Cost-Effectiveness of Intranasal Naloxone Distribution to High-Risk Prescription Opioid Users

The use of health utility in cost-utility analysis: A systematic review in substance use disorders

BACKGROUND AND AIM

We aim to identify within-trial and modelled Cost-Utility Analysis (CUA) in substance use disorders (SUD) and review the applicability assessment associated with health utility used in modelled CUA.

STUDY DESIGN AND METHODS

We searched Medline, Embase, EconLit and the Pharmaceutical Benefits Advisory Committee (PBAC) databases. A global systematic literature search was undertaken to determine the CUA of SUD interventions. Key characteristics of the studies and use of health utility were described. The applicability assessment associated with health utility used in modelled CUA was reviewed using The Health Utility Application Tool (HAT).

RESULTS

The final review retrieved 49 CUA (14 within-trial and 35 modelled CUA). Three major health utility measurements were used - standard gamble, EQ-5D-5L and SF-6D. EQ-5D-5L was mainly used in within-trial CUA, whereas standard gamble, EQ-5D-5L and SF-6D were equally cited in modelled CUA and within-trial CUA. Twenty-nine articles using modelled CUA citing health utilities from published literature were assessed. Only half and one-third of CUA studies described the type of quality-of-life measure and value sets used in health utility studies, respectively. Only two-thirds showed the authors addressed questions about the similarities in clinical conditions, and health state description between health utility studies and economic evaluation studies.

CONCLUSION

Justifications for chosen health utilities in modelled CUA studies were mostly absent in SUD. We suggested health economists use the HAT to make judgements when assessing health utility from published estimates. The use of this tool will increase the reliability of economic evaluation carried out to assist government and policymakers in making informed decisions around health topics.

Analyzing quality of life among people with opioid use disorder from the National Institute on Drug Abuse Data Share initiative: implications for decision making

PURPOSE

We aimed to estimate health state utility values (HSUVs) for the key health states found in opioid use disorder (OUD) cost-effectiveness models in the published literature.

METHODS

Data obtained from six trials representing 1,777 individuals with OUD. We implemented mapping algorithms to harmonize data from different measures of quality of life (the SF-12 Versions 1 and 2 and the EQ-5D-3 L). We performed a regression analysis to quantify the relationship between HSUVs and the following variables: days of extra-medical opioid use in the past 30 days, injecting behaviors, treatment with medications for OUD, HIV status, and age. A secondary analysis explored the impact of opioid withdrawal symptoms.

RESULTS

There were statistically significant reductions in HSUVs associated with extra-medical opioid use (-0.002 (95% CI [-0.003,-0.0001]) to -0.003 (95% CI [-0.005,-0.002]) per additional day of heroin or other opiate use, respectively), drug injecting compared to not injecting (-0.043 (95% CI [-0.079,-0.006])), HIV-positive diagnosis compared to no diagnosis (-0.074 (95% CI [-0.143,-0.005])), and age (-0.001 per year (95% CI [-0.003,-0.0002])). Parameters associated with medications for OUD treatment were not statistically significant after controlling for extra-medical opioid use (0.0131 (95% CI [-0.0479,0.0769])), in line with prior studies. The secondary analysis revealed that withdrawal symptoms are a fundamental driver of HSUVs, with predictions of 0.817 (95% CI [0.768, 0.858]), 0.705 (95% CI [0.607, 0.786]), and 0.367 (95% CI [0.180, 0.575]) for moderate, severe, and worst level of symptoms, respectively.

CONCLUSION

We observed HSUVs for OUD that were higher than those from previous studies that had been conducted without input from people living with the condition.

A pilot study surveying the impact of pharmacist-led counseling on naloxone dispensing

OBJECTIVE

The purpose of this study was to evaluate the impact of pharmacist counseling on patients purchasing naloxone and to highlight reasons for naloxone purchase refusal.

