Subsequent Buprenorphine Treatment Following Emergency Physician Buprenorphine Prescription Fills: A National Assessment 2019 to 2020

Emergency Clinician Buprenorphine Initiation, Subsequent Prescriptions, and Continuous Prescriptions

Importance

Rates of opioid use disorder (OUD) and associated mortality in the US remain high. Treatment of OUD with buprenorphine reduces morbidity and mortality. There have been national efforts to expand buprenorphine initiation to the emergency department (ED), where many patients with low treatment access seek medical care. Adoption and trends of emergency clinician buprenorphine prescribing are unknown.

Objective

To describe emergency clinician buprenorphine initiation for OUD, subsequent prescriptions, and changes over time in California.

Design, Setting, and Participants

Observational retrospective study of buprenorphine prescriptions in the California Controlled Substance Utilization Review and Evaluation System (CURES) database from January 1, 2017, to December 31, 2022. Any patient aged 18 to 79 years with a California zip code who filled a buprenorphine prescription in CURES and their California prescribers were eligible for inclusion.

Exposure

Buprenorphine prescription by an emergency clinician.

Main Outcomes and Measures

Outcomes included (1) the number of patients prescribed buprenorphine; (2) the number of clinicians prescribing buprenorphine; (3) the number and characteristics of buprenorphine prescriptions; (4) the percentage of emergency clinician buprenorphine initiation prescriptions with subsequent linkage to a second prescription and continuous prescriptions, also reported as a continuation ratio; and (5) days and number of initiation prescriptions prior to continuous prescriptions.

Results

In this retrospective observational study, 345 024 patients received 3.8 million buprenorphine prescriptions from 21 099 clinicians in California from 2017 to 2022. The mean age of patients at the time of first buprenorphine prescription was 37 years; 8187 (67%) were male. Emergency clinicians increased from 2% (n = 78) to 16% (n = 1789) of buprenorphine prescribers in 2017 and 2022, respectively (P < .001). Buprenorphine initiation prescriptions by emergency clinicians increased from 0.1% (n = 53) to 5% (n = 4493) of all initiation prescriptions in 2017 and 2022, respectively (P = .001). The continuation ratio for patients to receive a second prescription within 40 days of an ED initiation was 2.8 (10 823/3916). The continuation ratio for patients to start 180 days or more of continuous prescriptions within 40 days of ED buprenorphine initiation was 18.3 (10 823/593) and 9.1 within 1 year (5989/655 [2017-2021 data]).

Conclusions and Relevance

These findings suggest increasing prescription of buprenorphine for OUD by California emergency clinicians from 2017 to 2022, with approximately 1 in 9 patients going on to receive continuous buprenorphine prescriptions within 1 year.

Initiation of buprenorphine in the emergency department or emergency out-of-hospital setting: A mixed-methods systematic review

INTRODUCTION

People who use substances increasingly access healthcare primarily through emergency medical services (EMS) and emergency departments (EDs). To meet the needs of these patients, EMS and EDs have become access points for medications for opioid use disorder (OUD), specifically buprenorphine. This systematic review aimed to quantify the efficacy of these programs, examining retention in treatment for OUD, rates of re-presentation to ED or EMS, and rates of precipitated withdrawal, as well as summarise clinician and patient perspectives on buprenorphine initiation in these settings.

METHODS

This review considered studies including patients with OUD receiving, and providers initiating, buprenorphine in an ED or EMS setting. A convergent, segregated approach to mixed-methods review was used as recommended by the Joanna Briggs Institute. A search was conducted of MEDLINE, CINAHL, EMBASE, and the Cochrane Library. Where relevant, meta-analyses of odds ratios and proportions were conducted.

