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Study identifier: NCT06484075 Synced from ClinicalTrials.gov · July 29, 2026
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Suvorexant for Alcohol Use Disorder (AUD): Neural Mechanisms

Condition: Healthy Volunteers · Alcohol Use Disorder (AUD)  ·  Sponsor: National Institute on Alcohol Abuse and Alcoholism (NIAAA)

PhasePhase 1/Phase 2
Planned participants180
Who can joinAll sexes, 18 Years to 75 Years
Healthy volunteersYes

About this study

Background: Alcohol use disorder (AUD) is a leading cause of disease and death worldwide. New treatments for AUD are needed. Dopamine, a chemical that carries signals between brain cells, is thought to play a role in alcohol addiction. Researchers want to learn how Suvorexant, a drug used to treat sleep disorders, affects dopamine receptors in the brain. Objective: To see how Suvorexant affects dopamine receptors in people with AUD and in healthy people. Eligibility: People aged 18 to 75 years seeking treatment for AUD. Healthy volunteers are also needed. Design: Participants with AUD will stay in the clinic for at least 10-28 days for alcohol detoxification. They will receive normal treatment for AUD. Suvorexant is a medicine used to treat sleep problem that is taken taken by mouth, once a day. Some participants will take the study drug. Others will take a placebo. The placebo looks like the study drug but does not contain any medicine. Participants will not know which they are taking. Participants will wear a device that looks like a wristwatch to track their movements during their clinic stay. Participants will have blood tests and 3 brain imaging scans before starting on the study drug: 2 positron emission tomography (PET) and 1 magnetic resonance imaging (MRI) scan. They will be injected with a radioactive tracer during each PET scan. Participants will have tests to assess their thinking, memory, and attention. They will have sleep studies. Imaging scans and …

This description comes directly from the study's public registry record.

Talk to the study team

Michele-Vera I Yonga, C.R.N.P.  ·  (301) 273-4169  ·  michelevera.yonga@nih.gov

Nora D Volkow Adler, M.D.  ·  (301) 443-6480  ·  nvolkow@nida.nih.gov

Always discuss trial participation with your own doctor first.

Locations (1)

National Institutes of Health Clinical CenterBethesda, Maryland, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT06484075