DESIGN

A multisite study that was conducted from September 15, 2022, to January 11, 2023.

SETTING

Independent community pharmacies.

PATIENTS/PARTICIPANTS

Fifty patients met inclusion criteria. Data collected included demographics, preintervention knowledge assessment, post-intervention naloxone purchase, and reasons for naloxone refusal.

OUTCOME MEASURES

The primary outcome was naloxone purchase after pharmacist education intervention. The secondary outcome was reasons for naloxone purchase refusal.

RESULTS

The primary outcome showed that 60 percent of patients purchased naloxone after pharmacist intervention. As a secondary outcome, the number of patients who refused to purchase naloxone was 20 percent, with the majority of patients expressing that naloxone was not necessary as a reason for refusal.

CONCLUSION

More studies are needed in order to conclude the impact of pharmacist education on the increasing purchase of naloxone.

An economic evaluation of community pharmacy-dispensed naloxone in Canada

Aims

To determine the cost-effectiveness of pharmacy-based intranasal (IN) and intramuscular (IM) naloxone distribution in Canada.

Methods

We developed a state-transition model for pharmacy-based naloxone distribution, every 3 years, to illicit, prescription, opioid-agonist therapy and nonopioid use populations compared to no naloxone distribution. We used a monthly cycle length, lifetime horizon and a Canadian provincial Ministry of Health perspective. Transition probabilities, cost and utility data were retrieved from the literature. Costs (2020) and quality-adjusted life years (QALY) were discounted 1.5% annually. Microsimulation, 1-way and probabilistic sensitivity analyses were conducted.

Results

Distribution of naloxone to all Canadians compared to no distribution prevented 151 additional overdose deaths per 10,000 persons, with an incremental cost-effectiveness ratio (ICER) of $50,984 per QALY for IM naloxone and an ICER of $126,060 per QALY for IN naloxone. Distribution of any naloxone to only illicit opioid users was the most cost-effective. One-way sensitivity analysis showed that survival rates for illicit opioid users were most influenced by the availability of either emergency medical services or naloxone.

Conclusion

Distribution of IM and IN naloxone to all Canadians every 3 years is likely cost-effective at a willingness-to-pay threshold of $140,000 Canadian dollars/QALY (~3 × gross domestic product from the World Health Organization). Distribution to people who use illicit opioids was most cost-effective and prevented the most deaths. This is important, as more overdose deaths could be prevented through nationwide public funding of IN naloxone kits through pharmacies, since individuals report a preference for IN naloxone and these formulations are easier to use, save lives and are cost-effective. Can Pharm J (Ott) 2024;157:xx-xx.

Naloxone Telephone Outreach Program in an Outpatient Mental Health Clinic: A Quality Improvement Project

Over half of veterans diagnosed with OUD have experienced an overdose leading to hospitalization or death. Naloxone is an opioid receptor antagonist that reverses the effects of opioid overdose. Telephone outreach improves naloxone access in high-risk populations. In June 2022, 47.37% of at-risk veterans in an outpatient facility were prescribed naloxone which was significantly lower than the 65.10% national average of other facilities. The nurse-led intervention team implemented the telephone outreach from June 7, 2022, to September 7, 2022. The naloxone prescription rate for veterans diagnosed with OUD in the facility increased from 47.37% in June 2022 (n = 19) to 82.35% in September 2022. The rate for at-risk veterans increased from 20.0% in June 2022 (n = 90) to 58.24% in September 2022. The telephone outreach exceeded goals and increased the naloxone prescription rates for at-risk veterans at the facility in three months.

