Literature Collection

BACKGROUND: Millions of people with substance use disorders (SUDs) need, but do not receive, treatment. Delivering SUD treatment in primary care settings could increase access to treatment because most people visit their primary care doctors at least once a year, but evidence-based SUD treatments are underutilized in primary care settings. We used an organizational readiness intervention comprised of a cluster of implementation strategies to prepare a federally qualified health center to deliver SUD screening and evidence-based treatments (extended-release injectable naltrexone (XR-NTX) for alcohol use disorders, buprenorphine/naloxone (BUP/NX) for opioid use disorders and a brief motivational interviewing/cognitive behavioral -based psychotherapy for both disorders). This article reports the effects of the intervention on key implementation outcomes. METHODS: To assess changes in organizational readiness we conducted pre- and post-intervention surveys with prescribing medical providers, behavioral health providers and general clinic staff (N = 69). We report on changes in implementation outcomes: acceptability, perceptions of appropriateness and feasibility, and intention to adopt the evidence-based treatments. We used Wilcoxon signed rank tests to analyze pre- to post-intervention changes. RESULTS: After 18 months, prescribing medical providers agreed more that XR-NTX was easier to use for patients with alcohol use disorders than before the intervention, but their opinions about the effectiveness and ease of use of BUP/NX for patients with opioid use disorders did not improve. Prescribing medical providers also felt more strongly after the intervention that XR-NTX for alcohol use disorders was compatible with current practices. Opinions of general clinic staff about the appropriateness of SUD treatment in primary care improved significantly. CONCLUSIONS: Consistent with implementation theory, we found that an organizational readiness implementation intervention enhanced perceptions in some domains of practice acceptability and appropriateness. Further research will assess whether these factors, which focus on individual staff readiness, change over time and ultimately predict adoption of SUD treatments in primary care.

IMPORTANCE: Given that COVID-19 and recent natural disasters exacerbated the shortage of medication for opioid use disorder (MOUD) services and were associated with increased opioid overdose mortality, it is important to examine how a community's ability to respond to natural disasters and infectious disease outbreaks is associated with MOUD access. OBJECTIVE: To examine the association of community vulnerability to disasters and pandemics with geographic access to each of the 3 MOUDs and whether this association differs by urban, suburban, or rural classification. DESIGN, SETTING, AND PARTICIPANTS: This cross-sectional study of zip code tabulation areas (ZCTAs) in the continental United States excluding Washington, DC, conducted a geospatial analysis of 2020 treatment location data. EXPOSURES: Social vulnerability index (US Centers for Disease Control and Prevention measure of vulnerability to disasters or pandemics). MAIN OUTCOMES AND MEASURES: Drive time in minutes from the population-weighted center of the ZCTA to the ZCTA of the nearest treatment location for each treatment type (buprenorphine, methadone, and extended-release naltrexone). RESULTS: Among 32 604 ZCTAs within the continental US, 170 within Washington, DC, and 20 without an urban-rural classification were excluded, resulting in a final sample of 32 434 ZCTAs. Greater social vulnerability was correlated with longer drive times for methadone (correlation, 0.10; 95% CI, 0.09 to 0.11), but it was not correlated with access to other MOUDs. Among rural ZCTAs, increasing social vulnerability was correlated with shorter drive times to buprenorphine (correlation, -0.10; 95% CI, -0.12 to -0.08) but vulnerability was not correlated with other measures of access. Among suburban ZCTAs, greater vulnerability was correlated with both longer drive times to methadone (correlation, 0.22; 95% CI, 0.20 to 0.24) and extended-release naltrexone (correlation, 0.15; 95% CI, 0.13 to 0.17). CONCLUSIONS AND RELEVANCE: In this study, communities with greater vulnerability did not have greater geographic access to MOUD, and the mismatch between vulnerability and medication access was greatest in suburban communities. Rural communities had poor geographic access regardless of vulnerability status. Future disaster preparedness planning should match the location of services to communities with greater vulnerability to prevent inequities in overdose deaths.

