- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06412016
Urban Gardening and Peer Nutritional Counseling for People With HIV and Food Insecurity (ProMeSA)
May 13, 2024 updated by: University of Massachusetts, Amherst
ProMeSA: Urban Gardening and Peer Nutritional Counseling to Improve HIV Care Outcomes Among People With Food Insecurity in the Dominican Republic
The investigators are conducting a fully powered cluster randomized controlled trial (RCT) of a culturally appropriate, multicomponent intervention combining peer nutritional counseling with urban gardening among people with human immunodeficiency virus (HIV) in the Dominican Republic (DR) to assess efficacy, analyze mediators of effects, and evaluate detailed process data to inform scale-up.
The study will examine the impact of the intervention on participants' HIV clinical outcomes (HIV viral load, antiretroviral therapy adherence, and HIV care retention) as well as intermediate outcomes such as food security and HIV-related stigma.
Study Overview
Status
Not yet recruiting
Conditions
Intervention / Treatment
Detailed Description
HIV and food insecurity pose severe and interrelated problems in Latin America and the Caribbean, including in the Dominican Republic (DR), where HIV ranks as one of the top 5 causes of death and our prior studies have found that nearly 70% of people with HIV (PWH) have moderate or severe food insecurity.
Despite the established, detrimental role of food insecurity on poor HIV treatment outcomes, evidence on sustainable interventions that address the cycle of food insecurity and poor HIV health is scarce.
To address this gap, the investigators developed and piloted Proyecto para Mejorar la Seguridad Alimentaria (ProMeSA or Project to Improve Food Security in English), an integrated urban gardens and peer nutritional counseling intervention, and found it feasible, acceptable, and with preliminary efficacy at 6 and 12 months of improving food security and HIV virologic suppression.
The purpose of this 5-year study is to conduct a fully powered cluster randomized controlled trial (RCT) of ProMeSA to assess intervention efficacy evaluated over a longer period (18 months) as well as mediators and barriers and facilitators to intervention uptake, implementation, and sustainability.
The specific aims are: (1) Determine the efficacy of an integrated urban gardens and peer nutritional counseling intervention on the primary outcome of HIV viral suppression [undetectable HIV viral load (VL)] and secondary outcomes of antiretroviral therapy (ART) adherence and HIV care retention care among people with food insecurity across diverse regions in the DR; (2) Examine the intervention effects on intermediate outcomes posited to mediate the impact of ProMeSA on ART adherence, care retention, and viral suppression; (3) Evaluate process-related factors associated with intervention uptake and implementation (facilitators, barriers, fidelity, and replication costs) to inform future scale-up.
The trial will include 20 HIV clinics randomized to intervention or usual care control (n=25 per clinic; 500 total study participants).
VL and other key outcomes will be assessed at baseline, and 6-, 12- and 18-months.
Following the investigators' intervention causal framework and pilot findings, they hypothesize that ProMeSA will improve food security and diet quality and reduce stigma and competing needs, which in turn will improve HIV clinical outcomes.
The predominant causal paths identified will inform tailoring ProMeSA to enhance impact in future dissemination and implementation.
In addition, the investigators will collect extensive quantitative and qualitative data on intervention implementation and participant experiences with the intervention across diverse settings and participants to inform scale-up.
The study involves a partnership among researchers from the University of Massachusetts Amherst, University of California, San Francisco, RAND, and the Universidad Autonóma de Santo Domingo as well as the Dominican Ministries of Agriculture and Public Health, the Dominican National HIV/AIDS Council, and the United Nations World Food Program.
To the investigators' knowledge, this will be the first full-scale trial to integrate nutritional counseling with food-generating activities among PWH with food insecurity, in support of national and international goals to achieve viral suppression and reduce the disease- and economic burden of HIV.
Study Type
Interventional
Enrollment (Estimated)
500
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Kathryn P Derose, PhD, MPH
- Phone Number: 4135454202
- Email: kpderose@umass.edu
Study Contact Backup
- Name: Kartika Palar, PhD, MA
- Phone Number: 4152067159
- Email: Kartika.Palar@ucsf.edu
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
No
Description
Inclusion Criteria:
- registered at one of the 20 HIV clinics in the study;
- age 18 or older;
- having initiated ART at least 6 months ago;
- detectable viral load in the previous 12 months based on medical records and/or evidence of adherence problems (missed clinic visits, delays in picking up antiretrovirals);
- moderate or severe household food insecurity
- physically able to plant and maintain an urban garden; stable housing and space for a garden (subjectively assessed by participants after hearing a description of what is involved)
- planned residency in the local area for the duration of the study
Exclusion Criteria:
Does not meet above criteria
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Supportive Care
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Peer Nutritional Counseling + Urban Gardening
Participants in the intervention clinics will receive: 1) nutritional counseling from peer counselors in their clinic (4 sessions administered); 2) training from the Ministry of Agriculture on how to plant and maintain a garden in their home (2 group training workshops and monthly individual follow-up); 3) low-cost tanks for water storage to participants whose communities only have water on certain days; 4) access to community gardens; and 5) two cooking and nutrition workshops.
