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WithdrawnNCT00000326Updated May 4, 2017

Buprenorphine/Naloxone Treatment for Opioid Dependence-Experiment 1 - 1

A Phase 2 interventional study of Heroin Dependence in Heroin Dependence and Opioid-Related Disorders, sponsored by University of Colorado, Denver. Withdrawn at 1 site in United States. Open to participants aged 18 Years to 64 Years. Per ClinicalTrials.gov, last updated 2017-05-04.

Sponsored by University of Colorado, Denver · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
0
Ages
18 Years to 64 Years
Sex
All
01

Study summary

The purpose of this study is to assess the clinical efficacy of the buprenorphine/naloxone combination tablet for alternate-day dosing and determine whether multiples of the daily dose are necessary to maintain an effective alternate day dosing regimen.

Read the detailed description

Alternate-day dosing with the 8mg buprenorphine-naloxone tablet is as safe and effective as daily dosing. Outcomes are improved when the total weekly dose provided during alternate-day dosing is equal to that given during daily dosing.

02

Conditions studied

  • Heroin Dependence
  • Opioid-Related Disorders

Keywords

  • Heroin Dependence
03

In context

Heroin Dependence

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

Browse Heroin Dependence studies →

Lead sponsor

University of Colorado, Denver is the lead sponsor of 1,543 studies on the registry; 317 are open to participants now.

Of its 147 completed or terminated interventional studies of FDA-regulated products, 92 (63%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 64 Years
Sexes eligible
All
Accepts healthy volunteers
No

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

Individuals must be currently opioid dependent and meet FDA criteria for narcotic maintenance treatment. Co-morbid substance abuse or dependence disorders may also be present. Individuals must be healthy despite drug dependency.

Exclusion criteria

Exclusion Criteria:

Individuals with evidence of an active (DSM-IV) Axis I psychiatric disorder (e.g. psychosis, manic-depressive illness, organic psychiatric disorders), significant medical illness (e.g. liver or cardiovascular disease) or pregnant female subjects are excluded from study participation.

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
Intervention model
Crossover assignment
Masking
Double
Enrollment
0 participants (actual)

Interventions

  • DrugHeroin Dependence
06

What researchers measure

Primary outcomes

  1. Drug use

  2. Retention

  3. Subjective dose estimate

  4. Observed withdrawal rating

  5. Opioid agonist rating

  6. Opioid antagonist rating

  7. Pupil diameter

  8. Compliance

  9. Analog rating scale for drug effects

  10. Drug effect characteristics

  11. Dose order estimate-nurse

  12. Dose order estimate-client

07

Study locations

1 site
  • University of Colorado Health Sciences Center
    Denver, Colorado 80206, United States
08

References and documents

Publications

  • (presented at ACNP 1997. Kamien, J.B., Mikulich, S.K., and Amass, L., Efficacy of the buprenorphine/naloxone tablet for daily vs. alternate-day opioid dependence treatment. Presented to the 1998 Meeting of the College on Problems of Drug Dependence.. Presented at ACNP 1997 and CPDD 1998.
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 4, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00000326
Responsible party
Sponsor
First posted
Sep 21, 1999
Start date
Apr 1997
Primary completion
Aug 1997
Completion
Aug 1997
Last update
May 4, 2017

Study contacts

Leslie Amass, Ph.D.
principal investigator · University of Colorado, Denver
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in May 2017. You cannot join it, but the record below documents what was studied.

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