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Bet $30 to quit smoking? this game could help you win money and beat the habit

NCT ID NCT05075213

Disease control Sponsor: WayBetter, Inc. 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

QuitBet is a digital social game that helps people stop smoking by letting them bet $30 of their own money. Players submit daily breath tests to prove they haven't smoked. Those who succeed split the pot of money from those who fail. This study tested QuitBet in 245 adults who smoke at least 5 cigarettes a day, comparing it to a version without social features. The goal was to see if the game helps people stay smoke-free for 6 months.

What this could mean

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

Active substance
contingency management (deposit contract) and social gaming elements
What this could lead to
If it works, this could offer a fun, low-cost way to help people quit smoking using financial incentives and social support.
What could go wrong
This is a small, completed study with 245 participants. The results may not apply to everyone, and the program requires upfront money and daily testing.

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

245 people

The number who actually took part.

Started

Nov 2021

Finished

Jul 2024

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

21 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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. Sufficient English fluency to complete study procedures 2. At least 21 years of age 3. U.S. resident of any state 4. currently smokes at least 5 cigarettes per day 5. has an email address 6. has a mailing address at which they can receive packages 7. owns an Internet-connected Apple iPhone or Android smartphone that is compatible with QuitBet 8. willing to deposit $30 via PayPal or a credit card 9. willing to receive financial incentives earned during QuitBet via PayPal or in a paper check sent by mail

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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

  • WayBetter

    Wilmington, Delaware, 19807, United States

More trials for these conditions

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