Facilitators and barriers to utilization of medications for opioid use disorder in primary care in South Carolina

Knowledge of medications for opioid use disorder and associated stigma among primary care professionals

BACKGROUND

Medications for opioid use disorder (MOUD) are the gold standard. However, significant barriers limit their use in the primary care setting, including limited knowledge of the medications and stigmatizing attitudes. In this study, we assess knowledge levels among primary care-aligned professionals (PCPs) currently in practice, and whether knowledge of MOUD is associated with stigma and treatment attitudes.

PARTICIPANTS AND METHODS

Using rosters from the state of Ohio licensing boards, we surveyed 403 physicians, nurse practitioners, and physician associates in 2022, on the mechanism of different MOUD, as well as stigma and treatment attitudes. To assess MOUD knowledge, we employed descriptive and bivariate statistics. We fit four linear regression models, which controlled for empathy towards patients with OUD and provider demographics to assess the relationship between MOUD knowledge and four endpoints: stigma, perceived controllability of opioid use, perceived vulnerability to opioid use disorder, and support for abstinence-only treatment.

RESULTS

43% of participants correctly identified the mechanism of all 3 medications whereas 13% of participants did not identify the mechanism of any MOUD correctly. MOUD knowledge was higher among physicians as compared to nurse practitioners and physician associates. Lower MOUD knowledge was associated with more negative attitudes towards patients with OUD and MOUD treatment.

CONCLUSION

Expanding access to MOUD treatment requires a trained and willing health-care professional (HCP) workforce. Our findings highlight considerable variation in clinician knowledge of MOUD and suggest that knowledge levels are also related to negative attitudes towards patients with OUD and MOUD. Training interventions that increase knowledge, as well as focus on stigma reduction, are critical for reducing the longstanding treatment gap for opioid use disorder.

Assessing Substance Use Disorder Symptoms with a Checklist among Primary Care Patients with Opioid Use Disorder and/or Long-Term Opioid Treatment: An Observational Study

BACKGROUND

Primary care (PC) offers an opportunity to treat opioid use disorders (OUD). The Substance Use Symptom Checklist ("Checklist") can assess DSM-5 substance use disorder (SUD) symptoms in PC.

OBJECTIVE

To test the psychometric properties of the Checklist among PC patients with OUD or long-term opioid therapy (LTOT) in Kaiser Permanente Washington (KPWA).

DESIGN

Observational study using item response theory (IRT) and differential item functioning (DIF) analyses of measurement consistency across age, sex, race and ethnicity, and receipt of treatment.

PATIENTS

Electronic health records (EHR) data were extracted for all adult PC patients visiting KPWA 3/1/15-8/30/2020 who had ≥ 1 Checklist documented and indication of either (a) clinically-recognized OUD (i.e., documented OUD diagnosis and/or OUD medication treatment) or (b) LTOT in the year prior to the checklist.

MAIN MEASURE

The Checklist includes 11 items reflecting DSM-5 criteria for SUD. We described the prevalence of 2 SUD symptoms reported on the Checklist (consistent with mild-severe DSM-5 SUD). Analyses were conducted in the overall sample and in two subsamples (clinically-recognized OUD and LTOT only).

KEY RESULTS

Among 2007 eligible patients, 39.9% endorsed ≥ 2 SUD symptoms (74.3% in the clinically-recognized OUD subsample and 13.1% in LTOT subsample). IRT indicated that a unidimensional model for the 11 checklist items had excellent fit (comparative fit index = 0.998) with high item-level discrimination parameters for the overall sample and both subsamples. DIF across age, race and ethnicity, and treatment was observed for one item each, but had minimal impact on expected number of criteria (0-11) patients endorse.

CONCLUSIONS

The Substance Use Symptom Checklist measured SUD symptoms consistent with DSM-5 conceptualization (scaled, unidimensional) in patients with clinically-recognized OUD and LTOT and had similar measurement properties across demographic subgroups. The Checklist may support symptom assessment in patients with OUD and diagnosis in patients with LTOT.

Physician Reluctance to Intervene in Addiction: A Systematic Review

Importance

The overdose epidemic continues in the US, with 107 941 overdose deaths in 2022 and countless lives affected by the addiction crisis. Although widespread efforts to train and support physicians to implement medications and other evidence-based substance use disorder interventions have been ongoing, adoption of these evidence-based practices (EBPs) by physicians remains low.