FINDINGS

In both randomised (OR 5.97, 95 %CI 2.52-14.14, 227 participants, I2 16.93 %) and observational (OR 4.28, 95 %CI 2.45-7.48, 779 participants, I2 66.97 %) research, buprenorphine in the ED or EMS setting was associated with increased odds of treatment engagement at 30 days. Rates of retention in treatment varied across measured time points, from 77 % (95 %CI 74-80 %, 763 participants, I2 0.01 %) within 24 h, to 35 % (95 %CI 29-40 %) at 12 months. A low rate of precipitated withdrawal was reported (0.00 %, 95 %CI 0.00-1.00 %, 851 participants, I2 0.00 %). Clinicians and patients were generally supportive of ED-initiated buprenorphine, while identifying the initiation buprenorphine as one component of a longitudinal care path for people with OUD. Patients valued clinicians engaging in shared decision-making, while clinicians identified the environment of the ED often made this challenging.

CONCLUSION

The initiation of buprenorphine in the ED setting is associated with higher odds of short and medium-term treatment engagement. Further research is required into EMS-initiated buprenorphine, as well as patient perspectives of ED- and EMS-initiated buprenorphine.

Buprenorphine prescription and treatment initiation through preemptive outreach and telehealth consultation with emergency medicine providers

BACKGROUND

Persons with opioid use disorder (OUD) urgently need improved access to medications for opioid use disorder (MOUD) and long-term treatment. Promising options include initiating buprenorphine in the emergency department (ED), telemedicine, and proactive treatment referrals before overdose events.

OBJECTIVE(S)

We describe the process and outcomes of a novel referral path utilizing preemptive outreach and telemedicine to facilitate rapid access to MOUD and long-term treatment.

METHODS

Participants were referred to telemedicine appointments with ED providers for buprenorphine initiation and to treatment agencies via an electronic referral network. Administrative data tracked participation at each stage of the process. Independent samples t-tests and chi-square tests assessed differences in process completion based on demographics.

RESULTS

163 persons with OUD or recent opioid overdose were referred, with high rates of participant follow-through, resulting in 126 new buprenorphine prescriptions and 114 linkages to long-term treatment. Of the 163 patients referred, 114 (69.9%) completed all steps. Participant demographics were not associated with significantly different completion rates.

CONCLUSIONS

This model serves as a viable pathway to link people to treatment resources and MOUD, and novelly combines prospective client outreach with telemedicine to reach persons before they arrive in the ED following an overdose. Future studies should examine the impact of similar programs on subsequent opioid use rates and treatment retention.

Initiation of Buprenorphine in the Emergency Department: A Survey of Emergency Clinicians

Introduction

Initiation of buprenorphine for opioid use disorder (OUD) in the emergency department (ED) is supported by the American College of Emergency Physicians and is shown to be beneficial. This practice, however, is largely underutilized.

Methods

To assess emergency clinicians' attitudes and readiness to initiate buprenorphine in the ED we conducted a cross-sectional, electronic survey of clinicians (attendings, residents, and non-physician clinicians) in a single, academic ED of a tertiary-care hospital, which serves a rural population. Our survey aimed to assess emergency clinicians' attitudes toward and readiness to initiate buprenorphine in the ED and identify clinician-perceived facilitators and barriers. Our survey took place after the initiation of the IMPACT (Initiation of Medication, Peer Access, and Connection to Treatment) project.

Results

Our results demonstrated the level of agreement that buprenorphine prescribing is within the emergency clinician's scope of practice was inversely correlated to average years in practice (R2 = 0.93). X-waivered clinicians indicated feeling more prepared to administer buprenorphine in the ED R2 = 0.93. However, they were not more likely to report ordering buprenorphine or naloxone in the ED within the prior three months. Those who reported having a family member or close friend with substance use disorder (SUD) were not more likely to agree buprenorphine initiation is within the clinician's scope of practice (P = 0.91), nor were they more likely to obtain an X-waiver (P = 0.58) or report ordering buprenorphine or naloxone for patients in the ED within the prior three months (P = 0.65, P = 0.77). Clinicians identified availability of pharmacists, inpatient/outpatient referral resources, and support staff (peer recovery support specialists and care managers) as primary facilitators to buprenorphine initiation. Inability to ensure follow-up, lack of knowledge of available resources, and insufficient education/preparedness were primary barriers to ED buprenorphine initiation. Eighty-three percent of clinicians indicated they would be interested in additional education regarding OUD treatment.