IMPORTANCE: Racial and ethnic disparities persist across key health and substance use treatment outcomes for mothers and infants. The use of medications, such as methadone or buprenorphine, for the treatment of opioid use disorder (OUD) has been associated with improvements in the outcomes of mothers and infants; however, only half of all pregnant women with OUD receive these medications. The extent to which maternal race or ethnicity is associated with the use of medication to treat OUD, the duration of the use of medication to treat OUD, and the type of medication used to treat OUD during pregnancy are unknown. OBJECTIVE: To examine the extent to which maternal race and ethnicity is associated with the use of medications for the treatment of OUD in the year before delivery among pregnant women with OUD. DESIGN, SETTING, AND PARTICIPANTS: This retrospective cohort study used a linked population-level statewide data set of pregnant women with OUD who delivered a live infant in Massachusetts between October 1, 2011, and December 31, 2015. Of 274 234 total deliveries identified, 5247 deliveries among women with indicators of having OUD were included in the analysis. Maternal race and ethnicity were defined as white non-Hispanic, black non-Hispanic, or Hispanic based on self-reported data on birth certificates. MAIN OUTCOMES AND MEASURES: Main outcomes were the receipt of any medication for OUD, the consistency of the use of medication (at least 6 continuous months of use before delivery, inconsistent use, or no use) for the treatment of OUD, and the type of medication (methadone or buprenorphine) used to treat OUD. Multivariable models were adjusted for maternal sociodemographic characteristics, comorbidities, and any significant interactions between the covariates and race and ethnicity. RESULTS: The sample included 5247 pregnant women with OUD who delivered a live infant in Massachusetts during the study period. The mean (SD) maternal age at delivery was 28.7 (5.0) years; 4551 women (86.7%) were white non-Hispanic, 462 women (8.8%) were Hispanic, and 234 women (4.5%) were black non-Hispanic. A total of 3181 white non-Hispanic women (69.9%) received any type of medication for the treatment of OUD in the year before delivery compared with 228 Hispanic women (49.4%) and 108 black non-Hispanic women (46.2%). Compared with white non-Hispanic women, black non-Hispanic and Hispanic women had a substantially lower likelihood (adjusted odds ratio [aOR], 0.37; 95% CI, 0.28-0.49 and aOR, 0.42; 95% CI, 0.35-0.52, respectively) of receiving any medication for the treatment of OUD. Stratification by maternal age identified greater disparities among younger women. Black non-Hispanic and Hispanic women also had a lower likelihood (aOR, 0.24; 95% CI, 0.17-0.35 and aOR, 0.34; 95% CI, 0.27-0.44, respectively) of consistent use of medication for the treatment of OUD compared with white non-Hispanic women. With respect to the type of medication used to treat OUD, black non-Hispanic and Hispanic women had a lower likelihood (aOR, 0.60; 95% CI, 0.40-0.90 and aOR, 0.77; 95% CI, 0.58-1.01, respectively) than white non-Hispanic women of receiving buprenorphine treatment compared with methadone treatment. CONCLUSIONS AND RELEVANCE: This study found racial and ethnic disparities in the use of medications to treat OUD during pregnancy, with black non-Hispanic and Hispanic women significantly less likely to use medications consistently or at all compared with white non-Hispanic women. Further investigation of patient, clinician, treatment program, and system-level factors associated with these findings is warranted.

