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CompletedNCT00218127Updated Jan 12, 2017

Treatment of Opioid/Heroin Dependence: Comparison of Three Medication Dosing Regimens

A Phase 2 interventional study of Levoacetyl Methadol and Levoacetyl Methadol in Heroin Dependence and Opioid-Related Disorders, sponsored by National Institute on Drug Abuse (NIDA). Completed at 1 site in United States. Open to participants aged 25 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-01-12.

Sponsored by National Institute on Drug Abuse (NIDA) · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
142
Allocation
Randomized
Ages
25 Years to 55 Years
Sex
All
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Study summary

Heroin dependence remains a major addiction problem in the United States. The purpose of this study is to determine the effectiveness of levoacetyl methadol (ORLAAM) in treating heroin dependent individuals.

Read the detailed description

Heroin is a highly addictive drug, and its abuse has both medical and social consequences. ORLAAM is approved to treat both opiate and narcotic dependence. The purpose of this study is to determine the efficacy of ORLAAM in treating heroin dependent individuals. In addition, this study will determine the most effective dosing regimen of ORLAAM.

This study will last 20 weeks. Participants will be randomly assigned to receive one of three dosing conditions: 1) standard fixed dose, 2) dose-by-weight, and 3) dose effect. The dose effect condition will include a dose of ORLAAM dependent on opiate use and withdrawal symptoms associated with opiate use; doses may be adjusted throughout the study. All participants will receive cognitive behavioral therapy throughout the study.

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Conditions studied

  • Heroin Dependence
  • Opioid-Related Disorders

Keywords

  • Heroin dependence
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In context

Heroin Dependence

90 studies on the registry are indexed under Heroin Dependence; 1 is open to participants now.

This study's enrollment of 142 is above the median of 87 across 57 interventional studies indexed under Heroin Dependence.

Browse Heroin Dependence studies →

Lead sponsor

National Institute on Drug Abuse (NIDA) is the lead sponsor of 393 studies on the registry; 19 are open to participants now.

Of its 14 completed or terminated interventional studies of FDA-regulated products, 6 (43%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
25 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Current opiate dependence
  • Provides acceptable proof of identity
  • History of 5 or more years of regular heroin use or dependence
  • Reads and writes English

Exclusion criteria

Exclusion Criteria:

  • Significant suicidal or homicidal ideation, intent, or plan
  • Current AXIS I psychotic, depressive, or anxiety disorder
  • Meets criteria for dependence on any drug other than nicotine
  • Impending legal complications or incarceration
  • On parole or probation that requires reports of drug use or research data
  • Currently receiving treatment for opiate dependence
  • Currently participating in a 12-step substance detoxification program
  • Medical condition that contraindicates administration of ORLAAM
  • Plans to leave Houston, Texas within the year following study entry
  • Pregnant or breastfeeding
  • History of heart problems, including heart arrhythmias
  • Requires psychotropic medications (e.g., antidepressants, antipsychotics, anxiolytics)
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

DSM diagnostic criteria

The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.

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Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Single group
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
142 participants (actual)

Study arms

  • Experimental
    1

    LAAM WtDosing up to 1.0 mg/kg Stable 1.0 mg/kg/day for 20 weeks

    Drug: Levoacetyl Methadol

  • Experimental
    2

    LAAM MaxEffect to 48 mg Adjust to effect (+/-)

    Drug: Levoacetyl Methadol

  • Experimental
    3

    LAAM Fixed Dose up to 48 mg 48 mg

    Drug: Levoacetyl Methadol

Interventions

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What researchers measure

Primary outcomes

  1. drug use

    Time frame: herion use over 20 week period

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Study locations

1 site
  • Department of Psychatiry, Mental Services
    Houston, Texas 77030, United States
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 12, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00218127
First posted
Sep 22, 2005
Start date
Nov 2001
Primary completion
Jul 2005
Completion
Jul 2005
Last update
Jan 12, 2017

Study contacts

John Grabowski, PhD
principal investigator · The University of Texas Health Science Center, Houston

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2016. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Methadyl Acetate

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