Conclusion

Our data suggests that newer generations of emergency clinicians may have less hesitancy initiating buprenorphine in the ED. In time, this could mean increased access to treatment for patients with OUD. Understanding clinician-perceived facilitators and barriers to buprenorphine initiation allows for better resource allocation. Clinicians would likely further benefit from additional education regarding medications for opioid use disorder (MOUD), available resources, and follow-up statistics.

Understanding Healthcare Providers' Care for Patients with Medications Treating Opioid Use Disorder in the Emergency Department: A Scoping Review

BACKGROUND

There is limited research exploring the changing clinical practices among healthcare providers (HPs) care for patients with Emergency Department (ED)-initiated Medication for Opioid Use Disorder (MOUD).

METHODS

This scoping review followed the methodological framework of Arksey and O'Malley to map relevant evidence and synthesize the findings. We searched PubMed, EMBASE, CINAHL, Web of Science, and Scopus for related studies from inception through October 12, 2022. Following the application of inclusion and exclusion criteria, 16 studies were included. Subsequently, they were charted and analyzed thematically based on ecological systems theory.

RESULTS

The main determinants in the four ecological systems were generated as follows: (1) microsystem: willingness and attitude, professional competence, readiness, and preference; (2) mesosystem: ED clinical practices, departmental factors; (3) exosystem: multidisciplinary approaches, discharge planning, and (4) macrosystem: stigma, health insurance, policy. The findings have implications for HPs and researchers, as insufficient adoption, implementation, and retention of MOUD in the ED affect clinical practices.

CONCLUSIONS

Across the four ecological systems, ED-initiated MOUD is shaped by multifaceted determinants. The microsystem underscores pivotal patient-HP trust dynamics, while the mesosystem emphasizes interdepartmental synergies. Exosystemically, resource allocation and standardized training remain paramount. The macrosystem reveals profound effects of stigma, insurance disparities, and evolving policies on treatment access and efficacy. Addressing these interconnected barriers is crucial for optimizing patient outcomes in the context of MOUD.

Impact of Statewide Statute Limiting Days' Supply to Opioid-Naive Patients

INTRODUCTION

To address the ongoing opioid crisis, states use policy enactment to restrict prescribing by licensed healthcare providers and mandate the use of Prescription Drug Monitoring Programs. There have been mixed results regarding the effectiveness of such state policies. The purpose of this study is to evaluate the impact of Colorado Senate Bill 18-022, which limits opioid prescriptions to ≤7-day supply among patients without an opioid prescription in the previous year (i.e., are opioid naive).

METHODS

This is a retrospective interrupted time-series analysis of opioid prescribing to evaluate the weekly percentage of opioid prescriptions consistent with statutory limits for ≤7-day supply among opioid-naive patients before and after enactment using Prescription Drug Monitoring Programs data from May 21, 2017 to May 25, 2019. Statistical analysis was performed in 2021-2022.

RESULTS

The weekly percentage of opioid prescriptions ≤7-day supply increased by an average of 0.12% per week (p<0.0001) from 79.7% to 87.4% in the week before enactment. The week after enactment, the average increased by 0.2% (p=0.67). The year after enactment, the average weekly percentage change was 0.07% per week, a 0.05% decrease (p=0.01).

CONCLUSIONS

Statutory limits on days' supply among opioid-naive patients had little impact on opioid prescribing in Colorado. Legislating limits on opioid prescribing should be evaluated using Prescription Drug Monitoring Program data and considered for deimplementation when not impactful.