Economic Evaluation Design within the HEAL Prevention Cooperative

The rapid rise in opioid misuse, disorder, and opioid-involved deaths among older adolescents and young adults is an urgent public health problem. Prevention is a vital part of the nation's response to the opioid crisis, yet preventive interventions for those at risk for opioid misuse and opioid use disorder are scarce. In 2019, the National Institutes of Health (NIH) launched the Preventing Opioid Use Disorder in Older Adolescents and Young Adults cooperative as part of its broader Helping to End Addiction Long-term (HEAL) Initiative ( https://heal.nih.gov/ ). The HEAL Prevention Cooperative (HPC) includes ten research projects funded with the goal of developing effective prevention interventions across various settings (e.g., community, health care, juvenile justice, school) for older adolescent and young adults at risk for opioid misuse and opioid use disorder (OUD). An important component of the HPC is the inclusion of an economic evaluation by nine of these research projects that will provide information on the costs, cost-effectiveness, and sustainability of these interventions. The HPC economic evaluation is integrated into each research project's overall design with start-up costs and ongoing delivery costs collected prospectively using an activity-based costing approach. The primary objectives of the economic evaluation are to estimate the intervention implementation costs to providers, estimate the cost-effectiveness of each intervention for reducing opioid misuse initiation and escalation among youth, and use simulation modeling to estimate the budget impact of broader implementation of the interventions within the various settings over multiple years. The HPC offers an extraordinary opportunity to generate economic evidence for substance use prevention programming, providing policy makers and providers with critical information on the investments needed to start-up prevention interventions, as well as the cost-effectiveness of these interventions relative to alternatives. These data will help demonstrate the valuable role that prevention can play in combating the opioid crisis.

Updated Estimates of Annual U.S. Health System Spending from a Hypothetical National Naloxone Co-Prescribing Mandate

Background: Naloxone-prescription opioid co-prescribing mandates have increasingly been proposed and adopted in the U.S., at both the national and state levels, as a public health intervention for mitigating the impacts of opioid overdoses. In this study, we assess whether a hypothetical national, naloxone co-prescribing mandate has become less costly for the U.S. health system since 2018. Methods: We expand and update an existing economic model of naloxone co-prescribing to estimate annual health system spending. We refresh the model inputs through 2021 to reflect changes to the opioid and naloxone landscapes, expand the model to account for more types of market responses, and develop additional scenarios around alternate implementation strategies such as bulk purchasing. Results: We estimate annual spending increases across all retail opioid patients of $1.4-$4.0 billion with naloxone nasal sprays and auto-injectors, and $0.6-$0.9 billion with traditional injectable naloxone formulations. We also find that bulk purchasing could lead to higher spending increases in some patient populations absent volume discounts. Conclusions: Our estimates are substantially lower than prior research. Key drivers include lower prices for naloxone, higher current naloxone distribution, a longer approved shelf life for naloxone, and lower estimated sizes for some patient populations. Additional research is needed to estimate the potential benefits of naloxone co-prescribing for mitigating opioid overdoses, and whether they could outweigh spending increases. Steps that could make this policy more beneficial or less costly include targeting higher risk patient populations and promoting large-scale purchasing agreements with volume discounts to help offset potential price increases.

Organizational Readiness to Implement Community Pharmacy-Based Opioid Counseling and Naloxone Services: A Scoping Review of Current Practice Models and Opportunities

The purpose of this study was to explore existing practice models and opportunities surrounding community pharmacist-delivered opioid counseling and naloxone (OCN) services in the U.S., with the goal of enhancing organizational readiness and improving patient access. A scoping literature review was conducted. English-language articles published in peer-reviewed journals from January 2012-July 2022 were sought via PubMed, CINAHL, IPA, and Google Scholar using permutations of terms such as "pharmacist/pharmacy", "opioid/opiate", "naloxone", "counseling", and "implement/implementation". Original articles reporting the resources/inputs (personnel; pharmacist full-time equivalents; facilities and expenses; in-house versus outsourced personnel), implementation processes (legal source of pharmacist authority; patient identification strategies; intervention procedures; workflow strategies; business operations), and programmatic outcomes (uptake and delivery; interventions made; economic impact; patient or provider satisfaction) of pharmacist-delivered OCN services in community (retail) settings were retained. Twelve articles describing ten unique studies were included. The studies primarily used quasi-experimental designs and were published from 2017 to 2021. The articles described seven broad program elements/themes: interprofessional collaboration (n = 2); patient education format including one-on-one patient education (n = 12) and group education sessions (n = 1); non-pharmacist provider education (n = 2); pharmacy staff education (n = 8); opioid misuse screening tools (n = 7); naloxone recommendation/dispensing (n = 12); and opioid therapy and pain management (n = 1). Pharmacists screened/counseled 11-2716 patients and provided 11-430 doses of naloxone. Limited implementation costs, patient/provider satisfaction, or economic impact measures were reported. This review may serve as a guide for community pharmacists in implementing OCN services in their own practices. Future studies should clarify OCN program implementation costs, patient/provider satisfaction, and the economic impact.

