Community-Based Response to Fentanyl Overdose Outbreak, San Francisco, 2015

Overdose responses among rural people who use drugs: A multi-regional qualitative study

BACKGROUND

Efforts to distribute naloxone have equipped more people with the ability to reverse opioid overdoses but people who use drugs are often reluctant to call 911 due to concerns for legal repercussions. Rural communities face unique challenges in reducing overdose deaths compared to urban communities, including limited access to harm reduction services as well as greater concerns about stigma and privacy.

METHODS

The Rural Opioid Initiative was funded in 2017 to better understand the health-related harms associated with the opioid crisis in rural US communities and consists of eight studies spanning ten states and 65 counties. Each study conducted semi-structured qualitative interviews with people who use drugs to understand contextual factors influencing drug use and health behaviors. We analyzed qualitative data from seven studies with data available at the time of analysis to understand peer response to overdose.

RESULTS

Of the 304 participants interviewed, 55% were men, 70% were white, 80% reported current injection drug use, and 60% reported methamphetamine use. Similar to what has been found in studies focused on urban settings, people who use drugs in rural communities use a range of strategies to reverse overdoses, including non-evidence-based approaches. Several reported that multiple doses of naloxone are needed to reverse overdose. Three themes emerged around the willingness to call 911, including (1) hesitancy to call 911 for fear of legal consequences, (2) negative perceptions or experiences with law enforcement officers, and (3) efforts to obtain medical intervention while avoiding identification/law enforcement involvement.

CONCLUSION

People who use drugs employ multiple strategies to attempt overdose reversal, including non-evidence-based approaches. Greater education about the most effective and least harmful strategies is needed. Reluctance to call 911 is rooted in concerns about potential legal consequences as well as perceptions about law enforcement officers, which may be heightened in rural communities where people who use drugs are more easily identified by law enforcement. People who use drugs will go to great strides to connect their peers to needed medical services, suggesting that comprehensive interventions to reduce interactions with law enforcement officers and eliminate legal consequences for reporting overdoses are critical.

Overdosevarslingssystemer – en kartleggingsoversikt med maskinlæring

Bakgrunn: Helsedirektoratet ønsker å vurdere muligheten for å etablere et nasjonalt overdosevarslingssystem (OVS) for å kunne varsle brukere om økt overdosefare. OVS som system forstås her som et sett med sammenhengende elementer som fungerer som en helhet, der hensikten er tidlig oppdagelse av økt overdoserisiko kombinert med rask varsling til de som står i fare for overdoser. Metode: Vi utførte en kartleggingsoversikt over forskning om varslingssystemer for økt overdosefare. Mål 1 var å kartlegge eksisterende forskning om effekten av et OVS (antall brukere nådd, antall overdoser, varslingshurtighet). Mål 2 var å kartlegge eksisterende forskning som kunne belyse brukeres erfaringer med slike systemer. Resultater: Vi brukte flere maskinlæringsfunksjoner for å identifisere og vurdere totalt 4102 referanser fra litteratursøk gjennomført i mars/april 2022, hvorav 11 studier oppfylte inklusjonskriteriene. Effekt av OVS på antall overdoser var ikke mulig å skille fra eksisterende overdoseforebyggende tiltak. OVS’er varslet skadereduksjonsgrupper eller erfaringskonsulenter så tidlig som fire timer etter innmeldt/oppdaget fare. Antall brukere varslet ble i stor grad ikke rapportert, antageligvis fordi data om dette ikke ble innsamlet. Fra syv kvalitative studier ble mønstre i hovedfunn sett på tvers, som omhandlet preferanser for språkbruk og innhold, hvor varslinger burde komme fra, og prinsippene bak dem. Konklusjon: Vi identifiserte lite empirisk forskning om eksisterende OVS’er, særlig relatert til effekt av slike systemer. Uten tilstrekkelig forskningsgrunnlag om effekt må vi være forsiktige med å trekke konklusjoner om hvilke typer OVS’er som bør og ikke bør innføres i Norge. Opprettelse av et OVS trenger ikke nødvendigvis innebære etablering av en ny infrastruktur, men heller være snakk om at to godt utviklede, eksisterende systemer – systemer for overvåking og skadereduksjonstiltak – kan kobles sammen.

