Weight loss through friendship: a new trial tests spreading healthy habits via social networks

NCT ID NCT07798557

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Sep 01, 2026 · Last updated Sep 02, 2026 · Updated 1 time

Summary

This trial tests whether teaching Black women with obesity to share Mediterranean diet and lifestyle tips within their social networks leads to greater weight loss and healthier habits than a standard program. Researchers will compare two groups: one that follows the diet alone and one that also learns to spread the information to friends and family. The study includes 532 participants and their network members, measuring changes in weight, diet, and physical activity over 12 months.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
A behavioral program that teaches participants to share Mediterranean diet and lifestyle changes within their social networks
What this could lead to
If it works, this could point toward a low-cost, community-based strategy for weight management that spreads health benefits through social circles.
What could go wrong
The trial is early and relies on participants actively sharing information, which may not happen consistently. Results may not apply beyond the specific group studied.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 532 people

The number the study aims to enrol. It can still change while the study runs.

Started

Feb 2026

Expected to finish

Dec 2029

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

50 to 79 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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

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Conditions

The condition(s) this trial relates to.

Obesity obesity disorder Overweight

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

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  3. A doctor treating you

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Contacts and locations

Locations

  • University of Illinois Chicago

    RECRUITING

    Chicago, Illinois, 60608, United States

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