Electronic Cigarettes in Daily Dependent Smokers

May 4, 2015 updated by: Laurie Zawertailo, Centre for Addiction and Mental Health

A Behavioral Assessment of Electronic Cigarettes in Reducing Cue- and Withdrawal-induced Craving in Daily Dependent Smokers

The aim of this study is to measure nicotine cue- and withdrawal-induced craving in current smokers under four distinct conditions: after smoking a conventional cigarette, an electronic cigarette (e-Cigarette) containing nicotine, an e-Cigarette without nicotine, and after taking a nicotine lozenge. Participants will be asked to attend four morning study visits after overnight smoking abstinence. Standardized questionnaires will be used to assess changes under each condition, allowing for the investigation of the efficacy of e-Cigarettes in reducing craving by replacing the behavioral component of smoking with minimal risk of adverse effects.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Many addiction models postulate stimuli to be linked with nicotine intake and reward after prolonged use. As such, smoking becomes more heavily based in habit, initiated by cues. Craving has been found to be a crucial component of continued smoking and relapse in response to various environmental and behavioral cues. Electronic Cigarettes (e-Cigarettes) are new smoking products emerging in consumer markets that often mimic conventional tobacco cigarettes. E-Cigarettes commonly include a cartridge, a heating element, a puff sensor, and a battery. When a user draws on the device, the heating element is activated and the cartridge fluid is vaporized. Users then inhale the aerosol containing droplets of the vaporized fluid. This study will empirically assess the efficacy of e-Cigarettes in alleviating craving by replacing the behavioral component of smoking. Using standardized questionnaires, intra-subject changes in cue- and withdrawal-induced craving after smoking an e-Cigarette without nicotine will be compared with that after either smoking a conventional cigarette, an e-Cigarette with nicotine, or taking a 4mg lozenge.

Study Type

Interventional

Enrollment (Actual)

43

Phase

  • Phase 4

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, M5S 2S1
        • Centre for Addiction and Mental Health, BACDRL Lab

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 to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Current daily smoker
  • Smoke minimum of 10 cigarettes per day
  • Fagerstrom Test of Nicotine Dependence Score equal or greater than 3
  • Never used an e-Cigarette prior to the study
  • No intention to quit smoking within the next 3 months
  • Able to provide written informed consent
  • Able and willing to attend scheduled appointments

Exclusion Criteria:

  • Any serious medical or unstable psychiatric problems requiring treatment
  • Pregnancy or lactation

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: Crossover Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: E-Cigarette with nicotine
Electronic cigarette with cartridge fluid containing nicotine
Drug: Nicotine
E-Cigarette with nicotine cartridge
Placebo Comparator: E-Cigarette without nicotine
Electronic cigarette with cartridge fluid containing no nicotine (placebo)
Drug: Placebo
E-Cigarette with 0mg nicotine cartridge

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Cue-induced nicotine craving
Time Frame: 1 hour after condition
Craving assessment after presentation of smoking- and neutral-cues 1 hour after condition
1 hour after condition

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Withdrawal-induced nicotine craving
Time Frame: 3 hours after condition
Craving assessment after presentation of smoking- and neutral-cues 3 hours after condition
3 hours after condition

Collaborators and Investigators

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

Sponsor

Centre for Addiction and Mental Health

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

March 1, 2014

Primary Completion (Actual)

April 1, 2015

Study Completion (Actual)

April 1, 2015

Study Registration Dates

First Submitted

April 7, 2014

First Submitted That Met QC Criteria

April 7, 2014

First Posted (Estimate)

April 9, 2014

Study Record Updates

Last Update Posted (Estimate)

May 5, 2015

Last Update Submitted That Met QC Criteria

May 4, 2015

Last Verified

May 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 001/2014

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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