Treatment of opioid overdose: current approaches and recent advances

BACKGROUND

The USA has recently entered the third decade of the opioid epidemic. Opioid overdose deaths reached a new record of over 74,000 in a 12-month period ending April 2021. Naloxone is the primary opioid overdose reversal agent, but concern has been raised that naloxone is not efficacious against the pervasive illicit high potency opioids (i.e., fentanyl and fentanyl analogs).

METHODS

This narrative review provides a brief overview of naloxone, including its history and pharmacology, and the evidence regarding naloxone efficacy against fentanyl and fentanyl analogs. We also highlight current advances in overdose treatments and technologies that have been tested in humans.

RESULTS AND CONCLUSIONS

The argument that naloxone is not efficacious against fentanyl and fentanyl analogs rests on case studies, retrospective analyses of community outbreaks, pharmacokinetics, and pharmacodynamics. No well-controlled studies have been conducted to test this argument, and the current literature provides limited evidence to suggest that naloxone is ineffective against fentanyl or fentanyl analog overdose. Rather a central concern for treating fentanyl/fentanyl analog overdose is the rapidity of overdose onset and the narrow window for treatment. It is also difficult to determine if other non-opioid substances are contributing to a drug overdose, for which naloxone is not an effective treatment. Alternative pharmacological approaches that are currently being studied in humans include other opioid receptor antagonists (e.g., nalmefene), respiratory stimulants, and buprenorphine. None of these approaches target polysubstance overdose and only one novel approach (a wearable naloxone delivery device) would address the narrow treatment window.

Racial/Ethnic Disparities in Opioid-Related Mortality in the USA, 1999-2019: the Extreme Case of Washington DC

In 2019, there were nearly 50,000 opioid-related deaths in the US, with substantial variation across sociodemographic groups and geography. To systematically investigate patterns of racial/ethnic inequities in opioid-related mortality, we used joinpoint regression models to estimate the trajectory of the opioid epidemic among non-Hispanic Black versus non-Hispanic white residents in Washington DC, 45 states, and 81 sub-state areas. We highlight the unique inequities observed in Washington DC. In 2019, the observed opioid-related mortality rate among Black DC residents was 11.3 times higher than white DC residents, resulting in 56.0 more deaths per 100,000 (61.5 vs. 5.5 per 100,000). This inequity was substantially higher than any other jurisdiction on both the relative and absolute scales. Most opioid-related deaths in DC involved synthetic opioids, which was present in 92% (N=198) of deaths among Black DC residents and 69% (N=11) of deaths among white DC residents. Localized, equitable, culturally-appropriate, targeted interventions are necessary to reduce the uniquely disproportionate burden of opioid-related mortality among Black DC residents.

Fentanyl epidemic hits the U.S. West Coast: Opioid-related deaths in San Francisco from 2009-2019

BACKGROUND

Opioid-use disorders have led to a nationwide epidemic of accidental overdoses in the United States. In recent years this opioid epidemic has worsened due to the increased availability of fentanyl in the illicit drug market. The increase in fentanyl-related deaths is well known on the U.S. East Coast, however, limited comprehensive information of mortality data exists from major West Coast cities.

METHODS

Following comprehensive medico-legal death and toxicological investigations, a retrospective cohort study was performed on all accidental opioid overdose deaths (AOOD) from 2009 - 2019 in San Francisco. The sex, age and race of decedents, location, and date and time of death were described and statistically compared by the type of opioid(s) causing death.

RESULTS

Since 2016, fentanyl deaths started to replace heroin deaths leading to a sharp increase in fatal overdoses involving fentanyl, surpassing heroin and/or medicinal opioids by 2018. Fentanyl contributed to between 3% and 12% of deaths per year from 2009 to 2015, and between 20% and 73% per year from 2016 to 2019. White and Black males represented 91.5% of all AOOD. Age groups younger than 45 died using fentanyl and heroin significantly more often than older populations (60.7% of ≤45 vs. 40.7% of >45 year-olds, χ²p<0.001).