Objective

To describe physician-reported reasons for reluctance to address substance use and addiction in their clinical practices using screening, treatment, harm reduction, or recovery support interventions.

Data Sources

A literature search of PubMed, Embase, Scopus, medRxiv, and SSRN Medical Research Network was conducted and returned articles published from January 1, 1960, through October 5, 2021.

Study Selection

Publications that included physicians, discussed substance use interventions, and presented data on reasons for reluctance to intervene in addiction were included.

Data Extraction and Synthesis

Two reviewers (L.N., M.C., L.F., J.P., C.S., and S.W.) independently reviewed each publication; a third reviewer resolved discordant votes (M.C. and W.C.). This systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines and the theoretical domains framework was used to systematically extract reluctance reasons.

Main Outcomes and Measures

The primary outcome was reasons for physician reluctance to address substance use disorder. The association of reasons for reluctance with practice setting and drug type was also measured. Reasons and other variables were determined according to predefined criteria.

Results

A total of 183 of 9308 returned studies reporting data collected from 66 732 physicians were included. Most studies reported survey data. Alcohol, nicotine, and opioids were the most often studied substances; screening and treatment were the most often studied interventions. The most common reluctance reasons were lack of institutional support (173 of 213 articles [81.2%]), knowledge (174 of 242 articles [71.9%]), skill (170 of 230 articles [73.9%]), and cognitive capacity (136 of 185 articles [73.5%]). Reimbursement concerns were also noted. Bivariate analysis revealed associations between these reasons and physician specialty, intervention type, and drug.

Conclusions and Relevance

In this systematic review of reasons for physician reluctance to intervene in addiction, the most common reasons were lack of institutional support, knowledge, skill, and cognitive capacity. Targeting these reasons with education and training, policy development, and program implementation may improve adoption by physicians of EBPs for substance use and addiction care. Future studies of physician-reported reasons for reluctance to adopt EBPs may be improved through use of a theoretical framework and improved adherence to and reporting of survey development best practices; development of a validated survey instrument may further improve study results.

Factors associated with intention to implement SBI and SUD treatment: a survey of primary care clinicians in Texas enrolled in an online course

BACKGROUND

Substance use disorder (SUD) presents a range of public health challenges and consequences. Despite the prevention potential of screening and brief intervention (SBI) in the primary care setting, implementation is low. The purpose of this study was to assess associations of primary care clinicians' knowledge of SBI and SUD treatment, subjective norms, and perceived behavioral control with intention to incorporate SBI and SUD treatment into regular clinical practice.

METHODS

This online survey was administered to primary care clinicians who practice in Texas between March 1, 2021, and February 5, 2023. Survey questions were mapped to factors in the Theory of Planned Behavior and included measures of knowledge, subjective norms, and perceived behavioral controls related to SBI and SUD treatment. Intention to engage in SBI and SUD treatment was assessed as the outcome.

RESULTS

Of 645 participants included in this study, 59.5% were physicians. Knowledge was low, with less than half correctly reporting what was considered a standard drink (39.6%) and only 20% knew the correct number of alcoholic beverages considered risky drinking in 21-year-old non-pregnant women. Subjective norms, such as having colleagues within their practice support addressing SUDs, and perceived behavioral control such as having SUD screening routinized within clinic workflows, were positively associated with intention to implement SBI and SUD treatment in primary care settings.

CONCLUSIONS

Modifying knowledge gaps, subjective norms, and perceived behavioral control requires a multipronged interventional approach that blends accessible clinician training with systemic workplace enhancements and a collective shift in professional norms.

Medications for opioid use disorder in rural primary care practices: Patient and provider experiences

INTRODUCTION

The opioid epidemic has exacted a significant toll in rural areas, yet adoption of medications for opioid use disorder (MOUD) lags. The Rural Access to Medication Assisted Treatment in Pennsylvania (RAMP) Project facilitated adoption of MOUD in rural primary care clinics. The purpose of this study was to gain a better understanding of the barriers and facilitators operating at multiple levels to access or provide MOUD in rural Pennsylvania.

METHODS

In total, the study conducted 35 semi-structured interviews with MOUD patients and MOUD providers participating in RAMP. Qualitative analysis incorporated both deductive and inductive approaches. The study team coded interviews and performed thematic analysis. Using a modified social-ecological framework, themes from the qualitative interviews are organized in five nested levels: individual, interpersonal, health care setting, community, and public policy.

