Telephone-based Treatment for Smoking Cessation

This study has been completed.
Sponsor:
Collaborator:
Stockholm County Council, Sweden
Information provided by:
Karolinska Institutet
ClinicalTrials.gov Identifier:
NCT01121887
First received: May 10, 2010
Last updated: May 11, 2010
Last verified: September 2008
  Purpose

Aim: to assess the effect of adding Motivational Interviewing (MI) to the existing smoking cessation treatment protocol at the Swedish National Tobacco Quitline (SNTQ).

Methods: Experienced counsellors at SNTQ either received further training in the standard treatment (ST) protocol (including Cognitive Behavioural Therapy (CBT)) or a comprehensive regime of training in MI. 1309 clients were randomized to either the ST group or the group with MI added to the treatment protocol. In order to ensure treatment integrity among counsellors, MI skill was assessed using the Motivational Interviewing Treatment Integrity Code (MITI).


Condition Intervention Phase
Smoking Cessation
Behavioral: Standard treatment
Behavioral: Motivational Interviewing
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Single Blind (Subject)
Primary Purpose: Treatment
Official Title: Motivational Interviewing in Smoking Cessation: A Controlled Clinical Trial at the Swedish National Tobacco Quitline

Resource links provided by NLM:


Further study details as provided by Karolinska Institutet:

Primary Outcome Measures:
  • Point prevalence abstinence [ Time Frame: 12 months after initial contact with SNTQ ] [ Designated as safety issue: No ]
    Not one puff of smoke during the previous 7 days


Secondary Outcome Measures:
  • Continuous abstinence [ Time Frame: 12 months after initial contact with SNTQ ] [ Designated as safety issue: No ]
    Not a single puff of smoke within the past six months or more


Enrollment: 1309
Study Start Date: January 2005
Study Completion Date: October 2007
Primary Completion Date: October 2007 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Standard treatment Behavioral: Standard treatment

Telephone-based smoking cessation counselling based on a combination of coaching and cognitive behavioural therapy (CBT) techniques. Counsellors are also trained in giving tailored advice regarding the use of smoking cessation aids.

Clients are offered a choice between "reactive treatment" (clients initiate all contact) and "proactive treatment" (counsellors call back at appointed dates). Printed information material tailored to clients' needs is offered free of charge.

Experimental: Motivational Interviewing Behavioral: Motivational Interviewing

Telephone-based smoking cessation counselling with Motivational Interviewing added to the standard treatment protocol.

Clients are offered a choice between "reactive treatment" (clients initiate all contact) and "proactive treatment" (counsellors call back at appointed dates). Printed information material tailored to clients' needs is offered free of charge.


  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Clients have to express a desire for support regarding smoking cessation
  • Clients have to be willing to confirm their identity by answering a baseline registration questionnaire

Exclusion Criteria:

  • Clients with obvious difficulties understanding Swedish
  • Clients with obvious mental impairments
  • Clients using tobacco products other than cigarettes (mainly smokeless tobacco, or "snus")
  Contacts and Locations
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Please refer to this study by its ClinicalTrials.gov identifier: NCT01121887

Locations
Sweden
Asgeir R. Helgason
Stockholm, Sweden, 10462
Sponsors and Collaborators
Karolinska Institutet
Stockholm County Council, Sweden
Investigators
Principal Investigator: Asgeir R Helgason, PhD Karolinska Institutet
Study Director: Lars Forsberg, PhD Karolinska Institutet
  More Information

Additional Information:
Publications:
Responsible Party: Asgeir R. Helgason & Lars Forsberg, Karolinska Institutet
ClinicalTrials.gov Identifier: NCT01121887     History of Changes
Other Study ID Numbers: CAN046684 / LS04010116, CAF2006-ASG
Study First Received: May 10, 2010
Last Updated: May 11, 2010
Health Authority: Sweden: Institutional Review Board

Keywords provided by Karolinska Institutet:
smoking cessation
telephone counselling
motivational interviewing
treatment integrity
Tobacco Smoking

Additional relevant MeSH terms:
Smoking
Habits

ClinicalTrials.gov processed this record on July 22, 2014