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Can a brain game help you lose more weight?

NCT ID NCT04747886

Disease control Sponsor: Cedars-Sinai Medical Center 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 17, 2026 · Last updated Aug 18, 2026 · Updated 1 time

Summary

This pilot study explores whether adding a cognitive training game called PolyRules! to the WW (formerly Weight Watchers) online program can help adults with overweight or obesity lose more weight. Participants will either follow the WW program alone or combine it with the brain-training game. The study tracks changes in body mass index (BMI) over three months to see if the added training makes a difference.

What this could mean

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

Active substance
A cognitive training game called PolyRules! added to the WW (formerly Weight Watchers) online weight management program
What this could lead to
If it works, this could point toward a simple brain-training add-on that helps people stick to weight loss programs and improve results.
What could go wrong
This is a small pilot study, so results may not be conclusive. The cognitive training may not provide extra benefit beyond the standard WW program, and self-reported weights could be inaccurate.

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

34 people

The number who actually took part.

Started

Mar 2021

Finished

Jun 2022

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 years and older

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: * 18 years of age or older * Read, write and speak English with acceptable visual acuity * BMI between 25-40 kg/m\^2 Exclusion Criteria: * Currently enrolled in weight loss interventions or undergoing bariatric surgery * Pregnant women * Individuals with severe cognitive delays or visual/hearing impairment

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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.

Overweight and obesity

Contacts and locations

Locations

  • Pacific Design Center

    West Hollywood, California, 90069, United States

More trials for these conditions

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