About this trial
This research will translate findings from preclinical research and provide the initial clinical evidence that orexin antagonism reduces motivation for alcohol, as well as other alcohol-associated maladaptive behaviors in people with Alcohol Use Disorder. This study will also provide basic science information about the orexinergic mechanisms underlying the pharmacodynamic effects of alcohol in humans. As such, the outcomes will contribute to our understanding of the clinical neurobiology of Alcohol Use Disorder. Overall, the proposed work seeks to expand the scope of current clinical neuroscience research on alcohol addiction by focusing on orexin, which has strong preclinical evidence supporting its critical role in addiction but remains unstudied in humans.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
None
Disqualifiers
Able to speak and read English.
Not seeking treatment at the time of the study.
Between the ages of 21 and 55 years.
Engaging in at least one binge drinking episode, per the NIAAA definition, in the last 30 days.
Trial design
Crossover
Treatments tested in this trial
Alcohol
DrugThe pharmacodynamic effects of alcohol (0.2 and 0.4 g/kg) will be determined.
Placebo
DrugThe effects of placebo will be determined.
Suvorexant
DrugThe effects of suvorexant dose 1 will be determined.
Suvorexant
DrugThe effects of suvorexant dose 2 will be determined.
Treatment groups
Trial outcomes
Primary outcomes
Reinforcing Effects of Alcohol
Number of Times Subjects Choose Alcohol (Maximum of 5 Choices) Over Money
Secondary outcomes
Craving
Subjects will report their craving during 6 sessions while they are admitted to our inpatient unit. Measured using a 10 point craving questionnaire with higher scores meaning greater craving.
Mood
Subjects will complete the Profile of Mood States during 6 sessions while they are admitted to our inpatient unit. Scores range from 0 to 4 with higher scores indicating stronger mood.
Alcohol Response
Subjects will complete the Biphasic Alcohol Effects Scale during 6 sessions while they are admitted to our inpatient unit. Scores range from 0 to 10 with higher scores indicating greater responses.
Heart rate
Beats per minute. Measured daily during inpatient admission.
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
William Stoops
Lead sponsor
University of Kentucky
Sponsor institution
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
Collaborator