An overview of take-home naloxone programs in Australia

A call for compassionate opioid overdose response

High dose and long-acting opioid overdose reversal drugs can precipitate withdrawal in people who are opioid dependent. Products recently brought to market for community use in the United States (US) have drawn international concern because of their increased risk of withdrawal. At the March 18-19, 2024, Compassionate Overdose Response Summit & Naloxone Dosing Meeting, a panel of harm reduction experts issued the following call to action: 1) people who use drugs should be directly involved in decisions regarding the research, development, selection, and distribution of opioid overdose reversal products; 2) regulatory agencies and pharmaceutical manufacturers should carefully consider and communicate the risk and duration of withdrawal associated with higher dose and longer-acting opioid antagonists; 3) take-home naloxone kits should include at least two doses of an intramuscular (IM) product containing 0.4 mg or an intranasal (IN) product containing ≤4 mg; 4) At this time, high dose and long-acting opioid antagonists have no use in acute opioid overdose response; and, 5) overdose response educational materials, instructions on overdose response, and training should emphasize the restoration of breathing, avoiding withdrawal, and compassionate post-overdose support and care. High dose and long-acting opioid overdose reversal drugs were approved without testing for withdrawal and are often aggressively marketed despite decades of evidence from naloxone distribution programs worldwide that the ideal dose of naloxone is one that restores breathing without inducing withdrawal. Government agencies should direct resources to harm reduction programs to make standard dose take-home naloxone products widely available among people who use drugs. Lay bystanders, people who use drugs, their families, and professional first responders can learn and apply a compassionate approach to opioid overdose response.

Naloxone cascade of care among people who regularly inject drugs in Australia, 2020-2022

BACKGROUND

Examining take-home naloxone (THN) uptake using a 'cascade of care' framework could help identify targets for increasing THN training and carriage among people who may witness or experience opioid overdose. We describe the THN cascade and factors associated with engagement among people who inject drugs.

METHODS

People aged ≥18 years in Australia who inject drugs were interviewed from 2020 to 2022, reporting lifetime THN awareness and acquisition and past-month carriage. We examined factors associated with engagement using multivariable logistic regression.

RESULTS

Of 2,149 participants (64 % men, mean age 44.5), 85 % had heard of naloxone, of whom 76 % were aware of THN programs. Of these, 72 % had ever participated in THN training/brief education, 92 % of whom had acquired THN. Of those who had ever acquired THN and reported past-month opioid use, 63 % always/often carried THN when using opioids. Past six-month opioid agonist treatment (OAT) (adjusted odds ratio [AOR] 2.55; 95 %CI 1.91-3.42) and ≥daily injecting (1.32; 1.01-1.73) were associated with awareness. OAT (1.79; 1.38-2.33), past-year opioid overdose (1.68; 1.18-2.42) and older age (1.02; 1.00-1.03) were associated with acquisition. Primarily injecting methamphetamine (versus heroin) in the past month was associated with lower awareness (0.43; 0.31-0.58) and acquisition (0.59; 0.44-0.78). Reporting no accommodation (squatting/sleeping rough) was associated with reduced odds of carriage (0.46; 0.24-0.88).

CONCLUSION

Participants reported high THN awareness and acquisition, with lower carriage. Future efforts should focus on improving THN access and reducing barriers to carriage, particularly for people experiencing homelessness or who primarily inject non-opioids.

The National Naloxone Reference Group: A collective voice on take-home naloxone policy and practice in Australia

The National Naloxone Reference Group has played a key role in the development of take-home naloxone programs, policy and practice in Australia. In this commentary we detail the origins of the group, some of its main achievements since its inception and its future directions in light of the major policy changes around naloxone that have recently occurred in Australia.

Advancing the implementation of take-home naloxone by community pharmacists: Testing the role of COM-B

INTRODUCTION

Opioid-related overdose fatalities are rising despite the increased accessibility of take-home naloxone (THN). Targeted implementation strategies are needed to improve the distribution of naloxone. This study investigates the effectiveness of a short video targeting pharmacists that addresses implementation barriers.

METHODS

A pre-post, mixed methods design was adopted to examine the effect of a brief behaviour change intervention (an educational video informed by the capability, opportunity, motivation affecting behaviour (COM-B) model), on factors affecting pharmacists' implementation of THN in Western Australia. Paired samples t-tests for were used to investigate intentions, knowledge, skill, confidence, feasibility, appropriateness, acceptability, attitudes, anticipated patient reactions, social support and implementation climate. Structural equation modelling examined the associations between constructs and to test the proposed mediation of motivation on capability and opportunity affecting intentions to discuss and provide THN.

RESULTS

We analysed data from 102 participants. At follow-up and after all participants had viewed the video, participants had significantly improved intentions, skill, confidence, anticipated reactions, social support and perceptions that THN implementation was feasible, appropriate and acceptable. No significant differences were seen for attitudes, knowledge or implementation climate. The proposed mediation effect of motivation on the associations between opportunity and intentions and capability and intentions was not supported.

