Impact of Varenicline on Blood-Oxygen-Level Dependent (BOLD) Functional Magnetic Resonance Imaging (fMRI) Activation on Smokers (GRAND)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00934024
Recruitment Status : Completed
First Posted : July 8, 2009
Last Update Posted : November 1, 2012
Information provided by:
Medical University of South Carolina

Brief Summary:
The purpose of this study is to evaluate the impact of varenicline treatment on cue induced craving to smoking using brain imaging. The investigators hypothesize that participants will report reduced urges to smoke and will have less activation in parts of the brain associated with craving.

Condition or disease Intervention/treatment Phase
Nicotine Dependence Drug: varenicline Not Applicable

Detailed Description:
Treatment with varenicline reduces overall subjective cigarette craving and smoking reward in nicotine-dependent smokers. This preliminary study will explore the impact of varenicline treatment on smoking cue-induced craving and associated regional brain activation using BOLD fMRI. Twenty healthy smokers (10 males, 10 females) will undergo two BOLD fMRI scans with the presentation of smoking-related and neutral cues at baseline and after five weeks of treatment with open-label varenicline. The investigators hypothesize that participants will report reduced urges to smoke on the Questionnaire of Smoking Urges-Brief and have less activation of the brain areas associated with craving during the fMRI after 5 weeks of varenicline and smoking cessation counseling compared to the baseline scan.

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 21 participants
Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: Impact of Varenicline on Blood-Oxygen-Level Dependent (BOLD) Functional Magnetic Resonance Imaging (fMRI) Activation on Smokers (GRAND)
Study Start Date : April 2009
Actual Primary Completion Date : January 2012
Actual Study Completion Date : January 2012

Resource links provided by the National Library of Medicine

MedlinePlus related topics: MRI Scans

Intervention Details:
  • Drug: varenicline
    Participants will be treated with a standard course of varenicline, 0.5 mg 1 tablet every day for 3 days, then 0.5 mg 1 tab twice a day for four days, and 1 mg 1 tablet twice a day for three months.
    Other Name: Chantix

Primary Outcome Measures :
  1. Regional brain activation in response to craving from cues to smoke [ Time Frame: 3 1/2 months ]

Secondary Outcome Measures :
  1. Smoking cessation [ Time Frame: 3 1/2 months ]

Information from the National Library of Medicine

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Ages Eligible for Study:   21 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Age 21 - 60 treatment-seeking right handed smokers.
  2. Meet criteria for primary nicotine dependence confirmed by FTND and smoked at least 70% of days in the last 30 days prior to assessment.
  3. General good health confirmed by history & physical.
  4. Able to read and understand questionnaires and informed consent.
  5. Motivated to quit, willing to set a target quit date (TQD) and abstain from smoking after TDQ.
  6. Participants must have a negative urine drug screen (UDS) and pregnancy test prior to imaging sessions and beginning varenicline treatment.
  7. Female participants will use a reliable method of birth control throughout the study.
  8. Demonstrate subjective response to cues in a laboratory cue reactivity session.

Exclusion Criteria:

  1. Currently meets DSM-IV criteria for any other psychoactive substance dependence disorder except nicotine dependence.
  2. Any psychoactive substance abuse within the last 30 days as evidenced by subject report or urine drug screen.
  3. Use of other tobacco products.
  4. Current use of nicotine replacement therapy, bupropion, or other smoking cessation treatment.
  5. Previous failed attempt on varenicline.
  6. Meets DSM-IV criteria for current axis I disorders of major depression, panic disorder, obsessive compulsive disorder, post-traumatic stress syndrome, bipolar affective disorder, schizophrenia, or any other psychotic disorder or organic mental disorder.
  7. Current suicidal ideation with plan or homicidal ideation.
  8. Need for maintenance or acute treatment with any psychoactive medication including anti-seizure medications which could potentially interfere with fMRI.
  9. Clinically significant medical problems that would impair participation or limit ability to participate in scan.
  10. Sexually active females of child-bearing potential who are pregnant, nursing, or who are not using a reliable form of birth control.
  11. Has current charges pending for a violent crime (not including DUI related offenses).
  12. Persons with ferrous metal implants or pacemaker since fMRI will be used.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00934024

United States, South Carolina
Medical University of South Carolina
Charleston, South Carolina, United States, 29425
Sponsors and Collaborators
Medical University of South Carolina
Principal Investigator: Karen Hartwell, M.D. Medical Universtiy of South Carolina

Responsible Party: Karen Hartwell, M.D., Medical University of South Carolina - Clinical Neuroscience Division Identifier: NCT00934024     History of Changes
Other Study ID Numbers: HR#18521
First Posted: July 8, 2009    Key Record Dates
Last Update Posted: November 1, 2012
Last Verified: May 2010

Keywords provided by Medical University of South Carolina:
nicotine dependence

Additional relevant MeSH terms:
Tobacco Use Disorder
Substance-Related Disorders
Chemically-Induced Disorders
Mental Disorders
Nicotinic Agonists
Cholinergic Agonists
Cholinergic Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Physiological Effects of Drugs