|
Peer nutritional counseling and urban gardens
|
No Intervention: Usual Care Control
Participants in the control clinics will receive their usual care from the clinic.
After 18-month follow-up, they will be offered the opportunity to receive the intervention.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in HIV viral load
Time Frame: Change in viral load between baseline and months 6, 12, and 18
|
Change in viral load
|
Change in viral load between baseline and months 6, 12, and 18
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Antiretroviral therapy adherence
Time Frame: 6, 12 and 18 months
|
Self-reported adherence and objective adherence verified through pharmacy refills
|
6, 12 and 18 months
|
HIV care retention
Time Frame: 6, 12, and 18 months
|
Self-reported missed clinic visits verified through clinic records
|
6, 12, and 18 months
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Food Insecurity
Time Frame: 6, 12 and 18 months
|
Self-reported food security using the Latin American and Caribbean Food Security Scale to assess household food security over the past 90 days.
Scores range from 0 to 15 for households with children (0-8 for households without children) with higher scores meaning worse outcome and are used to classify households into 4 categories: "food secure," "mild food insecurity, "moderate food insecurity" and "severe food insecurity."
|
6, 12 and 18 months
|
Internalized HIV Stigma
Time Frame: 6, 12 and 18 months
|
Self-reported internalized stigma will be assessed using an 8-item scale validated previously in the DR.
Answers use a 4-point Likert scale (strongly disagree to strongly agree) assessing agreement with statements measuring negative self-perceptions related to HIV; higher scores indicated worse internalized stigma, range 0-32.
|
6, 12 and 18 months
|
Experienced HIV Stigma (Discrimination)
Time Frame: 6, 12 and 18 months
|
Self-reported experienced stigma will be assessed using 11 items on reported loss of job, denial of health and other social services, and being verbally harassed or physically abused as a result of living with HIV (with responses of "yes/no").
This scale been validated in the DR previously and examined both as continuous (range 0-11, with higher scores meaning worse outcome) and dichotomously (any experienced stigma vs. none).
|
6, 12 and 18 months
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Collaborators
Investigators
- Principal Investigator: Kathryn P Derose, PhD, MPH, University of Massachusetts, Amherst
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Estimated)
May 20, 2024
Primary Completion (Estimated)
November 30, 2026
Study Completion (Estimated)
May 31, 2027
Study Registration Dates
First Submitted
May 8, 2024
First Submitted That Met QC Criteria
May 8, 2024
First Posted (Actual)
May 14, 2024
Study Record Updates
Last Update Posted (Actual)
May 16, 2024
Last Update Submitted That Met QC Criteria
May 13, 2024
Last Verified
May 1, 2024
More Information
Terms related to this study
Other Study ID Numbers
- R01MH131447 (U.S. NIH Grant/Contract)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
YES
IPD Plan Description
The final dataset will include self-reported, biometric, chart abstraction, pharmacy refill, and clinical outcome variables.
Following publication of the main paper(s) for this study and the grant end-date, the investigators will make the data publicly available in the form of an electronic database for researchers who successfully complete a registration process.
Data will be de-identified and will not contain any direct identifiers or indirect identifiers.
The investigators will provide documentation in the form of a codebook in which each variable name and response options are defined.
As part of the registration process, users must agree to the conditions of use governing access to the public release data, including restrictions against attempting to identify study participants, destruction of the data after analyses are completed, reporting responsibilities, restrictions on redistribution of the data to third parties, and proper acknowledgement of the data resource.
IPD Sharing Time Frame
Data will become available after publication of study results, approximately 2032 for five years
IPD Sharing Access Criteria
Users must submit brief proposals regarding intended use of the data; the study team will determine the scientific soundness of the proposal, as well as whether adequate data protections in place, as part of the decision for the researcher to be able to access the public use dataset.
IPD Sharing Supporting Information Type
- SAP
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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