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CompletedNCT05892432Updated Dec 26, 2025

Clinical Trial of Rybelsus (Semaglutide) Among Adults With Alcohol Use Disorder (AUD)

A Phase 2 interventional study of Semaglutide 3 MG [Rybelsus] and Semaglutide 7 MG [Rybelsus] in Alcohol Use Disorder, sponsored by University of Colorado, Denver. Completed at 1 site in United States. Open to participants aged 21 Years and older. Per ClinicalTrials.gov, last updated 2025-12-26.

Sponsored by University of Colorado, Denver · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
50
Allocation
Randomized
Ages
21 Years and older
Sex
All
01

Study summary

This study is a randomized controlled trial of oral semaglutide among treatment-seeking individuals with AUD. The investigators will randomly assign 50 participants to receive semaglutide (titrated to 7 milligrams (mg) per day) or matched placebo for 8 weeks. The primary aims are to assess the safety and tolerability of semaglutide in this population and to evaluate its effects, relative to placebo, on alcohol cue-elicited craving and alcohol consumption.

Read the detailed description

A screening visit will be conducted at which written informed consent will be obtained and inclusion/exclusion criteria will be assessed. Subsequently, eligible participants will be randomly assigned to take oral semaglutide or matched placebo for 8 weeks, with the semaglutide dose titrated from 3 milligrams (mg)/day for the first 4 weeks to 7 milligrams (mg)/day for the second 4 weeks. Participants will complete 7 additional clinic visits (weekly during the first 4 weeks of the treatment period and biweekly during the second 4 weeks). At each visit, participants will also engage in a computerized behavioral intervention. At screening and again at the Week 6 visit, participants will complete an alcohol cue reactivity task. At the Week 1 visit, before ingesting the first dose of study medication, and again at the Week 8 visit, participants will complete a functional MRI session.

02

Conditions studied

  • Alcohol Use Disorder

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03

In context

Alcoholism

1,606 studies on the registry are indexed under Alcoholism; 329 are open to participants now.

This study's enrollment of 50 is below the median of 87 across 1,371 interventional studies indexed under Alcoholism.

Browse Alcoholism studies →

Lead sponsor

University of Colorado, Denver is the lead sponsor of 1,499 studies on the registry; 315 are open to participants now.

Of its 139 completed or terminated interventional studies of FDA-regulated products, 89 (64%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
21 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Age 21 or older.
  2. Meets Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5) criteria for current AUD of at least moderate severity, as assessed by the Mini International Neuropsychiatric Interview (MINI).
  3. Seeking pharmacological treatment for AUD and wants to stop or cut down on drinking.
  4. Has a body mass index (BMI) of at least 25 kg/m2.
  5. Able to read and understand questionnaires and informed consent.
  6. Lives within 50 miles of the study site.

Please contact clinical site for additional inclusion criteria.

Exclusion criteria

Exclusion Criteria:

  1. Current DSM-5 diagnosis of any other substance use disorder of moderate or greater severity, except for Nicotine Use Disorder, as assessed by MINI.
  2. Urine drug screen at screening positive for any substance except cannabis.
  3. Current DSM-5 bipolar disorder, major depressive episode, or panic disorder, as assessed by MINI.
  4. Current or lifetime eating disorder (anorexia, bulimia, or binge eating disorder) or psychotic disorder, as assessed by MINI.
  5. Current suicidal ideation or homicidal ideation.
  6. Current use of other psychotropic medications except antidepressants (for which dose must be stable for at least the past 2 months).
  7. Current or past-month use of AUD pharmacotherapy, including (e.g., oral naltrexone, acamprosate, or disulfiram) or current or past 60-day use of injectable naltrexone.
  8. Current psychotherapy in which the primary focus is AUD. Attendance at Alcoholics Anonymous (AA) meetings is not exclusionary.
  9. Current or past-month use of weight control medications.
  10. Current or past-month use of metformin for any indication.
  11. Any prior use of semaglutide or other GLP-1 agonists.
  12. History of severe alcohol withdrawal (e.g., seizure, delirium tremens), as evidenced by self- report and assessment with Clinical Institute Withdrawal Assessment for Alcohol-Revised (CIWA-Ar).
  13. Current or lifetime Type 1 or Type 2 diabetes diagnosis, or HbA1c >6.5%.
  14. Current or lifetime kidney disease or creatinine clearance \<80 mL/min for participants \<=55 years of age (\<65 mL/min for those >55).
  15. Personal history of gastrointestinal disease (e.g., gastroparesis) or pancreatitis.
  16. Personal or family history of medullary thyroid carcinoma and/or multiple endocrine neoplasia syndrome type 2
  17. Current or past hepatocellular disease, as indicated by verbal report or elevations of serum amylase, alanine aminotransferase (ALT) or aspartate aminotransferase (AST) greater than 3 times the upper limit of the normal range at screening.
  18. Uncontrolled hypertension (systolic BP >160 mmHg or diastolic >100 mmHg).
  19. Biological females of childbearing potential who are pregnant (by plasma HCG), nursing, or who are not using a reliable form of contraception.
  20. Lack of a stable living situation.
  21. (If participating in MRI sessions) Contraindications to MRI scanning, ferrous metal in the body including intracranial, intraorbital, or intraspinal metal, pacemakers, cochlear implants, other non-MRI-compatible devices, or other devices that could compromise the quality of the MRI images such as a permanent top retainer or braces.
  22. (If participating in MRI sessions) Severe claustrophobia or morbid obesity that preclude placement in the MRI scanner.
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Factorial assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
50 participants (actual)

