Bridge & Friends: MedDiet with Social Networks for obesity in older adults
Official title: Weight Management and Black American Women: Targeting Social Networks as a Strategy to Improve Outcomes (BRIDGE & Friends)
Run by University of Illinois Chicago · NCT07798557 · Data updated 2026-11-12
This study tests whether adding a social network component to a Mediterranean diet with weight loss helps older adults with obesity lose more weight and improve diet and activity.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 50 Years to 79 Years |
| Sex | All |
| Enrollment | 532 (estimated) |
| Sponsor | University of Illinois Chicago Academic / other |
| Locations | 1 site (Chicago, Illinois) |
| Status | Recruiting |
| Started | February 1, 2026 |
| Main results expected | June 30, 2029 |
| Study ends | December 31, 2029 |
| Registry record updated | September 1, 2026 |
| Trial ID | NCT07798557 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults 50-79 with BMI 30-50 who are English-speaking, willing to change diet and lifestyle, have phone access, and plan to stay in the Chicago area for 12 months.
✕Probably not a fit
Participants with severe ischemic or pulmonary disease, recent cancer treatment, or current adherence to MedDiet may receive less or no benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This randomized trial assigns 268 adults aged 50-79 with obesity to either MedDiet-WL (Mediterranean diet with weight loss) or MedDiet-SN (Mediterranean diet with a social-network component) for 6 months. Researchers will compare changes in weight, BMI, body fat, diet quality, and physical activity between groups, and will see if benefits persist at 12 months. The study also examines how participants share weight-management information within their networks and whether network members experience similar changes. The social-network arm aims to amplify information dissemination and behavior change beyond the individual participant. The study takes place in Chicago, led by the University of Illinois Chicago.
Why it matters
Potential benefit: If successful, MedDiet-SN could offer a scalable way to enhance weight loss and lifestyle changes through social networks.
How similar studies have gone: Previous work suggests social-component approaches can enhance behavior change, but this exact network-based MedDiet strategy is being tested here.
Who can join: the full rules
Show full inclusion / exclusion criteria
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
Where it's running
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University of Illinois Chicago
Chicago, Illinois, United States Recruiting
Study contacts
- Study coordinator: Lara Blumstein, MA
- Email: lbb@uic.edu
- Phone: +1 77304903311
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.