Clinical trial NCT06358859: Delta GREENS Food is Medicine Intervention
Official title: Delta GREENS Mississippi Food is Medicine Intervention
Study type: INTERVENTIONAL
Overall status: RECRUITING
Phase: NA
Conditions: Cardiometabolic Risk Factors
Diabetes
High Blood Pressure
Obesity
Nutrition Security
Keywords: Food is Medicine
Diabetes
High blood pressure
Cardiometabolic risk factors
Nutrition-related diseases
Lead sponsor: Tufts University
Sponsor class: OTHER
Collaborators: name: National Institute on Minority Health and Health Disparities (NIMHD)
name: Tougaloo College, Mississippi
name: Delta Health Center, Mississippi
name: Reuben V. Anderson Center for Justice at Tougaloo
First posted: 2024-04-11
Enrollment: 300
Sex: ALL
Minimum age (years): 21
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: The primary objective is to test whether a multi-level, community-engaged intervention with a food-is-medicine program in the Mississippi Delta can improve metabolic disease in specific minority groups. The basic study design is a cluster randomized controlled trial (RCT), with equal numbers of participants randomized to intervention and control groups. Each participant will be enrolled in the study for 12 months. The intervention involves regularly distributed fruit and vegetable produce boxes as well as nutrition education materials to the intervention group during their 12-month study period. The control group will receive produce boxes later, after their 12-month study participation has ended. Participants will be patients at participating Delta Health Center (DHC) clinics in Mississippi.
Primary purpose: TREATMENT

Brief summary: Though the Mississippi Delta has a rich agricultural history and some of the nation's most fertile soil, residents have experienced the legacy of slavery and economic exploitation through food insecurity and poverty for generations. This project focuses on Bolivar, Washington, and Sunflower, contiguous counties in the Delta that are designated as health disparity populations. Over 65% of the 100,000 residents are Black/African American and \~30% live at or below the poverty level. Obesity rates are high and the rate of diabetes is almost double the national average. Tufts University received a grant from the National Institute of Minority Health and Health Disparities to develop, test, and evaluate a Food is Medicine program in Mississippi. The Delta Growing a Resilient, Enriching, Equitable, Nourishing food System (GREENS) Food is Medicine (FIM) Project, is a collaborative project in Bolivar, Washington, and Sunflower counties in Mississippi. The intervention involves regularly distributed fruit and vegetable produce boxes as well as nutrition education materials to the intervention group. The control group will receive produce boxes later, after they complete study activities. The project's primary goal is to improve health outcomes by creating a FIM intervention. The Delta GREENS FIM Project aims to become a model for promoting nutrition security and management of chronic conditions in varied communities nationwide.

Detailed description: Though the Mississippi Delta has a rich agricultural history and some of the nation's most fertile soil, residents have experienced the legacy of slavery and economic exploitation through food insecurity and poverty for generations. In fact, about 77% of Mississippi counties meet the U.S. Department of Agriculture's definition of food deserts. This project focuses on Bolivar, Washington, and Sunflower, contiguous counties in the Delta that are designated as health disparity populations. Over 65% of the 100,000 residents are Black/African American and \~30% live at or below the poverty level. Obesity rates are high and the rate of diabetes is almost double the national average. Food is medicine programs -- health clinic mobile markets, produce prescription programs, and produce delivery - hold significant promise for addressing the alarming crisis of nutrition-related diseases. Across the U.S., Food is Medicine programs are in their infancy and accelerating at a rapid pace; since 2019, USDA has funded 116 produce prescription grants. However, no studies have evaluated the impact of food is medicine programs in a rigorous, randomized controlled trial measuring objective cardiometabolic risk factors among minority populations in communities with persistent disadvantage. Tufts University received a grant from the National Institute of Minority Health and Health Disparities to develop, test, and evaluate a Food is Medicine program in Mississippi. This study is focused on Delta Growing a Resilient, Enriching, Equitable, Nourishing food System (GREENS) Food is Medicine (FIM) Project. Delta GREENS Food is Medicine is a collaborative project in Bolivar, Washington, and Sunflower counties in Mississippi. The intervention involves regularly distributed fruit and vegetable produce boxes as well as nutrition education materials to the intervention group. The control group will receive produce boxes later, after they complete study activities. Participants will be patients at Delta Health Center (DHC) clinics in Mississippi. The project capitalizes on the past success of community-based efforts and decades of community-engaged research at Tufts University, including prior nutrition work in the Delta region. Despite its unique cultural and agricultural background, the Mississippi Delta displays ongoing health disparities rooted in historical racial inequality and poverty. By collaborating and building upon previous successes, the Delta GREENS FIM Project aims to address these challenges, and become a model for promoting nutrition security and management of chronic conditions in varied communities nationwide.

Eligibility criteria: Inclusion Criteria:

* Patient at participating Delta Health Center (DHC) clinics
* BMI: ≥ 25
* Hemoglobin A1C (HbA1c): \>5.7 to 8.5%, inclusive

Exclusion Criteria:

* Type 1 diabetes
* Current use of incretin agonists (e.g., semaglutide, dulaglutide, liraglutide)
* Uncontrolled hypertension:

  * Systolic blood pressure \> 160 mmHg
  * Diastolic blood pressure \> 100 mmHg
* Severe symptomatic cardiovascular disease
* Recent (6 months) history of:

  * Myocardial infarction
  * Percutaneous coronary intervention
  * Coronary artery bypass graft
  * Cerebrovascular disease
* Participant in diabetes, nutrition, or weight intervention research in the last 12 months
* Another family member or household member is a study participant
* History of bariatric surgery or considering bariatric surgery in the next year or prior bariatric surgery
* Lack of safe, stable residence and ability to store produce
* Lack of telephone
* Pregnancy/breastfeeding or intended pregnancy in the next year
* Drug or alcohol misuse that would impair the ability to complete study activities
* Known psychosis or major psychiatric illness that prevents participation in study activities
* Any other reason that in the investigators' best judgment places the participants at risk or increases likelihood of poor adherence

Primary outcomes:
measure: Change in hemoglobin A1c (HbA1c)
timeFrame: 12 month study period for each participant
Secondary outcomes:
measure: Change in cardiometabolic risk factor composite score
timeFrame: 12 month study period for each participant
measure: Change in BMI
timeFrame: 12 month study period for each participant
measure: Change in LDL cholesterol
timeFrame: 12 month study period for each participant
measure: Change in non-HDL cholesterol
timeFrame: 12 month study period for each participant
measure: Change in blood pressure
timeFrame: 12 month study period for each participant
measure: Change in nutrition security, assessed via a survey
timeFrame: 12 month study period for each participant
measure: Change in dietary intake of fruits and vegetables, assessed via a survey
timeFrame: 12 month study period for each participant
measure: Change in health care utilization, assessed via review of Electronic Health Records (EHR)
timeFrame: 12 month study period for each participant
measure: Change in food insecurity, assessed via a survey
timeFrame: 12 month study period for each participant
Other outcomes:
Locations:
city: Boston
country: United States
facility: Tufts University
state: Massachusetts
Study officials:
affiliation: Tufts University
name: Christina D Economos, PhD
role: PRINCIPAL_INVESTIGATOR
References: