Influence of Mavoglurant on Alcohol Craving and Drinking in Heavy Drinkers

NCT ID: NCT06136195

Last Updated: 2025-08-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

63 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-07-01

Study Completion Date

2026-05-31

Brief Summary

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The purpose of this research study is to find out about the effects of a drug called mavoglurant on alcohol consumption.

Detailed Description

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This project will use a double-blind, placebo-controlled, within-subject design to examine mavoglurant effects on alcohol craving, drinking, and subjective responses. Non-treatment seeking, heavy drinkers with Alcohol Use Disorder (AUD) will undergo 2 lab sessions, which include a Cue Exposure (craving) Paradigm (CEP) and an Alcohol Drinking Paradigm (ADP), as well as 1-week and 1-month follow up appointments. Prior to the first lab session, participants will be randomized to receive either 200 mg of mavoglurant or placebo. For the second lab session, participants will receive the other condition, mavoglurant or placebo, that they did not receive in the first lab session. Each session will be separated by at least a 5-8 day washout period to allow for complete washout of mavoglurant. This is followed by 1-week and 1-month follow up appointments.

Conditions

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Alcohol Consumption Heavy Drinker Alcohol Use Disorder (AUD)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

Study Groups

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Mavoglurant 1st / Placebo 2nd

Participants randomized to the Mavoglurant 1st Arm will take a single dose of 200mg mavoglurant in the morning, prior to their 1st lab session. Then after a 5-8 day washout period, participants will have their 2nd lab session where they will take a matching placebo in the morning prior to the 2nd lab session.

Group Type EXPERIMENTAL

Mavoglurant

Intervention Type DRUG

The 200mg mavoglurant will be administered in the form of two 100mg oral tablets. Placebo will be administered with matching tablets.

Placebo 1st / Mavoglurant 2nd

Participants randomized to the Placebo 1st Arm will take a matching placebo in the morning, prior to their 1st lab session. Then after a 5-8 day washout period, participants will have their 2nd lab session where they will take a single dose of 200mg mavoglurant in the morning, prior to their 2nd lab session.

Group Type EXPERIMENTAL

Mavoglurant

Intervention Type DRUG

The 200mg mavoglurant will be administered in the form of two 100mg oral tablets. Placebo will be administered with matching tablets.

Interventions

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Mavoglurant

The 200mg mavoglurant will be administered in the form of two 100mg oral tablets. Placebo will be administered with matching tablets.

Intervention Type DRUG

Other Intervention Names

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STP7

Eligibility Criteria

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Inclusion Criteria

1. Ages 21-50 (The lower limit is to avoid offering alcohol to individuals below the drinking age of 21. The upper age is determined by experience recruiting for our prior studies).
2. Ability to read English at 6th grade level or higher.
3. Meet DSM-V criteria for moderate or severe Alcohol Use Disorder (AUD).
4. Average weekly alcohol consumption of 30-70 standard drinks for men and 20-65 drinks for women. The lower limits are consistent with the lower sex-specific cut-offs defining high-risk drinking based on World Health Organization Risk Levels (WHO, 2000); the upper limits are designed to avoid recruiting participants whose drinking is likely to exceed the number of drinks available in the Alcohol Drinking Paradigm (ADP).

Exclusion Criteria

1. Individuals who are seeking alcohol treatment or have been in alcohol treatment within the past 6 months.
2. Meet current Diagnostic and Statistical Manual v.5 (DSM-V) criteria for substance use disorder, except for tobacco use disorder or mild cannabis use disorder.
3. Positive urine drug screens at more than 1 baseline appointment for opiates, cocaine, benzodiazepines and barbiturates.
4. Psychotic or other severe psychiatric disorders as determined by clinical evaluation (Structured Clinical Interview for DSM-V; SCID). Note that if a subject endorses any harm/risk behaviors (e.g. suicidal/homicidal risk) a licensed clinician will be consulted immediately.
5. Regular use of psychoactive drugs, except for individuals on a stable dose of an antidepressant for at least 2 months.
6. Medical conditions that would contraindicate the consumption of alcohol or use of mavoglurant.
7. Clinically significant abnormalities in screening laboratories, including aspartate aminotransferase (AST) \>3 times upper limit of normal (ULN); alanine aminotransferase (ALT) \> 3 times ULN; total bilirubin \>1.5 times ULN; serum creatinine \>2.0 times ULN.
8. Neurological trauma or disease, delirium or hallucinations, or clinically significant or unstable medical conditions, including uncontrolled hypertension or diabetes, or significant cardiac, pulmonary, renal, hepatic, endocrine, or other systemic diseases, which in the opinion of the study physician and Principal Investigator, may put the patient at risk because of participation in the study.
9. Clinical Institute Withdrawal Assessment for Alcohol (CIWA-Ar) scores of 8 or greater or a history of significant repeated alcohol withdrawals to reduce the likelihood of withdrawal symptomatology if subjects reduce their drinking.
10. Women who are pregnant or nursing.
11. Participants who refuse to use a reliable method of birth control.
12. Subjects who report disliking spirits will be excluded because hard liquor will be provided during the ADP.
13. Subjects who have taken any investigational drug within 4 weeks of the anticipated date of the first study dose.
14. Individuals who report heavy drinking days in the 2 days prior to their intake appointment but have a negative ethyl glucuronide (EtG) test to rule out subjects who are misrepresenting their drinking history.
15. Subjects who have donated blood within the past 6 weeks.
Minimum Eligible Age

21 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Institute on Alcohol Abuse and Alcoholism (NIAAA)

NIH

Sponsor Role collaborator

Yale University

OTHER

Sponsor Role lead

Responsible Party

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Suchitra Krishnan-Sarin

Professor of Psychiatry

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Suchitra Krishnan, PhD

Role: PRINCIPAL_INVESTIGATOR

Yale University

Locations

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Connecticut Mental Health Center (SAC and SATU)

New Haven, Connecticut, United States

Site Status RECRUITING

Yale New Haven Hospital

New Haven, Connecticut, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Suchitra Krishnan, PhD

Role: CONTACT

203-974-7595

Thomas Liss

Role: CONTACT

(203)974-7555

Facility Contacts

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Thomas B Liss, BS

Role: primary

203 974 5767

Nicolas Franco, BA

Role: backup

203 974-5759

Suchitra Krishnan-Sarin, PhD

Role: primary

(203) 974-7595

Thomas Liss

Role: backup

(203)974-7555

Other Identifiers

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2P50AA012870-21

Identifier Type: NIH

Identifier Source: secondary_id

View Link

2000029675

Identifier Type: -

Identifier Source: org_study_id

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