- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05962372
Culturally Adapted Dietary Clinical Trial in PR (PRECISION)
April 16, 2024 updated by: Josiemer Mattei, Harvard School of Public Health (HSPH)
Culturally Adapted Dietary Clinical Trial in PR: Puerto Rico Evaluation of a Culturally Informed Sustainable Intervention for Optimal Nutrition (PRECISION)
This project will determine whether a diet culturally adapted to adults in Puerto Rico can effectively decrease cardiometabolic risk factors.
This will help define a culturally-appropriate, feasible, and sustainable diet intervention aimed at reducing cardiovascular, type 2 diabetes, and obesity outcomes.
Study Overview
Status
Recruiting
Conditions
Intervention / Treatment
Detailed Description
This intervention will culturally tailor a diet to the adult population in Puerto Rico based on staple foods as well as culturally appropriate strategies to reduce cardiometabolic risk factors.
Based on preliminary results from studies on the island, investigators will conduct a 24-month, 2-arm intervention among 250-350 adults (125-175 per arm) ages 30-65 living in Puerto Rico with at least 1 of 5 cardiometabolic risk factors.
The two arms are (1) intervention group with culturally-tailored portion-control Mediterranean Diet-like advice through monthly individual counseling for 12 months, reinforced with daily text messages for 12 months, and a monthly household supply of legumes, vegetable oils, and locally sourced assorted fruit and vegetables for 18 months; (2) control arm with portion-control standard non-tailored nutritional counseling in monthly individual sessions for 12 months, reinforced with daily text messages for 12 months, and monthly supermarket vouchers for 18 months.
From months 18-24, we will monitor behavior maintenance (no food/voucher or counseling), with support from the nutritionist, and cues-to-action texts.
Investigators will measure changes in cardiometabolic risk factors and metrics of eating behaviors and psychological factors.
The two co-primary outcomes are changes in ASCVD score and cardiometabolic improvement score.
Study Type
Interventional
Enrollment (Estimated)
350
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: Gabriela Ruiz, MS, RDN
- Phone Number: 787-309-4207
- Email: gruiz@fdipr.com
Study Contact Backup
- Name: Sylvia Lillquist, RDN
- Phone Number: 954-243-1174
- Email: slillquist@fdipr.com
Study Locations
-
-
-
San Juan, Puerto Rico, 00926
- Recruiting
- FDI Clinical Research
-
Sub-Investigator:
- Jose F Rodriguez-Orengo, PhD
-
Contact:
- Gabriela Ruiz, MS, RDN
- Phone Number: 787-309-4207
- Email: gruiz@fdipr.com
-
Contact:
- Sylvia Lillquist, RDN
- Phone Number: 954-243-1174
- Email: slillquist@fdipr.com
-
-
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
Yes
Description
Inclusion Criteria:
- Age 30-65y old at the time of enrollment
- Non-institutionalized
- Living in PR at the time of recruitment and for at least the previous year and not planning to move from the island within the next 3 years
- Able to answer questions without assistance
- Having a cellphone with the capacity to receive text messages and be willing to receive daily text messages from the study on the designated cellphone number
Having at least one of the following:
- elevated BMI
- elevated waist circumference
- self-reported physician-diagnosed hypertension or use of hypertension medication or measured high blood pressure at the baseline visit
- self-reported physician-diagnosed pre-diabetes or measured pre-diabetes at the baseline visit
- self-reported physician-diagnosed dyslipidemia or use of lipid-lowering agents or laboratory values confirming dyslipidemia
Exclusion Criteria:
- Under 30 or over 65 years of age (on the day of the interview).
- Currently not living in Puerto Rico or not lived on the island for at least 1 year or planning to move within 3 years
- Institutionalized
- Not able to answer questions without assistance
- Not having at least 1 of the five listed metabolic criteria
- Self-reported physician-diagnosed type 1 or type 2 diabetes or use of diabetes medication (including insulin) or diabetes-diagnosis values confirmed by laboratory
- Self-reported pregnancy
- Gastrointestinal or chronic condition that would impact eating behaviors or nutritional status
- Intolerance or allergies to legumes (i.e.: beans and nuts), vegetable oils (i.e.: corn, olive, canola), or fresh produce
- Living with another person participating in the study
- Participating in another research study that conflicts with PRECISION
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: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Intervention
Intervention group will receive culturally-tailored portion-control Mediterranean-like advice through monthly individual counseling for 6 months, reinforced with daily text messages for 12 months, and a monthly household supply of legumes (i.e., beans and peanuts), vegetable oils (i.e., olive oil + a blend of canola and soybean), and locally sourced assorted fruit and vegetables for 18 months.
From months 18 to 24, we will monitor maintenance of behavior (no food or counseling) with support from the nutritionist available.
|
Puerto Rico-tailored education includes strategies for healthy eating, preferences for traditional healthy foods, recommendations for limiting unhealthy traditional foods, portion sizes, etc.
|
Active Comparator: Control
Control group will receive portion-control standard non-tailored nutritional counseling in monthly individual sessions for 6 months, reinforced with daily text messages for 12 months, and monthly supermarket vouchers (no foods) for 18 months.