DISCUSSION AND CONCLUSIONS

A short video directly targeting identified implementation barriers has the ability to improve key influences in the provision of THN. Dissemination of information to community pharmacists is a challenge. Implementation strategies addressing knowledge and targeting other levels of influence on intentions and behaviour are required.

Mortality risk and causes of death among people who use opioids in a take-home naloxone cohort

BACKGROUND

People who use opioids (PWUO) have an excess mortality from a range of causes. The cumulative effect of behavioral, social, and health risk factors complicates the interpretation of the effects of suitable interventions. This study explores mortality causes among a cohort of PWUO in the take-home naloxone (THN) program.

METHODS

This was a prospective cohort study of PWUO who received THN between 2015 and 2023. Participant data was linked with death registry data. Crude mortality rates and standardized mortality ratios (SMRs) were calculated for all causes, internal causes, and accidental opioid overdoses (AOOs). In addition to age and gender, risk factors like main route of administration, polydrug use, self-experienced overdoses, and using while alone were fitted in a Cox Regression model to explore factors associated with mortality.

RESULTS

The 2194 participants had a considerably higher mortality ratio for all causes investigated when compared to the general population (SMR=10.9, 95 % CI = 9.3,12.6). AOOs were the most prevalent cause of death (49 %). Those who reported frequent opioid use while alone had an elevated risk of dying of 2.6 (95 % CI = 1.1,6.4) compared to those who never used while alone.

CONCLUSIONS

Frequent opioid use while alone was associated with elevated mortality risk, supporting the importance of overdose prevention education with naloxone distribution, and additional efforts to improve environmental and social areas for safer drug-use practices among PWUO. The variety of mortality causes found in this study illustrates the need for multifaceted and targeted interventions for people at risk of overdosing.

Remaking the 'angry Narcanned subject': Affording new subject positions through take-home naloxone training

Naloxone is a medication used to reverse opioid overdose. Alongside its lifesaving effects, it also has a reputation for producing distress, aggression and occasionally violence upon administration. This article analyses how take-home naloxone (THN) training initiatives address naloxone's reputation for producing aggression and conflict, and how new subject positions emerge in the context of this training. While the role of naloxone in producing aggression has been discussed in a range of research, this work emphasises that such conflict is neither inevitable nor even likely because it is contingent on several other issues such as administration practices. Building on this scholarship, we work with Bruno Latour's theorisation of technological 'affordances' to analyse THN as a socially co-produced technology that, rather than either determining or neutrally communicating actions and effects, 'affords' possibilities, capacities and subjects. Analysing data drawn from observations of THN training in Victoria, Australia, and in-depth interviews with training participants, we argue that the issue of conflict upon revival affords a subject position we term the 'angry Narcanned subject'. This subject, we note, has come to hold a powerful position in understandings of naloxone, not least because it tends to accord with stereotypes of antisocial drug users. From here, we argue that a much of THN training is focused on challenging and reframing naloxone's reputation for conflict and questioning related subject positions, especially that of the angry Narcanned subject. We argue that this process of challenging and reframing affords two new subject positions for consumers: the 'capable administrator' and the 'calmer revivee'. We conclude that while THN training affords multiple, potentially positive, subject positions, unless these initiatives are accompanied by broader interventions such as decriminalisation campaigns, they may inadvertently responsibilise people who consume opioids for addressing overdose and erase the role of prohibition, criminalisation and stigmatisation in producing overdose events.

"It can save your life, that's all I know," barriers and facilitators for engagement in take-home naloxone for people receiving opioid substitution treatment in regional Australia: An explorative study

Engagement in take-home naloxone (THN) programs by people receiving opioid substitution treatment (OST) in Australia is low despite methadone being a significant contributor to opioid overdose deaths. Our aim was to explore barriers and facilitators for OST patients to engage in THN. We used a descriptive qualitative design with thematic analysis to gain insight into naloxone uptake by people engaged in an OST program in regional Australia. Eleven participants were interviewed; eight had previously engaged with THN. Barriers to THN included limited knowledge and understanding, lack of information, and not personally experiencing an overdose. Facilitators included having a traumatic experience of overdose, knowledge and understanding of THN and overdose, empowerment in carrying naloxone, and expanding THN programs. Support for the expansion of THN programs is desired among participants, and widespread peer distribution is understood to be the key to success. This study found that prior traumatic experience of overdose facilitates acceptance of THN, and being offered THN was the most important factor in engagement. Less clear is how to engage people who lack a traumatic overdose experience.

Qualitative exploration of public health vending machines in young adults who misuse opioids: A promising strategy to increase naloxone access in a high risk underserved population

Background

Take home naloxone (THN) programs have been shown to effectively reverse opioid overdose events with limited adverse events, yet often miss young adults who use opioids. To identify opportunities for naloxone expansion, we conducted interviews with young adults who had used opioids. We explored young adults' experience with current THN programs, and perspectives on ideal THN programs and emerging naloxone public health vending machine (PHVM) programs shown to increase access to sterile syringes in young adults.