Comparing Projected Fatal Overdose Outcomes and Costs of Strategies to Expand Community-Based Distribution of Naloxone in Rhode Island

Importance

In 2021, the state of Rhode Island distributed 10 000 additional naloxone kits compared with the prior year through partnerships with community-based organizations.

Objective

To compare various strategies to increase naloxone distribution through community-based programs in Rhode Island to identify one most effective and efficient strategy in preventing opioid overdose deaths (OODs).

Design, Setting, and Participants

In this decision analytical model study conducted from January 2016 to December 2022, a spatial microsimulation model with an integrated decision tree was developed and calibrated to compare the outcomes of alternative strategies for distributing 10 000 additional naloxone kits annually among all individuals at risk for opioid overdose in Rhode Island.

Interventions

Distribution of 10 000 additional naloxone kits annually, focusing on people who inject drugs, people who use illicit opioids and stimulants, individuals at various levels of risk for opioid overdose, or people who misuse prescription opioids vs no additional kits (status quo). Two expanded distribution implementation approaches were considered: one consistent with the current spatial distribution patterns for each distribution program type (supply-based approach) and one consistent with the current spatial distribution of individuals in each of the risk groups, assuming that programs could direct the additional kits to new geographic areas if required (demand-based approach).

Main Outcomes and Measures

Witnessed OODs, cost per OOD averted (efficiency), geospatial health inequality measured by the Theil index, and between-group variance for OOD rates.

Results

A total of 63 131 simulated individuals were estimated to be at risk for opioid overdose in Rhode Island based on current population data. With the supply-based approach, prioritizing additional naloxone kits to people who use illicit drugs averted more witnessed OODs by an estimated mean of 18.9% (95% simulation interval [SI], 13.1%-30.7%) annually. Expanded naloxone distribution using the demand-based approach and focusing on people who inject drugs had the best outcomes across all scenarios, averting an estimated mean of 25.3% (95% SI, 13.1%-37.6%) of witnessed OODs annually, at the lowest mean incremental cost of $27 312 per OOD averted. Other strategies were associated with fewer OODs averted at higher costs but showed similar patterns of improved outcomes and lower unit costs if kits could be reallocated to areas with greater need. The demand-based approach reduced geospatial inequality in OOD rates in all scenarios compared with the supply-based approach and status quo.

Conclusions and Relevance

In this decision analytical model study, variations in the effectiveness, efficiency, and health inequality of the different naloxone distribution expansion strategies and approaches were identified. Future efforts should be prioritized for people at highest risk for overdose (those who inject drugs or use illicit drugs) and redirected toward areas with the greatest need. These findings may inform future naloxone distribution priority settings.

The role of increasing pharmacy and community distributed naloxone in the opioid overdose epidemic in Massachusetts, Rhode Island, and New York City

Background

Naloxone distributed to people at risk for opioid overdose has been associated with reduced overdose death rates; however, associations of retail pharmacy-distributed naloxone with overdose mortality have not been evaluated.

