NCT01729507

Brief Summary

As an add-on treatment to behavioural therapy for tobacco dependence, anodal transcranial direct current stimulation (tDCS) significantly increases the cessation rate compared to treatment with sham tDCS; endpoint analysis will be performed 1, 3, 6 and 12 months after completion of the smoke-free programme in combination with tDCS. Craving, assessed with a visual analog scale (VAS), is reduced significantly in the verum treatment group compared to the sham tDCS group. tDCS is suitable for use in larger groups (8-12 people).

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
40

participants targeted

Target at P25-P50 for phase_4

Timeline
Completed

Started Jul 2012

Shorter than P25 for phase_4

Geographic Reach
1 country

1 active site

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

First Submitted

Initial submission to the registry

May 28, 2012

Completed
1 month until next milestone

Study Start

First participant enrolled

July 1, 2012

Completed
5 months until next milestone

First Posted

Study publicly available on registry

November 20, 2012

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2013

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2013

Completed
Last Updated

November 27, 2012

Status Verified

November 1, 2012

Enrollment Period

1 year

First QC Date

May 28, 2012

Last Update Submit

November 25, 2012

Conditions

Keywords

Smoking cessationAdd on and smoking cessationTherapy for tobacco dependenceTranscranial direct current stimulation

Outcome Measures

Primary Outcomes (1)

  • cessation rate

    salivary cotinine in ng/ml and the carbon monoxide content of expired air (COppm and %COHb)will be measured.

    at 4 weeks after last intervention

Secondary Outcomes (9)

  • Craving

    week one directly before first tDCS intervention

  • Craving

    week two directly before second tDCS intervention

  • Craving

    week three directly before third tDCS intervention

  • Craving

    week four directly before fourth tDCS intervention

  • Craving

    week five directly before fifth tDCS intervention

  • +4 more secondary outcomes

Other Outcomes (1)

  • cessation rate

    at 12 weeks after last intervention

Study Arms (2)

Treatment with tDCS

ACTIVE COMPARATOR

This group will receive 7x verum treatment with tDSC. All participants receive standardised behavioural therapy ('The smoke-free programme')

Other: tDCSBehavioral: standardised behavioural therapy

7x sham treatment

PLACEBO COMPARATOR

This group will receive 7x sham treatment. All participants will receive standardised behavioural therapy ('The smoke-free programme')

Behavioral: standardised behavioural therapy

Interventions

tDCSOTHER

Stimulation will be performed with a DC stimulator MC Location of stimulation: Anode over the left dorsolateral cortex, corresponding with F3 (in 10-20 EEG system); cathode over the right temporal cortex Intensity: 2 mA Total duration: Constant stimulation for 20 minutes

Also known as: Stimulator MC (neuroConn GmbH, Ilmenau, Germany).
Treatment with tDCS

The standardised behavioural therapy will be performed according to the certified "Smoke-free programme' of the of the Institute for Therapy Research ('Institut für Therapieforschung', IFT). The course leaders' manual specifies that the ideal number of participants is 8-12. 1 group session for 90 minutes/week for 7 weeks, 2 telephone calls of 10 minutes each, first after the fourth session 3 days after collective smoking cessation, second on day 3 after the last session.

7x sham treatmentTreatment with tDCS

Eligibility Criteria

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

You may qualify if:

  • Age of legal majority
  • Smoker for \> 1 year, \>10 cigarettes/day
  • CO\>10ppm; measurement in expired air by means of a Micro Smokerlyzer (Bedfont Scientific Ltd., Maidstone, England)
  • Quantification of tobacco dependence with the Fagerström Test
  • The patient should not have attempted to quit smoking or have received drug treatment for quitting smoking for at least 3 months before the start of the study
  • Ability to give informed consent

You may not qualify if:

  • Acute psychiatric disorders according to ISD-10/DSM-IV
  • Under legal care
  • Pregnancy
  • Contraceptive methods with a Pearl Index \>1
  • Other severe psychiatric disorders
  • Acute suicidality
  • Drug, medication or alcohol abuse at the time of the study
  • Dementia (DSM-IV/ICD-10 criteria)
  • History of severe craniocerebral trauma
  • Indications of structural damage to the basal ganglia or the brain stem
  • Severe neurological disorders (such as prolapsed disk in the past 6 months, polyneuropathy, Parkinson syndrome, epilepsy, dementia, systemic neurological diseases, cerebrovascular diseases, history of stroke, repeated cerebral ischaemia with progressive worsening, elevated cerebral pressure, normal pressure hydrocephalus)
  • Severe medical disorders (such as manifest arterial hypertension, severe cardiovascular disorders, cardiac pacemaker, respiratory insufficiency)
  • Any electronic implants
  • Malignant diseases of any kind, also in the medical history
  • Severe active infectious diseases
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ludwig Maximilans University

Munich, Bavaria, 80336, Germany

RECRUITING

MeSH Terms

Conditions

Smoking CessationTobacco Use Disorder

Interventions

Transcranial Direct Current Stimulation

Condition Hierarchy (Ancestors)

Health BehaviorBehaviorSubstance-Related DisordersChemically-Induced DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Electric Stimulation TherapyTherapeuticsConvulsive TherapyPsychiatric Somatic TherapiesBehavioral Disciplines and ActivitiesElectroshockPsychological Techniques

Study Officials

  • Frank Padberg, PD Dr.

    Department of Psychotherapy and Psychosomatic Medicine

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
physician

Study Record Dates

First Submitted

May 28, 2012

First Posted

November 20, 2012

Study Start

July 1, 2012

Primary Completion

July 1, 2013

Study Completion

July 1, 2013

Last Updated

November 27, 2012

Record last verified: 2012-11

Locations