OBJECTIVE:  Individual patient-level measures of adverse social determinants of health are associated with neonatal opioid withdrawal syndrome (NOWS), but the relative impact of community-level adverse social determinants of health remains to be defined. We examined the association between community-level social vulnerability and NOWS among pregnant individuals receiving buprenorphine for opioid use disorder. STUDY DESIGN:  We conducted a secondary analysis of an established cohort of pregnant individuals and their infants participating in a multidisciplinary prenatal/addiction care program from 2013 to 2021. Addresses were geocoded using ArcGIS and linked at the census tract to the Centers for Disease Control and Prevention 2018 Social Vulnerability Index (SVI), incorporating 15 census variables. The primary exposure was the SVI as a composite measure of community-level social vulnerability, and secondarily, individual scores for four thematic domains (socioeconomic status, household composition and disability, minority status and language, and housing type and transportation). The primary outcome was a clinical diagnosis of NOWS defined as withdrawal requiring pharmacological treatment following buprenorphine exposure. RESULTS:  Among 703 pregnant individuals receiving buprenorphine, 39.8% (280/703) of infants were diagnosed with NOWS. Among our patinets, those who were nulliparous, had post-traumatic stress disorder, a term birth (≥ 37 weeks) and had a male infant were more likely to have an infant diagnosed with NOWS. Individuals with and without an infant diagnosed with NOWS had similarly high community-level social vulnerability per composite SVI scores (mean [standard deviation]: 0.6 [0.4-0.7] vs. 0.6 [0.4-0.7], p = 0.2]. In adjusted analyses, SVI, as a composite measure as well as the four domains, was not associated with NOWS diagnosis. CONCLUSION:  Among pregnant persons receiving buprenorphine enrolled in a multidisciplinary prenatal and addition care program, while individual risk factors that measure adverse social determinants of health were associated with an NOWS diagnosis in the infant, community-level social vulnerability as measured by the SVI was not associated with the outcome. KEY POINTS: · Community-level SVI was not associated with neonatal opioid use disorder.. · Certain individual risk factors were identified as being associated with NOWS.. · Homogeneity of composite SVI scores may have led to lack of significant findings..

BACKGROUND: In the US, medication assisted treatment, particularly with office-based buprenorphine, has been an important component of opioid dependence treatment among patients with iatrogenic addiction to opioid analgesics. The predictors of initiating buprenorphine for addiction among opioid analgesic patients have not been well-described. METHODS: We conducted a time-to-event analysis using data from the North Carolina (NC) Prescription Drug Monitoring Program (PDMP). Our outcome of interest was time-to-initiation of sublingual buprenorphine. Our study population was a prospective cohort of all state residents receiving a full-agonist opioid analgesic between 2011 and 2015. Predictors of initiation of sublingual buprenorphine examined included: age, gender, cumulative pharmacies and prescribers utilized, cumulative opioid intensity (defined as cumulative opioid exposure divided by duration of opioid exposure), and benzodiazepine dispensing. FINDINGS: Of 4.3 million patients receiving opioid analgesics in NC between 2011 and 2015 (accumulated 8.30 million person-years of follow-up), and a total of 28,904 patients initiated buprenorphine formulations intended for addiction treatment (overall rate 3.48 per 1,000 person-years). In adjusted multivariate models, the utilization of 3 or more pharmacies (HR: 2.93; 95% CI: 2.82, 3.05) or 6 or more controlled substance prescribers (HR: 12.09; 95% CI: 10.76, 13.57) was associated with buprenorphine initiation. A dose-response relationship was observed for cumulative opioid intensity (HR in highest decile relative to lowest decile: 5.05; 95% CI: 4.70, 5.42). Benzodiazepine dispensing was negatively associated with buprenorphine initiation (HR: 0.63; 95% CI: 0.61, 0.65). CONCLUSIONS: Opioid analgesic patients utilizing multiple prescribers or pharmacies are more likely to initiate sublingual buprenorphine. This finding suggests that patients with multiple healthcare interactions are more likely to be treated for high-risk opioid use, or may be more likely to be identified and treated for addiction. Future research should utilize prescription monitoring program data linked to electronic health records to include diagnosis information in analytic models.

