Addressing buprenorphine bottlenecks in the context of MAT Act implementation: A shared responsibility

Clinical pharmacist practitioners prescribing of buprenorphine for opioid use disorder

BACKGROUND

Clinical Pharmacist Practitioners (CPPs) have a long history of collaborating with other prescribers for the provision of buprenorphine medication treatment for opioid use disorder (B-MOUD). In January 2023, with the removal of the DATA 2000 X-waiver process, CPPs were allowed to prescribe B-MOUD in states that allow CPP prescriptive authority of controlled substances. We sought to examine CPP prescribing patterns of B-MOUD in a large heath care system in 2023.

METHODS

We conducted a retrospective cohort study of patients with opioid use disorder (OUD) who received B-MOUD care in 2023 within the Veterans Health Administration (VHA). B-MOUD was defined as a formulation of buprenorphine indicated for OUD. We characterized Veterans who were prescribed B-MOUD by CPPs and examined the characteristics of these prescriptions and the episodes of care (EOC).

RESULTS

In 2023, 22,863 Veterans received B-MOUD; 1090 (4.8 %) from a CPP. Veterans prescribed B-MOUD by CPPs were primarily 36-50 years old (n = 419, 38.4 %), male (n = 987, 90.6 %), white (n = 987, 90.6 %), non-Hispanic/Latino (n = 1043, 95.7 %), and in urban areas (n = 648, 59.4 %). 110 CPPs prescribed B-MOUD in 36 states representing 1.9 % of all B-MOUD prescribers in 2023. CPPs prescribed 5258 B-MOUD prescriptions, conducted 339 (2.7 %) initiations, were involved in 1162 (4.2 %) of all EOC throughout the year, and were the sole prescriber for 16.6 % of EOC. CPP-involved EOC had 86.9 % (n = 867) 90-day retention.

CONCLUSION

When they were able to, VHA CPPs were early adopters in prescribing B-MOUD. B-MOUD prescribing by CPPs is an emerging opportunity to further expand access to B-MOUD.

Quantifying the size and characteristics of a population of people who use drugs on the reservation lands of a tribal nation in the southern plains (USA)

BACKGROUND

Reversing trends in substance use-related health inequities among Indigenous Peoples requires investments in epidemiological research anchored in community-based participatory research (CBPR) methodologies. There is scarce literature that describes how to implement population estimation methods on American Indian reservation lands.

OBJECTIVE

This research describes how we leveraged CBPR throughout the implementation of a population estimation study conducted in collaboration with a Tribal Nation in the southern plains to quantify the size and characteristics of persons with histories of illicit substance use on reservation lands.

METHODS

We used the capture and recapture population estimation methodology in April-May 2023 to estimate the size of the population of people who used illicit substances in the past six months in a county within the collaborating tribe's jurisdiction. Participant recruitment occurred in areas where people who use drugs were known to congregate. Participants completed a survey that included measures pertaining to sociodemographics, substance use, harm reduction, overdose, sexual health, and cultural factors.

RESULTS

In total, N = 501 surveys were completed by unique persons who had used illicit substances in their lifetime. A large proportion had injected drugs in the past six months or greater than six months ago (19.6% and 31.7%, respectively). There were N = 210 persons who reported having used illicit substances by at least one route of administration within the last six months. We estimated that there were 419 (95% confidence interval = 277, 562) adults who had recently used an illicit substance in the county where the study occurred.

CONCLUSIONS

This study demonstrates that population estimation methodologies can be integrated with community-based participatory research approaches to quantify the size of populations of people who use drugs. Future work should be conducted to understand the degree to which population-level needs evolve over time and in response to local initiatives.

Facilitators of and barriers to buprenorphine initiation in the emergency department: a scoping review

Buprenorphine initiation in the Emergency Department (ED) has been hailed as an evidence-based strategy to mitigate the opioid overdose crisis, but its implementation has been limited. This scoping review synthesizes barriers and facilitators to buprenorphine initiation in the ED, and uses the Consolidated Framework for Implementation Research and a critical lens to analyze the literature. Results demonstrate an immense effort across the U.S. and Canada to implement ED-initiated buprenorphine. Facilitators include multidisciplinary addiction teams and co-located, low-barrier, harm reduction-informed services to support transitions. Barriers include a failure to address structural stigma, client complexity, and an increasingly toxic drug supply. The literature also misses the opportunity to include the perspectives of service users, health administrators, and learners. Increased coordination of implementation efforts, and a shift to equitable and inclusive opioid agonist therapy initiation pathways are needed across the U.S. and Canada.

