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Completed Phase 2Phase 3 Interventional Results available

Memantine as a Supplement to Naltrexone in Treating Heroin Dependence

ClinicalTrials.gov ID: NCT00476242

Public ClinicalTrials.gov record NCT00476242. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 8, 2026, 9:12 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Placebo Controlled Study of Memantine as an Adjunct to Naltrexone in the Treatment of Opioid Dependence

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Prospective participants will undergo a screening process at the clinic to determine eligibility. After screening, eligible patients will complete an 8-day inpatient detoxification, followed by a 12-week outpatient phase. Patients will be randomly assigned to one of two conditions (1) Naltrexone + Placebo; (2) Naltrexone + Memantine 20 mg bid. Long-acting, injectable form of naltrexone (Vivitrol) will be administered once per month (the total of three injections) while memantine or placebo will be taken daily. In addition, patients will receive twice weekly psychosocial intervention that will include motivational interviewing and cognitive-behavioral relapse prevention. The outpatient treatment will also consist of 3 weekly visits to the clinic in which patients will receive counseling to help maintain abstinence and improve compliance with study medication.

Study identification

NCT ID
NCT00476242
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2, Phase 3
Enrollment
82 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years to 60 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
May 31, 2008
Primary completion
Jul 31, 2011
Completion
Jul 31, 2011
Last update posted
Jul 16, 2018

2008 – 2011

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
STARS New York New York 10032

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00476242, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jul 16, 2018 · Synced Sep 8, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00476242 live on ClinicalTrials.gov.

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