IMPORTANCE: Opioid use disorder (OUD) is a public health crisis in the United States, but only 5% of US physicians have obtained a Drug Addiction Treatment Act (DATA) waiver to prescribe buprenorphine to treat OUD. Increasing the number of primary care physicians (PCPs) who have obtained the waiver and are able to treat patients with OUD is of utmost importance. OBJECTIVE: To determine whether a multimodal educational intervention of PCPs is associated with an increase in the number of buprenorphine waivers obtained and patients initiated into treatment in a primary care setting. DESIGN, SETTING, AND PARTICIPANTS: This quality improvement study was conducted in primary health care clinics within a large, integrated health care system. Patients included those who had received a diagnosis of OUD, and had Providence Health Plan Medicare or Medicaid insurance. Included PCPs were divided into 2 groups: those who obtained a DATA waiver after an education intervention (uptake PCPs) vs those who did not obtain a DATA waiver (nonuptake PCPs). The study took place between January 1, 2016, and December 31, 2017. Data analyses were conducted from December 2017 to August 2019. EXPOSURES: Multimodal educational intervention including video, in-person visits to clinical practitioner meetings by physician champions, and a primary care toolkit with training resources and clinic protocols. MAIN OUTCOMES AND MEASURES: The number of new uptake clinics where at least 1 PCP obtained a DATA waiver, the number of new PCPs with DATA waivers, the number of patients receiving a buprenorphine prescription, and the number of patients who received 12 or more weeks of treatment. RESULTS: Twenty-seven of 41 invited clinics implemented the intervention, and 620 PCPs were included. The number of PCPs with DATA waivers increased from 5 PCPs (0.8%) to 44 PCPs (7.1%), and the number of clinics with at least 1 buprenorphine prescriber increased from 3 clinics (7.3%) to 17 clinics (41.5%). In total, 213 patients underwent buprenorphine treatment, and 140 patients received 12 or more weeks of treatment. A total of 646 patients had Providence Health Plan Medicare or Medicaid insurance and were eligible for the study (mean [SD] age, 61.7 [16.5] years; 410 [63.5%] women). There was a statistically significant difference in treatment with buprenorphine between patients with uptake PCPs vs patients with nonuptake PCPs (23 patients [16.4%] vs 18 patients [3.5%]; odds ratio, 4.61 [95% CI, 2.32-10.51]; P = .01) after the intervention. CONCLUSIONS AND RELEVANCE: In this quality improvement study, an educational intervention was associated with an increase in the number of PCPs and clinics that could provide buprenorphine treatment for OUD and with an increase in the patients who were able to access care with medications for OUD.

BACKGROUND: Lack of access to buprenorphine to treat Opioid Use Disorder is profound in rural areas where over half of small and remote rural counties have no buprenorphine prescriber. To increase prescribing, an online, Medication of Opioid Use Disorder (MOUD) Extensions for Community Healthcare Outcomes (ECHO) was developed that addressed known barriers to the startup and expansion of treatment. The objective of the present study was to determine the relationship between participating in MOUD ECHO sessions and prescribing of buprenorphine for OUD in rural primary care. METHODS: Using non-random, rolling-recruitment from Feb 2018 to October of 2021, all rural primary care clinics in New Mexico were contacted via phone call and fax to recruit providers (Physicians, Nurse Practitioners, and Physician Assistants) who had no or limited buprenorphine experience to enroll in this study. Participation in the MOUD ECHO was tracked across the 12 week series. Start-up and expansion of buprenorphine treatment was measured every 3 months for up to 2 years using 5 implementation benchmarks spanning training completion, obtaining licensure, prescribing and adding patients. Using a dose-response intention to treat type analysis, associations between number of sessions and benchmark achievement were analyzed using logistic regression. RESULTS: Eighty providers were enrolled, mostly female (66%) white (82%), non-Hispanic (82%), and mostly nurse practitioners (51%) or MDs (38%). Achievement of prescribing benchmarks at 6 months was significantly increased by attendance at MOUD ECHO sessions including obtaining training and licensure Odds Ratio (OR = 1.24; P = .001); starting to prescribe (OR = 1.31; P = .004), and adding patients (OR = 1.14; P = .025). CONCLUSIONS: This study provides compelling evidence that MOUD ECHO participation may significantly increase the number of providers implementing this treatment and adding patients onto their panels. The dose-response approach helps address current gaps in ECHO research that call for more rigorous examination of the ECHO model's impact on provider practice improvements.

