rTMS Effects on Smoking Cessation and Cognition in Schizophrenia

NCT ID: NCT00736710

Last Updated: 2012-12-05

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

15 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-12-31

Study Completion Date

2011-05-31

Brief Summary

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Patients with schizophrenia have high rates of cigarette smoking and tobacco dependence, and great difficulties in quitting smoking. The development of novel and more effective treatments for tobacco dependence in this population is thus needed. This study will test the hypothesis that repetitive transcranial magnetic stimulation (rTMS) may facilitate smoking cessation with the transdermal nicotine patch (TNP) in patients with schizophrenia motivated to quit smoking. A total of N=40 smokers with schizophrenia would be assigned to either active rTMS (N=20) or sham rTMS (N=20) as a treatment regimen of 5X/week treatments for four weeks. All subjects would receive TNP (21 mg/24h) and weekly group behavioral therapy for smoking cessation for a total of 10 weeks. The investigators predict that active rTMS will be well-tolerated and superior to sham rTMS for enhancing smoking cessation rates in smokers with schizophrenia.

Detailed Description

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Conditions

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Cigarette Smoking Schizophrenia

Keywords

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Repetitive Transcranial Magnetic Stimulation Cigarette smoking Schizophrenia Randomized Double-blind Placebo-controlled longitudinal nicotine patch

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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1

Group Type EXPERIMENTAL

Repetitive Transcranial Magnetic Stimulation (rTMS)

Intervention Type PROCEDURE

The rTMS procedures will be delivered in a single-blind fashion by the rTMS technician at the CAMH rTMS Laboratory. All subjects would be enrolled in a 10-week smoking cessation program using weekly group behavioral therapy which will emphasize psychoeducation about the effects of smoking on psychiatric and medical aspects of schizophrenia, social skills training, relapse-prevention skills training and benefits of quitting smoking. All subjects would start group therapy interventions in Week 1 of the trial, and begin rTMS procedures in a separate session on Week 2. The transdermal nicotine patch (TNP; 21 mg/24h) would be applied during the quit date at Week 3 (Day 15). At the end of the 10-week trial, TNP and group therapy would be discontinued.

2

Group Type SHAM_COMPARATOR

Sham Repetitive Transcranial Magnetic Stimulation (rTMS)

Intervention Type PROCEDURE

The rTMS procedures will be delivered in a single-blind fashion by the rTMS technician at the CAMH rTMS Laboratory. All subjects would be enrolled in a 10-week smoking cessation program using weekly group behavioral therapy which will emphasize psychoeducation about the effects of smoking on psychiatric and medical aspects of schizophrenia, social skills training, relapse-prevention skills training and benefits of quitting smoking. All subjects would start group therapy interventions in Week 1 of the trial, and begin rTMS procedures in a separate session on Week 2. The transdermal nicotine patch (TNP; 21 mg/24h) would be applied during the quit date at Week 3 (Day 15). At the end of the 10-week trial, TNP and group therapy would be discontinued.

Interventions

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Repetitive Transcranial Magnetic Stimulation (rTMS)

The rTMS procedures will be delivered in a single-blind fashion by the rTMS technician at the CAMH rTMS Laboratory. All subjects would be enrolled in a 10-week smoking cessation program using weekly group behavioral therapy which will emphasize psychoeducation about the effects of smoking on psychiatric and medical aspects of schizophrenia, social skills training, relapse-prevention skills training and benefits of quitting smoking. All subjects would start group therapy interventions in Week 1 of the trial, and begin rTMS procedures in a separate session on Week 2. The transdermal nicotine patch (TNP; 21 mg/24h) would be applied during the quit date at Week 3 (Day 15). At the end of the 10-week trial, TNP and group therapy would be discontinued.

Intervention Type PROCEDURE

Sham Repetitive Transcranial Magnetic Stimulation (rTMS)

The rTMS procedures will be delivered in a single-blind fashion by the rTMS technician at the CAMH rTMS Laboratory. All subjects would be enrolled in a 10-week smoking cessation program using weekly group behavioral therapy which will emphasize psychoeducation about the effects of smoking on psychiatric and medical aspects of schizophrenia, social skills training, relapse-prevention skills training and benefits of quitting smoking. All subjects would start group therapy interventions in Week 1 of the trial, and begin rTMS procedures in a separate session on Week 2. The transdermal nicotine patch (TNP; 21 mg/24h) would be applied during the quit date at Week 3 (Day 15). At the end of the 10-week trial, TNP and group therapy would be discontinued.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* DSM-IV diagnosis of schizophrenia or schizoaffective disorder
* Smoking at least 10 cigarettes per day and a Fagerstrom score of at least 4.
* Willing to quit smoking in the next 30 days.

Exclusion Criteria

* Active alcohol or illicit drug abuse or dependence in the past 3 months
* A history of seizures, head trauma or space occupying lesions.
* A history of alcohol or illicit drug abuse in the past 6 months.
* Intolerance of the nicotine patch or its excipients
* Evidence for psychiatric instability as judged by acute psychotic exacerbations, suicidal or homicidal ideation.
* Females who are pregnant.
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Centre for Addiction and Mental Health

OTHER

Sponsor Role lead

Responsible Party

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Tony George

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Tony George, MD

Role: PRINCIPAL_INVESTIGATOR

Centre for Addiction and Mental Health

Locations

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Centre for Addiction and Mental Health

Toronto, Ontario, Canada

Site Status

Countries

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Canada

References

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Kozak K, Sharif-Razi M, Morozova M, Gaudette EV, Barr MS, Daskalakis ZJ, Blumberger DM, George TP. Effects of short-term, high-frequency repetitive transcranial magnetic stimulation to bilateral dorsolateral prefrontal cortex on smoking behavior and cognition in patients with schizophrenia and non-psychiatric controls. Schizophr Res. 2018 Jul;197:441-443. doi: 10.1016/j.schres.2018.02.015. Epub 2018 Feb 24.

Reference Type DERIVED
PMID: 29486960 (View on PubMed)

Related Links

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http://www.camh.net/research

Information about research at the Centre for Addiction and Mental Health

Other Identifiers

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121/2007

Identifier Type: -

Identifier Source: org_study_id