Study arms

  • Placebo comparator
    Placebo

    Participants in this Arm will take a medically inert placebo. To ensure pill equivalence between groups, tablets will be packaged in the same capsule; thus, each participant will take one capsule per day. Participants will be instructed to ingest the capsule orally each morning.

    Drug: Placebo

  • Active comparator
    Semaglutide 3 milligrams and 7 milligrams

    Participants in this Arm will study medication for a total of 8 weeks - on semaglutide 3 milligrams per day for 4 weeks, then 7 milligrams per day for 4 weeks. To ensure pill equivalence between groups, tablets will be packaged in the same capsule; thus, each participant will take one capsule per day. Participants will be instructed to ingest the capsule orally each morning.

    Drug: Semaglutide 3 MG [Rybelsus] · Drug: Semaglutide 7 MG [Rybelsus]

Interventions

  • DrugSemaglutide 3 MG [Rybelsus]

    Semaglutide 3 mg will be taken for the first 4 weeks of the 8-week trial.

    Also known as: Rybelsus 3 mg

  • DrugSemaglutide 7 MG [Rybelsus]

    Semaglutide 7 mg will be taken for the second 4 weeks of the 8-week trial.

    Also known as: Rybelsus 7 mg

  • DrugPlacebo

    A medically inert placebo medication will be taken for 8 weeks.

06

What researchers measure

Primary outcomes

  1. Change in Cue Craving Visual Analog Score

    The primary efficacy endpoint will be the magnitude of change between screening and Week 6 in the cue-craving VAS score on the first VAS item ("How strong is your craving to drink alcohol?") administered after the alcohol cue presentation. Scores range from 0 (none) to 20 (extremely strong). Higher scores indicate a higher level of craving.

    Time frame: 7 weeks - change between screening and Week 6 visit

Secondary outcomes

  1. Number of drinks per day

    The number of standard alcoholic drinks participants consume per day during the last 4 weeks of the treatment period (Week 5-8), as reported on the Timeline Follow-Back Interview.

    Time frame: 4 weeks

  2. Percentage of heavy drinking days

    The percentage of heavy drinking days during the last 4 weeks of the treatment period (Week 5-8), as reported on the Timeline Follow-Back Interview.

    Time frame: 4 weeks

  3. Change in alcohol cue-elicited brain activation

    Change in fMRI BOLD activation to alcohol vs. neutral beverage visual cues between baseline and Week 8.

    Time frame: 8 weeks

07

Study locations

1 site
  • University of Colorado Anschutz Medical Campus
    Aurora, Colorado 80045, United States
08

References and documents

Individual participant data

Plan to share: Yes — De-identified, individual-level phenotypic data will be submitted to the NIAAA Data Archive (NDA) portal once it is available. Informed consent that allows for broad sharing of each subject\&#39;s de-identified data will be obtained and personally identifiable information that allows the creation of an NDA Global Unique Identifier will be collected. The PI and study staff will work with NDA staff to specify and/or define measures to be collected, and data will be submitted in accordance with NDA submission due dates.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 26, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05892432
Lead sponsor
University of Colorado, Denver
Collaborators
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
Responsible party
Sponsor
First posted
Jun 7, 2023
Start date
Jan 11, 2024
Primary completion
Nov 4, 2025
Completion
Nov 15, 2025
Last update
Dec 26, 2025

Study contacts

Joseph P Schacht, PhD
principal investigator · University of Colorado, Denver

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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