NCT00679861

Brief Summary

Primary care physicians can play an important role in reducing tobacco smoking in the population. The general practice is a suitable setting for implementing proactive smoking interventions, because a large proportion of the population can be regularly reached in a favorable psychological state. Further, a trustful interpersonal relationship between the practitioners and their patients is supposed to increase the susceptibility to preventive measures. However, currently general practitioners are not capitalizing this advantage although evidence based treatments are available, which are effective and cost-effective. Outreach programs combining educational and practice-based measures have been found to be effective in engaging practitioners in screening and in giving advice. Computer expert-system and brief counseling interventions, which are based on the Transtheo-retical Model of behavior change (TTM), are promising approaches for the entire population of practitioners and smoking patients. For large scale implementation, data are needed about the degree of integration in every day routine clinical practice that could be achieved by implementing such interventions. Objectives: Evaluating different strategies for the implementation of proactive smoking interventions in general practices. Methods: In a randomized controlled trial, 150 randomly selected general practices of a defined German region will be included. The procedure comprises the implementation of 1) an on-site computer expert-system intervention, 2) a counseling intervention provided by the practitioner, or 3) the computer expert-system plus the counseling intervention. During an implementation phase of one month, two on site training sessions and support by phone will be provided. Routine use of the interventions will be monitored for the following 6 months. Main outcome measures are the number and rate of identified and treated smokers. A follow-up assessment will be realized 12 months after practice attendance to determine the smoking status of the treated smokers.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
3,215

participants targeted

Target at P75+ for phase_2

Timeline
Completed

Started Oct 2004

Longer than P75 for phase_2

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2004

Completed
3.6 years until next milestone

First Submitted

Initial submission to the registry

May 15, 2008

Completed
4 days until next milestone

First Posted

Study publicly available on registry

May 19, 2008

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2008

Completed
10 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2009

Completed
Last Updated

May 19, 2008

Status Verified

May 1, 2008

Enrollment Period

3.8 years

First QC Date

May 15, 2008

Last Update Submit

May 16, 2008

Conditions

Keywords

primary medical carecomputer expert systemmotivational interviewinghealth behavior change counsellingstages of change

Outcome Measures

Primary Outcomes (2)

  • Number of treated Patients by practice within study period

    7 months

  • Point prevalence smoking abstinence of treated patients

    24 hours, 7 days, 4 weeks, 6 months preceeding the 12 months follow-up assessment

Secondary Outcomes (4)

  • Participation rate of practices

    within recruitment phase

  • Quit and cut down attempts of patients

    12 months

  • number of cigarettes smoked per day

    4 weeks preceeding follow-up

  • Stages of change progress

    at 12 month follow-up compared to baseline

Study Arms (3)

3

EXPERIMENTAL

A practitioner delivered counselling and an expert system intervention is implemented in practices allocated to this arm

Behavioral: Counselling InterventionBehavioral: Expert-system intervention

1

EXPERIMENTAL

A practitioner delivered counselling intervention was implemented in practices allocated to this arm

Behavioral: Counselling Intervention

2

EXPERIMENTAL

A computer expert system intervention was implemented in practices allocated to this arm

Behavioral: Expert-system intervention

Interventions

A personal counselling by the residing practitioner of up to 10 minutes. A follow-up counselling is included for the next regular patient consultation

13

Counselling letter of three to four pages will be generated by an expert-system base on the assessment of the patient. A second and third letter will be generated at follow-up consultations.

23

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Practices with regular office hours
  • Practices predominantly providing primary medical care for adults
  • Patients with age 18 and older
  • Patients with sufficient German language and cognitive capabilities to complete assessment
  • Patients smoking within the preceding six month

You may not qualify if:

  • Practices planing closure within the next 12 months
  • Practices opening less than 12 months ago

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Tobacco SmokingTobacco Use Disorder

Condition Hierarchy (Ancestors)

SmokingBehaviorTobacco UseSubstance-Related DisordersChemically-Induced DisordersMental Disorders

Study Officials

  • Christian Meyer, Dr.

    University of Greifswald

    PRINCIPAL INVESTIGATOR
  • Ulrich John, Prof. Dr.

    University of Greifswald

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
CARE PROVIDER, OUTCOMES ASSESSOR
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
FACTORIAL
Sponsor Type
OTHER

Study Record Dates

First Submitted

May 15, 2008

First Posted

May 19, 2008

Study Start

October 1, 2004

Primary Completion

August 1, 2008

Study Completion

June 1, 2009

Last Updated

May 19, 2008

Record last verified: 2008-05