NCT00006203

Brief Summary

This 5-week study will examine the effects of naltrexone on alcohol craving, drinking rates, and reaction to drinking-related triggers, or cues, in participants' everyday environment and in laboratory sessions. Participants will monitor and record their daily desires to drink, environmental circumstances in which urges occur, and drinking behavior using a palm top computer. Participants will receive naltrexone or a placebo. One week after receiving medication, all participants will be asked to respond to alcohol-related cues that may or may not arouse the desire to drink.

Trial Health

80
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
180

participants targeted

Target at P50-P75 for phase_4

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 11, 2000

Completed
1 day until next milestone

First Posted

Study publicly available on registry

September 12, 2000

Completed
4.6 years until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2005

Completed
Last Updated

June 13, 2025

Status Verified

October 1, 2006

First QC Date

September 11, 2000

Last Update Submit

June 11, 2025

Conditions

Study Arms (2)

Naltrexone Arm

EXPERIMENTAL

Three weeks of daily 50mg Naltrexone

Drug: Naltrexone 50 Mg

Placebo Arm

PLACEBO COMPARATOR

Three weeks of daily placebo (sugar)

Drug: Placebo

Interventions

Daily 50 mg for 3 weeks

Naltrexone Arm

Daily doses of placebo for 3 weeks

Placebo Arm

Eligibility Criteria

Age21 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Drink at least 4 days per week with 2 heavy drinking days (more than 6 standard drinks for men, more than 5 drinks for women) per week on average during the month prior to the study.

You may not qualify if:

  • Current interest in treatment or a history of treatment for alcohol problems.
  • History of liver disease or current liver function tests greater than five times normal.
  • Opiate abuse or dependence, any opiate use two weeks before the study or a urine test screen that is positive for opiates.
  • Females, who are pregnant, nursing, or not using reliable birth control method.
  • Daily use of acetaminophen.
  • Living with someone who participated in this study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Center for Alcohol and Addiction Studies, Brown University

Providence, Rhode Island, 02919, United States

Location

MeSH Terms

Conditions

Alcoholism

Interventions

Naltrexone

Condition Hierarchy (Ancestors)

Alcohol-Related DisordersSubstance-Related DisordersChemically-Induced DisordersMental Disorders

Intervention Hierarchy (Ancestors)

NaloxoneMorphinansOpiate AlkaloidsAlkaloidsHeterocyclic CompoundsHeterocyclic Compounds, Bridged-RingHeterocyclic Compounds, 4 or More RingsHeterocyclic Compounds, Fused-RingPhenanthrenesPolycyclic Aromatic HydrocarbonsPolycyclic Compounds

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: After a one-week placebo lead-in period, drinkers were randomized to 3 weeks of daily naltrexone or placebo.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
professor

Study Record Dates

First Submitted

September 11, 2000

First Posted

September 12, 2000

Study Completion

May 1, 2005

Last Updated

June 13, 2025

Record last verified: 2006-10

Locations