Telephone-based Treatment for Smoking Cessation

May 11, 2010 updated by: Karolinska Institutet

Motivational Interviewing in Smoking Cessation: A Controlled Clinical Trial at the Swedish National Tobacco Quitline

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).

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

1309

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Sweden
      • Stockholm, Sweden, 10462
        • Asgeir R. Helgason

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

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")

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
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.
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.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Point prevalence abstinence
Time Frame: 12 months after initial contact with SNTQ
Not one puff of smoke during the previous 7 days
12 months after initial contact with SNTQ

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Continuous abstinence
Time Frame: 12 months after initial contact with SNTQ
Not a single puff of smoke within the past six months or more
12 months after initial contact with SNTQ

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Karolinska Institutet

Collaborators

Region Stockholm

Investigators

  • Study Director: Lars Forsberg, PhD, Karolinska Institutet
  • Principal Investigator: Asgeir R Helgason, PhD, Karolinska Institutet

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2005

Primary Completion (Actual)

October 1, 2007

Study Completion (Actual)

October 1, 2007

Study Registration Dates

First Submitted

May 10, 2010

First Submitted That Met QC Criteria

May 11, 2010

First Posted (Estimate)

May 12, 2010

Study Record Updates

Last Update Posted (Estimate)

May 12, 2010

Last Update Submitted That Met QC Criteria

May 11, 2010

Last Verified

September 1, 2008

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • CAN046684 / LS04010116
  • CAF2006-ASG (Other Grant/Funding Number: Cancerfonden)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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