Methods

Our analytic cohort uses retail pharmacy claims data; three health departments' community distribution data; federal opioid overdose data; and American Community Survey data. Data were analyzed by 3-digit ZIP Code and calendar quarter-year (2016Q1-2018Q4), and weighted by population. We regressed opioid-related overdose mortality on retail-pharmacy and community naloxone distribution, and community-level demographics using a linear model, hypothesizing that areas with high overdose rates would have higher current levels of naloxone distribution but that increasing naloxone distribution from one quarter to the next would be associated with lower overdose.

Results

From Q1-2016 to Q4-2018, the unadjusted naloxone distribution rate increased from 97 to 257 kits per 100,000 persons, while the unadjusted opioid overdose mortality rate fell from 8.1 to 7.2 per 100,000 persons. The concurrent level of naloxone distribution (both pharmacy and community) was positively and significantly associated with fatal opioid overdose rates. We did not detect associations between change in naloxone distribution rates and overdose mortality.

Conclusion

Naloxone distribution volumes were correlated with fatal opioid overdose, suggesting medication was getting to communities where it was needed most. Amid high rates of overdose driven by fentanyl in the drug supply, our findings suggest additional prevention, treatment, and harm reduction interventions are required-and dramatically higher naloxone volumes needed-to reverse the opioid overdose crisis in the US.

Community Distribution of Naloxone: A Systematic Review of Economic Evaluations

BACKGROUND

As a core component of harm-reduction strategies to address the opioid crisis, several countries have instituted publicly funded programs to distribute naloxone for lay administration in the community. The effectiveness in reducing mortality from opioid overdose has been demonstrated in multiple systematic reviews. However, the economic impact of community naloxone distribution programs is not fully understood.

OBJECTIVES

Our objective was to conduct a review of economic evaluations of community distribution of naloxone, assessing for quality and applicability to diverse contexts and settings.

DATA SOURCES

The search strategy was performed on MEDLINE, Embase, and EconLit databases.

STUDY ELIGIBILITY CRITERIA AND INTERVENTIONS

Search criteria were developed based on two themes: (1) papers involving naloxone or narcan and (2) any form of economic evaluation. A focused search of the grey literature was also conducted. Studies exploring the intervention of community distribution of naloxone were selected.

STUDY APPRAISAL AND SYNTHESIS METHODS

Data extraction was done using the British Medical Journal guidelines for economic submissions, assigning quality levels based on the impact of the missing or unclear components on the strength of the conclusions.

RESULTS

A total of nine articles matched our inclusion criteria: one cost-effectiveness analysis, eight cost-utility analyses, and one cost-benefit analysis. Overall, the quality of the studies was good (six of high quality, two of moderate quality, and one of low quality). All studies concluded that community distribution of naloxone was cost effective, with an incremental cost-utility ratio range of $US111-58,738 (year 2020 values) per quality-adjusted life-year gained.

LIMITATIONS

Our search strategy was developed iteratively, rather than following an a priori design. Additionally, our search was limited to English terms.

CONCLUSIONS AND IMPLICATIONS OF KEY FINDINGS

Based on this review, community distribution of naloxone is a worthwhile investment and should be considered by other countries dealing with the opioid epidemic.

Take-Home Naloxone and the Prevention of Deaths from Heroin Overdose: Pursuing Strong Science, Fuller Understanding, Greater Impact

BACKGROUND AND CONTEXT

Realization of the life-saving potential of "take-home naloxone" has been a personal journey, but it has also been a collective journey. It has been a story of individual exploration and growth, and also a story of changes at a societal level. "Take-home naloxone" has matured since its first conceptualization a quarter of a century ago. It required recognition of the enormous burden of deaths from drug overdose (particularly heroin and other opioids), and also realization of critical clusterings (such as post-release from prison). It also required realization that, since many overdose deaths are witnessed, we can potentially prevent many deaths by mobilizing drug users themselves, their families, and the wider caring community to act as intervention workforce to give life-saving interim emergency care. Summary of Scope: This article explores 5 areas (many illustrations UK-based where the author works): firstly, the need for strong science; secondly, our improved understanding of opioid overdose and deaths; thirdly, the search for greater impact from our policies and interventions; fourthly, developing better forms of naloxone; and fifthly, examining the challenges still to be addressed.

