Phase 2
N=32
Effects of Pioglitazone, a PPARgamma Receptor Agonist, on the Abuse Liability of Oxycodone
Opioid Abuse
Bottom Line
View on ClinicalTrials.gov: NCT01395784 ↗Enrolled (actual)
32
Serious AEs
0.0%
Results posted
Feb 2016
Primary outcome: Primary: Subjective Ratings of "Good" Drug Effect — 37; 35; 35 units on a scale
Study Design & Population
- Study type
- Interventional
- Phase
- Phase 2
- Interventions
- pioglitazone (Drug)
- Age
- Adult · 21+ yrs
- Sex
- All
- Sponsor
- New York State Psychiatric Institute
- Primary completion
- Jan 2014
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Subjective Ratings of "Good" Drug Effect |
37; 35; 35 | — |
| SECONDARY Analgesic Responses Using the Cold Pressor Test |
110; 71; 75 | — |
Summary
The ability of pioglitazone (PIO) to alter the effects of opioids in humans has not been characterized in a controlled laboratory setting. Accordingly, the proposed investigation seeks to examine the effects of PIO on oxycodone, one of the most commonly used and abused opioid drugs in the U.S. (Davis et al., 2003). More specifically, the primary aim of this investigation is to characterize the subjective effects of oxycodone under maintenance on various doses of PIO (0, 15, and 45 mg) in non-dependent, prescription opioid abusers. Secondary aims of the study are to examine the influence of PIO on the analgesic, cognitive, and physiological effects of oxycodone.
Eligibility Criteria
Inclusion Criteria
- Recreational use of prescription opioids at least once per month within the past year
- No current major mood, psychotic, or anxiety disorder
- Physically healthy
- aspartate aminotransferase (AST) or alanine aminotransferase (ALT) within normal limits
- Able to perform study procedures 6.21-45 years of age
7.Blood glucose concentration between 70-145 mg/dl for men and 70-125 mg/dl for women (fasting) 8.Hb > 13 for men and Hb > 11 for women with no other evidence of medical disorder resulting in blood loss or anemia/hematological disease
Exclusion Criteria
- Physical dependence on any drugs, excluding nicotine and caffeine
- Participants requesting treatment
- Participants on parole or probation
- Pregnancy or lactation: Female participants must agree to the use of a barrier control method of contraception (e.g. male and female condoms, diaphragms, cervical caps and contraceptive sponges used in combination with spermicide)
- Current or recent history of significant violent behavior (within the past 6 months)
- Current major Axis I psychopathology that might interfere with ability to participate in the study
- Significant suicide risk
- Current chronic pain
- Current or history of congestive heart failure, edema, or diabetes mellitus
- Sensitivity, allergy, or contraindication to opioids or pioglitazone
- Unstable physical disorders that might make participation hazardous, such as end-stage AIDS, hypertension (blood pressure > 140/90), or heart disease (please note that participants will be asked about previous visits to a cardiologist, chest pain, or strong palpitations; if these exist, they will be referred to a cardiologist and excluded unless cleared for participation by a cardiologist)
Data sourced from ClinicalTrials.gov (NCT01395784). 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.