期刊
DRUG AND ALCOHOL DEPENDENCE
卷 233, 期 -, 页码 -出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.drugalcdep.2022.109343
关键词
Naltrexone; Opioid use disorder; Detoxification
资金
- Alkermes Inc.
- NIDA [R01DA010746, R01DA027124, R01DA015822, 2R01DA010746]
Combining minimal buprenorphine, non-opioid medications, and ascending doses of oral naltrexone may facilitate the initiation of XR-naltrexone for opioid users. Inpatient settings have a higher success rate for initiating XR-naltrexone, especially for heroin or speedball injection users and those who use opioids intravenously. Outpatient initiation may be more likely to succeed for prescription opioid users.
Background: Extended-release injectable naltrexone (XR-naltrexone) is effective for treatment of patients with opioid use disorder (OUD), but initiation remains a barrier due to the challenge of tolerating opioid withdrawal prior to administration. Understanding factors associated with successful initiation of XR-naltrexone could facilitate its implementation through patient-treatment matching. Methods: We combined data from five consecutive studies that sought to initiate patients with active opioid use onto XR-naltrexone using a rapid procedure consisting of minimal buprenorphine, non-opioid medications for treating opioid withdrawal, and ascending low doses of oral naltrexone. Associations between patient characteristics and initiating naltrexone were estimated with logistic regression models. To evaluate whether associations differed between inpatient and outpatient settings, patient characteristic-by-setting interactions were also estimated. Results: 409 patients were included in the analyses and 228 (56%) received the first injection. A significantly greater percent of inpatients (62%) vs outpatients (48%) initiated XR-naltrexone. Initiation success was significantly more likely on an inpatient basis for heroin (60.9% inpatient vs 36.2% outpatient), intravenous (56.3% inpatient vs 22.5% outpatient), and speedball users (68.1% inpatient vs 32.3% outpatient). Prescription opioid users showed similar, higher initiation rates across settings (68.9% inpatient; 73.7% outpatient). Conclusions: An inpatient setting may be the preferred strategy for rapid initiation of XR-naltrexone for opioid users with greater severity, including heroin or speedball injection users or those who use opioids intravenously. Initiation on an outpatient basis may be more likely to succeed for prescription opioid users.
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