QuitBet Phase II: A Digital Social Game That Pays You to Stop Smoking

Overview

This study is a randomized controlled trial (RCT) of QuitBet, a digital contingency management program for smoking cessation. QuitBet combines social gaming elements with participant-funded financial incentives in the form of a deposit contract. QuitBet "players" deposit (called the "bet") a specified amount of their own money into the game's "pot." All "winners" who achieve the game's goal split the pot equally, such that their bet is fully refunded plus they receive extra money from the forfeited bets of players who did not meet the goal. Participants (N = 550) will be randomly assigned to QuitBet or QuitBet-NS (deposit contract only, no social elements). All participants will be offered a second game after their first game (up to 8 weeks total game duration) and will be asked to complete a survey after each game and at 1 and 4 months after the end of the second game. The study will compare QuitBet vs. QuitBet-NS on smoking behavior outcomes and examine potential mediators of outcomes such as motivation, engagement, and satisfaction.

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: Randomized
    • Intervention Model: Parallel Assignment
    • Primary Purpose: Treatment
    • Masking: None (Open Label)
  • Study Primary Completion Date: January 1, 2023

Interventions

  • Behavioral: contingency management (deposit contract)
    • Participants will deposit $30 of their own money to play QuitBet. They will submit a CO test once per day between the hours of noon and midnight. Participants whose CO test is 6ppm or lower (indicating no smoking) on at least 25 of 26 days between day 3-28 of the game will be declared winners and split the pot of deposited money. Participants who submit at least 21 CO tests, regardless of the result, will be entered into a raffle to win a prize worth $75.
  • Behavioral: leaderboard and social feed
    • Participants will have access to a discussion board on which they can post and respond to messages to each other. Also, a game host will post educational information about smoking cessation and serve as a discussion moderator.
  • Behavioral: smoking cessation resource list
    • Participants will have access to a list of smoking cessation resources

Arms, Groups and Cohorts

  • Experimental: QuitBet
    • QuitBet is quit smoking game delivered via a smartphone application that lasts 28 days that includes contingency management in the form of a deposit contract, integrated exhaled breath carbon monoxide (CO) testing, a leaderboard to view CO test results for all participants, and a social feed (discussion board) in which participants can post and respond to messages. A game host will post educational information about smoking cessation and serve as a discussion moderator. Participants will deposit (“bet”) $30 of their own money at the start of the game. Participants who submit a CO test that is 6ppm or lower (indicating no smoking) on at least 25 of the 26 days between day 3-28 will be declared winners and will split the pot of money that was deposited. All participants who submit at least 21 CO tests during the 28 day game, regardless of the CO test result, will be entered into a lottery to win a prize worth $75.
  • Active Comparator: QuitBet-NS (no social elements)
    • QuitBet-NS will include the deposit contract and integrated CO testing with identical rules to QuitBet for being a winner, the $75 raffle for submitting at least 21 CO tests, a display of the participant’s daily CO test results that is updated in real time, and a game feed on which only the game host has the ability to post. Players will not be able to post on this feed or respond to the host’s posts. At the beginning of the game, the host will post limited information, including the number of players in the game and a list of smoking cessation resources that includes some of the content that QuitBet hosts will post. QuitBet-NS will NOT include the leaderboard, social feed, or any other social features.

Clinical Trial Outcome Measures

Primary Measures

  • 7-day point prevalence abstinence from combustible tobacco use-6 months
    • Time Frame: 6 months post-quit date
  • 7-day point post-prevalence abstinence- end of first game
    • Time Frame: 27 days post quit date
  • 7 day point prevalence abstinence- end of second game
    • Time Frame: 62 days post quit date
  • 7 day point prevalence abstinence- 3 months
    • Time Frame: 3 months post quit date

Secondary Measures

  • proportion of participants who choose to play a second game
    • Time Frame: 35 days post start of first game
  • smoking heaviness
    • Time Frame: 27 days post-quit date
    • average cigarettes smoked during the past 7 days
  • smoking heaviness
    • Time Frame: 62 days post-quit date
    • average cigarettes smoked during the past 7 days
  • smoking heaviness
    • Time Frame: 3 months post quit date
    • average cigarettes smoked during the past 7 days
  • smoking heaviness
    • Time Frame: 6 months post quit date
    • average cigarettes smoked during the past 7 days
  • proportion of participants who use of smoking cessation medication
    • Time Frame: 28 days post quit date
    • Checklist of smoking cessation medicines and treatments
  • proportion of participants who use of smoking cessation medication
    • Time Frame: 62 days post quit date
    • Checklist of smoking cessation medicines and treatments
  • proportion of participants who use of smoking cessation medication
    • Time Frame: 3 months post quit date
    • Checklist of smoking cessation medicines and treatments
  • proportion of participants who use of smoking cessation medication
    • Time Frame: 6 months post quit date
    • Checklist of smoking cessation medicines and treatments

Participating in This Clinical Trial

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

Gender Eligibility: All

Minimum Age: 21 Years

Maximum Age: N/A

Are Healthy Volunteers Accepted: No

Investigator Details

  • Lead Sponsor
    • WayBetter, Inc.
  • Collaborator
    • Hennepin Healthcare Research Institute
  • Provider of Information About this Clinical Study
    • Sponsor
  • Overall Official(s)
    • Jamie Rosen, Principal Investigator, WayBetter, Inc.
  • Overall Contact(s)
    • Sandra Japuntich, PhD, 615-784-8238, sandra.japuntich@hcmed.org

Clinical trials entries are delivered from the US National Institutes of Health and are not reviewed separately by this site. Please see the identifier information above for retrieving further details from the government database.

At TrialBulletin.com, we keep tabs on over 200,000 clinical trials in the US and abroad, using medical data supplied directly by the US National Institutes of Health. Please see the About and Contact page for details.