Development and Evaluation of a Theory and Evidence-based Intervention to Reduce Hazardous Alcohol Consumption Among Treatment Seeking Smokers

June 9, 2026 updated by: Centre for Addiction and Mental Health

Evaluation of a Theory Informed Intervention to Reduce Hazardous Alcohol Consumption Among Treatment Seeking Smokers

This study will evaluate the implementation of a fully automated, direct-to-patient digital alcohol intervention embedded within the STOP Program's patient portal. The STOP Program is a large-scale, population-based smoking cessation initiative operating in over 300 primary care settings across Ontario. It provides free nicotine replacement therapy and behavioural support through a digital portal that facilitates patient self-enrollment and systematic data collection. As part of this study, patients who score ≥8 on the AUDIT-C will be offered the opportunity to view a brief intervention (BI). Those with an AUDIT-C score ≥10 will receive a cautionary message along with tailored content designed to help reduce hazardous drinking.

The intervention was developed based on a rapid review (PROSPERO: CRD42023445492) and a Delphi consensus process using the Behaviour Change Techniques Taxonomy V1. Key components include personalized feedback, normative comparisons, reflective prompts, and actionable behaviour change strategies. For patients scoring above a clinical threshold, additional messaging encourages caution regarding abrupt cessation and suggests consulting a healthcare provider.

Our primary outcome is acceptance of the new online resource.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

77

Phase

  • Not Applicable

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

  • Canada
    • Ontario
      • Toronto, Ontario, Canada, M6J1H4
        • Centre for Addiction and Mental Health

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

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • seeking treatment for smoking cessation
  • enrolling via the patient self-serve portal
  • AUDIT-10 score of 8 or higher

Exclusion Criteria:

  • none

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Patient Portal Prompt
Brief Alcohol Intervention
Behavioral: Brief alcohol intervention
The intervention is a prompt that that appears as an alert message in the patient portal, recommending the alcohol intervention.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
overall acceptance rate
Time Frame: Immediate: acceptance of offered intervention during baseline survey data collection (following eligibility determination in same survey).
Immediate: acceptance of offered intervention during baseline survey data collection (following eligibility determination in same survey).

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Provider-initiated discussion of alcohol use at the first clinical treatment visit
Time Frame: Assessed at the first clinical visit within 2 months after baseline survey completion.
Provider-initiated discussion of alcohol use at the first clinical treatment visit. Following self-enrolment, providers reviewed participant questionnaires prior to or during the first visit and were asked to record whether they had discussed alcohol use with the participant. This outcome is captured via the portal data-collection system.
Assessed at the first clinical visit within 2 months after baseline survey completion.

Collaborators and Investigators

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

Sponsor

Centre for Addiction and Mental Health

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 (Actual)

November 20, 2025

Primary Completion (Actual)

May 22, 2026

Study Completion (Actual)

May 22, 2026

Study Registration Dates

First Submitted

November 13, 2025

First Submitted That Met QC Criteria

November 13, 2025

First Posted (Actual)

November 14, 2025

Study Record Updates

Last Update Posted (Actual)

June 11, 2026

Last Update Submitted That Met QC Criteria

June 9, 2026

Last Verified

November 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • DCP-196026

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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