RESULTS

Patients and providers agreed on many barriers (e.g., lack of providers, lack of transportation, insufficient rapport and trust in patient-provider relationship, and cost, etc.); however, their interpretation of the barrier, or indicated solution, diverged in meaningful ways. Patients described their experiences in broad terms pointing to the social determinants of health, as they highlighted their lives outside of the therapeutic encounter in the clinic. Providers focused on their professional roles, responsibilities, and operations within the primary care setting.

CONCLUSIONS

Providers may want to discuss barriers to treatment related to social determinants of health with patients, and pursue partnerships with organizations that seek to address those barriers. The findings from these interviews point to potential opportunities to enhance patient experience, increase access to and optimize processes for MOUD in rural areas, and reduce stigma against people with opioid use disorder (OUD) in the wider community.

Opioid use disorder treatment and the role of New Jersey Medicaid policy changes: perspectives of office-based buprenorphine providers

Background: In the US, seventy percent of drug-related deaths are attributed to opioids. In response to the ongoing opioid crisis, New Jersey's (NJ) Medicaid program implemented the MATrx model to increase treatment access for Medicaid participants with opioid use disorder (OUD). The model's goals include increasing the number of office-based treatment providers, enhancing Medicaid reimbursement for certain treatment services, and elimination of prior authorizations for OUD medications.Objectives: To explore office-based addiction treatment providers' experiences delivering care in the context of statewide policy changes and their perspectives on treatment access changes and remaining barriers.Methods: This qualitative study used purposive sampling to recruit office-based New Jersey medications for opioid use disorder (MOUD) providers . Twenty-two providers (11 females, 11 males) discussed treatment experiences since the policy changes in 2019, including evaluations of the current state of OUD care in New Jersey and perceived outcomes of the MATrx model policy changes.Results: Providers reported the MOUD climate in NJ improved as Medicaid implemented policies intended to reduce barriers to care and increase treatment access. Elimination of prior authorizations was noted as important, as it reduced provider burden and allowed greater focus on care delivery. However, barriers remained, including stigma, pharmacy supply issues, and difficulty obtaining injectable or non-generic medication formulations.Conclusion: NJ policies may have improved access to care for Medicaid beneficiaries by reducing barriers to care and supporting providers in prescribing MOUD. Yet, stigma and lack of psychosocial supports still need to be addressed to further improve access and care quality.

Internal and Environmental Predictors of Physician Practice Use of Screening and Medications for Opioid Use Disorders

Medications for opioid use disorder (MOUD) remain highly inaccessible despite demonstrated effectiveness. We examine the extent of screening for opioid use and availability of MOUD in a national cross-section of multi-physician primary care and multispecialty practices. Drawing on an existing framework to characterize the internal and environmental context, we assess socio-technical, organizational-managerial, market-based, and state-regulation factors associated with the use of opioid screening and offering of MOUD in a practice. A total of 26.2% of practices offered MOUD, while 69.4% of practices screened for opioid use. Having advanced health information technology functionality was positively associated with both screening for opioid use and offering MOUD in a practice, while access to on-site behavioral clinicians was positively associated with offering MOUD in adjusted models. These results suggest that improving access to information and expertise may enable physician practices to respond more effectively to the nation's ongoing opioid epidemic.

Increasing Access to Buprenorphine for Opioid Use Disorder in Primary Care: an Assessment of Provider Incentives

BACKGROUND

Primary care providers (PCPs) are essential to increasing access to office-based buprenorphine medication treatment for opioid use disorder (B-MOUD). Barriers to B-MOUD prescribing are well-documented, but there is little information regarding incentives to overcome these barriers.

OBJECTIVE

To identify optimal incentives for PCPs to promote B-MOUD prescribing and compare incentive preferences across provider and practice characteristics.

DESIGN

We surveyed PCPs using best-worst scaling (BWS) to prioritize seven potential incentives for B-MOUD prescribing (monetary compensation, paid vacation, protected time, professional development, reduced workload, service recognition, clinical resources). We then used a direct elicitation approach to determine preferred incentive levels (e.g., monetary thresholds) and types (e.g., specific clinical resources).

PARTICIPANTS

Primary care physicians and advanced practice providers (APPs) at a large Department of Veterans Affairs healthcare system.