KEY MESSAGES

"Take-home naloxone" is an exemplar of harm reduction with potential global impact - drug policy and practice for the public good. However, "having the potential" is not good enough - there needs to be actual implementation. This will be easier once the component parts of "take-home naloxone" are improved (better naloxone products, better training aids, revised legislation, and explicit funding support). Many improvements are already possible, but we hesitate about implementation. It is our responsibility to drive progress faster. With "take-home naloxone," we can be proud of what we have achieved, but we must also be humble about how much more we still need to do.

Opioid risk screening: Program evaluation from the community pharmacists' perspective

BACKGROUND

Pharmacist-implemented screening programs can be improved through continuous program evaluation. Pharmacists are in a position to determine whether interventions are realistic and efficacious when used in practice.

OBJECTIVE

The purpose of this study is to evaluate how community pharmacists perceive the use of an opioid risk screening for patients receiving opioid prescriptions and the associated implications for improved patient-centered care.

METHODS

North Dakota community pharmacists received training on the use of an opioid risk tool for all patients filling an opioid prescription to evaluate for opioid misuse and overdose risk potential. Pharmacists then implemented the screening in their community pharmacy to screen all patients prescribed an opioid. Six months after implementation, pharmacists across the state were surveyed regarding their perception of the value of screening patients for the risk of opioid misuse and overdose. The survey questions used the Joint Committee on Standards for Educational Evaluation focusing on utility, propriety, feasibility, and accuracy.

RESULTS

All pharmacists (n = 35) indicated the opioid risk screening improved patient communication and patient-centered interventions. A total of 97% of pharmacists agreed the opioid screening tool provided an objective measure in providing care to patients and improved the potential for patient safety during prescription opioid use. Although 66% of pharmacists disagreed that the screening process was time consuming, 14% of respondents agreed with this statement indicating they may require additional assistance to optimize their workflow.

CONCLUSION

The results of this study support that opioid risk screening ensures utility for opioid risk stratification, feasibility to incorporate into existing workflow, and propriety for patient safety and well-being.

Targeting community-based naloxone distribution using opioid overdose death rates: A descriptive analysis of naloxone rescue kits and opioid overdose deaths in Massachusetts and Rhode Island

BACKGROUND

Rates of fatal opioid overdose in Massachusetts (MA) and Rhode Island (RI) far exceed the national average. Community-based opioid education and naloxone distribution (OEND) programs are effective public health interventions to prevent overdose deaths. We compared naloxone distribution and opioid overdose death rates in MA and RI to identify priority communities for expanded OEND.

METHODS

We compared spatial patterns of opioid overdose fatalities and naloxone distribution through OEND programs in MA and RI during 2016 to 2019 using public health department data. The county-level ratio of naloxone kits distributed through OEND programs per opioid overdose death was estimated and mapped to identify potential gaps in naloxone availability across geographic regions and over time.

RESULTS

From 2016 to 2019, the statewide community-based naloxone distribution to opioid overdose death ratio improved in both states, although more rapidly in RI (from 11.8 in 2016 to 35.6 in 2019) than in MA (from 12.3 to 17.2), driven primarily by elevated and increasing rates of naloxone distribution in RI. We identified some urban/non-urban differences, with higher naloxone distribution relative to opioid overdose deaths in more urban counties, and we observed some counties with high rates of overdose deaths but low rates of naloxone kits distributed through OEND programs.

CONCLUSIONS

We identified variations in spatial patterns of opioid overdose fatalities and naloxone availability, and these disparities appeared to be widening in some areas over time. Data on the spatial distribution of naloxone distribution and opioid overdose deaths can inform targeted, community-based naloxone distribution strategies that optimize resources to prevent opioid overdose fatalities.