CONCLUSIONS

This study shows an upward trend in fentanyl fatal accidental overdoses in recent years in a major West Coast U.S. city. These patterns appear to follow patterns seen in eastern states, albeit with an approximate 3-year delay, and may be indicative of other western populations. The described observations provide detailed demographic, chronological and toxicological information to public health and policy-making agencies for drug harm reduction measures.

Emergency care with lay responders in underserved populations: a systematic review

Objective

To assess the individual and community health effects of task shifting for emergency care in low-resource settings and underserved populations worldwide.

Methods

We systematically searched 13 databases and additional grey literature for studies published between 1984 and 2019. Eligible studies involved emergency care training for laypeople in underserved or low-resource populations, and any quantitative assessment of effects on the health of individuals or communities. We conducted duplicate assessments of study eligibility, data abstraction and quality. We synthesized findings in narrative and tabular format.

Findings

Of 19 308 papers retrieved, 34 studies met the inclusion criteria from low- and middle-income countries (21 studies) and underserved populations in high-income countries (13 studies). Targeted emergency conditions included trauma, burns, cardiac arrest, opioid poisoning, malaria, paediatric communicable diseases and malnutrition. Trainees included the general public, non-health-care professionals, volunteers and close contacts of at-risk populations, all trained through in-class, peer and multimodal education and public awareness campaigns. Important clinical and policy outcomes included improvements in community capacity to manage emergencies (14 studies), patient outcomes (13 studies) and community health (seven studies). While substantial effects were observed for programmes to address paediatric malaria, trauma and opioid poisoning, most studies reported modest effect sizes and two reported null results. Most studies were of weak (24 studies) or moderate quality (nine studies).

Conclusion

First aid education and task shifting to laypeople for emergency care may reduce patient morbidity and mortality and build community capacity to manage health emergencies for a variety of emergency conditions in underserved and low-resource settings.

Patterns and risk factors of opioid-suspected EMS overdose in Houston metropolitan area, 2015-2019: A Bayesian spatiotemporal analysis

BACKGROUND

Opioid-related overdose deaths are the top accidental cause of death in the United States, and development of regional strategies to address this epidemic should begin with a better understanding of where and when overdoses are occurring.

METHODS AND FINDINGS

In this study, we relied on emergency medical services data to investigate the geographical and temporal patterns in opioid-suspected overdose incidents in one of the largest and most ethnically diverse metropolitan areas (Houston Texas). Using a cross sectional design and Bayesian spatiotemporal models, we identified zip code areas with excessive opioid-suspected incidents, and assessed how the incidence risks were associated with zip code level socioeconomic characteristics. Our analysis suggested that opioid-suspected overdose incidents were particularly high in multiple zip codes, primarily south and central within the city. Zip codes with high percentage of renters had higher overdose relative risk (RR = 1.03; 95% CI: [1.01, 1.04]), while crowded housing and larger proportion of white citizens had lower relative risks (RR = 0.9; 95% CI: [0.84, 0.96], RR = 0.97, 95% CI: [0.95, 0.99], respectively).

CONCLUSIONS

Our analysis illustrated the utility of Bayesian spatiotemporal models in assisting the development of targeted community strategies for local prevention and harm reduction efforts.

Emergency medical services targeting opioid user disorder: An exploration of current out-of-hospital post-overdose interventions

OBJECTIVE

The opioid epidemic continues to escalate, and out-of-hospital emergency medical services (EMS) play a vital role in acute overdose reversal, but could serve a broader role post-incident for follow-up, outreach, and referrals. Our objective is to identify the scope and prevalence of community-based, post-opioid overdose EMS programs across the United States.

METHODS

We used a narrative review of prior studies in PubMed and Scopus for the last 20 years (1999-2020) to identify relevant medical literature and a web search to identify gray literature of EMS interventions involving opioids.