MAIN MEASURES

B-MOUD prescribing incentive preferences and relative preference levels using descriptive statistics and conditional logistic regression with relative importance scale transformation (coefficients sum to 100, higher coefficient=greater importance).

KEY RESULTS

Fifty-three PCPs responded (73% response), including 47% APPs and 36% from community-based clinics. Reduced workload (relative importance score=26.8), protected time (18.7), and clinical resources (16.8) were significantly more preferred (Ps < 0.001) than professional development (10.5), paid vacation (10.3), or service recognition (1.5). Relative importance of monetary compensation varied between physicians (12.6) and APPs (17.5) and between PCPs located at a medical center (11.4) versus community clinic (22.3). APPs were more responsive than physicians to compensation increases of $5000 and $12,000 but less responsive to $25,000; trends were similar for medical center versus community clinic PCPs. The most frequently requested clinical resource was on-demand consult access to an addiction specialist.

CONCLUSIONS

Interventions promoting workload reductions, protected time, and clinical resources could increase access to B-MOUD in primary care. Monetary incentives may be additionally needed to improve B-MOUD prescribing among APPs and within community clinics.

A scoping review of barriers and facilitators to the integration of substance use treatment services into US mainstream health care

Background

Following the national implementation of the Affordable Care Act (ACA) in 2014, barriers still exist that limit the adoption of substance use treatment (SUT) services in mainstream health care (MHC) settings in the United States. This study provides an overview of current evidence on barriers and facilitators to integrating various SUT services into MHC.

Methods

A systematic search was conducted with the following databases: "PubMed including MEDLINE", "CINAHL", "Web of Science", "ABI/Inform", and "PsycINFO." We identified barriers and/or facilitators affecting patients, providers, and programs/systems.

Results

Of the 540 identified citations, 36 were included. Main barriers were identified for patients (socio-demographics, finances, confidentiality, legal impact, and disinterest), providers (limited training, lack of time, patient satisfaction concerns, legal implications, lack of access to resources or evidence-based information, and lack of legal/regulatory clarity), and programs/systems (lack of leadership support, lack of staff, limited financial resources, lack of referral networks, lack of space, and lack of state-level support). Also, we recognized key facilitators pertaining to patients (trust for providers, education, and shared decision making), providers (expert supervision, use of support team, training with programs like Extension for Community Health Outcomes (ECHO), and receptivity), and programs/systems (leadership support, collaboration with external agencies, and policies e.g., those expanding the addiction workforce, improving insurance access and treatment access).

Conclusions

This study identified several factors influencing the integration of SUT services in MHC. Strategies for improving SUT integration in MHC should address barriers and leverage facilitators related to patients, providers, and programs/systems.

The Role of Context in Integrating Buprenorphine into a Drop-In Center in Kampala, Uganda, Using the Consolidated Framework for Implementation Research

BACKGROUND

Although Africa has long borne the brunt of the human immunodeficiency virus (HIV) epidemic, until recently, the continent has been considered largely free of illicit drug use and injection drug use in particular. In Uganda, the number of people who use or inject drugs (PWUD and PWID, respectively) has increased, and PWID are a key population at high risk for human immunodeficiency virus (HIV) and hepatitis C virus (HCV) infection. However, harm reduction practices, including providing clean injection equipment and medication-assisted treatment (MAT), have only recently been piloted in the country. This project aims to integrate buprenorphine into a harm reduction drop-in center (DIC).

METHODS

The Consolidated Framework for Implementation Research was used to guide our preparations to integrate buprenorphine into existing practices at a harm reduction DIC. We conducted key informant interviews with members of a community advisory board and DIC staff to document this process, its successes, and its failures.

RESULTS

Results indicate that criminalization of drug use and stigmatization of PWUD challenged efforts to provide buprenorphine treatment in less regulated community settings.

CONCLUSIONS

DIC staff and their commitment to harm reduction and advocacy facilitated the process of obtaining necessary approvals.