National Institute on Drug Abuse Clinical Trials Network Meeting Report: Advancing Emergency Department Initiation of Buprenorphine for Opioid Use Disorder

Opioid use disorder and opioid overdose deaths are a major public health crisis, yet highly effective evidence-based treatments are available that reduce morbidity and mortality. One such treatment, buprenorphine, can be initiated in the emergency department (ED). Despite evidence of efficacy and effectiveness for ED-initiated buprenorphine, universal uptake remains elusive. On November 15 and 16, 2021, the National Institute on Drug Abuse Clinical Trials Network convened a meeting of partners, experts, and federal officers to identify research priorities and knowledge gaps for ED-initiated buprenorphine. Meeting participants identified research and knowledge gaps in 8 categories, including ED staff and peer-based interventions; out-of-hospital buprenorphine initiation; buprenorphine dosing and formulations; linkage to care; strategies for scaling ED-initiated buprenorphine; the effect of ancillary technology-based interventions; quality measures; and economic considerations. Additional research and implementation strategies are needed to enhance adoption into standard emergency care and improve patient outcomes.

Long-Term Effects of Increasing Buprenorphine Treatment Seeking, Duration, and Capacity on Opioid Overdose Fatalities: A Model-based Analysis

OBJECTIVES

Because buprenorphine treatment of opioid use disorder reduces opioid overdose deaths (OODs), expanding access to care is an important policy and clinical care goal. Policymakers must choose within capacity limitations whether to expand the number of people with opioid use disorder who are treated or extend duration for existing patients. This inherent tradeoff could be made less acute with expanded buprenorphine treatment capacity.

METHODS

To inform such decisions, we used a validated simulation model to project the effects of increasing buprenorphine treatment-seeking, average episode duration, and capacity (patients per provider) on OODs in the United States from 2023 to 2033, varying the start time to assess the effects of implementation delays.

RESULTS

Results show that increasing treatment duration alone could cost lives in the short term by reducing capacity for new admissions yet save more lives in the long term than accomplished by only increasing treatment seeking. Increasing provider capacity had negligible effects. The most effective 2-policy combination was increasing capacity and duration simultaneously, which would reduce OODs up to 18.6% over a decade. By 2033, the greatest reduction in OODs (≥20%) was achieved when capacity was doubled and average duration reached 2 years, but only if the policy changes started in 2023. Delaying even a year diminishes the benefits. Treatment-seeking increases were equally beneficial whether they began in 2023 or 2025 but of only marginal benefit beyond what capacity and duration achieved.

CONCLUSIONS

If policymakers only target 2 policies to reduce OODs, they should be to increase capacity and duration, enacted quickly and aggressively.

Buprenorphine use and courses of care for opioid use disorder treatment within the Veterans Health Administration

BACKGROUND

Retention of patients in buprenorphine medication treatment for opioid use disorder (B-MOUD) reduces harms associated with opioid use disorder (OUD). We sought to characterize the patients receiving B-MOUD and courses of B-MOUD in a large healthcare system.

METHODS

We conducted a retrospective, open cohort study of patients with OUD who either did or did not receive B-MOUD courses within the Veterans Health Administration (VHA) from January 2006 through July 2019, using VHA clinical data. We compared patients receiving or not receiving B-MOUD, characterized B-MOUD courses (e.g., length and doses), and examined persistence, across patient characteristics, over time. We used analyses for normally or non-normally distributed continuous variables, categorical data, and persistence over time (Kaplan-Meier persistence curves).

RESULTS

We identified 255,726 Veterans with OUD; 40,431 (15.8%) had received 63,929 B-MOUD courses. Compared to patients with OUD without B-MOUD, patients with B-MOUD were younger, more often of white race, and had more co-morbidities. The frequency of new B-MOUD starts and prevalent B-MOUD patients ranged from 1550 and 1989 in 2007 to 8146 and 16,505 in 2018, respectively. The median duration of B-MOUD was 157 (IQR: 37-537) days for all courses and 33.8% patients had more than one course. The average proportion days covered was 90% (SD: 0.15), and the average prescribed daily dose was 13.44 (SD: 6.5).

