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Smartphone nudges help low-income adults shed pounds

NCT ID NCT04353258

Symptom relief Sponsor: University of Connecticut Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested whether a 12-month weight loss program delivered by smartphone, using behavioral economics tricks, could help economically disadvantaged adults lose weight. 195 participants with obesity and low income were split into two groups: one got the standard mobile program, the other got extra behavioral economics features. The main goal was to see how much weight each group lost.

What this could mean

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

Active substance
Behavioral economics weight loss program delivered via mobile phone
What this could lead to
If successful, this approach could provide an effective, low-cost weight loss option for people with limited financial resources.
What could go wrong
This is a completed trial, but results may not apply to all groups. Weight loss programs often have mixed long-term success, and the mobile-only format may not suit everyone.

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

195 people

The number who actually took part.

Started

Sep 2021

Finished

Dec 2024

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

18 to 75 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * Age between 18-75 * BMI between 25-55kg/m2 * All sexes * All racial/ethnic groups * Low SES and/or report qualifying for federal, state or local benefits * Have a smartphone and willing to use for research purposes Exclusion Criteria: * \<18-75\>years of age * Report being unable to walk 2 blocks without stopping * Are currently participating in weight loss treatment, have a history of bariatric surgery, or lost ≥5% in the past 6-months * Are pregnant or plan to become pregnant within 1 year * Report a heart condition, chest pain during periods of rest or activity, or loss of consciousness on the Physical Activity Readiness Questionnaire * Report a medical condition that could jeopardize their safety in a weight control program with diet and exercise guidelines * Have diabetes and are on insulin * Report a medical condition that could jeopardize their safety in a weight loss program with diet and exercise guidelines * Report conditions that, in the judgment of the PI, would render them unlikely to follow the protocol (e.g., relocation, dementia, unable to read and write in English) * Report unable to read and write English

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Conditions

The condition(s) this trial relates to.

Obesity obesity disorder Weight Loss

As listed by the trial registrant

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

Obesity

Contacts and locations

Locations

  • UConn Weight Management Research Lab

    Hartford, Connecticut, 06103, United States

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Other studies related to the condition(s) this trial covers.