Prescribing Practices of Nurse Practitioners and Physician Assistants Waivered to Prescribe Buprenorphine and the Barriers They Experience Prescribing Buprenorphine.

In 2016, the Comprehensive Addiction Recovery Act permitted nurse practitioners (NPs) and physician assistants (PAs) to obtain a waiver to prescribe buprenorphine to treat opioid use disorder (OUD), with the goal of increasing access to this treatment. This study's purpose was to describe the buprenorphine prescribing practices of NPs and PAs and compare the barriers rural and urban providers face delivering treatment. From the October 2018 Drug Enforcement Administration list of providers with the waiver to prescribe buprenorphine, all rural NPs and PAs (1,057) and a random sample of 500 urban NPs and PAs were surveyed. The questionnaire queried respondents about demographics, prescribing practices, practice characteristics, reimbursement policies, and barriers to prescribing buprenorphine to treat OUD. Of the waivered NPs and PAs, 80.3% reported having prescribed buprenorphine and 71.1% said they were currently accepting new patients with OUD. Providers with the 30-patient waiver were treating, on average, 13.2 patients; 37.0% were not treating any patients. The most common barrier, cited by half of providers, was concerns about diversion/medication misuse. More rural providers indicated lack of specialty backup and mental health providers as a barrier than urban providers. Never-prescribers and former-prescribers reported 6 barriers at significantly higher rates than did current prescribers. More rural providers accepted Medicaid and cash reimbursement than urban providers. NPs and PAs face many of the same barriers to providing buprenorphine as physicians have reported. Interventions to address these barriers have the potential to benefit all providers with the waiver to prescribe buprenorphine.

Andrilla CHA ，Jones KC ，Patterson DG 《-》

Buprenorphine waiver uptake among nurse practitioners and physician assistants: The role of existing waivered prescriber supply.

Buprenorphine is an effective pharmacotherapy for the treatment of opioid use disorder (OUD), but recent increases in the rate of OUD in the U.S. have outpaced the supply of clinicians waivered to prescribe buprenorphine. To increase the supply of buprenorphine prescribers, the Comprehensive Addiction and Recovery Act expanded buprenorphine prescribing waiver eligibility beyond physicians to nurse practitioners (NP) and physician assistants (PA) in 2017. Little is known about patterns of waiver uptake among NPs and PAs. This study examined associations between the existing supply of waivered prescribers and waiver uptake among NPs and PAs in U.S. states. NP and PA waiver uptake was evaluated as the number of NPs or PAs obtaining an initial buprenorphine prescribing waiver per 10,000 state residents from January 2017 to December 2018 using data from the Buprenorphine Waiver Notification System. NP and PA waiver uptake was estimated as a function of existing waivered prescriber supply, OUD treatment capacity, and other state characteristics using generalized least squares (GLS) regression. 28,010 NPs and PAs have become waivered to prescribe buprenorphine since January 2017. GLS regressions indicated that waivered prescriber supply was significantly, positively associated with both NP (b = 0.101 p < 0.001) and PA (b = 0.030, p < 0.001) waiver uptake. Results suggest an addition of ten waivered prescribers to existing supply was associated with an increase of one waivered NP, and an addition of thirty-three waivered prescribers to existing supply was associated with an increase of one waivered PA. NP and PA waiver uptake is strongly associated with the existing supply of waivered prescribers in a state, suggesting NPs and PAs may be more likely to acquire waivers in states with a high existing supply of buprenorphine prescribers. Additional policy solutions are needed to scale up the supply of buprenorphine prescribers in underserved states.

Auty SG ，Stein MD ，Walley AY ，Drainoni ML ... -  《-》

Perceptions of buprenorphine barriers and efficacy among nurse practitioners and physician assistants.

