BRIDGE & Friends Trial

Weight Management and Black American Women: Targeting Social Networks as a Strategy to Improve Outcomes (BRIDGE & Friends)

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT07798557

Enrollment

532

Registered

2026-09-01

Start date

2026-02-01

Completion date

2029-12-31

Last updated

2026-09-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obesity & Overweight

Brief summary

Aim 1. Conduct a 6-month (24-session) RCT comparing MedDiet-WL to MedDiet-SN among 268 older adults with obesity (50-79 years, BMI = 30-50 kg/m²). We hypothesize that 1) Participants in MedDiet-SN will show improvements in bodyweight/BMI and body fat compared to MedDiet-WL at post-intervention (6-months), 2) Participants in MedDiet-SN will show improvements in diet (diet quality) and physical activity (step counts) compared to MedDiet-WL at post-intervention (6-months), and 3) Participants in MedDiet-SN will maintain these improvements at 12-months. Aim 2. Characterize and compare differences in weight management information dissemination by 268 randomized to MedDiet-WL and MedDiet-SN. We hypothesize that MedDiet-SN participants will share information to more network members compared to participants in MedDiet-WL. Aim 3. Compare MedDiet-SN and MedDiet-WL in 268 network members. We hypothesize that MedDiet-SN network members will show, greater improvements in BMI, body fat, diet, and physical activity than MedDiet-WL network members at 6 months. We will explore how effects may vary by network (e.g., density, relationships), and messaging characteristics (e.g., modality).

Interventions

BEHAVIORALSocial Network Curriculum

Empowerment to share lifestyle change information within social networks

Study design

Allocation

RANDOMIZED

Intervention model

SINGLE_GROUP

Primary purpose

TREATMENT

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

50 Years to 79 Years

Healthy volunteers

Yes

Inclusion criteria

* 50-79 yrs old, * BMI 30-50 * Willing to participate in all procedures * Understand English * Willing to make changes to diet and lifestyle * Have access to a phone * Plan to reside in the Chicago area for the next 12 months

Exclusion criteria

* Severe ischemic heart disease * Severe pulmonary disease * Bariatric surgery * Cancer treatment within the past 12 months * Current adherence to MedDiet based on dietary screening

Design outcomes

Primary

Measure	Time frame	Description
Physical Activity	6 months	Godin-Shephard Leisure Time Physical Activity Questionnaire
Anthropometrics, Body Fat	6 months	BMI, body fat measure by stadiometer and scale
Dietary Intake	6 months	Vioscreen Food Frequency Questionnaire
Mediterranean Diet adherence	6 months	Mediterranean Eating Patterns for Americans (MEPA) is a 16-item screener that assesses adherence to a MedDiet pattern

Secondary

Measure	Time frame	Description
Community Network Factors	6 months	General Social Survey Instrument, including support network size, characteristics, health information dissemination

Countries

United States

Contacts

CONTACTLara Blumstein, MA

lbb@uic.edu+1 77304903311

CONTACTMarian Fitzgibbon, PhD