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Background:
Sights, sounds, and smells can be associated with alcohol and tempt people to drink. The connection between encountering cues and wanting to drink might be reduced by behavioral techniques, like giving the cues at certain times, in certain circumstances.
Objective:
To see if visual imagery and behavioral techniques can reduce alcohol craving and drinking.
Eligibility:
Healthy people ages 21 to 65 years old who are mildly concerned about their drinking and have had these habits in the past 3 months:
Design:
Participants will be screened with medical history, physical exam, blood tests, alcohol breath tests, hepatitis tests, and alcohol and drug use questionnaires.
Participants will get a smartphone to carry throughout the study. They will use it to report on their drinking, moods, and activities daily. The phone's global positioning system (GPS) will record their locations throughout each day.
There will be six (6) study visits approximately over four (4) weeks. Visits will last up to four (4) hours, but the final visit may last up to seven (7) hours. Visits include the following:
About a month after the last visit, participants will be called to ask about their drinking and cravings.
Full description
Objective: To evaluate alcohol memory retrieval-extinction, a novel behavioral procedure for reduction of craving and drinking, in problem drinkers.
Study population: We will collect evaluable data from up to 75 participants. Participants are evaluable if they complete ecological momentary assessment (EMA, described below). All participants will be adult alcohol drinkers (men: > 14 drinks/week or > 4 drinks/day; women: > 7 drinks/week or > 3 drinks/day) whose drinking scores as hazardous on the Alcohol Use Disorders Identification Test. Participants will not be seeking treatment for an alcohol-use disorder, be physiologically dependent on alcohol, or have other drug use disorders. Participants can have nicotine use disorder.
Design: A randomized study with three groups. Participants will use smartphones to provide geotagged reports of alcohol craving and drinking in daily life (EMA reports) before, between, and after a series of laboratory sessions. During sessions, participants will drink an alcoholic beverage (individualized to produce a 0.06 g/dL blood alcohol content) or a soft drink. Participants will then be repeatedly presented with alcohol or soft drink-associated cues without further drinking. These are the memory retrieval and extinction portions, respectively, of memory retrieval-extinction. Previous studies suggest this procedure can robustly reduce Pavlovian associations between cues and responses such as craving. The mechanism seems to involve memory reconsolidation, in which freshly retrieved associations (e.g. drink cues and consumption - pleasant effects) become more vulnerable to disruption by extinction.
Three groups will be tested: (1) alcohol retrieval / alcohol extinction will be compared to (2) soft-drink retrieval / alcohol extinction and (3) alcohol retrieval / soft-drink extinction. Before and after retrieval-extinction, participants will be tested for alcohol craving and cue-induced physiological responses in laboratory sessions. Retrieval-extinction will be followed by approximately one week of follow-up EMA reporting, with telephone contact approximately 30 days thereafter.
Outcome parameters:
Enrollment
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Inclusion criteria
Age between 21 and 65 years inclusive
Drinking at high levels for at least 10 different weeks during the last 90 days. High-level drinking for a given week can be either of the following:
A score greater than or equal to 8 and less than or equal to 15 on the self-report version of the Alcohol Use Disorders Identification Test (AUDIT), with endorsement of at least one item other than 1-3, because 1-3 assess only consumption, not concern or consequences
Self-report of liking or having neutral feelings about the sight and smell of alcoholic beverages
For women,
Exclusion criteria
Risk of alcohol withdrawal, as determined by any of the following:
Currently trying to quit drinking, or planning to quit or reduce alcohol drinking via formal treatment or support-group attendance in the next six months;
For women: pregnancy, breastfeeding, or planning to become pregnant during the experiment
Current liver disease or dysfunction, assessed by physical examination and medical history; and hepatitis C, chronic hepatitis B, or other current liver disease or dysfunction as assessed by physical examination and medical history or as reflected in blood levels more than 5 times the upper limit of normal in any of the following: aspartate transaminase (AST), alanine transaminase (ALT), or gamma-glutamyltransferase (GGT)
Any other medical illness or condition that in the judgment of the investigators is incompatible with alcohol consumption
Current use of prescription or over-the-counter medications or herbal products for which drinking alcohol is strictly prohibited. When the metabolic half-life of the medication/product is known, we will require at least 7 half-lives to have elapsed before any session involving alcohol consumption. If the half-life is not known (as might be the case for some herbal preparations), we will require at least 7 days to have elapsed since the last use before any session involving alcohol consumption
Substance-use disorder for any drug(s) other than alcohol or nicotine in the previous 12 months
Past or present diagnosis of bipolar disorder or any psychotic disorder; any history of suicide attempt or current suicidal ideation; present diagnosis of uncontrolled or untreated mood or anxiety disorder
Cognitive impairment severe enough to preclude informed consent or valid self-report
Primary purpose
Allocation
Interventional model
Masking
23 participants in 3 patient groups
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Central trial contact
David H Epstein, Ph.D.; NIDA IRP Screening Team
Data sourced from clinicaltrials.gov
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