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Completed

NCT Number: NCT01983150

A Randomized Controlled Trial to Test the Effect of a Smartphone Quit Smoking Intervention on Young Adult Smokers

The primary aim of this study will be to determine the effectiveness of a smartphone delivered app for young adult smokers on quitting smoking.

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Key information

Conditions

Cigarette Smoking Behavior Health Behavior Smoking Smoking Cessation Tobacco Smoking Tobacco Use

Age range

19 year–29 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Waterloo

Waterloo, Ontario, N2L3G1, Canada

About this study

The principle study purpose of the randomized controlled trial is to determine the effectiveness of a smartphone delivered app for young adult smokers on smoking cessation at six months using a randomized controlled trial. Secondary aims of this study include examining: 1) proximal outcome measures of cessation behaviour; 2) satisfaction, extent of app use and use of NRT and other cessation services; 3) mediators of cessation outcomes between conditions; and 4) the incremental cost-effectiveness.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age 19 to 29 years
  • Currently smoking cigarettes daily or occasionally
  • Residing in Canada
  • Considering quitting smoking in the next 30 days
  • Have an Android or iPhone OS smartphone
  • Able to provide informed consent
  • English comprehension
  • Not referred by a study participant

Exclusion criteria

  • opposite of the above

Treatment and study plan

Crush the Crave Application

Behavioral

Crush the Crave (CTC) allows users to customize a quit plan by choosing a quit date and then deciding whether to quit now or cut down the number of cigarettes they smoke every week up to the quit date. CTC reminds users of money saved and health improvements. Based on contingency reinforcement, rewards are provided, which smokers can then choose to share with their social network via Facebook. Supportive text messages tailored to their specific quit plan and where they are in the quitting experience are provided. CTC allows tracking of daily smoking habits and cravings as well as craving triggers or psychosocial determinants by recording when, where and why smoking occurred. Online distractions to help smokers deal with cravings are provided.

Other names: Android, iPhone, Mobile phone, Behavior change, Quit smoking, Social media, Facebook

On the Road to Quitting - Self Help

Behavioral

The control group will receive an evidence-based self-help guide known as "On the Road to Quitting" that has been developed by Health Canada for young adult smokers. Participants will be able to both view the self-help guide via the internet and will receive a printed version of the guide.

Primary outcomes

  1. 30 day point prevalence of abstinence

    Time frame: 6 months

    30 day point prevalence of abstinence at 6 months,operationalized as not having smoked any cigarettes, even a puff, or used other tobacco in the last 30 days.

Secondary outcomes

  1. 7-day abstinence

    Time frame: 6 months

    7 day point prevalence of abstinence at 6 months,operationalized as not having smoked any cigarettes, even a puff, or used other tobacco in the last 30 days

  2. Number of quit attempts

    Time frame: 6 months

    How many times did you stop using tobacco for 24 hours or longer over the past six months?

  3. Consumption of cigarettes

    Time frame: Baseline and at 6 months

    Reduction in the consumption of cigarettes since baseline and behavioural intentions to quit smoking using questions from the Minimal Dataset and nicotine withdrawal using the Fagerstrom test for nicotine dependence.

  4. Satisfaction and App Utilization

    Time frame: 6 months

    Satisfaction with program, app utilization metrics, and use of smoking cessation services (NRT, health professional consults,medications and quitline counseling)

  5. Psychosocial measures

    Time frame: Baseline and at 6 months

    Beliefs, attitudes and social norms using the Smoking Attitudes Scale, stress using the 14-item Perceived Stress Scale, self-efficacy using Etter's 12 items, and perceived social support using the modified 7-item subjective support subscale of the Duke Social Support Index.

Sponsors and collaborators

Lead sponsor

University of Waterloo

Other

Registry information

Official study title

Effect of a Smartphone Intervention on Quitting Smoking in a Young Adult Population of Smokers: A Randomized Controlled Trial

Important dates

Study start
2014
Primary completion
2015
Study completion
2015
First posted
Nov 13, 2013
Registry last updated
Dec 2, 2015

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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