WW + PolyRules! / Overweight and Obesity / WW Only · Interventional Study

Inhibitory Control Adult Weight Management

ClinicalTrials.gov · August 17, 2026

Preliminary Why this matters to you Expert discussion

Early or partial results. Treat as a signal, not a conclusion.

AI Summary

This is a completed pilot study registration comparing Weight Watchers alone versus Weight Watchers supplemented with a cognitive training game (PolyRules!) in 34 adults with overweight or obesity. No results are reported in this registry record, so the efficacy or benefit of the intervention cannot be assessed from this source.

What was studied

Interventional, Randomized, Parallel, Open label, Prevention purpose. Overweight and Obesity; age from 18 Years; accepts healthy volunteers. Intervention: WW + PolyRules!. Compared with: WW Only — Active Comparator. n = 34. 1 site: United States.

Key findings

Safety

Safety was not reported in the material analysed. Check the source before drawing any conclusion about harm.

Who this may help

The source did not state who this applies to in practice.

Plain-language summary

This is a completed pilot study with small sample (n=34) testing a behavioral intervention adjunct; results are not reported in this registry record.

Study design

As stated by the source record.

MethodsPrimary outcome measure: BMI at Three Months (assessed at Baseline, 3 months)

DesignInterventional, Randomized, Parallel, Open label, Prevention purpose

PopulationOverweight and Obesity; age from 18 Years; accepts healthy volunteers

Sample size34

InterventionWW + PolyRules!

ComparatorWW Only — Active Comparator

Setting1 site: United States

Reported figures

Quoted from the source exactly as published.

Sample size34

Primary outcome measureBMI at Three Months

Follow-up duration3 months

Caveats

This is a registry record; no results or outcome data are reported.
Recruitment status marked complete but results not posted; outcomes remain unreported.
No information on allocation concealment, blinding, or loss to follow-up.
Small pilot sample limits generalizability and power.

Evidence assessment

Graded across the dimensions that decide whether you should act, each from what the source actually supports. There is no single score, and where a dimension was not assessed it says so.

Study design

moderate

Interventional behavioral pilot with two arms; no phase designation given.

Directness

moderate

Tests a cognitive training game supplement to weight loss program; measures BMI directly.

Consistency

insufficient

Registry record contains no results; consistency cannot be assessed.

Risk of bias

insufficient

No methodological detail given on blinding, allocation concealment, or analysis plan.

Sample adequacy

limited

Small sample of 34 participants enrolled; pilot-scale study.

What is missing. This record has no key findings. That is a gap in the analysis, not a judgement about the study.

Source abstract

Registry record from ClinicalTrials.gov (NCT04747886). This is a study registration, not published results. Lead sponsor: Cedars-Sinai Medical Center. Recruitment status: COMPLETED. Phase: NA. Study type: INTERVENTIONAL. Enrollment: 34 participants (ACTUAL). Conditions: Overweight and Obesity. Interventions: BEHAVIORAL: WW Only; BEHAVIORAL: WW + PolyRules!. Primary outcome measures: BMI at Three Months , Baseline, 3 months. Brief summary: The purpose of this pilot study is to explore the benefits of supplementing the WW (formerly Weight Watchers) online program with a cognitive training game (PolyRules!) among adults with overweight or obesity.

Follow from this

Taken from the source record, never inferred. Follow any of these and new work involving them reaches your briefing.

WW + PolyRules!Cedars-Sinai Medical CenterOverweight and ObesityWW OnlyNCT04747886