CONCLUSIONS

Within a VHA B-MOUD cohort, courses increased more than 10-fold from 2006 to 2016 with nearly half of patients experiencing multiple courses. Patient demographics seem to dictate the length of courses.

Perspectives of Clinicians and Staff at Community-Based Opioid Use Disorder Treatment Settings on Linkages With Emergency Department-Initiated Buprenorphine Programs

Importance

An increasing number of emergency departments (EDs) are initiating buprenorphine for opioid use disorder (OUD) and linking patients to ongoing community-based treatment, yet community-based clinician and staff perspectives regarding this practice have not been characterized.

Objective

To explore perspectives and experiences regarding ED-initiated buprenorphine among community-based clinicians and staff in geographically distinct regions.

Design, Setting, and Participants

This qualitative study reports findings from Project ED Health, a hybrid type 3 effectiveness-implementation study designed to evaluate the impact of implementation facilitation on ED-initiated buprenorphine with referral to ongoing medication treatment. Clinicians and staff from community-based treatment programs were identified by urban academic EDs as potential referral sites for ongoing OUD treatment in 4 cities across the US in a formative evaluation as having the capability to continue medication treatment. Focus groups were held from April 1, 2018, to January 11, 2019, to examine community OUD treatment clinician and staff perspectives on accepting patients who have received ED-initiated buprenorphine. Data were analyzed from August 2020 to August 2022.

Main Outcomes and Measures

Data collection and analysis were grounded in the Promoting Action on Research Implementation in Health Services (PARIHS) implementation science framework, focusing on domains including evidence, context, and facilitation.

Results

A total of 103 individuals (mean [SD] age, 45.3 [12.0] years; 76 female and 64 White) participated in 14 focus groups (groups ranged from 3-22 participants). Participants shared negative attitudes toward buprenorphine and variable attitudes toward ED-initiated buprenorphine. Prominent barriers included the community site treatment capacity and structure as well as payment and regulatory barriers. Perceived factors that could facilitate this model included additional substance use disorder training for ED staff, referrals and communication, greater inclusion of peer navigators, and addressing sociostructural marginalization that patients faced.

Conclusions and Relevance

In this study of community-based clinicians and staff positioned to deliver OUD treatment, participants reported many barriers to successful linkages for patients who received ED-initiated buprenorphine. Strategies to improve these linkages included educating communities and programs, modeling low-barrier philosophies, and using additional staff trained in addiction as resources to improve transitions from EDs to community partners.

Buprenorphine treatment episode duration, dosage, and concurrent prescribing of benzodiazepines and opioid analgesics: The effects of Medicaid prior authorization policies

BACKGROUND

Buprenorphine is an effective medication for the treatment of opioid use disorder (OUD), but the association between prior authorization policies and quality of care for individuals receiving buprenorphine treatment is not well-understood.

METHODS

Using 2006-2013 Medicaid Analytic eXtract (MAX) data from 34 states and the District of Columbia, we identified 294,031 episodes of buprenorphine treatment for OUD among individuals aged 14-64 years. We estimated generalized difference-in-differences models to examine the association between buprenorphine prior authorization policies and changes in buprenorphine treatment quality along four dimensions: (1) duration of at least 180 days, (2) dosage of at least 8 milligrams, and concurrent prescribing of (3) opioid analgesics and (4) benzodiazepines.

RESULTS

Buprenorphine prior authorization policies were associated with an 11-percentage point reduction (p < 0.01) in the likelihood of episodes with a duration of at least 180 days in the first four years after policy implementation. The policy was not associated with changes in effective dosage or concurrent prescribing of opioid analgesics or benzodiazepines.

CONCLUSIONS

Buprenorphine prior authorization policies were associated with a sizeable and significant reduction in episodes of at least 180 days duration, underscoring the importance of identifying and removing barriers to effective and appropriate OUD care.