Investigating Community Pharmacy Take Home Naloxone Dispensing during COVID-19: The Impact of One Public Health Crisis on Another

A recent report found that the number of opioid-related deaths in Ontario in the first 15 weeks of the COVID-19 pandemic was 38.2% higher than in the 15 weeks before the pandemic. Our study sought to determine if pharmacy professionals self-reported an increase or decrease in naloxone provision due to the pandemic and to identify adjustments made by pharmacy professionals to dispense naloxone during the pandemic. A total of 231 Ontario community pharmacy professionals completed an online survey. Pharmacy professionals' barriers, facilitators, and comfort level with dispensing naloxone before and during the pandemic were identified. The sample consisted of mostly pharmacists (99.1%). Over half (51.1%) reported no change in naloxone dispensing, while 22.9% of respondents reported an increase and 24.7% a decrease. The most common adjustments made during the pandemic were training patients how to administer naloxone over video or phone, delivering naloxone kits, and pharmacy technicians offering naloxone at prescription intake. Over half (55%) of participants said the top barrier for dispensing was that patients did not request naloxone. Naloxone distribution through pharmacies could be further optimized to address the increased incidence of overdose deaths during the pandemic. Future research should investigate the reasons for changes in naloxone dispensing.

A qualitative study of a publicly funded pharmacy-dispensed naloxone program

AIMS

To characterize the experiences of individuals accessing pharmacy-based naloxone and relate these experiences to the risk environments and discourses in which they are embedded.

METHODS

We conducted a qualitative study using in-depth interviews of 37 adults aged 18 years and over who had accessed pharmacy-dispensed naloxone. Participants were recruited from across Ontario, Canada, and comprised individuals taking opioids for chronic pain, those taking opioids for reasons other than chronic pain, and individuals acquiring naloxone to act as bystanders in an opioid overdose setting. We drew upon risk environment theory to interpret participants' accounts.

RESULTS

Following analysis and interpretation, we generated five theoretically-informed themes characterizing the experiences of individuals accessing pharmacy-dispensed naloxone: 'intersection of naloxone narrative with pharmacy environment', 'individual risk environment and pharmacy-dispensed naloxone uptake', 'safe spaces: creating an enabling environment for pharmacy-dispensed naloxone', 'individuation: becoming a first responder' and 'beyond naloxone: the macro risk environment'. Specifically, participants described how judgement and stereotyping associated with the broader naloxone narrative can be amplified in the space of the pharmacy, leading to fears of reprisals and strategies to mitigate social risk. In addition, the social construction of naloxone as a drug for 'problematic' opioid use and a lack of pharmacist awareness regarding the risk environments in which opioid use occurs was perceived to limit opportunities for optimizing naloxone distribution and training. Finally, participants described approaches that could create enabling environments in the space of the pharmacy while remaining cognizant of the structural changes required in the macro risk environments of people who take opioids.

CONCLUSIONS

Despite increasing the availability of naloxone, participants characterized several social and environmental factors that could limit the accessibility of the drug from pharmacies. Strategies to address these factors could create enabling environments within pharmacies that optimize the reach and impact of pharmacy-dispensed naloxone.

Cost-Effectiveness of an Opioid Abuse-Prevention Program Using the Narcotics Information Management System in South Korea

OBJECTIVES

To assess the cost-effectiveness of an opioid abuse-prevention program embedded in the Narcotics Information Management System ("the Network System to Prevent Doctor-Shopping for Narcotics") in South Korea.

