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Smartphone prompts timed to mood may boost quitting efforts

NCT ID NCT04376489

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

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 29, 2026 · Last updated Sep 01, 2026 · Updated 3 times

Summary

This trial tests whether sending tailored smartphone messages at moments of high vulnerability (negative mood and cigarette availability) can help smokers engage with quitting strategies. About 114 current smokers motivated to quit will receive up to six prompts per day for ten days, comparing no prompt, low-effort tips, or more effortful strategies. The goal is to see if timing messages to a person's state makes them more likely to use the advice.

What this could mean

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

Active substance
smartphone-delivered behavioral prompts tailored to mood and cigarette availability
What this could lead to
If it works, this approach could make quitting aids more effective by delivering the right support at the right moment.
What could go wrong
This is a small, early-stage study focused on engagement, not quitting success. The prompts may not help everyone, and results may not apply to all smokers.

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

114 people

The number who actually took part.

Started

Aug 2020

Finished

Oct 2023

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 * Current smoker with an average of at least 3 cigarettes/day * Motivated to quit within the next 30 days * Valid home address in Utah, Nevada, and Arizona * Functioning telephone number and access to reliable wifi * Can speak, read, and write in English * At least marginal health literacy (as determined by 45 or greater on REALM literacy test) Exclusion Criteria: * Contraindication for nicotine patch or gum * Current use of tobacco cessation medications or other aids (i.e. buproprion) * Pregnancy or lactation (as self-reported)

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Conditions

The condition(s) this trial relates to.

Tobacco Smoking

As listed by the trial registrant

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

Current smoker Tobacco smoking

Contacts and locations

Locations

  • University of Utah

    Salt Lake City, Utah, 84102, United States

More trials for these conditions

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