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A Placebo-Controlled Study of a Combination of Metyrapone and Oxazepam in Cocaine Addiction

A Double-Blind, Randomized, Placebo-Controlled Study of the Safety and Efficacy of Two Dose Combinations of Metyrapone and Oxazepam in the Treatment of Cocaine Addiction

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00567814
Enrollment
45
Registered
2007-12-05
Start date
2007-12-31
Completion date
2008-11-30
Last updated
2008-12-31

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cocaine Dependence, Cocaine Addiction

Keywords

Cocaine, Dependence, Addiction, Cortisol, GABA

Brief summary

Subjects will be randomly assigned to receive either one of the two potential dose combinations of the study medications or placebo over 6 weeks. The study will include twice weekly visits to the research clinic for laboratory studies, safety assessments and urine drug screens. Subjects will also be questioned regarding drug craving and mood symptoms.

Interventions

Twice daily

Twice Daily

DRUGPlacebo

Twice daily

Sponsors

Embera NeuroTherapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
No

Inclusion criteria

* Male or female, 18 - 50 years of age * Requests treatment for cocaine addiction * Meets the DSM-IV criteria for cocaine dependency * Able to provide written informed consent and comply with the study * Females of childbearing potential must have a negative pregnancy test and must be using adequate birth control during the study * Test positive for cocaine on a urinary drug screen * Healthy and medically stable in the opinion of the Principal Investigator

Exclusion criteria

* Liver enzymes greater than two times normal * Any history of hepatitis * History of disorders requiring chronic treatment with steroids * Significantly abnormal ECG * Any prominent DSM-IV axis I disorders other than cocaine dependence * Any subject who presents as a danger to self or others in the opinion of the Principal Investigator * Concomitant use of methamphetamine as determined by self-reporting and verified by measurement of methamphetamine in urinary drug screen * Alcohol consumption greater than 4 drinks per day (1 Drink = 12 oz beer; 5 oz wine; 1.5 oz shot of liquor) * Any clinically significant laboratory test abnormalities * Use of any concomitant medication during the study that would interfere with study medications * Serum cortisol less than 3 µg/dl at any time before or during study * Treatment with an investigational product within 30 days prior to study enrollment * Currently seeking other forms of professional addiction treatment * Known allergic reaction to oxazepam or metyrapone * Lactose intolerance

Design outcomes

Primary

MeasureTime frame
Reduction or elimination of cocaine craving as evidenced by the Cocaine Craving Questionnaire6 weeks

Secondary

MeasureTime frame
Reduction or elimination of cocaine use as evidenced by self-report and urine toxicology6 weeks
Improvement in anxiety and depression symptoms6 weeks

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026