Methods

We interviewed 16 young adults receiving substance treatment services within an integrated safety net healthcare system. Participants were 18-30 years of age with a history of nonmedical prescription opioid use. Interviews obtained the patient perspective of current THN, ideal THN and PHVM programs. Interviews were transcribed and coded by team-based methods. Themes were developed using an inductive-deductive iterative approach and defined through consensus.

Results

Treatment was often the first exposure to naloxone. Participants recommended easy to access programs for ideal naloxone distribution and had overall positive feedback on PHVMs. Three key themes were identified to improve naloxone uptake: knowledge, convenience, and privacy. Participants identified safety, lack of police presence, and low costs as important vending machine features.

Conclusions

Our results identified implementation opportunities to increase naloxone uptake including convenient location and hours, privacy, and using trusted sources of information to improve program awareness. PHVMs present an opportunity to maximize these opportunities and increase access to naloxone in young adults.

A systematic review of the distribution of take-home naloxone in low- and middle-income countries and barriers to the implementation of take-home naloxone programs

BACKGROUND

Opioid overdose epidemic is hitting record highs worldwide, accounting for 76% of mortality related to substance use. Take-home naloxone (THN) strategies are being implemented in many developed countries that suffer from high opioid overdose death rates. They aim to provide overdose identification and naloxone administration training, along with THN delivery to opioid users and others likely to witness an overdose incident such as family members and peers. However, little is known about such measures in low- and middle-income countries (LMIC), where opioid use and opioid-related deaths are reportedly high. This systematic literature review aims to examine the distribution of THN in LMIC, review studies identifying barriers to the implementation of THN programs worldwide, and assess their applicability to LMIC.

METHODS

The literature was searched and analyzed for eligible studies with quality assessment.

RESULTS

Two studies were found from LMIC on THN programs with promising results, and 13 studies were found on the barriers identified in implementing THN programs worldwide. The main barriers to THN strategies were the lack of training of healthcare providers, lack of privileges, time constraints, cost, legislative/policy restrictions, stigma, fear of litigation, and some misperceptions around THN.

CONCLUSIONS

The barriers outlined in this paper are probably applicable to LMIC, but more difficult to overcome considering the differences in their response to opioid overdose, their cultural attitudes and norms, the high cost, the waivers required, the legislative differences and the severe penalties for drug-related offenses in some of these countries. The solutions suggested to counter-act these obstacles can also be more difficult to achieve in LMIC. Further research is required in this area with larger sample sizes to provide a better understanding of the obstacles to the implementation, feasibility, accessibility, and utilization of THN programs in LMIC.

Patient perspectives on naloxone receipt in the emergency department: a qualitative exploration

Background

Emergency departments (EDs) are important venues for the distribution of naloxone to patients at high risk of opioid overdose, but less is known about patient perceptions on naloxone or best practices for patient education and communication. Our aim was to conduct an in-depth exploration of knowledge and attitudes toward ED naloxone distribution among patients who received a naloxone prescription.

Methods

We conducted semi-structured telephone interviews with 25 adult participants seen and discharged from three urban, academic EDs in Philadelphia, PA, with a naloxone prescription between November 2020 and February 2021. Interviews focused on awareness of naloxone as well as attitudes and experiences receiving naloxone in the ED. We used thematic content analysis to identify key themes reflecting patient attitudes and experiences.

Results

Of the 25 participants, 72% had previously witnessed an overdose and 48% had personally experienced a non-fatal overdose. Nineteen participants (76%) self-disclosed a history of substance use or overdose, and one reported receiving an opioid prescription during their ED visit and no history of substance use. In interviews, we identified wide variability in participant levels of knowledge about overdose risk, the role of naloxone in reducing risk, and naloxone access. A subset of participants was highly engaged with community harm reduction resources and well versed in naloxone access and use. A second subset was familiar with naloxone, but largely obtained it through healthcare settings such as the ED, while a final group was largely unfamiliar with naloxone. While most participants expressed positive attitudes about receiving naloxone from the ED, the quality of discussions with ED providers was variable, with some participants not even aware they were receiving a naloxone prescription until discharge.

Conclusions

Naloxone prescribing in the ED was acceptable and valued by most participants, but there are missed opportunities for communication and education. These findings underscore the critical role that EDs play in mitigating risks for patients who are not engaged with other healthcare or community health providers and can inform future work about the effective implementation of harm reduction strategies in ED settings.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12954-022-00677-7.

