The goal of the proposed study is to examine whether brief training in regulation of craving (ROC-T) affects alcohol drinking. The study will consist of a basic screening (phone and online), and in person visit to determine eligibility and conduct pre-intervention baseline assessments, 1-4 training (ROC-T) visits, a post-intervention assessment visit, and 1-2 phone/online follow up assessments.The two active conditions of ROC-T are based on cognitive-behavioral treatments (CBT) and mindfulness-based treatments (MBT).
This is a Stage 1B Randomized-Controlled Trial (RCT). 177 heavy drinking young adult participants will be randomized to 4 x 45-minute web-based sessions of (1) CBT-ROC-T training, (2) MBT-ROC-T, or (3) CONTROL (no strategy) delivered over three weeks. Participants will be enrolled for 16 weeks (three weeks pre-, three weeks during, and ten weeks post-intervention).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
177
Participants will be trained in using the MBT-based mindfulness strategy as described above ("notice craving and accept the feeling without judgment or reaction"). Participants will then be instructed to think of accepting and non-reactive responses when they see the instruction "ACCEPT" during ROC-T. On each trial, participants will receive an instruction and then be exposed to a novel alcohol image for 6 seconds. On 25% of the trials, they will see the LOOK instruction, and be allowed to experience craving (as baseline). On 75% of the trials, participants will see ACCEPT and then practice thinking about the negative consequences of drinking. After the picture disappears, they will rate their craving on every trial using a 1-5 Likert scale.
Participants will be trained in using the CBT strategy by first considering and reading about the negative consequences of drinking. Participants will then be instructed to think of those negative consequences ("Focus on the negative consequences associated with drinking)" when they see the instruction "REFRAME" during ROC-T.On each trial, participants will receive an instruction and then be exposed to a novel alcohol image for 6 seconds. On 25% of the trials, they will see the LOOK instruction, and be allowed to experience craving (as baseline). On 75% of the trials, participants will see REFRAME and then practice thinking about the negative consequences of drinking. After the picture disappears, they will rate their craving on every trial using a 1-5 Likert scale
Yale University
New Haven, Connecticut, United States
RECRUITINGChange in frequency of heavy drinking days
Self-reports of daily alcohol use via smartphone-based ecological momentary assessment (EMA) is the primary source for this outcome variable, with Timeline Follow-Back (TLFB) data inserted to replace missing data from EMA. A heavy drinking day is defined as more than 3 or 4 standard drinks per day for women/men.
Time frame: From baseline to 2-weeks post-intervention and to the 10-week follow-up
Change in average estimated blood alcohol concentration (eBAC) per drinking day
Daily self-reports of alcohol use via smartphone-based ecological momentary assessment (EMA) is the primary source for this outcome variable, with Timeline Follow-Back (TLFB) data inserted to replace missing data from EMA. Estimated blood alcohol concentration (eBAC) is based on number of standard drinks reported per day, duration of drinking, and total body water (based on sex, age, height, and weight).
Time frame: From baseline to 2-weeks post-intervention and to the 10-week follow-up
Change in alcohol-related negative consequences
Daily self-reports of alcohol-related negative consequences (Brief Young Adult Alcohol Consequences Questionnaire) via smartphone-based ecological momentary assessment (EMA) is the primary source for this outcome variable. Total scores range from 0 to 24, with higher scores indicating greater alcohol-related negative consequences.
Time frame: From baseline to 2-weeks post-intervention and the 10-week follow-up
Reduction in World Health Organization (WHO) drinking risk level
Drinking risk levels are based on grams of pure alcohol per day in a given period and include abstinent (0 grams males/females), low risk (1 to 40g males/1 to 20g females), medium risk (41 to 60g males/21 to 40g females), high risk (61 to 100g males/41 to 60g females), or very high risk (greater to or equal to 101g males/61g females).
Time frame: From baseline to 2-weeks post-intervention and the 10-week follow-up
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