"You're Not Supposed to be on it Forever": Medications to Treat Opioid Use Disorder (MOUD) Related Stigma Among Drug Treatment Providers and People who Use Opioids

Opioid use disorder (OUD) through prescription opioid misuse, heroin, and illicitly manufactured fentanyl use has increased dramatically in the past 20 years. Medications to treat opioid use disorder (MOUD) is considered the gold standard for treating opioid use disorders but uptake remains low. Recently, Madden has argued that in addition to the stigma assigned to substance use and people with SUD, MOUDs also are stigmatized, a process she labels intervention stigma to distinguish it from condition stigma (ie, stigma of SUD) . In this paper, we examine MOUD related stigma from the perspective of people who use opioids (PWUO) and key informants who play some role in providing or referring people to drug treatment. Providers and PWOU often viewed MOUD as one drug replacing another which discouraged providers from recommending and PWUO from accepting MOUD. MOUD stigma was also expressed by providers' exaggerated fear of MOUD diversion. The extent to which MOUD was accepted as a legitimate treatment varied and influenced treatment providers' perceptions of the goals of drug treatment and the length of time that MOUD should be used with many feeling that MOUD should only be used as a temporary tool while PWOU work on other treatment goals. This led to tapering off of MOUD after some time in treatment. Some providers also expressed mistrust of MOUD stemming from their previous experiences with the over-prescription of opioids for pain which led to the current crisis. Results from this study suggest that the proportion of PWUO on MOUD is unlikely to increase without addressing MOUD stigma among drug treatment providers and PWUO seeking treatment.

Buprenorphine Waiver Attitudes Among Primary Care Providers

BACKGROUND

Despite efforts to improve access to Medications for Opioid Use Disorder (MOUD), such as buprenorphine, the number of opioid overdoses in the United States continues to rise. In April 2021, the Department of Health and Human Services removed the mandatory training requirement to obtain a buprenorphine waiver; the goal was to encourage more providers to prescribe buprenorphine, thus improving access. Little is known about the attitudes on buprenorphine prescribing after this policy change.

OBJECTIVE

The primary objective was to assess attitudes among primary care providers toward the removal of the buprenorphine waiver training requirement. A secondary objective was to identify other barriers to prescribing buprenorphine.

METHODS

We conducted a survey between September 15 and October 13, 2021 to assess the overall beliefs on the effectiveness of MOUD and attitudes toward the removal of the waiver training, current knowledge of buprenorphine, current practice styles related to screening for and treating OUD, and attitudes toward prescribing buprenorphine in the future. This survey was sent to 890 Mayo Clinic primary care providers in 5 US states.

RESULTS

One hundred twenty-three respondents (13.8%) completed the survey; 35.8% respondents agreed that the removal of the waiver training was a positive step. These respondents expressed a greater familiarity with the different formulations, pharmacology, and titration of buprenorphine. This group was also more likely to prescribe (or continue to prescribe) buprenorphine in the future. Approximately one-third (34.4%) of respondents reported perceived institutional support in prescribing buprenorphine. This group expressed greater confidence in diagnosing OUD, had greater familiarity with the different formulations, pharmacology, and titration of buprenorphine, and was more likely to prescribe (or continue to prescribe) buprenorphine in the future. Respondents who have been in practice for 11 to 20 years since completion of training were most likely to refer all OUD patients to specialists.

CONCLUSIONS

Results of our survey suggests that simply removing the mandatory waiver training requirement is insufficient in positively changing attitudes toward buprenorphine prescribing. A key barrier is the perceived lack of institutional support. Future studies investigating effective ways to provide such support may help improve providers' willingness to prescribe buprenorphine.

Health professionals' attitudes toward medications for opioid use disorder

BACKGROUND

Research has shown that medications, especially opioid agonist treatments, are an effective way to treat opioid use disorder (OUD); however, negative attitudes held by health professionals contribute to their underutilization. Methods: A 23-year review of studies that examined health professionals' attitudes toward medications for OUD (MOUD) was conducted to describe the current state of knowledge and to inform future research and interventions. Results: Studies examined attitudes toward the use of methadone, buprenorphine, and naltrexone among various types of health professionals: prescribers, non-prescribing clinicians, pharmacists, and administrators. The characteristics and findings of the included studies were reviewed and synthesized. Findings indicate that attitudes toward MOUD affect access and utilization by influencing prescribing practices, referrals, and adoption within programs. Exposure, knowledge, and treatment orientation were found to be important factors related to attitudes toward MOUD across multiple studies of various types of health professionals. Conclusions: To increase access and utilization, continued efforts are needed to increase positive attitudes toward MOUD among various types of health professionals. Findings indicate that interventions should seek to increase knowledge about MOUD and foster interprofessional communication related to MOUD, especially between prescribers and behavioral health providers.