IMPORTANCE: Federal emergency authorities were invoked during the COVID-19 pandemic to expand clinical telehealth for opioid use disorder (OUD). OBJECTIVE: To examine the association of the receipt of telehealth services and medications for OUD (MOUD) with fatal drug overdoses before and during the pandemic. DESIGN, SETTING, AND PARTICIPANTS: This cohort study used exploratory longitudinal data from 2 cohorts (prepandemic cohort: September 1, 2018, to February 29, 2020; pandemic cohort: September 1, 2019, to February 28, 2021) of Medicare Fee-for-Service beneficiaries aged 18 years or older initiating an episode of OUD-related care using Medicare Fee-for-Service data from the Centers for Medicare & Medicaid Services and National Death Index data from the Centers for Disease Control and Prevention. Data analysis was performed from September 19 to October 17, 2022. EXPOSURES: Prepandemic vs pandemic cohort demographic, medical, substance use, and psychiatric characteristics. MAIN OUTCOMES AND MEASURES: Receipt of OUD-related telehealth services, receipt of MOUD, and fatal drug overdose. RESULTS: The prepandemic cohort comprised 105 162 beneficiaries (58.1% female; 67.6% aged 45-74 years). The pandemic cohort comprised 70 479 beneficiaries (57.1% female; 66.3% aged 45-74 years). The rate of all-cause mortality was higher in the pandemic cohort (99.9 per 1000 beneficiaries; 7041 deaths) than in the prepandemic cohort (76.8 per 1000; 8076 deaths) (P < .001). The rate of fatal drug overdoses was higher in the pandemic cohort (5.1 per 1000 beneficiaries; n = 358) than in the prepandemic cohort (3.7 per 1000; n = 391) (P < .001). The percentage of deaths due to a fatal drug overdose was similar in the prepandemic (4.8%) and pandemic (5.1%) cohorts (P = .49). In multivariable analysis of the pandemic cohort, receipt of OUD-related telehealth was associated with a significantly lower adjusted odds ratio (aOR) for fatal drug overdose (aOR, 0.67; 95% CI, 0.48-0.92) as was receipt of MOUD from opioid treatment programs (aOR, 0.41; 95% CI, 0.25-0.68) and receipt of buprenorphine in office-based settings (aOR, 0.62; 95% CI, 0.43-0.91) compared with those not receiving MOUD; receipt of extended-release naltrexone in office-based settings was not associated with lower odds for fatal drug overdose (aOR, 1.16; 95% CI, 0.41-3.26). CONCLUSIONS AND RELEVANCE: This cohort study found that, among Medicare beneficiaries initiating OUD-related care during the COVID-19 pandemic, receipt of OUD-related telehealth services was associated with reduced risk for fatal drug overdose, as was receipt of MOUD from opioid treatment programs and receipt of buprenorphine in office-based settings. Strategies to expand provision of MOUD, increase retention in care, and address co-occurring physical and behavioral health conditions are needed.

BACKGROUND: The opioid epidemic is a major public health issue associated with significant overdose deaths. Effective treatments exist, such as the medication buprenorphine, but are not widely available. This narrative review examines the attitudes of primary care providers (PCPs) toward prescribing buprenorphine. METHODS: Narrative review of 20 articles published after the year 2000, using the Consolidated Framework for Implementation Research (CFIR) to organize the findings. RESULTS: Three of the five CFIR domains ("Intervention Characteristics," "Outer Setting," "Inner Setting") were strongly represented in our analysis. Providers were concerned about the clientele associated with buprenorphine, diversion, and their self-efficacy in prescribing the medication. Some believed that buprenorphine does not belong in the discipline of primary care. Other barriers included philosophical objections and stigma toward substance use disorders. Notably, two studies reported a shift in attitudes once physicians prescribed buprenorphine to actual patients. CONCLUSIONS: Negative attitudes toward buprenorphine encompassed multi-layered concerns, ranging from skepticism about the medication itself, the behaviors of patients with opioid use disorders, and beliefs regarding substance use disorders more generally. We speculate, however, that negative attitudes may be improved by tailoring support strategies that address providers' self-efficacy and level of knowledge.