Clinical trial Recruiting at 1 site Interventional Ages 50 to 79

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.

More Obesity & Overweight trials

Quick facts

Study typeInterventional
Ages50 Years to 79 Years
SexAll
Enrollment532 (estimated)
SponsorUniversity of Illinois Chicago
Academic / other
Locations1 site (Chicago, Illinois)
StatusRecruiting
StartedFebruary 1, 2026
Main results expectedJune 30, 2029
Study endsDecember 31, 2029
Registry record updatedSeptember 1, 2026
Trial IDNCT07798557 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

  • University of Illinois Chicago
    Chicago, Illinois, United States
    Recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.