- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04430543
Neural and Behavioral Effects of Cognitive Bias Modification (CBM)
Addressing Problem Drinking From the Bottom-Up: An Investigation of the Neural and Behavioral Effects of Cognitive Bias Modification (CBM)
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Forty heavy/at-risk drinkers (ages 18-34) who report an interest in changing their drinking behavior will be recruited for this proposed project. "Interest" will be operationalized as an affirmative answer on an item adapted (for past-month) from the CAGE questionnaire: "In the past month, have you felt you should cut down or stop drinking?" (Mayfield, McLeod, & Hall, 1974). Heavy/at-risk drinking will be defined in terms of consumption (7+/14+ drinks per week and/or 3+/4+ drinks on one occasion over the past week for women and men, respectively; USDHHS, 2005) and score on the Alcohol Use Disorders Identification Test (AUDIT score of 8-19; Babor, Higgins-Biddle, Saunders, & Monteiro, 2001). A score between 8-19 on the AUDIT is indicative of heavy use while scores 20 and above are indicative of a more severe alcohol use disorder (i.e., "dependence", DSM-IV; APA, 2013; APA, 2000). Participants will be recruited through online advertisements on Craigslist, social media websites, and "Quickie Job Board" listings on student websites as well as via flyers in community and student health centers. Upon responding to advertisements participants will be administered a phone screen or complete online screening survey to determine study eligibility.
If eligible, baseline assessments will be administered at an in person appointment, including self-report assessments about alcohol use, drug use, consequences, and alcohol craving. Participants will complete a baseline fMRI scan, which involves administration of two versions of an alcohol cue reactivity (CR) task. Both CR tasks administered in the scanner will consist of a block design. The first alcohol CR task consists of two types of blocks-1) alcohol and 2) neutral beverage (i.e., soft drinks, juice, water). Subjects will be presented with 40 alcohol images and 40 neutral beverage images, respectively. The second task, the cued-CR task, involves 3 blocks utilizing the same images as the alcohol-CR task. Subjects will receive instructions regarding their reaction to the photos-1) INHIBIT CR (alcohol images), 2) INHIBIT NEUTRAL (neutral beverage images), and 3) INDULGE CR (alcohol images). More specifically, participants will be given the instruction to imagine each image is available to them and to either inhibit their natural reaction to the images presented (alcohol in one block, neutral beverages in another block) or think about the possibility of consuming, in this moment, each (alcohol-containing) beverage shown. This task was inspired by fMRI studies using CR tasks and cognitive restraint strategies to inhibit cravings for food and/or alcohol (Naqvi et al., 2015; Yokum & Stice, 2013). For both tasks, each image will be presented for 4 seconds followed by a 2 second inter-image interval. Participants will be asked to rate their level of craving after each block for the first task only. Following this baseline scan, participants will complete a brief web-based intervention for alcohol use, Rethinking Drinking: Alcohol and Your Health (NIAAA, 2015), and will subsequently be randomized to either cognitive bias modification (CBM) or sham training. They will complete the first session of either CBM or sham training after randomization as well as an additional 4 CBM/sham sessions at home (via web) over one week following baseline. Participants will return to the lab one-week following their baseline appointment. At follow-up assessment, participants will complete all baseline assessment measures in addition to a second fMRI session consisting of the same CR tasks. Finally, participants will be emailed a link to a web-based survey at 1- and 6-months following baseline to assess drinking behavior. Data analysis will employ region of interest (ROI) analysis. Predefined ROIs include the bilateral amygdala, nucleus accumbens (NAcc), and dorsolateral and medial prefrontal cortex (dlPFC and mPFC). Anatomical ROIs will be generated using the Wake Forest University (WFU) Pickatlas automatic anatomical labeling tool (Maldjian, Laurienti, Kraft, & Burdette, 2003) available for SPM. The analytic plan for testing study hypotheses are as follows: Primary Aim 1-For the alcohol CR task, two within subject contrasts will be calculated-1] alcohol CR > neutral CR pre-CBM/sham and 2] (alcohol CR > neutral CR) pre-CBM/sham - (alcohol CR > neutral CR) post-CBM/sham-in pre-defined ROIs. Primary Aim 2-as with the alcohol CR task, the within subject contrasts will be 1] INDULGE CR > INHIBIT CR pre-CBM/sham and 2] (INDULGE CR > INHIBIT CR) pre-CBM/sham - (INDULGE CR > INHIBIT CR) post-CBM/sham. Similar within subject contrasts will be explored for INHIBIT CR and INHIBIT NEUTRAL CR as a control. T-tests will be used to compare within subject contrasts for each task as well as to compare between-group contrasts (i.e., alcohol CR and INHIBIT CR pre-and post- CBM/sham). Secondary Aim: Correlations will be run to determine whether BL BOLD activity in each ROI significantly correlate with behavioral measures for both BL and 1-week follow-up. For significant correlations, pre- and post-CBM/sham difference scores will be calculated for behavioral measures and then correlated with significant BOLD contrasts representing change in neural activity.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Massachusetts
-
Boston, Massachusetts, United States, 02215
- Rajen Kilachand Center for Integrated Life Sciences and Engineering at Boston University
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- current hazardous drinking (score of 8+ on USAUDIT-C)
- interest in changing drinking
- English-speaking
- able to provide informed consent
Exclusion Criteria:
- Score of 25+ on USAUDIT
- current or past treatment for alcohol or drug use
- lifetime diagnosis of other substance use disorder
- self-reported weekly or more other drug use as indicated on the NIDA-modified Alcohol, Smoking, and Substance Involvement Screening Test
- history of head injury or loss of consciousness
- lifetime diagnosis of bipolar disorder, psychotic symptomatology, organic mental disorder, seizure disorder, or central nervous system disease
- pregnancy
- current use of psychotropic medication
- history of delirium tremens and/or seizures as a result of alcohol withdrawal
- contraindications to fMRI (claustrophobia, pregnancy, metal, pacemaker, etc.).