METHODS

Using a Markov model with a 1-year cycle length and 30-year time horizon, we estimated the incremental cost-utility ratio (ICUR) of implementing an opioid abuse-prevention program in patients prescribed outpatient opioids from a Korean healthcare payer's perspective. The model has 6 health states: no opioid use, therapeutic opioid use, opioid abuse, overdose, overdose death, and all-cause death. Patient characteristics, healthcare costs, and transition probabilities were estimated from national population-based data and published literature. Age- and sex-specific utilities of the general Korean population were used for the no-use state, whereas the other health-state utilities were obtained from published studies. Costs (in 2019 US dollars) included the expenses of the program, opioids, and overdoses. An annual 5% discount rate was applied to the costs and quality-adjusted life-years (QALYs). Parameter uncertainties were explored via deterministic and probabilistic sensitivity analyses.

RESULTS

The program was associated with 2.27 fewer overdoses per 100 000 person-years, with an ICUR of $227/QALY. The ICURs were generally robust to parameter changes, although the program's effect on abuse reduction was the most influential parameter. Probabilistic sensitivity analysis showed that the program reached a 100% probability of cost-effectiveness at a willingness-to-pay threshold of $900/QALY.

CONCLUSIONS

The opioid abuse-prevention program appears to be cost-effective in South Korea. Mandatory use of the program should be considered to maximize clinical and economic benefits of the program.

Economic burden of opioid crisis and the role of pharmacist-led interventions

Opioids are often used to treat pain and improve function. Canada and the United States are one of the highest users of opioids per capita worldwide and are experiencing the devastating consequences of the opioid crisis. The objectives of this commentary are 2-fold: first, highlight the economic burden of the opioid crisis in the United States and Canada; second, define the role of pharmacists to address this crisis. A body of literature delineates the cost of this crisis to health care system, lost productivity, and law enforcement. Contemporary data indicate that the economic burden of the opioid crisis was $78.5 billion and $3.5 billion in the United States and Canada, respectively. Community pharmacists are often the first health care providers who identify issues with opioid prescriptions, signs of misuse, abuse, and diversion. Contemporary studies highlight their critical role to address this crisis by ensuring the safe and appropriate use of opioids, which can decrease morbidity, mortality, use of health services and societal resources, and costs. The expanding scope of practice and the amendment of existing regulations and legislations have the potential to maximize the contribution of pharmacists to address this crisis. Pharmacists should be reimbursed for the services they provide to be sustainable.

The Opioid-overdose Reduction Continuum of Care Approach (ORCCA): Evidence-based practices in the HEALing Communities Study

BACKGROUND

The number of opioid-involved overdose deaths in the United States remains a national crisis. The HEALing Communities Study (HCS) will test whether Communities That HEAL (CTH), a community-engaged intervention, can decrease opioid-involved deaths in intervention communities (n = 33), relative to wait-list communities (n = 34), from four states. The CTH intervention seeks to facilitate widespread implementation of three evidence-based practices (EBPs) with the potential to reduce opioid-involved overdose fatalities: overdose education and naloxone distribution (OEND), effective delivery of medication for opioid use disorder (MOUD), and safer opioid analgesic prescribing. A key challenge was delineating an EBP implementation approach useful for all HCS communities.

METHODS

A workgroup composed of EBP experts from HCS research sites used literature reviews and expert consensus to: 1) compile strategies and associated resources for implementing EBPs primarily targeting individuals 18 and older; and 2) determine allowable community flexibility in EBP implementation. The workgroup developed the Opioid-overdose Reduction Continuum of Care Approach (ORCCA) to organize EBP strategies and resources to facilitate EBP implementation.

CONCLUSIONS

The ORCCA includes required and recommended EBP strategies, priority populations, and community settings. Each EBP has a "menu" of strategies from which communities can select and implement with a minimum of five strategies required: one for OEND, three for MOUD, and one for prescription opioid safety. Identification and engagement of high-risk populations in OEND and MOUD is an ORCCArequirement. To ensure CTH has community-wide impact, implementation of at least one EBP strategy is required in healthcare, behavioral health, and criminal justice settings, with communities identifying particular organizations to engage in HCS-facilitated EBP implementation.