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Natural History of Attempts to Stop Smoking

This study has been completed.
National Institute on Drug Abuse (NIDA)
Information provided by (Responsible Party):
John Hughes, University of Vermont Identifier:
First received: October 14, 2009
Last updated: October 27, 2016
Last verified: October 2016
Smoking cessation can be enhanced either by increasing the success of quit attempts or by increasing in the number of quit attempts. The investigators are interested in what causes a smoker to make a quit attempt. The investigators will test whether certain events (e.g., a request from a child to quit smoking or exposure to a smoking-related health message) increase the probability of a quit attempt in the near future. The investigators are will test whether planning behaviors (e.g. seeking information about treatment) and setting a quit date are common and increase the probability of a quit attempt. Finally, the investigators want to see if spontaneous, unplanned quit attempts are common and are more or less successful than delayed, planned quit attempts. In a pilot study, the investigators will develop measures of the most common events and planning activities. In the main study, the investigators will recruit 200 adult daily smokers who are interested in quitting in the next 3 months. They will call a phone daily and use the phone's keypad to enter data plus they will complete mailed or internet questionnaires weekly for 3 months. The results of this study will a) help us understand what prompts smoking cessation attempts, b) help develop media messages and individual interventions to motivate smokers to make a quit attempt, and c) help determine whether spontaneous, impulsive quit attempts or delayed, planned quit attempts should be encouraged.

Tobacco Use Cessation

Study Type: Observational
Study Design: Observational Model: Ecologic or Community
Time Perspective: Prospective
Official Title: Natural History of Attempts to Stop Smoking

Resource links provided by NLM:

Further study details as provided by John Hughes, University of Vermont:

Primary Outcome Measures:
  • prediction of quit attempts [ Time Frame: 3 mo ]

Secondary Outcome Measures:
  • success of quit attempts [ Time Frame: 3 mo ]

Enrollment: 238
Study Start Date: February 2009
Study Completion Date: February 2012
Primary Completion Date: February 2012 (Final data collection date for primary outcome measure)
  Show Detailed Description


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
Community sample

Inclusion Criteria:

  • > 18 yrs of age
  • smoke cigarettes daily for at least 1 year
  • is able to read and write English
  • as a final test of eligibility the investigators will determine if the person is compliant enough to participate in this study. The investigators will use 2 criteria:

    • they must complete 5 of 7 IVR sessions in the first week
    • they must complete the baseline questionnaires within one week of beginning the IVR sessions.

Exclusion Criteria:

  • pregnancy
  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: NCT00995644

United States, Vermont
University of Vermont
Burlington, Vermont, United States, 05401
Sponsors and Collaborators
University of Vermont
National Institute on Drug Abuse (NIDA)
Principal Investigator: John R Hughes, MD University of Vermont
  More Information

Responsible Party: John Hughes, Professor of Psychiatry, University of Vermont Identifier: NCT00995644     History of Changes
Other Study ID Numbers: CHRBS #08-199
R01DA025089 ( U.S. NIH Grant/Contract )
Study First Received: October 14, 2009
Last Updated: October 27, 2016
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

Keywords provided by John Hughes, University of Vermont:
smoking cessation
tobacco use cessation
tobacco use disorder processed this record on September 25, 2017