Opioid Overdose After Medication for Opioid Use Disorder Initiation Following Hospitalization or ED Visit

Importance

Hospitalizations related to opioid use disorder (OUD) represent an opportunity to initiate medication for OUD (MOUD).

Objective

To assess whether starting MOUD after a hospitalization or emergency department (ED) visit is associated with the odds of fatal and nonfatal opioid overdose at 6 and 12 months.

Design, Setting, and Participants

This population-based cohort study used data from the Oregon Comprehensive Opioid Risk Registry, which links all payer claims data to other administrative health datasets, for individuals aged 18 years or older who had diagnosis codes related to OUD recorded at an index ED visit or hospitalization from January 2017 to December 2019. Data were analyzed between May 2023 and January 2024.

Exposures

Receipt of MOUD within the 7 days after an OUD-related hospital visit.

Main Outcomes and Measures

The primary outcome was fatal or nonfatal overdose at 6 and 12 months after discharge. Sample characteristics, including age, sex, insurance plan, number of comorbidities, and opioid-related overdose events, were stratified by receipt or nonreceipt of MOUD within 7 days after an OUD-related hospital visit. A logistic regression model was used to investigate the association between receipt of MOUD and having an opioid overdose event.

Results

The study included 22 235 patients (53.1% female; 25.0% aged 25-39 years) who had an OUD-related hospital visit during the study period. Overall, 1184 patients (5.3%) received MOUD within 7 days of their ED visit or hospitalization. Of these patients, 683 (57.7%) received buprenorphine, 463 (39.1%) received methadone, and 46 (3.9%) received long-acting injectable naltrexone. Patients who received MOUD within 7 days after discharge had lower adjusted odds of fatal or nonfatal overdose at 6 months compared with those who did not (adjusted odds ratio [AOR], 0.63; 95% CI, 0.41-0.97). At 12 months, there was no difference in adjusted odds of fatal or nonfatal overdose between these groups (AOR, 0.79; 95% CI, 0.58-1.08). Patients had a lower risk of fatal or nonfatal overdose at 6 months associated with buprenorphine use (AOR, 0.50; 95% CI, 0.27-0.95) but not with methadone use (AOR, 0.57; 95% CI, 0.28-1.17).

Conclusions and Relevance

In this cohort study of individuals with an OUD-related hospital visit, initiation of MOUD was associated with reduced odds of opioid-related overdose at 6 months. Hospitals should consider implementing programs and protocols to offer initiation of MOUD to patients with OUD who present for care.

Barriers and Best Practices on the Management of Opioid Use Disorder

Opioids refer to chemicals that agonize opioid receptors in the body resulting in analgesia and sometimes, euphoria. Opiates include morphine and codeine; semi-synthetic opioids include heroin, hydrocodone, oxycodone, and buprenorphine; and fully synthetic opioids include tramadol, fentanyl and methadone. In 2021, an estimated 5.6 million individuals met criteria for opioid use disorder. This article provides an overview of the pharmacology of heroin and non-prescription fentanyl (NPF) and its synthetic analogues, and summarizes the literature related to the management of opioid use disorder, overdose, and withdrawal. This is followed by a description of barriers to treatment and best practices for management with a discussion on recent updates and their potential impact on this patient population. This is followed by a description of barriers to treatment and best practices for management with a discussion on recent updates and their potential impact on this patient population.

