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Can cash incentives on your phone help you quit smoking?

NCT ID NCT04881630

Disease control Sponsor: University of Oklahoma 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jul 24, 2026 · Updated 2 times

Summary

This study tests whether offering financial incentives through a mobile phone app can help low-income adults quit smoking. 532 participants will receive either standard care (phone counseling and nicotine patches/gum) or standard care plus mobile rewards for verified abstinence. Smoking status is checked using a portable carbon monoxide monitor and facial recognition. The goal is to see if the incentive program improves quit rates at 26 weeks.

What this could mean

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

Active substance
financial incentives (contingency management) plus nicotine replacement therapy and telephone counseling
What this could lead to
If successful, this could provide an effective, scalable way to help low-income adults quit smoking using mobile technology and financial rewards.
What could go wrong
This is a behavioral intervention, not a drug; results may vary by individual. The trial is not yet complete, and long-term abstinence rates may be modest.

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

532 people

The number who actually took part.

Started

Nov 2022

Finished

Sep 2025

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: 1. report an annual household income of \<200% of the federal poverty threshold (i.e., low-income) 2. earn a score ≥4 on the REALM indicating \>6th grade English literacy level (i.e., a 7th grade reading level is necessary to complete assessments) 3. are willing to quit smoking 7-14 days after enrollment 4. are ≥ 18 years of age 5. currently smoke ≥ 5 cigarettes per day 6. have a CO level of \>6 ppm 7. are willing to abstain from smoking cannabis and other combustible tobacco products (they raise CO levels and mask cigarette abstinence) 8. have no contraindications for NRT 9. Provide a copy/photo of driver's license or other documentation as proof of identity and U.S. residence Exclusion Criteria 1\) do not meet the specified inclusion criteria

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Conditions

The condition(s) this trial relates to.

nicotine dependence Smoking Cessation

As listed by the trial registrant

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

Smoking cessation

Contacts and locations

Locations

  • TSET Health Promotion Research Center

    Oklahoma City, Oklahoma, 73104, United States

More trials for these conditions

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