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: SINGLE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: CBM Group
This group will receive Cognitive Bias Modification training
|
CBM sessions are computer tasks that take 15 minutes each.
CBM is similar to an alcohol approach avoidance task (AAT) in that they will involve moving their mouse forward to simulate an avoidance/push response and backward to simulate an approach/pull response in response to alcohol and neutral stimuli depending on photograph orientation.
Photos will get larger as if coming toward the participant when "pulled" and will get smaller as if moving away when "pushed".
CBM will involve pushing 90% of alcohol stimuli (pulling 10%) and pulling 90% of neutral stimuli (pushing 10%).
|
SHAM_COMPARATOR: Control Group
This group will receive Sham (control) training
|
Sham training sessions are computer tasks that take 15 minutes each.
Sham training is similar to an alcohol approach avoidance task (AAT) in that they will involve moving their mouse forward to simulate an avoidance/push response and backward to simulate an approach/pull response in response to alcohol and neutral stimuli depending on photograph orientation.
Photos will get larger as if coming toward the participant when "pulled" and will get smaller as if moving away when "pushed".
Sham training will involve pushing and pulling 50% of each type of stimuli (alcohol and neutral)
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
BOLD signal change in ROIs (amygdala, NAcc, mPFC, dlPFC) during alcohol cue-reactivity
Time Frame: 1-week
|
decreased signal indicates better outcomes for amygdala, NAcc, and mPFC; increased signal indicates better outcomes for dlPFC
|
1-week
|
BOLD signal change in ROIs (amygdala, NAcc, mPFC, dlPFC) during INHIBIT cue-reactivity
Time Frame: 1-week
|
decreased signal indicates better outcomes for amygdala, NAcc, and mPFC; increased signal indicates better outcomes for dlPFC
|
1-week
|
BOLD signal change in ROIs (amygdala, NAcc, mPFC) during INDULGE cue-reactivity
Time Frame: 1-week
|
decreased signal indicates better outcomes for amygdala, NAcc, and mPFC
|
1-week
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Drinking Behavior
Time Frame: 1-week
|
Daily Drinking Questionnaire quantity item "most drinks on one occasion"; range 0-31; higher score = more drinking/worse outcome
|
1-week
|
Drinking Behavior
Time Frame: 1-month
|
Daily Drinking Questionnaire quantity item "most drinks on one occasion"; range 0-31; higher score = more drinking/worse outcome
|
1-month
|
Drinking Behavior
Time Frame: 6-months
|
Daily Drinking Questionnaire quantity item "most drinks on one occasion"; range 0-31; higher score = more drinking/worse outcome
|
6-months
|
Alcohol Craving
Time Frame: 1-week
|
Score on Desire for Alcohol Questionnaire; range = 14-98; higher scores reflect higher desire for alcohol (worse outcome)
|
1-week
|
Alcohol Craving
Time Frame: 1-month
|
Score on Desire for Alcohol Questionnaire; range = 14-98; higher scores reflect higher desire for alcohol (worse outcome)
|
1-month
|
Alcohol Craving
Time Frame: 6-months
|
Score on Desire for Alcohol Questionnaire; range = 14-98; higher scores reflect higher desire for alcohol (worse outcome)
|
6-months
|
Collaborators and Investigators
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 4633E
- 1F31AA025522-01A1 (NIH)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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