Approach Bias Modification for the Treatment of Cannabis Use Disorder
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- STATUS
- Recruiting
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- End date
- Jun 27, 2023
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- participants needed
- 106
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- sponsor
- Medical University of South Carolina
Summary
Effective and durable treatments for cannabis use disorder remain elusive. Given the increasing prevalence rates of cannabis use and CUD nationwide, investigation of novel treatments is warranted. Implicit cognitive processing is an emerging, and potentially critical therapeutic target.
Cognitive models of addiction posit an override of explicit control-related cognitive processes by implicit reward-driven processes resulting from chronic drug exposure. One form of implicit cognitive processing is approach bias, or, the automatic tendency to approach rather than avoid drug cues, which has been identified for alcohol, nicotine, opioids, and cannabis. Cannabis approach bias predicts increased cannabis use, dependence severity, and cannabis-related problems among heavy cannabis users. Approach bias modification (ABM) is a novel treatment approach that seeks to reduce approach bias by attenuating the incentive-salience of drug cues, and subsequently, drug cue reactivity and drug use. ABM has been shown to reduce relapse rates in alcohol dependent adults by 10-13% at one-year follow-up, and dependence severity in nicotine dependent adults. Our pilot data suggests that ABM may also reduce cannabis craving and that gender may moderate the effect of ABM on cannabis sessions per day in non-treatment seeking adults with CUD. A recent fMRI study with alcohol-dependent adults found decreased mesolimbic activation in participants who received ABM compared to sham-control participants. ABM appears to target implicit reward-driven processes, and could be an effective adjunct to traditional psychosocial and/or future pharmacological interventions that target explicit control-related processes.
Building on our promising feasibility data, the proposed K23 research study will examine the effects of ABM on cue-reactivity and cannabis outcomes in a four-session randomized, double-blind, sham-controlled pilot treatment trial. One-hundred and six (106) treatment-seeking adults with moderate to severe CUD will be randomized to receive either MET/CBT plus ABM or Motivational Enhancement Therapy/Cognitive Behavioral Therapy(MET/CBT) plus sham-ABM. An equal number of men and women will be recruited and randomization will be stratified by gender. ABM sessions will occur following each of the three weekly MET/CBT therapy sessions. Primary outcomes will include cannabis cue-reactivity and cannabis use.
Details
| Condition | Cannabis Use Disorder |
|---|---|
| Treatment | Approach Bias Modification (ABM), Sham ABM, Psychosocial therapy for cannabis use disorder. |
| Clinical Study Identifier | NCT03629990 |
| Sponsor | Medical University of South Carolina |
| Last Modified on | 27 November 2021 |
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