TY - JOUR KW - Adult KW - Alcoholism/drug therapy/psychology KW - Delayed-Action Preparations/therapeutic use KW - Female KW - Humans KW - Male KW - Medication Adherence/psychology KW - Middle Aged KW - Naltrexone/therapeutic use KW - Narcotic Antagonists/therapeutic use KW - Opioid-Related Disorders/drug therapy/psychology KW - Outcome Assessment (Health Care) KW - Psychotherapy KW - Retrospective Studies KW - United States KW - Veterans Health/statistics & numerical data KW - Veterans/psychology AU - G. Chang AU - M. Crawford AU - M. Pitts AU - A. Z. Schein AU - K. Goodwin AU - J. L. Enggasser A1 - AB - BACKGROUND AND OBJECTIVES: Despite the promise of extended release naltrexone in the treatment of the opioid and alcohol use disorders, challenges with initiation and subsequent adherence have limited its potential. The purpose of this study is to identify the patient and treatment characteristics associated with adherence to extended release naltrexone. METHODS: Retrospective cohort study of 155 veterans who initiated the medication in FY 2014 and FY2015. Medical records were abstracted for patient and treatment data including preferred drug and utilization of substance use treatment in the year before and after medication initiation. RESULTS: Sample characteristics include 94% male, 70% domiciled, 60% without current legal problems, 30% employed, and preferred drug being opioids for 55% and alcohol for 45%. The mean of five extended release naltrexone injections did not differ by preferred drug. Treatment variables associated with medication adherence included concurrent substance use residential, individual, group, and psychiatric therapies (all p < .05) with inpatient detoxification admissions halved afterward (p < .0001) . DISCUSSION AND CONCLUSIONS: Whereas most studies of extended release naltrexone have focused on patients with either alcohol or opioid use disorders for 6 months, this study allowed for a direct comparison of adherence in both groups over a year. The average treatment persistence in this veteran sample is greater than described in other public sector studies and may illustrate the importance of concurrent psychosocial therapies. SCIENTIFIC SIGNIFICANCE: Results extend the findings of other studies and add to an emerging appreciation of the factors associated with treatment retention for extended release naltrexone. (Am J Addict 2018;27:524-530). BT - The American journal on addictions C5 - Opioids & Substance Use CP - 6 CY - England DO - 10.1111/ajad.12786 IS - 6 JF - The American journal on addictions N2 - BACKGROUND AND OBJECTIVES: Despite the promise of extended release naltrexone in the treatment of the opioid and alcohol use disorders, challenges with initiation and subsequent adherence have limited its potential. The purpose of this study is to identify the patient and treatment characteristics associated with adherence to extended release naltrexone. METHODS: Retrospective cohort study of 155 veterans who initiated the medication in FY 2014 and FY2015. Medical records were abstracted for patient and treatment data including preferred drug and utilization of substance use treatment in the year before and after medication initiation. RESULTS: Sample characteristics include 94% male, 70% domiciled, 60% without current legal problems, 30% employed, and preferred drug being opioids for 55% and alcohol for 45%. The mean of five extended release naltrexone injections did not differ by preferred drug. Treatment variables associated with medication adherence included concurrent substance use residential, individual, group, and psychiatric therapies (all p < .05) with inpatient detoxification admissions halved afterward (p < .0001) . DISCUSSION AND CONCLUSIONS: Whereas most studies of extended release naltrexone have focused on patients with either alcohol or opioid use disorders for 6 months, this study allowed for a direct comparison of adherence in both groups over a year. The average treatment persistence in this veteran sample is greater than described in other public sector studies and may illustrate the importance of concurrent psychosocial therapies. SCIENTIFIC SIGNIFICANCE: Results extend the findings of other studies and add to an emerging appreciation of the factors associated with treatment retention for extended release naltrexone. (Am J Addict 2018;27:524-530). PB - . This article is a U.S. Government work and is in the public domain in the USA PP - England PY - 2018 SN - 1521-0391; 1055-0496 SP - 524 EP - 530 EP - T1 - Adherence to extended release naltrexone: Patient and treatment characteristics T2 - The American journal on addictions TI - Adherence to extended release naltrexone: Patient and treatment characteristics U1 - Opioids & Substance Use U2 - 30106489 U3 - 10.1111/ajad.12786 VL - 27 VO - 1521-0391; 1055-0496 Y1 - 2018 ER -