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SMS Turkey: Harnessing the Power of Text Messaging to Promote Smoking Cessation (SMS Turkey)

This study has been completed.
Sponsor:
Collaborators:
Hacettepe University
John E. Fogarty International Center (FIC)
Information provided by (Responsible Party):
Center for Innovative Public Health Research
ClinicalTrials.gov Identifier:
NCT00912795
First received: May 19, 2009
Last updated: August 11, 2016
Last verified: August 2016
  Purpose
The purpose of this study is to develop and test a text messaging-based smoking cessation program for adults who are currently smoking and want to quit, living in Turkey.

Condition Intervention
Smoking
Behavioral: SMS Turkey

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Official Title: SMS Turkey: Harnessing the Power of TXT Messaging to Promote Smoking Cessation

Resource links provided by NLM:


Further study details as provided by Center for Innovative Public Health Research:

Primary Outcome Measures:
  • Carbon Monoxide-verified Continuous Abstinence at 12 Weeks [ Time Frame: 12-weeks post-quit day ] [ Designated as safety issue: No ]
    self-reported continuous abstinence since quit day (<=5 cigarettes) verified with carbon monoxide reading (<=8ppm)


Secondary Outcome Measures:
  • CO-verified 7-day Point Prevalence Abstinence at 4 Weeks [ Time Frame: 4 weeks ] [ Designated as safety issue: No ]
    self-reported continuous abstinence in the past 7 days at 4 weeks (<=5 cigarettes) verified with carbon monoxide reading (<=8ppm)

  • Self-reported 7-day Point Prevalence Abstinence at 12 Weeks [ Time Frame: 12 weeks ] [ Designated as safety issue: No ]
    self-reported smoking abstinence in the past 7 days at 12 weeks (<=5 cigarettes)

  • Self-reported 30-day Point Prevalence Abstinence at 12 Weeks [ Time Frame: 12 weeks ] [ Designated as safety issue: No ]
    self-reported smoking abstinence in the past 30 days at 12 weeks (<=5 cigarettes)


Enrollment: 151
Study Start Date: December 2010
Study Completion Date: September 2011
Primary Completion Date: September 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: SMS Turkey
6-week smoking cessation program delivered via daily text messages
Behavioral: SMS Turkey

6-week smoking cessation program delivered via daily text messages

SMS Turkey: 6-week smoking cessation program delivered via text messaging. SMS Turkey content is guided by the Cognitive Behavioral Therapy (CBT) theory.

Content was tailored based on participant's stage in quitting (i.e., pre-quit, quit day, early-quit, late-quit, relapse). Based on the typical relapse trajectory, content paths were created for participants based on whether or not they were smoking 2 days after quit day; and again at 7 days after quit day.

Depending on the participant's content path, the total number of messages received ranged from 91 (for those assigned to the encouragement arm) to 146 (for those who relapsed and then were assigned to the late quit messages).

Other Name: Cebiniz birakin diyor
No Intervention: Brochure control
7-page brochure that provided general information and tips on how to quit smoking

Detailed Description:

Smoking has long been recognized as a significant public health concern associated with great morbidity and mortality. Although smoking rates have decreased in high income countries, these trends have not been noted for tow and middle income countries. This is especially true in Turkey, which was ranked 6th in the world in smoking consumption. Between 51-63% of Turkish men and 24-26% of Turkish women 15 years of age and older are smokers. With lung cancer the leading cancer-related cause of death for both men and women, effective and accessible smoking cessation interventions are needed. Cell phone technology represents a unique opportunity to deliver evidenced-based smoking cessation behavioral treatments through a delivery mechanism already widely adopted by adults. An estimated 35 million Turks were using cell phones, making them 1.8 times more common than land lines. Cell phone interventions are a unique delivery method because of their 'always on' capability. The rapid uptake of cell phones allows us to potentially reach those who might otherwise not utilize smoking cessation services.

We designed and evaluated SMS Turkey, an evidenced-based smoking intervention that takes advantage of technologies adopted by adult smokers in Turkey. The primary outcome measure is sustained abstinence 12 weeks after quit day, confirmed with a carbon monoxide (CO) reading of 8 ppm or less. Sustained abstinence was defined as 5 or fewer cigarettes smoked since the quit date, per West et al. Secondary outcome measures included: 7-day and 30-day point prevalence of smoking behavior at 3 months; CO-verified 7-day point prevalence at 4 weeks; and reduction in cigarettes per day for those who are smoking at 3 months.

  Eligibility

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • 18 years of age or older
  • Currently smoking every day
  • Owning a TXT-capable cell phone
  • Sent or received TXT messages at least once in the past year
  • Living in Ankara (to ease technology support if necessary)
  • Agreement to set quit day in 15 days from enrollment date
  • Agreement to verification of smoking cessation using a carbon monoxide breath monitor

Exclusion Criteria:

• No chronic disease.

  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 ClinicalTrials.gov identifier: NCT00912795

Locations
Turkey
Hacettepe University
Ankara, Turkey
Sponsors and Collaborators
Center for Innovative Public Health Research
Hacettepe University
John E. Fogarty International Center (FIC)
Investigators
Principal Investigator: Michele Ybarra, MPH PhD Center for Innovative Public Health Research
  More Information

Additional Information:
Publications:
Responsible Party: Center for Innovative Public Health Research
ClinicalTrials.gov Identifier: NCT00912795     History of Changes
Other Study ID Numbers: ISK-NIH-FIC7918  5R01TW007918 
Study First Received: May 19, 2009
Results First Received: March 29, 2016
Last Updated: August 11, 2016
Health Authority: United States: Institutional Review Board
Turkey: Ethics Committee
Individual Participant Data  
Plan to Share IPD: No

Keywords provided by Center for Innovative Public Health Research:
Smoking Cessation
technology
developing countries

ClinicalTrials.gov processed this record on December 02, 2016