The Overdose Response with Take Home Naloxone (ORTHN) project: Evaluation of health worker training, attitudes and perceptions

INTRODUCTION

Naloxone is a life-saving medication that reverses opioid overdose; naloxone can be provided on a 'take-home' basis so naloxone can be administered outside of the health-care setting. The Overdose Response and Take Home Naloxone (ORTHN) project established a model of care for take-home naloxone (THN) interventions across alcohol and other drug and harm reduction services in NSW, Australia. This paper evaluates the staff training and credentialing program, and examines staff attitudes and perspectives regarding the provision of THN interventions in these settings.

METHODS

Staff across seven services were trained through a 'train-the-trainer' credentialing model to deliver ORTHN, including naloxone supply. Staff were surveyed regarding their experience, attitudes and knowledge on THN prior to and after training, and after 6 months. At the 6 months follow up, staff were asked about the interventions they provided, barriers and enablers to uptake, and opinions regarding future rollout.

RESULTS

A total of 204 staff were trained and credentialed to provide the ORTHN intervention. Most (60%) were nurses, followed by needle syringe program workers and allied health/counsellors (32%). Linear and logistic regression analyses indicated that the training program was associated with significant improvements in staff knowledge and attitudes towards overdose and THN; however, only attitudinal improvements were maintained over time. There were high rates of staff satisfaction with the ORTHN intervention and training.

DISCUSSION/CONCLUSIONS

The ORTHN program is 'fit for purpose' for broad implementation in these settings. A number of potential barriers (e.g. time, medication and staffing costs) and enablers (e.g. peer engagement, regulatory framework for naloxone supply) in implementing THN interventions were identified.

Overdose and take-home naloxone in emergency settings: A pilot study examining feasibility of delivering brief interventions addressing overdose prevention with 'take-home naloxone' in emergency departments

OBJECTIVE

Although most unintentional opioid deaths in Australia are attributed to pharmaceutical opioids, take-home naloxone (THN) programmes have to date predominantly targeted people using illicit opioids in drug treatment and harm reduction settings. We sought to examine the feasibility of delivering THN brief interventions (THN-BIs) with intranasal naloxone in EDs.

METHODS

This pilot feasibility study was conducted across three major metropolitan EDs in Sydney and Melbourne. ED staff were surveyed about their perspectives regarding THN before completing a 30-min training programme in THN-BI delivery. Patients presenting with opioid overdose or considered high risk for future overdose were eligible to receive the THN-BI. Staff survey responses were compared between hospitals and provider types using one-way analysis of variances. Patient demographic and clinical characteristics were extracted from medical records and compared between hospitals and overdose type using Fisher's exact test and one-way analysis of variances.

RESULTS

One hundred and twenty-two ED staff completed the survey. One hundred and ten (90.2%) agreed that EDs should provide THN-BIs, whereas 23 (19.2%) identified time constraints and 17 (12.9%) felt uncomfortable discussing overdose with patients. Fifty-seven patients received the THN-BI, with the majority (n = 50, 87.7%) having presented following opioid overdose. The median age was 44 years and 40 (71.4%) were men. Two-thirds of the overdoses (n = 31, 66.0%) were attributed to heroin with one-third (n = 16, 34%) being attributed to pharmaceutical opioids.

CONCLUSIONS

ED-based delivery of THN-BIs can reach a wide range of individuals at-risk of overdose. The present study supports the feasibility of THN interventions in EDs and underscores the importance of addressing implementation barriers including staff training.

Effectiveness and implementability of state-level naloxone access policies: Expert consensus from an online modified-Delphi process

BACKGROUND

Naloxone distribution, a key global strategy to prevent fatal opioid overdose, has been a recent target of legislation in the U.S., but there is insufficient empirical evidence from causal inference methods to identify which components of these policies successfully reduce opioid-related harms. This study aimed to examine expert consensus on the effectiveness and implementability of various state-level naloxone policies.

METHODS

We used the online ExpertLens platform to conduct a three-round modified-Delphi process with a purposive sample of 46 key stakeholders (advocates, healthcare providers, human/social service practitioners, policymakers, and researchers) with naloxone policy expertise. The Effectiveness Panel (n = 24) rated average effects of 15 types of policies on naloxone pharmacy distribution, opioid use disorder (OUD) prevalence, nonfatal opioid-related overdoses, and opioid-related overdose mortality. The Implementation Panel (n = 22) rated the same policies on acceptability, feasibility, affordability, and equitability. We compared ratings across policies using medians and inter-percentile ranges, with consensus measured using the RAND/UCLA Appropriateness Method Inter-Percentile Range Adjusted for Symmetry technique.

RESULTS

Experts reached consensus on all items. Except for liability protections and required provision of education or training, experts perceived all policies to generate moderate-to-large increases in naloxone pharmacy distribution. However, only three policies were expected to yield substantive decreases on fatal overdose: statewide standing/protocol order, over-the-counter supply, and statewide "free naloxone." Of these, experts rated only statewide standing/protocol orders as highly affordable and equitable, and unlikely to generate meaningful population-level effects on OUD or nonfatal opioid-related overdose. Across all policies, experts rated naloxone prescribing mandates relatively lower in acceptability, feasibility, affordability, and equitability.

