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Social network based weight program for Black American women with obesity

Tests a social network approach to weight management in women with obesity.

Key facts

Who runs it
University of Illinois Chicago
Where
Chicago, United StatesSee the site
Trial code
Registry title
BRIDGE & Friends Trial
Status
Recruiting
People taking part
532 people, planned
Started
1 Feb 2026
Expected to end
31 Dec 2029
Type of study
Interventional, 2 groupsOne group gets an existing treatment, for comparison.
Treatments tested
  • Social Network Curriculum
Record updated
1 September 2026

Who can take part

AI summary

From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.

The trial is looking for adults aged 50 to 79 who have obesity and live in the Chicago area. It tests a Mediterranean diet weight-loss program with a social network approach.

Age
50 to 79 years
Sex
All sexes can join.
Disease stage
Obesity, with a BMI of 30 to 50.
Earlier treatment
People who had cancer treatment in the past 12 months, or who had bariatric surgery, cannot join.

Main reasons for not taking part

  • Severe ischemic heart disease
  • Severe pulmonary disease
  • Bariatric surgery
  • Cancer treatment within the past 12 months
  • Already following a Mediterranean diet

The registry criteria, word for word

Show all 12 criteriaShow less

Who can take part

  • 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

Who cannot take part

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

Check if you might fit

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 50 and 79 years old?

Where in United States

  • University of Illinois ChicagoChicago, United StatesContact: Lara Blumstein, MATaking people

About the trial

What the trial wants to find out

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.

Read full original descriptionShow less

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).

The 2 groups in the trial

  • MD-WLExisting treatment, for comparison

    Mediterranean Diet Weight Loss

    Treatment: Social Network Curriculum

  • MD-WL SNExisting treatment, for comparison

    Mediterranean Diet Weight Loss Social Networks

    Treatment: Social Network Curriculum

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Weight Management and Black American Women: Targeting Social Networks as a Strategy to Improve Outcomes (BRIDGE & Friends)
Plain-language title
Social network based weight program for Black American women with obesityGenerated from the registry record. The registry title is the official one.
AI summary
From the trial's eligibility criteria. Read by machine on 12 November 2026.
Fit questions
Built from NCT07798557, who can take part
Record updated
1 September 2026