Trial record 1 of 2 for:    "Carpenter syndrome" OR "acrocephalopolysyndactyly type II" OR "Acrocephalosyndactylia"
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Promoting Smoking Cessation in Carpenters

This study has been completed.
Information provided by (Responsible Party):
Washington University School of Medicine Identifier:
First received: May 22, 2013
Last updated: March 11, 2014
Last verified: March 2014

The purpose of this study is to test an innovative and sustainable intervention to increase participation in a union-sponsored smoking cessation program among carpenters and floor layers. The investigators will conduct a randomized controlled trial comparing targeted messaging versus standard messaging. All subjects will receive information about the free, union-sponsored smoking cessation program. Subjects randomized to the intervention group will receive additional targeted materials to encourage enrollment in the union's smoking cessation program. The intervention will include monthly mailed and text messages. The investigators hypothesize that subjects who receive targeted messages will be more likely to enroll in the union-sponsored smoking cessation program, be more likely to show change in readiness to quit smoking, and be more likely to quit smoking compared to subjects who receive only standard messaging.

Condition Intervention
Smoking Cessation
Health Behavior
Behavioral: Targeted messaging
Behavioral: Standard messaging

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Single Blind (Subject)
Primary Purpose: Prevention
Official Title: Effective Communication Strategies for Promoting Smoking Cessation in Carpenters

Resource links provided by NLM:

Further study details as provided by Washington University School of Medicine:

Primary Outcome Measures:
  • Enrollment in smoking cessation program [ Time Frame: up to 12 months after recruitment ] [ Designated as safety issue: No ]
    Enrollment records from the union-sponsored smoking cessation program

Secondary Outcome Measures:
  • Changes in readiness to quit smoking [ Time Frame: 7 months after recruitment ] [ Designated as safety issue: No ]

    Subjects will answer several questions about readiness to quit (see below). We will compare answers between baseline and 7-month follow-up.

    1. How motivated are you to quit smoking at this time? (1-10 scale)
    2. Each rung on this ladder represents where various smokers are in their thinking about quitting. Circle the number that indicates where you are now. (0-10 scale)
    3. Are you seriously considering quitting smoking in the next 6 months? (yes/no)

  • Changes in smoking behavior [ Time Frame: 7 months after recruitment ] [ Designated as safety issue: No ]
    Changes in quantity and/or frequency of smoking

Enrollment: 442
Study Start Date: April 2012
Study Completion Date: March 2014
Primary Completion Date: March 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Intervention group
Targeted messaging
Behavioral: Targeted messaging
1 informational letter plus 6 targeted mailed messages and 6 booster text messages
Behavioral: Standard messaging
1 informational letter
Active Comparator: Control group
Standard messaging
Behavioral: Standard messaging
1 informational letter

Detailed Description:

Specific Aim 1: Develop targeted health messages based on audience segmentation to encourage smokers to enroll in a comprehensive union-sponsored smoking cessation program.

We will craft six specific health messages that appeal to four different audience segments: workers under 30 years old without children, workers under 30 with children, workers 30 years old or older without children, and workers 30 or older with children.

Specific Aim 2: Conduct a randomized controlled trial of targeted messaging based on audience segmentation versus standard smoking cessation messaging.

After conducting baseline surveys with union carpenters and floor layers, we will randomize current smokers (smoked within the last 30 days) into either the intervention or control group.

  • Control subjects will receive one standard mailing informing them about the free smoking cessation program available to union members.
  • Intervention subjects will receive the standard mailing in addition to six targeted smoking cessation messages delivered monthly by mail to their homes. Messages will be specific to one of four audience segments determined by age and parental status. In addition to a segment-specific anti-smoking message, each mailing will have contact information for the union smoking cessation program. Intervention subjects who consented to text messaging will also receive one booster text message each month with a shortened targeted message.

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Current smoker (smoked cigarettes within the last 30 days)
  • Eligible for union health benefits

Exclusion Criteria:

  • None
  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: NCT01878214

United States, Missouri
Washington University School of Medicine
St. Louis, Missouri, United States, 63110
Sponsors and Collaborators
Washington University School of Medicine
Principal Investigator: Bradley Evanoff, MD, MPH Washington University Early Recognition Center
  More Information


Responsible Party: Washington University School of Medicine Identifier: NCT01878214     History of Changes
Other Study ID Numbers: 201110075, R21CA161169
Study First Received: May 22, 2013
Last Updated: March 11, 2014
Health Authority: United States: Institutional Review Board
United States: Federal Government

Keywords provided by Washington University School of Medicine:
Health communication
Smoking cessation
Health behavior
Construction industry
Audience segmentation processed this record on October 30, 2014