Pregabalin Trial for the Treatment of Alcohol Use Disorder

Alcohol Use Disorder Clinical Trial

— GABI2  

Official title:

A Double-blind, Placebo-Controlled Trial of Pregabalin for the Treatment of Alcohol Use Disorder

Clinical Trial Details — Status: Suspended

Administrative data

• NCT number: NCT04322305
• Other study ID #: 7977
• Secondary ID: R21AA028371
• Status: Suspended
• Phase: Phase 2
• Start date: January 11, 2021
• Est. completion date: September 30, 2024

Study information

• Verified date: September 2023
• Source: New York State Psychiatric Institute
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

In a 10-week randomized double-blind placebo-controlled outpatient pilot trial the efficacy of pregabalin in the treatment of alcohol dependence will be studied in 50 treatment-seeking outpatients. Participants will report drinking a minimum of 5 standard drinks for men or 4 standard drinks for women at least 4 days per week over the past 28 days.

Description:

In a 10-week double-blind placebo controlled outpatient clinical trial, the safety and efficacy ofpregabalin will be tested in 50 outpatients with Alcohol Use Disorder.Participants will be randomly allocated (1:1) to receive pregabalin or an identical-appearing, inert placebo. All study medication (placebo and pregabalin) will be over-capsulated with riboflavin to assess compliance. Pregabalin will be administered in 75 mg and 100 capsules; placebo capsules will appear identical to the pregabalin capsules. Participants in both study arms will receive the same number of capsules. Pregabalin will be titrated over a 3-week period to the FDA maximum (600 mg per day) or the maximum tolerated dose.

Study visits will occur daily for the first 4 days of the study period, then approximately every other day for the remainder of week 1, for a total of 5 study visits (study days 1,2,3,4, and 5 or 7). During the second week, study visits will continue every other day for a total of 3 study visits (study days 8,10, and 12). During the remainder of the 8-week medication study period, study visits will occur twice weekly. There will be two visits during a post-study taper week (week 9) and a follow-up visit during week 10. One visit per week will be with the research psychiatrist. All participants will have a weekly supportive behavioral treatment session with the research psychiatrist using a manual designed for pharmacotherapy trials in subjects with alcohol use disorders

Recruitment information / eligibility

• Status: Suspended
• Enrollment: 50
• Est. completion date: September 30, 2024
• Est. primary completion date: July 31, 2024
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years to 65 Years

Eligibility

Inclusion Criteria:

• Meets DSM-5 criteria for current alcohol use disorder

• Reports drinking a minimum of 5 standard drinks for men or 4 standard drinks for women at least 4 days per week over the past 28 days

• Between the ages of 18 and 65

• Able to provide informed consent and comply with study procedures

Exclusion Criteria:

• Subjects with any current psychiatric disorder as defined by DSM-5, other than Alcohol use disorder, that in the investigator's judgment likely requiring ongoing dosage adjustments of their current medications or requiring changes in their medication and/or might require intervention over the course of the study, including schizophrenia, schizoaffective disorder, psychotic disorders other than transient psychosis due to drug abuse, bipolar disorder, and current suicidality with plan and intent. Individuals who are currently stable on a psychotropic medication for at least 3 months may be included if in the investigator's opinion the psychotropic medication is compatible with the study medication (pregabalin). The medications being allowed are commonly used antidepressants, including the SSRIs (e.g., fluoxetine, paroxetine, fluvoxamine, sertraline, citalopram, escitalopram), SNRI's (e.g., venlafaxine, desvenlafaxine, duloxetine), and bupropion.

• Evidence of moderate-to-severe alcohol withdrawal Clinical Institute Withdrawal Assessment (revised version) (CIWA-Ar score =10)

• History of alcohol withdrawal seizures or alcohol withdrawal delirium

• History of allergic reaction to candidate medication (pregabalin)

• Pregnancy, lactation, or failure in female patients to use adequate contraceptive methods

• Unstable physical disorders which might make participation hazardous

• Subjects who have a current DSM-5 diagnosis of moderate or severe substance use disorder, with the exception of alcohol, nicotine and caffeine dependence. A diagnosis of a mild substance use disorder will not be exclusionary, as long as the current primary substance use disorder is alcohol dependence.

• Are legally mandated to participate in alcohol use disorder treatment program

Related Conditions & MeSH terms

• Alcohol Drinking
• Alcohol Use Disorder
• Alcoholism

Intervention

Drug:
• Pregabalin
Pregabalin will be provided in 75 and 100 mg capsules twice daily for a maximum dose of 600 mg/day or the maximum tolerated dose over the 8 week medication phase and followed by a one week taper.

Other:
• Placebo
Placebo capsules will be provided twice daily over 8 weeks and one week taper..

Locations

Country	Name	City	State
United States	Nyspi-Stars	New York	New York

Sponsors (2)

Lead Sponsor	Collaborator
New York State Psychiatric Institute	National Institute on Alcohol Abuse and Alcoholism (NIAAA)

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Change in proportion of heavy drinking days	Change in heavy drinking days as quantified by the proportion of heavy drinking days (defined as any day where the number of standard drinks was at least 5 for men and at least 4 for women) per week as measured by the timeline follow-back (TLFB) method.	measured weekly over the 8 weeks of the medication phase of the trial or length of each individual's participation