
• Study Type: interventional
• Target: 759
• Locations: 1 country
• Sites: 1

Brief Summary

Investigators will test the effectiveness of the Veggie Van model across multiple organizations and sites using a cluster-randomized design and will document the implementation process to understand what factors are associated with dietary change and sustainability.

Conditions

Fruit and Vegetable Consumption

Outcome Measures

Primary Outcomes (1)

• Consumption of Fruits and Vegetables

  Change in Fruit \& Vegetable (F\&V) intake (servings/day) at 12 months will be calculated from four 24-hour recalls (2 at baseline and 2 at 12-months) which will be administered over the phone by trained interviewers (in English or Spanish). One recall at each time point will be from a weekday and the other from a weekend day. The 24-hour dietary recalls will be collected using the Nutrition Data Systems for Research (NDSR) computer-based software application developed at the University of Minnesota Nutrition Coordinating Center (NCC); NDSR uses a five pass interview approach with interview prompts in English and Spanish (49). The NCC Food and Nutrient Database serves as the source of food composition information in NDSR (50). When a participant completes their in-person data collection, participants will receive The Food Amounts Booklet to have as a visual reference during the 24-hour recall. This booklet is compatible with the NDSR program.

  12 months

Secondary Outcomes (2)

• Body Mass Index

  12 months

• Dermal Carotenoids

  12 months

Other Outcomes (2)

• Psychosocial Measures - Self-efficacy

  12 months

• Psychosocial Measures - Benefits (Expectations)

  12 months

Study Arms (2)

Intervention - Market

EXPERIMENTAL

Partner sites that are randomized to the "Intervention - Market" will plan and start (or expand) a Mobile Market and run the Market weekly for at least 10 months (non necessarily nonconsecutive). The Mobile Market will follow the Veggie Van Model which includes a "share model", price reductions (incentives), and an educational component.

Other: Mobile Market program implementation

Control - Planning

NO INTERVENTION

At Control - Planning (comparison) sites, engagement will focus on involving community members in food access program planning and research. It is anticipated that each organization will create one or more community advisory committees to oversee their food access work. At comparison sites, engagement efforts will be more generally centered on food access and understanding what types of programs would be most acceptable. Examples of community engagement activities include community forums and listening sessions, informational tables at community events, and establishment of text, e-mail or social media sites for ongoing communication and feedback around food access issues. As part of this community engagement work, partners will collect contact information from community members that will assist in the data collection process.

Interventions

Mobile Market program implementation OTHER

Mobile Market program implementation includes utilizing a Veggie Van model which sells reduced cost locally-grown produce in communities with barriers to accessing fresh F\&Vs because of availability, cost, or lack of produce preparation skills.The Veggie Van visits sites that already serve the target market (e.g., lower-income housing communities, community health centers, community colleges). While Mobile Market programs vary in their model and operation, we believe that the three components of Veggie Van's success are it's "share" model, price reductions (incentives), and educational component

Intervention - Market

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• at least 18 years old, speak English or Spanish
• the primary grocery shopper for their household
• interested in having more healthy food retail options at or around the proposed Mobile Market site
• either frequent the proposed Mobile Market site regularly or live near by

Sponsors & Collaborators

• University at Buffalo: lead
• University of North Carolina, Chapel Hill: collaborator
• National Cancer Institute (NCI): collaborator

Study Sites (1)

Massachusetts Avenue Project

Buffalo, New York, 14222, United States

Location

Related Publications (2)

• Leone LA, Kasprzak C, Lally A, Paluch R, Haynes-Maslow L, Raja S, Tumiel-Berhalter L, Vermont LN, Ammerman A. Cluster-Randomized Controlled Trial of a Mobile Produce Market designed to Address Diet and Food Insecurity in Underserved Communities. Res Sq [Preprint]. 2025 Dec 2:rs.3.rs-7860050. doi: 10.21203/rs.3.rs-7860050/v1.

  PMID: 41377950 DERIVED

• Vermont LN, Kasprzak C, Lally A, Claudio A, Tumiel-Berhalter L, Haynes-Maslow L, Ammerman A, Raja S, Leone LA. A Randomized Controlled Trial of a Research-Tested Mobile Produce Market Model Designed to Improve Diet in Under-Resourced Communities: Rationale and Design for the Veggie Van Study. Int J Environ Res Public Health. 2022 Aug 10;19(16):9832. doi: 10.3390/ijerph19169832.

  PMID: 36011468 DERIVED

Results Point of Contact

• Title: Dr. Lucia Leone
• Organization: State University of New York at Buffalo

lucialeo@buffalo.edu

(716) 829-6040

Study Officials

• Lucia Leone, Phd

  SUNY at Buffalo

  PRINCIPAL INVESTIGATOR

Publication Agreements

• PI is Sponsor Employee: Yes

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: OTHER
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assistant Professor

Study Record Dates

• First Submitted: October 22, 2019
• First Posted: January 29, 2020
• Study Start: January 13, 2020
• Primary Completion: October 11, 2023
• Study Completion: October 11, 2023
• Last Updated: June 5, 2025
• Results First Posted: June 5, 2025

Record last verified: 2025-05

Data Sharing

• IPD Sharing: Will not share

Locations

US (1)