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San Francisco Stop Smoking App - Pilot Study (TCapp-1)

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified May 2015 by University of California, San Francisco.
Recruitment status was:  Recruiting
Information provided by (Responsible Party):
University of California, San Francisco Identifier:
First received: June 20, 2012
Last updated: May 21, 2015
Last verified: May 2015

This is an initial pilot study to determine whether people will use a research version of an iPhone Stop Smoking app. The investigators primary measures will consist of rates of recruitment (that is, number of people installing the app), use of the app, and completion of follow-up surveys regarding self-reported smoking status. The investigators secondary measure will be obtained quit rates and number of cigarettes smoked before and after using the app.

To enter the study, participants must download the app from iTunes at:

Condition Intervention Phase
Behavioral: San Francisco Stop Smoking iPhone app
Phase 1

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Evaluation of a Stop Smoking iPhone App

Resource links provided by NLM:

Further study details as provided by University of California, San Francisco:

Primary Outcome Measures:
  • Recruitment rates [ Time Frame: Three years ]
    Rates of recruitment into study (defined as number of users who provide consent by installing the app)

Secondary Outcome Measures:
  • Utilization [ Time Frame: One year ]
    Proportion of consented users who enter data into the app

  • Follow-up completion rates [ Time Frame: One year ]
    Proportion of consented users who provide smoking data at follow-ups

  • Quit rates [ Time Frame: 1, 3, and 6 months ]
    Self-reported quit rates at 1, 3, and 6 months

Estimated Enrollment: 12000
Study Start Date: June 2012
Estimated Study Completion Date: June 2015
Estimated Primary Completion Date: June 2015 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
Stop smoking app
Stop smoking iPhone research app provided at no charge via the iTunes store
Behavioral: San Francisco Stop Smoking iPhone app
iPhone app designed to help people quit smoking

Detailed Description:

The investigators research team has developed smoking cessation self-help tools administered as printed brochures and Internet stop smoking sites. These self-help tools have demonstrated quit rates similar to those obtained with the nicotine patch. The investigators now want to see if mobile device apps might also help people quit.

This is the investigators first pilot study with a research version of the investigators stop smoking app for the iPhone. The investigators want to get estimates of how many people will download the app per month, how many will actually use the app, and how many will provide follow-up information on whether they quit, and if not, how many cigarettes they are smoking now. The investigators will use this information to plan a randomized controlled trial to determine efficacy of the app for stopping smoking.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Adults who use iPhone stop smoking apps

Inclusion Criteria:

  • 18 years of age or older
  • Must download the iPhone app from iTunes at:

Exclusion Criteria:

  • less than 18 years of age
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01626326

Contact: Ricardo F. Muñoz, Ph.D. 650-433-3861
Contact: Jessica Lee, B.A. 650-433-3868

United States, California
UCSF Psychiatry at San Francisco General Hospital Recruiting
San Francisco, California, United States, 94110
Contact: Ricardo F Muñoz, Ph.D.    650-433-3861   
Contact: Jessica Lee, B.A.    650-433-3868   
Principal Investigator: Ricardo F Munoz, Ph.D.         
Sponsors and Collaborators
University of California, San Francisco
Principal Investigator: Ricardo F Muñoz, Ph.D. University of California, San Francisco
  More Information

Additional Information:
Responsible Party: University of California, San Francisco Identifier: NCT01626326     History of Changes
Other Study ID Numbers: TCapp-1
Study First Received: June 20, 2012
Last Updated: May 21, 2015

Keywords provided by University of California, San Francisco:
smoking cessation
mobile app processed this record on May 25, 2017