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Evaluating the GEMS mHealth App for Quitting Smoking

This study is testing two versions of a mobile health (mHealth) app called GEMS to see which one better helps people who are thinking about quitting smoking. Both apps offer standard advice and support for quitting. One version, the experimental intervention, also includes extra content to help users understand their reasons for quitting and build motivation. You might be able to join if you are 18 or older, smoke at least half a pack a day, use a smartphone regularly, and are considering quitting but aren't actively using other treatments. The researchers want to see if the experimental app leads to more people asking for additional help to quit and successfully stopping smoking after six months. The current status of this study is unclear.

Study design
This interventional study plans to enroll 800 participants. It compares two versions of the GEMS mHealth app.
What's involved
You would need to install and use the assigned app and be willing to receive study communications. The study measures outcomes at 6 months.
Compensation
Not stated in the trial record.
Follow-up
Participants will be followed for 6 months after joining the study to check on their smoking habits and requests for treatment.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT07459621

Evaluation of a Novel mHealth Intervention for People Who Are Ambivalent About Quitting Smoking

Recruiting
NAAges 18+InterventionalTreatment
Kaiser Permanente
~800 participants
Updated 2026-07-10 on ClinicalTrials.gov
What's tested:Control InterventionExperimental Intervention

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Evidence-based treatment request
Measured over 6-months post-randomization
+1 more outcome measured

Conditions

Smoking Behaviors

Explore related trials

Smoking

Where it's being run

1 sites across 1 states
Oregon1

Who to contact

Jennifer B McClure, PhD
[email protected]
503-335-2400
Email the study team

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Do you actually qualify for this trial?

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Eligibility criteria

Inclusion

18 years of age and older
Current cigarette smoker who is ambivalent about smoking
Not actively using any treatment to quit smoking
Own and regularly use a smartphone
State willingness to install and use their assigned app
Willingness to receive study communications
Smoke at least half a pack a day
Meet geolocation requirements

Exclusion

A lifetime history of dementia or psychosis
Visual impairments that prevent viewing phone content and they lack adaptive devices
Report medical contra-indications for over-the-counter NRT use
Due to the potential for bias introduced by fraudulent participants, other exclusions will be applied to deter fraudulent enrollment.

What this trial measures

  • Evidence-based treatment request6-months post-randomization

    Composite indicator of (1) Earning the ability to request free nicotine replacement therapy (NRT) through sufficient app participation and requesting NRT and/or (2) accessing free quitline services through the app.

  • 7-day Point Prevalence Abstinence (PPA) [Self-report]6-months post-randomization

    Self-report of no smoking, even a puff, in the past 7 days.