From months 18 to 24, we will monitor maintenance of behavior (no voucher or counseling), with support from the nutritionist available.
|
Standard healthy eating education includes strategies, foods, portions, and cooking and eating tips included in the My Plate For A Healthy Puerto Rico dietary recommendations.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
10-year risk score for a first atherosclerotic CVD event (ASCVD score)
Time Frame: 6; 12; 18; 24 months
|
Estimate the change in first atherosclerotic CVD event (ASCVD) score; the score is calculated using the Pooled Cohort Equation which accounts for biological sex, age, race, total cholesterol, HDL-C, systolic blood pressure, treatment for high blood pressure, current diabetes diagnosis, and smoking status.
Scores are expressed as percentage (0-100) with higher scores indicative of higher 10-year risk for ASCVD event.
It is categorized as low-risk <5%; borderline risk 5% to 7.4%; intermediate risk 7.5% to 19.9%; and high risk ≥20%.
|
6; 12; 18; 24 months
|
Cardiometabolic Improvement Score (CIS)
Time Frame: 6; 12; 18; 24 months
|
Estimate the change in the score; calculated as the added number of risk factors changed over a predefined value; range of 0 to 10; from less to more improvement.
|
6; 12; 18; 24 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Changes in diet quality score
Time Frame: 6; 12; 18; 24 months
|
Determine the change in score of short diet quality screener (range 18-54; from lowest to highest quality)
|
6; 12; 18; 24 months
|
Changes in diet satisfaction: diet satisfaction scale
Time Frame: 6; 12; 18; 24 months
|
Determine the change in the score of the Diet Satisfaction Questionnaire (DSat-45) (range 45-225; from lowest to highest satisfaction) and its summed seven subscales (ranges 5-40)
|
6; 12; 18; 24 months
|
Changes in intake of pre-specified food groups (fruit; vegetables; legumes; oils; meat; fat)
Time Frame: 6; 12; 18; 24 months
|
Determine the change in servings/week of food groups
|
6; 12; 18; 24 months
|
Change in levels of waist circumference
Time Frame: 6; 12; 18; 24 months
|
Estimate the change in the value of waist circumference (cm)
|
6; 12; 18; 24 months
|
Change in levels of BMI
Time Frame: 6; 12; 18; 24 months
|
Estimate the change in the value of body mass index (kg/m2)
|
6; 12; 18; 24 months
|
Change in levels of blood pressure risk factors
Time Frame: 6; 12; 18; 24 months
|
Estimate the change in the value of systolic and diastolic blood pressure (mmHg)
|
6; 12; 18; 24 months
|
Change in levels of metabolic risk factors
Time Frame: 6; 12; 18; 24 months
|
Estimate the change in the value of glucose, triglycerides, total cholesterol, LDL, HDL (mg/dL)
|
6; 12; 18; 24 months
|
Change in food security status
Time Frame: 6; 12; 18; 24 months
|
Estimate the change in food security status assessed by the USDA Food Security Module
|
6; 12; 18; 24 months
|
Change in self-efficacy score
Time Frame: 6; 12; 18; 24 months
|
Estimate the change in self-efficacy score assessed by the Nutritional Self-Efficacy Scale
|
6; 12; 18; 24 months
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in social connectedness score
Time Frame: 6; 12; 18; 24 months
|
Estimate the change in social connectedness score from the Social Connectedness Scale/Social Assurance Scale
|
6; 12; 18; 24 months
|
Change in social support score
Time Frame: 6; 12; 18; 24 months
|
Estimate the change in social support score from the 12-item Social Support Scale
|
6; 12; 18; 24 months
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Investigators
- Study Director: Jose F Rodriguez Orengo, PhD, FDI Clinical Research
- Principal Investigator: Josiemer Mattei, PhD, MPH, Harvard Chan School of Public Health
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)
April 16, 2024
Primary Completion (Estimated)
April 16, 2029
Study Completion (Estimated)
April 16, 2029
Study Registration Dates
First Submitted
July 14, 2023
First Submitted That Met QC Criteria
July 21, 2023
First Posted (Actual)
July 27, 2023
Study Record Updates
Last Update Posted (Actual)
April 18, 2024
Last Update Submitted That Met QC Criteria
April 16, 2024
Last Verified
April 1, 2024
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- IRB23-0951
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
YES
IPD Plan Description
IPD will be managed and distributed observing NIH and IRB policies on the dissemination and sharing of research results.
Study information and requests for data will be available immediately upon the data being de-identified and properly revised for quality control by contacting study investigators.
IPD Sharing Time Frame
10 years
IPD Sharing Access Criteria
The requested data will be shared with investigators via a secured, password-protected software website, upon request.
IPD Sharing Supporting Information Type
- STUDY_PROTOCOL
- ICF
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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