Addressing buprenorphine supply barriers: A guidance commentary

The current supply-side constraints limiting buprenorphine availability at pharmacies may reduce the potential impact of recent initiatives to improve medications for opioid use disorder (MOUD) access. The recent opioid litigation combined with existing federal regulation and enforcement has resulted in significant restrictions to the distribution and dispensing practices of pharmaceutical wholesalers and pharmacies countrywide. Previously discussed solutions to these problems do not seem to have produced actionable improvements to the current landscape. However, a novel solution to this problem may exist in the form of a Drug Enforcement Administration (DEA) guidance letter. These guidance letters allow the DEA to communicate directly to registrants, providing detailed interpretation and clarity regarding the DEA's expectations and enforcement realities. Recently, the DEA guidance letter portal was used to remind registrants that the DEA does not create quantitative thresholds or volume limits on controlled substance distribution. An additional guidance letter could be issued to ease the concerns about liability connected to the distribution and dispensing of buprenorphine. In particular, this guidance could acknowledge certain terms of the distributor settlement agreement as legal precedent and clarify that buprenorphine is not subject to the same restriction as other defined "highly diverted" controlled substances. Such guidance may also serve to provide both pharmaceutical wholesalers and pharmacies with assurance that an increase in buprenorphine distribution would not directly result in increased DEA scrutiny. This strategy represents an actionable step toward the goal of providing better access to MOUD by reducing existing supply-side limitations.

Accessing perinatal substance use disorder care in your local community: A case study of an innovative hub and spoke network in western North Carolina

INTRODUCTION

The incidence of substance use disorders (SUD) in the general population and in the pregnant person population has risen over the last 20 years. Concurrently, both perinatal and SUD care in rural areas is laden with access barriers including but not limited to geographical distance from potential treatment and stigma. An integrated outpatient perinatal substance use disorder (PSUD) clinic in an urban area in western North Carolina (WNC) found that patients who traveled further for prenatal care were less likely to continue seeking care in the postpartum period. Acknowledging that the risk of overdose increases in the postpartum period, the PSUD clinic utilized a hub and spoke model to promote healthcare accessibility.

METHODS

The clinic adapted the Vermont hub and spoke model and the CHARM (Children and Recovering Mothers) collaborative. The urban hub in WNC has now developed eight spokes in rural communities. The hub provides education and technical assistance to the rural spokes, and the two engage in bidirectional referral pathways. This manuscript details the model and analyzes the existing strengths and barriers at two spokes, a family medicine Federally Qualified Health Center and a hospital affiliated obstetrics and gynecology practice and analyzes their process of implementation of integrated outpatient perinatal substance use care.

RESULTS

Both spokes found coaching relationships and the sharing of resources such as clinical guidelines useful to begin prescribing buprenorphine for PSUD. Their context led one spoke to begin prescribing within one year while the other took two years.

CONCLUSION

Comparing and contrasting these spokes serves to demonstrate that across many contexts, a hub and spoke model is a replicable intervention for rural perinatal substance use access to care barriers. Comparing the two spokes emphasizes the need for adaptation as well as standardization of the model to improve evidence-based PSUD care most effectively.

A Brief Online Training to Address Pharmacists' Willingness to Dispense Buprenorphine

BACKGROUND

The recent passage of the Mainstreaming Addiction Treatment (MAT) Act could increase the number of patients seeking to fill buprenorphine prescriptions at community pharmacies; however, multiple barriers limit community pharmacists' ability and willingness to dispense buprenorphine. We assess whether a brief online buprenorphine training program (Buprenorphine Understanding in the Pharmacy Environment) improves community pharmacists' outcomes, including willingness to dispense buprenorphine.

METHODS

A convenience sample of practicing community pharmacists participated in a 30-minute buprenorphine training. The training was codeveloped with pharmacy advisors and presented solutions to common buprenorphine dispensing barriers. Participants completed a pretest and posttest that assessed their buprenorphine knowledge (5 multiple-choice items based on training content), self-efficacy to engage in various buprenorphine-related behaviors (7 items), buprenorphine attitudes (8 items), and willingness to dispense buprenorphine to 4 different types of customers. Descriptive statistics were calculated, and paired-samples t tests were used to evaluate the impact of the training on pharmacist outcomes.

RESULTS

Of 266 individuals who accessed the pretest, 104 responses were included in the analysis (response rate, 39%). Buprenorphine Understanding in the Pharmacy Environment improved pharmacists' mean buprenorphine knowledge scores (pretest, 2.2; posttest, 3.5; P < 0.001), all 7 self-efficacy items (all P < 0.001), mean buprenorphine attitudes (pretest, 3.1; posttest, 3.4; P < 0.001), and willingness to dispense to all four types of buprenorphine customers (all P < 0.01).

CONCLUSIONS

A brief buprenorphine training increased pharmacists' willingness to dispense buprenorphine. Although generalizability of the results may be limited by use of a convenience sample, our pharmacist-oriented training showed promising results and may be an important step in increasing availability of buprenorphine in community pharmacies.