Commentary on Irvine et al. (2019): Barriers to implementing a successful roadmap for preventing opioid-related overdose deaths

Community Support for Harm Reduction and Treatment of Opioid Use Disorder

As the opioid epidemic continues, availability of evidence-based strategies for harm reduction and treatment in communities is critical to reduce overdose and other consequences of opioid use disorder. Community members' support of harm reduction and treatment services is needed for new programs and to maintain existent programs. This study sought to understand beliefs and attitudes associated with support for three community-based strategies to address opioid misuse and addiction: naloxone, needle exchange, and medication-assisted treatment. We conducted a cross-sectional online survey with 545 adults. Results of the survey showed that participants supported all three strategies, with the strongest support for medication-assisted treatment. Multiple regression showed that stigma and perceived stigma were significant predictors for all three strategies, with inverse relationships. Stigmatizing beliefs predicted less support while perceiving stigma among others was associated with greater support for the strategies. Normative beliefs also significantly predicted support for all three strategies, such that stronger belief that others were supportive of each strategy was associated with greater support for that strategy. Other predictors varied across the three strategies. Support for harm reduction and treatment programs in communities affected by the opioid epidemic may be bolstered by reducing stigma and increasing normative beliefs. Stronger support for medication-assisted treatment may be leveraged and extended to harm reduction strategies. Results of our study contribute insights for bolstering community support for harm reduction and treatment, which is vital for adoption and maintenance of these important programs.

Preliminary effectiveness of online opioid overdose and naloxone administration training and impact of naloxone possession on opioid use

BACKGROUND

Despite the demonstrated value of opioid overdose education and naloxone distribution (OEND) programs, uptake and utilization remains low. Accessibility to OEND is limited and traditional programs may not reach many high-risk individuals. This study evaluated the effectiveness of online opioid overdose and naloxone administration education and the impact of naloxone possession.

METHODS

Individuals with self-reported illicit use of opioids were recruited via Craigslist advertisements and completed all assessments and education online via REDCap. Participants watched a 20-minute video outlining signs of opioid overdose and how to administer naloxone. They were then randomized to either receive a naloxone kit or be given instructions on where to obtain a kit. Effectiveness of training was measured with pre- and post-training knowledge questionnaires. Naloxone kit possession, overdoses, opioid use frequency, and treatment interest were self-reported on monthly follow-up assessments.

RESULTS

Mean knowledge scores significantly increased from 6.82/9.00 to 8.22 after training (t(194)=6.85, p <0.001, 95% CI[1.00, 1.81], Cohen's d=0.85). Difference in naloxone possession between randomized groups was significant with a large effect size (p <0.001, diff=0.60, 95% CI[0.47, 0.73]). A bidirectional relationship was found between naloxone possession and frequency of opioid use. Overdoses and treatment interest were similar across possession status.

CONCLUSIONS

Overdose education is effective in online video format. Disparity in naloxone possession across groups indicates barriers to obtaining naloxone from pharmacies. Naloxone possession did not influence risky opioid use or treatment interest and its impact on frequency of use warrants further investigation.

TRIAL REGISTRATION

Clinitaltrials.gov-NCT04303000.

Beliefs and misperceptions about naloxone and overdose among U.S. laypersons: a cross-sectional study

BACKGROUND

Overdose education and naloxone distribution (OEND) to laypersons are key approaches to reduce the incidence of opioid-involved overdoses. While some research has examined attitudes toward OEND, especially among pharmacists and first responders, our understanding of what laypersons believe about overdose and naloxone is surprisingly limited. Further, some scholars have expressed concerns about the prevalence of non-evidence-based beliefs about overdose and naloxone. We designed this study to analyze the prevalence, nature, and context of beliefs about naloxone and overdose among U.S. laypersons.

METHODS

We conducted a cross-sectional study (n = 702) using Prolific.co (representative of the U.S. population by age, gender, and race). Primary outcomes were the believability of six statements about overdose/naloxone on a seven-point Likert-type scale. Five statements were unsupported, and one was supported, by current scientific evidence. We used latent profile analysis to classify participants into belief groups, then used regression to study correlates of profile classification.

RESULTS

Believability of the statements (7: extremely believable) ranged from m = 5.57 (SD = 1.38) for a scientifically supported idea (trained bystanders can reverse overdose with naloxone), to m = 3.33 (SD = 1.83) for a statement claiming opioid users can get high on naloxone. Participants were classified into three latent belief profiles: Profile 1 (most aligned with current evidence; n = 246), Profile 2 (moderately aligned; n = 351), and Profile 3 (least aligned, n = 105). Compared to Profile 1, several covariates were associated with categorization into Profiles 2 and 3, including lower trust in science (RRR = 0.36, 95%CI = 0.24-0.54; RRR = 0.21, 95%CI = 0.12-0.36, respectively), conservative political orientation (RRR = 1.41, 95%CI = 1.23-1.63; 3:RRR = 1.62, 95%CI = 1.35-1.95, respectively), and never being trained about naloxone (Profile 3: RRR = 3.37, 95%CI = 1.16-9.77).

CONCLUSIONS

Preliminary evidence suggests some U.S. laypersons simultaneously believe that bystander overdose prevention with naloxone can prevent overdose and one or more scientifically unsupported claims about naloxone/overdose. Categorization into clusters displaying such belief patterns was associated with low trust in science, conservative political orientation, and not having been trained about naloxone.

PREREGISTRATION

This cross-sectional study was preregistered prior to any data collection using the Open Science Framework: https://osf.io/c6ufv.