RESULTS

Out of nearly 22,000 EMS agencies across the United States, we found evidence of only 27 programs published in medical or gray literature involving post-overdose interventions. They were most commonly found in the north and eastern region of the country. Although most of these programs incorporate harm reduction and education, other more innovative aspects such as linkage to outpatient addiction treatment or peer support services, are much less common. The most comprehensive programs involved combinations of innovative outreach, specialized referrals, integration with police and criminal justice, peer support, and even treatment initiation.

CONCLUSIONS

Out-of-hospital emergency care has the potential to provide more comprehensive care after drug overdose, but many programs either do not currently have such an intervention in place, or are not disseminating their practices for other agencies to assimilate. EMS protocols and policies that encourage greater adoption of active community paramedicine practices for opioids should be encouraged.

Prevalence and disparities in opioid overdose response training among people who inject drugs, San Francisco: Naloxone training among injectors in San Francisco

BACKGROUND

Expanding naloxone training stands to reduce opioid-related overdose deaths. The current study assessed the prevalence of overdose response training and use of naloxone among people who inject drugs (PWID).

METHODS

Data were from a survey of PWID in San Francisco in 2018, recruited by respondent-driven sampling (RDS). Eligibility criteria were age over 18 years, injected non-prescribed drugs in the last year, San Francisco residence, and referral by another participant. Interviews collected demographic characteristics and injection-related behavior.

RESULTS

The sample (N=458) was majority male (67.5%) and over 45.5 years. Over three-fourths (76.0%) injected primarily opioids. Overall, 62.9% received overdose response training and 68.8% owned a naloxone kit. A majority (77.9%) had witnessed an overdose in the past year, of whom 55.8% used naloxone the last time they witnessed an overdose. Receiving overdose response training was significantly lower among persons of non-white race/ethnicity compared to whites (adjusted odds ratio [AOR] 0.43, 95% CI 0.27, 0.69) and higher among those who owned naloxone (AOR 6.29, 95% confidence interval [CI] 3.95, 10.02) and used syringe exchange programs (AOR 3.51, 95% CI 1.41, 8.79).

CONCLUSION

While the majority of PWID have had overdose response training, gaps and disparities persist in promotion of naloxone use.

Addressing overdose risk among unstably housed women in San Francisco, California: an examination of potential fentanyl contamination of multiple substances

Background

Numerous reports have led to concerns that fentanyl is added to many street drugs as an adulterant, including to stimulants like cocaine and methamphetamine, and could increase risks for negative health outcomes.

Methods

We collected information regarding recent substance use through self-report and urine toxicology (confirmed with mass spectrometry) once a month for up to 6 monthly study visits from a probability sample of 245 women in San Francisco with a history of housing instability (2016-2019). We compared the presence of fentanyl metabolites with (1) the presence of metabolites for other substances and (2) self-reported past week substance use.

Results

Out of 1050 study visits, fentanyl metabolites were detected 35 times (i.e., at 3% of all study visits and among 19/245, or 8% of all women). In most but not all (91%, or 32/35) of these detected cases, heroin or opioid medication use was self-reported. Among women who reported cocaine or methamphetamine use, but did not use heroin or opioid medication, fentanyl was detected in only 1 of 349 cases (0.3%). In adjusted logistic regression, the presence of fentanyl metabolites was independently associated with (1) presence of opiate, heroin, and benzodiazepine metabolites, and (2) self-reported past week use of heroin and opioid medications. Fentanyl metabolite detection was not independently associated with cocaine or methamphetamine use.

Conclusions

The presence of fentanyl metabolites in this population was almost entirely among women who also reported using heroin or opioid pills. These data do not support the hypothesis that fentanyl is being routinely added to stimulants as an adulterant on a large scale in this region.

The epidemiology of prescription fentanyl misuse in the United States

BACKGROUND

US opioid overdose deaths continue to climb, with a 12.0% increase from 2016 to 2017. Fentanyl, a synthetic opioid, has been a major contributor to opioid-related overdose deaths. While fentanyl-related overdose is driven by illicit fentanyl, little is known about individuals who misuse prescription fentanyl, which is also linked to elevated overdose and mortality risk. This work aimed to fill that gap through analyses of prescription fentanyl misuse correlates.

