Weight-Loss drug tirzepatide takes on alcohol addiction in new trial
NCT ID NCT06994338
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether a weekly injection of tirzepatide, a drug used for diabetes and weight loss, can help adults with alcohol use disorder and overweight or obesity reduce heavy drinking. About 42 participants will receive either the drug or a placebo for 8 weeks. The main goal is to see if the drug lowers the number of heavy drinking days.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
-
About 42 people
The number the study aims to enrol. It can still change while the study runs.
- Started
-
Oct 2025
- Expected to finish
-
Aug 2026
An estimate. End dates often move.
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
21 to 65 years
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Meeting past-year DSM-5 criteria for AUD with at least moderate severity (≥ 4 symptoms) 2. Average daily consumption of ≥40g (women) / ≥ 60 g (men) per day in the 28 days prior to baseline 3. Body mass index ≥ 27kg/m2 4. Willingness to attend weekly medication visits and complete all study procedures 5. Ability to read and communicate in English 6. Age 21-65 7. Treatment-seeking (i.e., currently seeking assistance to reduce or stop drinking) 8. Stable housing status Exclusion Criteria: 1. Meeting past-year DSM-5 criteria for another substance use disorder (except tobacco use disorder or mild cannabis use disorder) 2. Recent (past 30 day) self-report of illicit drug use (excluding cannabis) or non-prescribed opioids; or positive urine screen for illicit drugs. A positive screen for opioids will be allowed if the participant is prescribed an opioid replacement therapy medication and can provide documentation. 3. History of significant alcohol withdrawal, as indicated by history of seizure, delirium tremens; history of hospitalization for withdrawal-related symptoms; a CIWA score \>9 at assessment; or a baseline score 4+ on the Prediction of Alcohol Withdrawal Severity (PAWS) scale. 4. Recent (past 3 months) engagement in behavioral or pharmacological alcohol use treatment or currently mandated to receive treatment 5. History of chronic or acute pancreatitis 6. History of Type 1 or Type 2 diabetes, or diabetes-related conditions (e.g., diabetic retinopathy), or baseline HbA1C ≥ 6.5% 7. History of suicide attempt or report of current (past 2 weeks) active suicidal ideation 8. Lifetime diagnosis of severe mental illness (e.g., psychosis or bipolar disorder) 9. Evidence of a significant anxiety or depressive disorder that is currently interfering with daily functioning, based on GAD-7 and PHQ-9 scores and physician judgement. (Anxiety or depression are not exclusionary if symptoms are stable/non-interfering with daily activities, or if the participant is receiving treatment, i.e., psychiatric medications have not changed for at least 3 months prior to baseline) 10. Treatment for eating disorder in the past 12 months 11. Report of significant medical, neurological, or psychiatric illness that would preclude safe or full study participation based on the judgement of the study physicians 12. History of known liver disease 13. Elevated serum lipase, amylase, bilirubin, or ALP, ALT, or AST (\>3x upper limit of normal range) 14. History of malignant neoplasms in the last 5 years, except for non-melanoma skin cancer 15. Inability to attend weekly clinic visits as scheduled (i.e., based on travel or work schedule) 16. Weight loss \> 5% in the 30 days prior to screening 17. Currently enrolled in another clinical trial involving an investigational product 18. Current contact or co-habitation with a current or former participant in the present trial 19. Current co-habitation with a person taking GLP-1RA therapy 20. Planned surgical procedures requiring anesthesia within 90 days post-entry into the study 21. History of treatment with tirzepatide or a GLP-1RA within 6 months of screening 22. Treatment with any weight loss medications (e.g., orlistat, bupropion-naltrexone) or medications known to reduce alcohol consumption (e.g., naltrexone, topiramate, acamprosate, varenicline) in the past 3 months 23. Personal or family history of medullary thyroid carcinoma or multiple endocrine neoplasia (MEN) type I or type II 24. Estimated glomerular filtration rate (eGFR) \<60 (indicated impaired kidney function) 25. Use of prescribed or non-prescribed medications that would preclude safe use of tirzepatide in the judgement of the study physicians 26. Known bone, muscle, or wasting conditions (e.g., osteoporosis, sarcopenia) aa. Presence of significant or uncontrolled GI conditions (e.g., GERD) that would interfere with treatment in the judgement of study physicians bb. Any other significant disease, disorder, or finding that in the opinion of the investigator(s) may increase the risk to the volunteer because of participation in the study, affect the ability of the volunteer to participate in the study or impair interpretation of the study data. cc. Currently pregnant or nursing, or inability to adhere to a reliable method of birth control (applies to female participants of childbearing age) dd. Uncontrolled hypertension at baseline, as indicated by an average blood pressure reading of \>180/110 after three successive readings ee. History of heart attack or stroke in the 6 months prior to screening ff. A pre-treatment reduction in alcohol consumption to \< 40g/day (males) or \<20g/day (females) in the interval between baseline screening and randomization
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Alcohol are added.
By submitting, you agree to our Terms of use
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
-
The places running it
1 site. The list below names each one and where it is.
-
The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
-
A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
-
Keck School of Medicine, University of Southern California
RECRUITINGLos Angeles, California, 90032, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Investigating the Mu:Kappa opioid receptor imbalance in alcohol use disorder
- Identification of cellular and molecular mechanisms involved in the pathophysiology of alcohol use disorder by examination of cerebrospinal fluid
- A randomized, double blind, placebo controlled phase i study to evaluate the safety, tolerability, pharmacokinetic and pharmacodynamic characteristics of IBI3046 in chinese participants with overweight or obesity
- Intravenous acetate as an adjunctive treatment for alcohol withdrawal in hospitalized patients
- Can a gentle brain current quiet alcohol cravings?
- Could a social media post curb drinking and cut breast cancer risk?