TY - JOUR KW - Adolescent KW - Adult KW - Analgesics, Opioid/chemistry/therapeutic use/urine KW - Chemistry, Pharmaceutical KW - Delayed-Action Preparations KW - Female KW - Humans KW - Male KW - Medical Records KW - Methadone/therapeutic use KW - Middle Aged KW - Ontario KW - Opiate Substitution Treatment KW - Opioid-Related Disorders/diagnosis/rehabilitation/urine KW - Oxycodone/chemistry/urine KW - Prescription Drug Misuse/prevention & control KW - Prospective Studies KW - Retrospective Studies KW - Substance Abuse Detection/methods KW - Surveys and Questionnaires KW - Urinalysis KW - Young Adult AU - C. Sankey AU - B. Setnik AU - Z. Harsanyi AU - K. Michalko AU - Z. Yang AU - P. Geoffroy A1 - AB - OBJECTIVE: Emerging data are demonstrating that tamper-resistant opioids may play an important role in changing prescription opioid abuse behaviors. This study was a chart review to examine if the reformulation of OxyContin(R) into a version with tamper-resistant properties (OxyNEO(R)) had an impact on oxycodone-positive urine drug screens (UDSs) in opioid-dependent patients receiving methadone maintenance therapy (MMT). DESIGN: The historical element of this study examined 250 eligible charts from patients on MMT who had data during the time periods when only OxyContin was available (baseline period), during the transition to OxyNEO, and when only OxyNEO was available. The prospective element included an exploratory questionnaire regarding retrospective opioid use. SETTING: The study was conducted at three methadone clinics, in Oshawa, Peterborough, and Scarborough in Ontario, Canada. PARTICIPANTS: Male and female patients were eligible if they had a diagnosis of opioid dependency, received MMT, and had at least one oxycodone-positive UDS during the baseline period. INTERVENTION: This was a noninterventional study. MAIN OUTCOME MEASURE: The main outcome was the number of oxycodonepositive UDSs. RESULTS: The results demonstrated a marked reduction in oxycodone-positive UDSs that showed stepwise, statistically significant decreases during the transition and post-OxyContin periods relative to baseline. While the oxycodone-positive UDS results were decreasing, morphine-related-positive UDSs remained relatively stable during the same periods. There were no significant gender differences noted. CONCLUSIONS: The introduction of OxyNEO was associated with a statistically significant reduction in oxycodone exposure in a population of methadone-maintained patients. BT - Journal of opioid management C5 - Opioids & Substance Use CP - 2 CY - United States DO - 10.5055/jom.2016.0327 IS - 2 JF - Journal of opioid management N2 - OBJECTIVE: Emerging data are demonstrating that tamper-resistant opioids may play an important role in changing prescription opioid abuse behaviors. This study was a chart review to examine if the reformulation of OxyContin(R) into a version with tamper-resistant properties (OxyNEO(R)) had an impact on oxycodone-positive urine drug screens (UDSs) in opioid-dependent patients receiving methadone maintenance therapy (MMT). DESIGN: The historical element of this study examined 250 eligible charts from patients on MMT who had data during the time periods when only OxyContin was available (baseline period), during the transition to OxyNEO, and when only OxyNEO was available. The prospective element included an exploratory questionnaire regarding retrospective opioid use. SETTING: The study was conducted at three methadone clinics, in Oshawa, Peterborough, and Scarborough in Ontario, Canada. PARTICIPANTS: Male and female patients were eligible if they had a diagnosis of opioid dependency, received MMT, and had at least one oxycodone-positive UDS during the baseline period. INTERVENTION: This was a noninterventional study. MAIN OUTCOME MEASURE: The main outcome was the number of oxycodonepositive UDSs. RESULTS: The results demonstrated a marked reduction in oxycodone-positive UDSs that showed stepwise, statistically significant decreases during the transition and post-OxyContin periods relative to baseline. While the oxycodone-positive UDS results were decreasing, morphine-related-positive UDSs remained relatively stable during the same periods. There were no significant gender differences noted. CONCLUSIONS: The introduction of OxyNEO was associated with a statistically significant reduction in oxycodone exposure in a population of methadone-maintained patients. PP - United States PY - 2016 SN - 1551-7489; 1551-7489 SP - 149 EP - 159 EP - T1 - Opioid use following the introduction of an extended-release oxycodone formulation with tamper-resistant properties: Prospective historical chart review in methadone-maintained patients T2 - Journal of opioid management TI - Opioid use following the introduction of an extended-release oxycodone formulation with tamper-resistant properties: Prospective historical chart review in methadone-maintained patients U1 - Opioids & Substance Use U2 - 27194200 U3 - 10.5055/jom.2016.0327 VL - 12 VO - 1551-7489; 1551-7489 Y1 - 2016 ER -