CONCLUSION

Experts believe statewide standing/protocol orders are an effective, implementable, and equitable policy for addressing opioid-related overdose mortality. While experts believe many other broad policies are effective in reducing opioid-related harms, they also believe these policies face implementation challenges related to cost and reaching vulnerable populations.

Non-fatal opioid overdose, naloxone access, and naloxone training among people who recently used opioids or received opioid agonist treatment in Australia: The ETHOS Engage study

BACKGROUND

Overdose is a major cause of morbidity and mortality among people who use opioids. Naloxone can reverse opioid overdoses and can be distributed and administered with minimal training. People with experience of overdose are a key population to target for overdose prevention strategies. This study aims to understand if factors associated with recent non-fatal opioid overdose are the same as factors associated with naloxone access and naloxone training in people who recently used opioids or received opioid agonist treatment (OAT).

METHODS

ETHOS Engage is an observational study of people who inject drugs in Australia. Logistic regression models were used to estimate odds ratios for non-fatal opioid overdose, naloxone access and naloxone training.

RESULTS

Between May 2018-September 2019, 1280 participants who recently used opioids or received OAT were enrolled (62% aged >40 years; 35% female, 80% receiving OAT, 62% injected drugs in the preceding month). Recent opioid overdose (preceding 12 months) was reported by 7% of participants, lifetime naloxone access by 17%, and lifetime naloxone training by 14%. Compared to people receiving OAT with no additional opioid use, recent opioid, benzodiazepine (preceding six months), and hazardous alcohol use was associated with recent opioid overdose (aOR 3.91; 95%CI: 1.68-9.10) and lifetime naloxone access (aOR 2.12; 95%CI 1.29-3.48). Among 91 people who reported recent overdose, 65% had never received take-home naloxone or naloxone training.

CONCLUSIONS

Among people recently using opioids or receiving OAT, benzodiazepine and hazardous alcohol use is associated with non-fatal opioid overdose. Not all factors associated with non-fatal overdose correspond to factors associated with naloxone access. Naloxone access and training is low across all groups. Additional interventions are needed to scale up naloxone provision.

Practical implications of naloxone knowledge among suburban people who use opioids

BACKGROUND

Naloxone distribution programs have been a cornerstone of the public health response to the overdose crisis in the USA. Yet people who use opioids (PWUO) continue to face a number of barriers accessing naloxone, including not knowing where it is available.

METHODS

We used data from 173 PWUO from Anne Arundel County, Maryland, which is located between Baltimore City and Washington, DC. We assessed the prevalence of recently (past 6 months) receiving naloxone and currently having naloxone, the type(s) of the naloxone kits received, and the perceived ease/difficultly of accessing naloxone. We also assessed participants knowledge of where naloxone was available in the community.

RESULTS

One third (35.7%) of participants had recently received naloxone. Most who had received naloxone received two doses (72.1%), nasal naloxone (86.9%), and education about naloxone use (72.1%). Most currently had naloxone in their possession (either on their person or at home; 78.7%). One third (34.4%) believed naloxone was difficult to obtain in their community. Only half (56.7%) knew of multiple locations where they could get naloxone. The health department was the most commonly identified naloxone source (58.0%). Identifying multiple sources of naloxone was associated with being more likely to perceive that naloxone is easy to access.

DISCUSSION

Our results suggest that additional public health efforts are needed to make PWUO aware of the range of sources of naloxone in their communities in order to ensure easy and continued naloxone access to PWUO.

Prevalence and correlates of multiple non-fatal opioid overdoses among people who inject drugs who utilise needle syringe programs in Australia

BACKGROUND

Non-fatal overdose (NFOD) is a major cause of morbidity among people who inject drugs (PWID) and multiple NFOD is associated with increased risk of fatal overdose. Despite this, few studies have examined the prevalence and correlates of drug-specific multiple NFOD. The current study aimed to determine the prevalence and correlates of recent multiple non-fatal opioid overdose (NFOOD) among PWID who access needle syringe programs (NSPs) in Australia.

METHODS

The Australian Needle and Syringe Program Survey is conducted annually and was conducted at 46 sites across Australia in 2019. Participation involves completion of a self-administered questionnaire and a capillary dried blood spot for HIV and hepatitis C virus testing. In 2019, respondents who reported a minimum of one NFOOD in the previous 12 months (recent NFOOD) were asked to complete supplementary questions regarding their last NFOOD. Bivariate and multivariate logistic regression were used to determine factors independently associated with multiple recent NFOOD.