Medications for opioid use disorder (MOUDs), including methadone, buprenorphine, and naltrexone, decrease mortality and morbidity for people with opioid use disorder (OUD). Buprenorphine and methadone have the strongest evidence base among MOUDs. Unlike methadone, buprenorphine may be prescribed in office-based settings in the U.S., including by nurse practitioners (NPs) and physician assistants (PAs) who have a federal waiver and adhere to federal patient limits. Buprenorphine is underutilized nationally, particularly in rural areas, and NPs/PAs could help address this gap. Therefore, we sought to identify perceptions of buprenorphine efficacy and perceptions of prescribing barriers among NPs/PAs. We also sought to compare perceived buprenorphine efficacy and perceived prescribing barriers between waivered and non-waivered NPs/PAs, as well as to compare perceived buprenorphine efficacy to perceived naltrexone and methadone efficacy. We disseminated an online survey to a random national sample of NPs/PAs. We used Mann-Whitney U tests to compare between waivered and non-waivered respondents. We used non-parametric Friedman tests and post-hoc Wilcoxon signed-rank tests to compare perceptions of medication types. 240 respondents participated (6.5% response rate). Most respondents agreed buprenorphine is efficacious and believed counseling and peer support should complement buprenorphine. Buprenorphine was generally perceived as more efficacious than both naltrexone and methadone. Perceived buprenorphine efficacy and prescribing barriers differed by waiver status. Non-waivered practitioners were more likely than waivered practitioners to have concerns about buprenorphine affecting patient mix. Among waivered NPs/PAs, key buprenorphine prescribing barriers were insurance prior authorization and detoxification access. Our results suggest that different policies should target perceived barriers affecting waivered versus non-waivered NPs/PAs. Concerns about patient mix suggest stigmatization of patients with OUD. NP/PA education is needed about comparative medication efficaciousness, particularly regarding methadone. Even though many buprenorphine treatment patients benefits from counseling and/or peer support groups, NPs/PAs should be informed that such psychosocial treatment methods are not necessary for all buprenorphine patients.

Andraka-Christou B ，Page C ，Schoebel V ，Buche J ，Haffajee RL ... -  《-》

Characteristics and prescribing practices of clinicians recently waivered to prescribe buprenorphine for the treatment of opioid use disorder.

Expanding access to medication-assisted treatment with buprenorphine is a cornerstone of the opioid crisis response, yet buprenorphine remains underutilized. Research has identified multiple barriers to prescribing buprenorphine. This study aimed to examine clinician characteristics, prescribing practices and barriers and incentives to prescribing buprenorphine among clinicians with a federal Drug Addiction Treatment Act of 2000 (DATA) waiver to prescribe buprenorphine for opioid use disorder treatment. Electronic survey of 4225 clinicians conducted between March and April 2018. United States. Clinicians obtaining an initial federal DATA waiver or an increase in authorized patient limit to prescribe buprenorphine for opioid use disorder treatment in 2017. Descriptive statistics and multivariable logistic regression examined clinician characteristics, prescribing practices and primary barriers and incentives to prescribing buprenorphine or prescribing at or near the authorized patient limit. Among respondents, 75.5% had prescribed buprenorphine since obtaining a DATA waiver; the mean (standard deviation) number of patients treated in the past month was 26.6 (40.3), and 13.1% of providers were prescribing at or near their patient limit in the past month. Lack of patient demand, cited by 19.4% of clinicians, was the most common primary barrier to prescribing buprenorphine or prescribing to the authorized patient limit, followed by time constraints in practice (14.6%) and insurance reimbursement, prior authorization or other insurance requirements (13.2%). Increased patient demand (22.2%), institutional support for buprenorphine treatment (12.5%) and increased reimbursement (12.2%) were the most endorsed primary incentives for buprenorphine prescribing. Multivariable logistic regression models identified multiple clinician characteristics associated with buprenorphine prescribing and prescribing at or near the authorized patient limit. US clinicians recently waivered to prescribe buprenorphine for opioid use disorder treatment appear to prescribe well below their patient limit, and many do not prescribe at all.

Jones CM ，McCance-Katz EF 《-》

Geographic Distribution of Providers With a DEA Waiver to Prescribe Buprenorphine for the Treatment of Opioid Use Disorder: A 5-Year Update.

Opioid use disorder (OUD) is a substantial public health problem. Buprenorphine is an effective medication-assisted treatment (MAT) for OUD, but access is difficult for patients, especially in rural locations. To improve access, the Comprehensive Addiction and Recovery Act of 2016 extended the ability to get a Drug Enforcement Administration (DEA) waiver to prescribe buprenorphine to treat OUD to nurse practitioners (NPs) and physician assistants (PAs). This study summarizes the geographic distribution of waivered physicians, NPs, and PAs at the end of 2017 and compares it to the distribution of waivered physicians 5 years earlier. Using the DEA list of providers with a waiver to prescribe buprenorphine to treat OUD and the Area Health Resources File, we assigned waivered providers to counties in 1 of 4 geographic categories. We calculated the number of counties in each category that did not have a waivered provider and county provider to population ratios and then compared our results to the waivered workforce in 2012. The availability of a physician with a DEA waiver to provide office-based MAT has increased across all geographic categories since 2012. More than half of all rural counties (56.3%) still lack a provider, down from 67.1% in 2012. Almost one-third (29.8%) of rural Americans compared to 2.2% of urban Americans live in a county without a buprenorphine provider. NPs and PAs add otherwise lacking treatment availability in 56 counties (43 rural). Overall, MAT access has improved, but rural communities still experience treatment disparities.

Andrilla CHA ，Moore TE ，Patterson DG ，Larson EH ... -  《-》