Effectiveness of the Brazilian Diabetes Prevention Program

NCT ID: NCT06426277

Last Updated: 2025-01-20

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

1590 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-12-01

Study Completion Date

2029-12-31

Brief Summary

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The aim of this multicenter, randomized controlled trial is to assess the effectiveness of the Brazilian Diabetes Prevention Program (delivered face-to-face or via e-health) in preventing type 2 diabetes (T2D) in at least 1,590 adults at high risk of T2D over a 3-year follow-up period. Our outcomes include the incidence of T2D, body weight (kg), BMI, glycemic biomarkers, use of antidiabetic drugs, the proportion of individuals achieving controlled glycemia or HbA1c levels without medication, diet quality, moderate-to-vigorous physical activity (min/week), prevalence of physical inactivity, sleep quality, perceived stress, alcohol consumption, smoking, and quality of life. In addition, social, cultural, educational, and geographical factors at the community level will be analyzed throughout the follow-up to determine their association with the incidence of T2D.

Detailed Description

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This is a multicenter controlled randomized trial coordinated by the Hospital Beneficência Portuguesa in São Paulo-Brazil and made possible by PROADI-SUS (SUS Institutional Development Support Program).

Conditions

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Prediabetic State Pre Diabetes

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Brazilian Diabetes Prevention Program (face-to-face care)

The PROVEN-DIA program is a structured lifestyle change initiative organized into modules that include nutrition, physical activity, and self-care. Based on materials already made available by the Brazilian Ministry of Health, such as the Dietary Guidelines for the Brazilian Population and the Physical Activity Guide for the Brazilian Population, we developed a protocol that considers health status, lifestyle habits, and motivation to set lifestyle change goals.

Specifically, in this arm of the study, PROVEN-DIA will be delivered through in-person individual and group sessions, as well as virtual interactions with coaches/facilitators.

There will be 23 in-person visits and 15 virtual contacts.

Group Type EXPERIMENTAL

Brazilian Diabetes Prevention Program (face-to-face care)

Intervention Type BEHAVIORAL

A Program structured in 28 visits (in group and individual) and 21 contacts (through phone calls or video calls) to guide the improvement of diet quality, self-care, and regular practice of physical activity

Brazilian Diabetes Prevention Program (remote care)

The PROVEN-DIA program is a structured lifestyle change initiative organized into modules that include nutrition, physical activity, and self-care. Based on materials already made available by the Brazilian Ministry of Health, such as the Dietary Guidelines for the Brazilian Population and the Physical Activity Guide for the Brazilian Population, we developed a protocol that considers health status, lifestyle habits, and motivation to set lifestyle change goals.

Specifically, in this arm of the study, PROVEN-DIA will be delivered 100% virtual.

There will be 38 virtual contacts.

Group Type ACTIVE_COMPARATOR

Brazilian Diabetes Prevention Program (remote care)

Intervention Type BEHAVIORAL

A Program structured in 49 contacts delivered through telehealth (through phone calls or video calls between professional and participant) to guide the improvement of diet quality, self-care, and regular practice of physical activity

Control Group

Nutritional guidance is based on the Dietary Guidelines for the Brazilian Population, and physical activity recommendations follow the Physical Activity Guide for the Brazilian Population. In other words, this group uses the same tools to guide patients as the PROVEN-DIA intervention. However, it is not structured as a program with a protocol to help professionals set lifestyle change goals with patients. This group simulates the current standard of care in primary healthcare in Brazil.

Group Type ACTIVE_COMPARATOR

Diet

Intervention Type BEHAVIORAL

Hypocaloric diet prescription

Interventions

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Brazilian Diabetes Prevention Program (face-to-face care)

A Program structured in 28 visits (in group and individual) and 21 contacts (through phone calls or video calls) to guide the improvement of diet quality, self-care, and regular practice of physical activity

Intervention Type BEHAVIORAL

Diet

Hypocaloric diet prescription

Intervention Type BEHAVIORAL

Brazilian Diabetes Prevention Program (remote care)

A Program structured in 49 contacts delivered through telehealth (through phone calls or video calls between professional and participant) to guide the improvement of diet quality, self-care, and regular practice of physical activity

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Be 18 years or older (no maximum age for being eligible)
* Have a body mass index (BMI) between 25 and 34,9kg/m²
* Have, at least, one electronic device (includes any of the following devices):

* Computer
* Laptop/notebook
* Tablet
* Smartphone
* Have access to internet (broadband, 3G, 4G, 5G, among others) Without previous nutritional counseling (within the 6 months prior to recruitment/randomization/intervention) Without supervision by a Physical Education Professional (Personal Trainer) in the past 6 months
* Living near the research center (at maximum 60 minutes)
* Had a blood test result in the prediabetes range within the last three months prior to the recruitment/randomization/intervention (includes any of these tests and results):

* Hemoglobin levels (HbA1c): 5.7-6.4%
* Blood glucose 2 hours after an oral glucose tolerance: 140-199 mg/dL

Exclusion Criteria

* Diagnosis of Diabetes Mellitus
* Underlying disease likely to limit life expectancy and/or increase the risk of interventions influencing the risk of developing T2D
* Diagnosis of Renal Disease
* Diagnosis of Pulmonary Disease
* Gastrointestinal Disease
* Secondary prevention for Cardiovascular Disease
* Endocrine Diseases
* Weight loss exceeding 10% in the last 6 months (except postpartum-related)
* Uncontrolled Hypertension
* Diagnosis of Polycystic Ovary Syndrome (self-reported)
* Patients undergoing treatment for Tuberculosis
* Presence of diseases that may severely reduce life expectancy or the ability to participate in the study
* Pregnant or breastfeeding women
* Severe psychiatric disorders that, in the opinion of the clinical team, hinder participation in the program
* Acute or chronic excessive alcohol consumption
* Congestive Heart Failure (CHF) with a New York Heart Association Functional Class (NYHA) \> 2
* Need for referral to a cardiologist according to the Physical Activity Readiness Questionnaire (PAR-Q)
* Current or recent participation (within the last six months) in another clinical trial that impacts the interventions and/or is associated with the study outcomes (in case of doubt, contact the coordinating center)
* Likely relocation away from the research collaborating center within the next 3 years
* Another household member is a participant or a team member of the PROVEN-DIA study
* Unwillingness to accept treatment assignment by randomization and/or refusal to participate in the study (signing the Informed Consent Form)
* Continuous use of the following medications:

Corticosteroids other than topical, ophthalmic, or inhaled preparations Antineoplastic agents Psychoactive agents Other medications.

• Participant from the pilot Randomized Clinical Trial (Brazilian Diabetes Prevention Program: Pilot Study (PROVEN-Dia), NCT05689658)
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Beneficência Portuguesa de São Paulo

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Angela C Bersch-Ferreira, PhD

Role: PRINCIPAL_INVESTIGATOR

Hospital Beneficência Portuguesa de São Paulo

Locations

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Hospital de Clínicas de Goiás - UFG

Goiânia, Goiás, Brazil

Site Status RECRUITING

Universidade Federal de Viçosa

Viçosa, Minas Gerais, Brazil

Site Status RECRUITING

Countries

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Brazil

Central Contacts

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Angela C Bersch-Ferreira, PhD

Role: CONTACT

(55 11) 988295600

Raira Pagano

Role: CONTACT

5511954729698

Facility Contacts

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Ana Paula Perillo, PhD

Role: primary

55 (62) 98414-6969

Josefina Bressan, PhD

Role: primary

55 31 98606-3903

Other Identifiers

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PROVEN-DIA ECR

Identifier Type: -

Identifier Source: org_study_id

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