RESULTS

A total of 222 respondents reported recent NFOOD. Respondents were predominantly male (59%), one third (39%) were aged less than 39 years and 73% reported last injecting heroin at their last NFOOD. One in two respondents (48%, n = 107) reported multiple opioid overdoses (median 3, interquartile range 2-5). The odds of reporting multiple NFOOD were higher among respondents who reported injecting in a public location at their last NFOOD (adjusted odds ratio [AOR] 2.10, 95% CI 1.14-3.90, p = 0.018) and benzodiazepine use in the 12 h prior to NFOOD (AOR 2.74, 95% CI 1.50-4.99, p = 0.001).

CONCLUSIONS

Multiple NFOOD was prevalent among PWID who utilised NSPs who reported recent NFOOD. Public injecting and benzodiazepine use were associated with increased risk of multiple NFOOD, and there is a need for interventions specifically targeting PWID who report these high risk injecting practices.

Fatal and Non-Fatal Heroin-Related Overdoses: Circumstances and Patterns

INTRODUCTION

Heroin overdose is a leading cause of mortality among drug users. This paper aims to identify individual and contextual factors associated with lethal and non-lethal heroin-related overdoses on the basis of case reports and semi-structured proxy interviews. Typical patterns within these cases are determined by means of cluster analysis.

METHODS

Within the CaRe (Case Reports of heroin-related overdoses) study, case reports (100 proxy reports of overdose events from 36 different facilities) were gathered and evaluated as part of a nationwide survey of experts conducted in Germany in 2019. Following initial descriptive analyses a two-step cluster analysis with the four binary variables of gender, age, time and place was conducted to identify patterns within the reported cases.

RESULTS

The case reports grouped into five clusters: 1) Younger male drug users, found in a public space during the daytime; 2) Female drug users; 3) Older male drug users, found in a public space during the daytime; 4) Drug users found at home at night; 5) Drug users found outside at night. Overdoses by female drug users and those which occurred at home and/or at night were significantly more likely to have a fatal outcome.

CONCLUSION

Future prevention and intervention measures should aim to consider the context, i.e. typical constellations of risk, and attempt to inhibit this through appropriate counter measures.

A review of performance assessment tools for rescuer response in opioid overdose simulations and training programs

Since the 1990s, more than 600 overdose response training and education programs have been implemented to train participants to respond to an opioid overdose in the United States. Given this substantial investment in overdose response training, valid assessment of a potential rescuers' proficiency in responding to an opioid overdose is important. The aim of this article is to review the current state of the literature on outcome measures utilized in opioid overdose response training. Thirty-one articles published between 2014 and 2020 met inclusion criteria. The reviewed articles targeted laypersons, healthcare providers, and first responders. The assessment tools included five validated questionnaires, fifteen non-validated questionnaires, and nine non-validated simulation-based checklists (e.g., completion of critical tasks and time to completion). Validated multiple choice knowledge assessment tools were commonly used to assess the outcomes of training programs. It is unknown how scores on these assessment tools may correlate with actual rescuer performance responding to an overdose. Seven studies reported ceiling effects most likely attributed to participants' background medical knowledge or experience. The inclusion of simulation-based outcome measures of performance, including the commission of critical errors and the time to naloxone administration, provides better insight into rescuer skill proficiency.

Feasibility and acceptability of take-home naloxone for people released from prison in New South Wales, Australia

INTRODUCTION AND AIMS

To assess the feasibility and acceptability of a take-home naloxone program for people with a history of opioid use released from prison in New South Wales, Australia.

DESIGN AND METHODS

Cross-sectional interviews with people with a history of opioid use who were recently released from prison (n = 105), and semi-structured interviews with key clinical and operational staff of Justice Health and Forensic Mental Health Network and Corrective Services NSW (n = 9).

RESULTS

Among people with a history of opioid use who had recently left prison, there was very high awareness of the elevated risk of overdose following release from prison (95%) and the potential for naloxone to reverse an opioid overdose (97%). Participants considered that their personal risk of overdose was low, despite ongoing opioid use being common. Participants were largely supportive of take-home naloxone, but the majority (83%) stated that proactively obtaining naloxone would be a low priority for them following release. Key informants were supportive of introducing naloxone training and supply and identified barriers to implementation, including adequate resourcing, identifying the population for training, and developing an appropriate model of training and implementation.

DISCUSSION AND CONCLUSION

There was widespread support for naloxone training in custody and distribution at release among people recently released from prison and key stakeholders in health-care provision and prisons administration. As proactively accessing naloxone is a low priority for patients, naloxone supply at release may be more effective than programs that refer releasees to local pharmacies, but developing a sustainable supply model requires consideration of several barriers.

