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Effects of varenicline and cognitive bias modification on neural response to smoking-related cues: study protocol for a randomized controlled study.

Publication ,  Journal Article
Attwood, AS; Williams, T; Adams, S; McClernon, FJ; Munafò, MR
Published in: Trials
October 7, 2014

BACKGROUND: Smoking-related cues can trigger drug-seeking behaviors, and computer-based interventions that reduce cognitive biases towards such cues may be efficacious and cost-effective cessation aids. In order to optimize such interventions, there needs to be better understanding of the mechanisms underlying the effects of cognitive bias modification (CBM). Here we present a protocol for an investigation of the neural effects of CBM and varenicline in non-quitting daily smokers. METHODS/DESIGN: We will recruit 72 daily smokers who report smoking at least 10 manufactured cigarettes or 15 roll-ups per day and who smoke within one hour of waking. Participants will attend two sessions approximately one week apart. At the first session participants will be screened for eligibility and randomized to receive either varenicline or a placebo over a seven-day period. On the final drug-taking day (day seven) participants will attend a second session and be further randomized to one of three CBM conditions (training towards smoking cues, training away from smoking cues, or control training). Participants will then undergo a functional magnetic resonance imaging scan during which they will view smoking-related pictorial cues. Primary outcome measures are changes in cognitive bias as measured by the visual dot-probe task, and neural responses to smoking-related cues. Secondary outcome measures will be cognitive bias as measured by a transfer task (modified Stroop test of smoking-related cognitive bias) and subjective mood and cigarette craving. DISCUSSION: This study will add to the relatively small literature examining the effects of CBM in addictions. It will address novel questions regarding the neural effects of CBM. It will also investigate whether varenicline treatment alters neural response to smoking-related cues. These findings will inform future research that can develop behavioral treatments that target relapse prevention. TRIAL REGISTRATION: Registered with Current Controlled Trials: ISRCTN65690030. Registered on 30 January 2014.

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Published In

Trials

DOI

EISSN

1745-6215

Publication Date

October 7, 2014

Volume

15

Start / End Page

391

Location

England

Related Subject Headings

  • Varenicline
  • Treatment Outcome
  • Tobacco Use Disorder
  • Time Factors
  • Surveys and Questionnaires
  • Stroop Test
  • Smoking Prevention
  • Smoking Cessation
  • Smoking
  • Research Design
 

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Attwood, A. S., Williams, T., Adams, S., McClernon, F. J., & Munafò, M. R. (2014). Effects of varenicline and cognitive bias modification on neural response to smoking-related cues: study protocol for a randomized controlled study. Trials, 15, 391. https://doi.org/10.1186/1745-6215-15-391
Attwood, Angela S., Tim Williams, Sally Adams, Francis J. McClernon, and Marcus R. Munafò. “Effects of varenicline and cognitive bias modification on neural response to smoking-related cues: study protocol for a randomized controlled study.Trials 15 (October 7, 2014): 391. https://doi.org/10.1186/1745-6215-15-391.
Attwood, Angela S., et al. “Effects of varenicline and cognitive bias modification on neural response to smoking-related cues: study protocol for a randomized controlled study.Trials, vol. 15, Oct. 2014, p. 391. Pubmed, doi:10.1186/1745-6215-15-391.
Journal cover image

Published In

Trials

DOI

EISSN

1745-6215

Publication Date

October 7, 2014

Volume

15

Start / End Page

391

Location

England

Related Subject Headings

  • Varenicline
  • Treatment Outcome
  • Tobacco Use Disorder
  • Time Factors
  • Surveys and Questionnaires
  • Stroop Test
  • Smoking Prevention
  • Smoking Cessation
  • Smoking
  • Research Design