METHODS

Data were from the 2015-16 National Survey on Drug Use and Health (N = 114,043), a nationally representative survey of the non-institutionalized US population. Respondents were (all past-year): those misusing prescription fentanyl (PF); those misusing other (non-fentanyl) prescription opioids (NFPO); and population controls. Respondent groups were compared using multinomial regression on sociodemographics, physical health, mental health and substance use. The PF and NFPO misuse groups were compared on opioid misuse characteristics, using logistic regression.

RESULTS

An estimated 4.4% misused NFPO, and 0.1% misused PF (past-year). Past-year heroin use was more common in those who misused PF (44.3%) than those who misused other NFPO (4.4%; relative risk ratio [RRR] = 7.1, 95%CI = 3.7-13.9) or population controls (0.1%, RRR = 35.1, 95%CI = 17.3-71.1). Non-alcohol substance use disorder (SUD) was similarly elevated in those who misused PF (78.7%) versus the other NFPO group (27.5%, RRR = 3.8, 95%CI = 1.8-8.2) or population controls (1.6%, RRR = 20.6, 95%CI = 9.4-45.5).

CONCLUSIONS

Respondents who misused prescription fentanyl were both more drug-involved generally and opioid-involved specifically; and likely need a combination of significant interventions and monitoring for their polysubstance use.

Identifying high-risk areas for nonfatal opioid overdose: a spatial case-control study using EMS run data

PURPOSE

The objective of our study was to incorporate stricter probable nonfatal opioid overdose case criteria, and advanced epidemiologic approaches to more reliably detect local clustering in nonfatal opioid overdose activity in EMS runs data.

METHODS

Data were obtained using emsCharts for our study area in southwestern Pennsylvania from 2007 to 2018. Cases were identified as emergency medical service (EMS) responses where naloxone was administered, and improvement was noted in patient records between initial and final Glasgow Coma Score. A subsample of all-cause EMS responses sites were used as controls and exact matched to cases on sex and 10-year-age category. Clustering was assessed using difference in Ripley's K function for cases and controls and Kulldorff scan statistics.

RESULTS

Difference in K functions indicated no significant difference in probable nonfatal overdose EMS runs across the study area compared to all-cause EMS runs. However, scan statistics did identify significant local clustering of probable nonfatal overdose EMS runs (maximum likelihood = 16.40, P = 0.0003).

CONCLUSIONS

Results highlight relevance of EMS data to detect community-level overdose activity and promote reliable use through stricter case definition criteria and advanced methodological approaches. Techniques examined have the potential to improve targeted delivery of neighborhood-level public health response activities using a near real-time data source.

Community Forums to Address the Opioid Crisis: An Effective Grassroots Approach to Rural Community Engagement

PURPOSE

With opioid overdose deaths on the rise in rural Minnesota and across the nation, the call for community-based grassroots efforts is stronger than ever. Recognizing that substance use prevention and recovery programming rely upon community resources, collaborative teams planned and implemented a series of nine community forums focused on opioid and heroin use across rural northeast Minnesota to educate and unite invested community members on the critical public health issue. This article examines the outcomes of the forums and the ingredients of a successful forum.

METHODS

Surveys were distributed at seven rural community forums to assess measures of growth in knowledge and awareness, as well as demographic characteristics of respondents.

FINDINGS

Forums planned by university faculty and community members were effective in increasing overall awareness and knowledge of the opioid crisis within each community. Forums that were rated more highly by attendees included speakers from varied professional backgrounds and integrated cultural strengths. Communities that planned forums together have reported increased collaboration to prevent and address substance use and increased community member engagement on local grassroots coalitions since the time of the forum.

CONCLUSIONS

Community forums have functioned as an effective grassroots approach to engaging rural community members in opioid use prevention and intervention efforts.