Addiction stigma and the production of impediments to take-home naloxone uptake

Opioid overdose deaths are a major health issue in Australia and around the world. Programmes to provide opioid consumers with 'take-home' naloxone to reverse overdose exist internationally, but uptake by mainstream health services and consumers remains inconsistent. Researchers have identified a range of important educational, training and logistical impediments to take-home naloxone uptake and distribution, yet they have focused less on the social dynamics that can enhance or limit access, such as stigma. In this article, we also explore impediments to uptake, drawing on qualitative interview data gathered for an Australian research project on take-home naloxone. Mobilising a performative approach to stigma, we argue that overdose and prevention are shaped by the social dynamics of stigma and, as such, responsibility for dealing with overdose, as with take-home naloxone, should also be considered social (i.e. shared among peers, the public, communities and governments). Our interview data illuminate the various ways in which addiction stigma limits the possibilities and capacities of take-home naloxone and overdose prevention. First, we focus on how stigma may impede professional information provision about take-home naloxone by limiting the extent to which it is presented as a matter of interest for all opioid consumers, not just those who consume opioids illicitly. Second, we explore how stigma may limit the scale-up and expansion of programmes and access points. From here, we focus on how stigma co-constitutes the politics of overdose and prevention, rendering take-home naloxone ill-suited to many social settings of overdose. In closing, we point out that stigma is not just a post hoc impediment to access to and use of take-home naloxone but is central to opioid overdose production itself, and to effective prevention. While take-home naloxone is an excellent life-saving initiative, uncritically valorising it may divert attention from broader goals, such as the de-stigmatisation of drug consumption through decriminalisation, and other ambitious attempts to reduce overdose.

Recent trends in heroin and pharmaceutical opioid-related harms in Victoria, Australia up to 2018

AIMS

To characterize the trajectory in the years leading up to 2018 in pharmaceutical opioid and heroin morbidity in Victoria, Australia, and to assess the effect on that trajectory of reformulation of oxycodone to a form that could not be easily snorted or injected.

DESIGN

Interrupted time-series analyses of population-level data before versus after reformulation of oxycodone, stratified by sex.

SETTING

Victoria, Australia.

PARTICIPANTS

The population of Victoria aged 12+ years.

MEASUREMENTS

Ambulance patient care and emergency department (ED) records were examined using both fixed-code and free-text fields, with each record manually cleaned and checked by trained coders. These were used to derive the output variables providing an index of harm: rates of opioid-related ambulance attendances and ED attendances for pharmaceutical opioids and heroin. The input variable was pre- versus post-oxycodone reformulation.

FINDINGS

There were 30 045 opioid-related ambulance attendances from January 2012 to October 2018 (54% heroin-related), and 10 113 ED attendances from July 2008 to June 2018 (39% heroin-related). There was an increase in the rate (events per 100 000 people per year) of all opioid ED attendances from 2008 to 2018 [increase = 0.063; 95% confidence interval (CI) = 0.049, 0.078]. Pharmaceutical opioid ED attendances decreased from 2014 onwards (slope change = -0.083; 95% CI = -0.108, -0.059). Heroin-related ED attendances increased from 2014 to 2018; 11 324 heroin-related ambulance attendances and 1980 ED attendances were observed from April 2014 to June 2018, compared with the respective estimates of 8176, and 1661 had the pre-April 2014 trend continued (ambulance slope change = 0.296, 95% CI = 0.104, 0.489; ED slope change = 0.026, 95% CI = 0.005, 0.046). The inflection point of 2014 coincided with the re-formulation of oxycodone.

CONCLUSION

In Victoria, Australia, there appears to have been a trend starting around mid-2014 of increasing heroin-related harm, and a flattening of the increase or a decrease of harms relating to pharmaceutical opioids. These changes may, in part, reflect reformulation of oxycodone to reduce the extent to which it can be injected or snorted.

Designing, implementing and evaluating the overdose response with take-home naloxone model of care: An evaluation of client outcomes and perspectives

INTRODUCTION AND DESIGNS

Take-home naloxone (THN) interventions are an effective response to preventing overdose deaths, however uptake across Australia remains limited. This project designed, implemented and evaluated a model of care targeting opioid users attending alcohol and other drug (AOD) treatment, needle and syringe programs (NSP) and related health services targeting people who inject drugs.

DESIGN AND METHODS

Service providers, consumers and regulators collaboratively designed a THN brief intervention (ORTHN, Overdose Response with Take-Home Naloxone) involving client education and supply of naloxone in pre-filled syringes, delivered by nursing, allied health and NSP workers. ORTHN interventions were implemented in over 15 services across New South Wales, Australia. The evaluation included client knowledge, attitudes, substance use and overdose experiences immediately before and 3 months after ORTHN intervention in a subsample of participants.

RESULTS

Six hundred and sixteen interventions were delivered, with 145 participants recruited to the research subsample, of whom 95 completed the three-month follow up. Overdose-related attitudes amongst participants improved following ORTHN, with no evidence of increased substance use or failure to implement other 'first responses' (e.g. calling an ambulance). Nine participants (10%) reversed an overdose using THN in the follow-up period. Participants identified a willingness to access THN from a range of services. While a minority (16%) indicated they were unwilling to pay for THN, the median price that participants were willing to pay was $AUD20 (IQR $10.40).

DISCUSSION AND CONCLUSIONS

The ORTHN model of care for THN appears an effective way to disseminate THN to people who use opioids attending AOD, NSP and related health-care settings.

