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Phase 3 Completed N=306 Randomized Quadruple-blind Treatment

Addiction Treatment in Russia: Oral vs. Naltrexone Implant

Heroin Dependence · Opioid-Related Disorders
Source: ClinicalTrials.gov NCT00218426 ↗
Enrolled (actual)
306
Serious AEs
0.3%
Results posted
Feb 2019
Primary outcomePrimary: Retention Without Relapse to Heroin Addiction (Measured at Month 6) — 54; 16; 11 Participants
◆ Published Evidence
Established
91citations · ~9 / year
Anhedonia, depression, anxiety, and craving in opiate dependent patients stabilized on oral naltrexone or an extended release naltrexone implant.
The American journal of drug and alcohol abuse · 2016 · Likely link

Summary

Heroin addiction is a growing problem in Russia; individuals who enter heroin addiction treatment often relapse. Therefore, effective heroin addiction treatments are necessary to prevent relapse. The purpose of this study is to compare oral naltrexone with a naltrexone implant that provides opioid blockade for two months in preventing relapse to heroin addiction in St. Petersburg, Russia.

Linked Publications (2)

  • Anhedonia, depression, anxiety, and craving in opiate dependent patients stabilized on oral naltrexone or an extended release naltrexone implant.
    The American journal of drug and alcohol abuse · 2016 · 91 citations · Likely link
  • Sustained-release naltrexone for opioid dependence.
    The Cochrane database of systematic reviews · 2025 · 5 citations · Open access · Likely link

Outcome Measures

OutcomeResultp-value
PRIMARY
Retention Without Relapse to Heroin Addiction (Measured at Month 6)
54; 16; 11
SECONDARY
Number of Subjects Who Dropped Out of Treatment
54; 16; 11
SECONDARY
Positive Opioid Urine Test
.427; .636; .341
SECONDARY
Use of Alcohol
10.2; 9.0; 9.6
SECONDARY
Composite Score of Psychiatric Problems
0.19; 0.15; 0.18
SECONDARY
HIV Risk (Baseline)
8.1; 8.0; 8.7
SECONDARY
Global Assessment Form (GAF)
62.8; 64.7; 62.5
SECONDARY
Amphetamine Drug Use
6; 12; 18
SECONDARY
Cocaine Drug Use
0; 0; 0
SECONDARY
Marijuana Drug Use
22; 35; 25
SECONDARY
Benzodiazepine Drug Use
10; 15; 9

Eligibility Criteria

Inclusion Criteria

  • Current opioid dependence
  • Recently completed opioid detoxification

Exclusion Criteria

  • Serious medical or psychiatric condition requiring immediate hospitalization or that would make participation in the study hazardous
  • Planning to leave the study area within the 12 months following study entry
  • Imminent incarceration
  • Pregnancy
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT00218426) and the linked publication. Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.

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