Nicotine DependenceTobacco SmokingSmoking CessationNicotine Use DisorderTobacco Use DisorderSubstance Use Disorders
No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
Prior Safety Data
This treatment has already been tested in at least one earlier human trial.
Ready to participate?
Review the details below, then apply to join this clinical trial.
At a Glance
Age
18 – 85
Sex
Any
Trial phase
Phase 4
Study type
Interventional
Purpose
Treatment
Participants needed
160 (estimated)
Sponsor
Centre for Addiction and Mental Health · Other
Who this trial is looking for
This trial is looking for adults who want to quit smoking. Participants will receive daily treatment for two weeks and then follow-up sessions to check on their progress.
Are You a Good Fit for This Trial?
Must not be takingBupropionVareniclineNRTCytisine
Rules you outPregnancyAlcohol dependenceKidney diseaseKnown hypersensitivity to varenicline
You may be able to join if
I can provide written consent
I am willing to follow study procedures
I am between 18 and 85 years old
I smoke at least 8 cigarettes a day
I want help to quit smoking
I can attend the required clinic visits for two weeks
I am otherwise healthy
You may not be able to join if
I have used smoking cessation medication in the past 3 months
I currently use nicotine products besides cigarettes
I have an unstable psychiatric illness
I have a history of seizures or epilepsy
I have had concussions or head injuries
I am currently pregnant or planning to become pregnant
I have a pacemaker or other implanted device
I have metal in my skull
Summarized in plain language from this trial's official eligibility criteria.
The full criteria are further down this page — only the research team can
confirm whether you qualify.
Think this trial could be right for you?
Answer a few quick questions to see if you may meet the eligibility requirements.
The goal of this clinical trial is to determine if active transcranial direct current stimulation (tDCS) plus varenicline is an effective, safe and accessible treatment option for smoking cessation. The main questions this trial aims to answer are:
1. Does active tDCS plus varenicline improve short-term and long-term smoking abstinence rates compared to sham tDCS plus varenicline?
2. Are the safe…
The goal of this clinical trial is to determine if active transcranial direct current stimulation (tDCS) plus varenicline is an effective, safe and accessible treatment option for smoking cessation. The main questions this trial aims to answer are:
1. Does active tDCS plus varenicline improve short-term and long-term smoking abstinence rates compared to sham tDCS plus varenicline?
2. Are the safety profiles between active tDCS plus varenicline and sham tDCS plus varenicline different?
The tDCS treatment schedule includes 10 daily sessions for the first 2 weeks (M to F), followed by 5 single bi-weekly booster sessions for the remainder of the treatment period. Participants will come in-person for two follow-up sessions to assess smoking behaviour at 6- and 12-months post-treatment.
Trial Locations
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Eligibility Criteria
Inclusion Criteria:
* Be able to provide informed written consent
* Stated willingness to comply with all study procedures
* Age 18-85 years
* Smoke ≥ 8 cigarettes per day (CPD)
* Is seeking treatment for tobacco dependence
* Willing to attend the required clinic appointments (Two consecutive weeks…
Inclusion Criteria:
* Be able to provide informed written consent
* Stated willingness to comply with all study procedures
* Age 18-85 years
* Smoke ≥ 8 cigarettes per day (CPD)
* Is seeking treatment for tobacco dependence
* Willing to attend the required clinic appointments (Two consecutive weeks, Monday through Friday)
* Otherwise healthy (i.e. not suffering from any major illness/condition that would impact their participation in the study)
Exclusion Criteria:
* Use of smoking cessation medication (e.g. buproprion, varenicline, NRT, cytisine) in the past 3 months
* Current regular use of nicotine-containing products besides cigarettes (e.g. electronic cigarettes, etc.)
* Unstable psychiatric illness that would adversely impact study participation and compliance (determined by the QI)
* History of seizures/epilepsy
* Lifetime history of concussions or head traumas
* Current pregnancy or plans to become pregnant
* Current pacemakers or implanted electrical devices
* Current metal embedded in the skull
* Presence of skin lesions, open wounds, or bruising at stimulation sites; or
* Contraindications to varenicline use (e.g. pregnant/breastfeeding, alcohol dependence, kidney disease/renal impairment, known hypersensitivity to varenicline)
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