Take-home naloxone and the politics of care

'Take-home naloxone' refers to a life-saving intervention in which a drug (naloxone) is made available to nonmedically trained people for administration to other people experiencing an opioid overdose. In Australia, it has not been taken up as widely as would be expected, given its life-saving potential. We consider the actions of take-home naloxone, focusing on how care relations shape its uses and effects. Mobilising Science and Technology Studies insights, we suggest that the uses and effects of naloxone are co-produced within social relations and, therefore, this initiative 'affords' multiple outcomes. We argue that these affordances are shaped by a politics of care, and that these politics relate to uptake. We analyse two complementary case studies, drawn from an interview-based project, in which opioid consumers discussed take-home naloxone and its uses. Our analysis maps the ways take-home naloxone can afford (i) a regime of care within an intimate partnership (allowing a terminally ill man to more safely consume opioids) and (ii) a political process of care (in which a consumer takes care of others treated with the medication by administering it 'gently'). We conclude by exploring the political affordances of a politics of care approach for the uptake of take-home naloxone.

Challenges with take-home naloxone in reducing heroin mortality: a review of fatal heroin overdose cases in Victoria, Australia

AIM

Take-home naloxone (THN) programs have been implemented in order to reduce the number of heroin-overdose deaths. Because of recent legislative changes in Australia, there is a provision for a greater distribution of naloxone in the community, however, the potential impact of these changes for reduced heroin mortality remains unclear. The aim of this study was to examine the characteristics of the entire cohort of fatal heroin overdose cases and assess whether there was an opportunity for bystander intervention had naloxone been available at the location and time of each of the fatal overdose events to potentially avert the fatal outcome in these cases.

METHODS

The circumstances related to the fatal overdose event for the cohort of heroin-overdose deaths in the state of Victoria, Australia between 1 January 2012 and 31 December 2013 were investigated. Coronial data were investigated for all cases and data linkage was performed to additionally investigate the Emergency Medical Services information about the circumstances of the fatal heroin overdose event for each of the decedents.

RESULTS AND DISCUSSION

There were 235 fatal heroin overdose cases identified over the study period. Data revealed that the majority of fatal heroin overdose cases occurred at a private residence (n = 186, 79%) and where the decedent was also alone at the time of the fatal overdose event (n = 192, 83%). There were only 38 cases (17%) where the decedent was with someone else or there was a witness to the overdose event, and in half of these cases the witness was significantly impaired, incapacitated or asleep at the time of the fatal heroin overdose. There were 19 fatal heroin overdose cases (8%) identified where there was the potential for appropriate and timely intervention by a bystander or witness.

CONCLUSION

This study demonstrated that THN introduction alone could have led to a very modest reduction in the number of fatal heroin overdose cases over the study period. A lack of supervision or a witness to provide meaningful and timely intervention was evident in most of the fatal heroin overdose cases.

Acceptability of prison-based take-home naloxone programmes among a cohort of incarcerated men with a history of regular injecting drug use

Background

Take-home naloxone (THN) programmes are an evidence-based opioid overdose prevention initiative. Elevated opioid overdose risk following prison release means release from custody provides an ideal opportunity for THN initiatives. However, whether Australian prisoners would utilise such programmes is unknown. We examined the acceptability of THN in a cohort of male prisoners with histories of regular injecting drug use (IDU) in Victoria, Australia.

Methods

The sample comprised 380 men from the Prison and Transition Health (PATH) Cohort Study; all of whom reported regular IDU in the 6 months prior to incarceration. We asked four questions regarding THN during the pre-release baseline interview, including whether participants would be willing to participate in prison-based THN. We describe responses to these questions along with relationships between before- and during-incarceration factors and willingness to participate in THN training prior to release from prison.

Results

Most participants (81%) reported willingness to undertake THN training prior to release. Most were willing to resuscitate a friend using THN if they were trained (94%) and to be revived by a trained peer (91%) using THN. More than 10 years since first injection (adjusted odds ratio [AOR] 2.22, 95%CI 1.03–4.77), having witnessed an opioid overdose in the last 5 years (AOR 2.53, 95%CI 1.32–4.82), having ever received alcohol or other drug treatment in prison (AOR 2.41, 95%CI 1.14–5.07) and injecting drugs during the current prison sentence (AOR 4.45, 95%CI 1.73–11.43) were significantly associated with increased odds of willingness to participate in a prison THN programme. Not specifying whether they had injected during their prison sentence (AOR 0.37, 95%CI 0.18–0.77) was associated with decreased odds of willingness to participate in a prison THN training.

Conclusion

Our findings suggest that male prisoners in Victoria with a history of regular IDU are overwhelmingly willing to participate in THN training prior to release. Factors associated with willingness to participate in prison THN programmes offer insights to help support the implementation and uptake of THN programmes to reduce opioid-overdose deaths in the post-release period.