Buprenorphine retention in primary care

Association Between Buprenorphine Adherence Trajectories, Health Outcomes, and Health Care Costs Among Medicaid Enrollees

OBJECTIVES

To identify distinct buprenorphine adherence trajectories among patients with opioid use disorder (OUD) and evaluate their associations with health events and health care costs.

METHODS

A retrospective longitudinal cohort study was conducted using the Merative Multi-state Medicaid database. The study analyzed 12,244 Medicaid enrollees aged 18-64 years who were diagnosed with OUD and initiated buprenorphine treatment between July 1, 2017 and June 30, 2019. Group-based trajectory models were used to identify adherence patterns during the first 180 days of treatment. Cox proportional hazard models were used to evaluate the associations between adherence trajectories and time to opioid overdose, substance use disorder-related hospitalization, and all-cause hospitalization. Generalized linear models were used to compare health care costs across trajectories.

RESULTS

Four buprenorphine adherence trajectories were identified: completely adherent (50.8%), initially adherent with later decline (13.6%), increasing adherence with later decline (9.9%), and continuously declining nonadherence (25.8%). Compared to the completely adherent group, patients in other groups had a higher risk of opioid overdose, hospitalization and increased health care costs. The continuously declining nonadherent group demonstrated the highest risks, with an opioid overdose hazard ratio (HR) of 1.92 (95% CI, 1.46-2.39), all-cause hospitalization of HR of 1.71 (95% CI: 1.58-1.85), and substance use disorder (SUD)-related hospitalization HR of 2.01 (95% CI: 1.82-2.15). Additionally, healthcare costs were notably higher compared to the completely adherent group, with an increase of $1482.45 (95% CI: $745.45-$2756.01) in the increasing adherence with later decline group and $1698.46 (95% CI: $432.57-$3087.78) in the continuously declining nonadherence groups.

CONCLUSIONS

Almost half of Medicaid beneficiaries with OUD exhibited varying degrees of nonadherence to buprenorphine within 180 days of treatment initiation. This nonadherence was associated with adverse clinical outcomes and increased health care costs. Health care providers should consider adherence challenges when designing therapeutic interventions with buprenorphine.

Outpatient-Based Opioid Treatment Engagement and Attendance: A Prospective Cohort Study of Homeless-Experienced Adults

BACKGROUND

The opioid overdose epidemic disproportionately impacts people experiencing homelessness. Outpatient-based opioid treatment (OBOT) programs have been established in homeless health care settings across the USA, but little is known about the success of these programs in engaging and retaining this highly marginalized patient population in addiction care.

OBJECTIVE

To evaluate predictors of initial engagement and subsequent attendance in a homeless-tailored OBOT program.

DESIGN

Prospective cohort study with 4 months of follow-up.

PARTICIPANTS

A total of 148 homeless-experienced adults (≥18 years) who newly enrolled in the Boston Healthcare for the Homeless Program (BHCHP) OBOT program over a 1-year period (1/6/2022-1/5/2023).

MAIN MEASURES

The primary outcomes were (1) initial OBOT program engagement, defined as having ≥2 additional OBOT visits within 1 month of OBOT enrollment, and (2) subsequent OBOT program attendance, measured monthly from months 2 to 4 of follow-up.

KEY RESULTS

The average age was 41.7 years (SD 10.2); 23.6% were female, 35.8% were Hispanic, 12.8% were non-Hispanic Black, and 43.9% were non-Hispanic White. Over one-half (57.4%) were initially engaged. OBOT program attendances during months 2, 3, and 4 were 60.8%, 50.0%, and 41.2%, respectively. One-quarter (24.3%) were initially engaged and then attended the OBOT program every month during the follow-up period. Participants in housing or residential treatment programs (vs. unhoused; adjusted odds ratios (aORs) = 2.52; 95% CI = 1.17-5.44) and those who were already on or initiated a medication for opioid use disorder (OUD) (aOR = 6.53; 95% CI = 1.62-26.25) at the time of OBOT enrollment had higher odds of engagement. Older age (aOR = 1.74 per 10-year increment; 95% CI = 1.28-2.38) and initial engagement (aOR = 3.50; 95% CI = 1.86-6.59) conferred higher odds of attendance.

CONCLUSIONS

In this study, over half initially engaged with the OBOT program, with initial engagement emerging as a strong predictor of subsequent OBOT program attendance. Interventions aimed at enhancing initial OBOT program engagement, including those focused on housing and buprenorphine initiation, may improve longer-term outcomes in this marginalized population.

Buprenorphine Receipt and Retention for Opioid Use Disorder Following an Initiative to Increase Access in Primary Care

OBJECTIVES

Buprenorphine, a medication for opioid use disorder (OUD), is underutilized in general medical settings. Further, it is inequitably received by racialized groups and persons with comorbidities. The Veterans Health Administration launched an initiative to increase buprenorphine receipt in primary care. The project's objective was to identify patient-related factors associated with buprenorphine receipt and retention in primary care clinics (n = 18) participating in the initiative.

METHODS

Retrospective cohort quality improvement evaluation of patients 18 years or older with 2 or more primary care visits in a 1-year period and an OUD diagnosis in the year before the first primary care visit (index date). Buprenorphine receipt was the proportion of patients with OUD who received 1 or more buprenorphine prescriptions from primary care providers during the post-index year and retention the proportion who received buprenorphine for 180 days or longer.

RESULTS

Of 2880 patients with OUD seen in primary care, 11.7% (95% confidence interval [CI], 10.6%-12.9%) received buprenorphine in primary care, 58.2% (95% CI, 52.8%-63.3%) of whom were retained on buprenorphine for 180 days or longer. Patients with alcohol use disorder (adjusted odds ratio [AOR], 0.39; 95% CI, 0.27-0.57), nonopioid drug use disorder (AOR, 0.64; 95% CI, 0.45-0.93), and serious mental illness (AOR, 0.60; 95% CI, 0.37-0.97) had lower buprenorphine receipt. Those with an anxiety disorder had higher buprenorphine receipt (AOR, 1.42; 95% CI, 1.04-1.95). Buprenorphine receipt (AOR, 0.55; 95% CI, 0.35-0.87) and 180-day retention (AOR, 0.40; 95% CI, 0.19-0.84) were less likely among non-Hispanic Black patients.

CONCLUSIONS

Further integration of addiction services in primary care may be needed to enhance buprenorphine receipt for patients with comorbid substance use disorders, and interventions are needed to address disparities in receipt and retention among non-Hispanic Black patients.

96-week retention in treatment with extended-release subcutaneous buprenorphine depot injections among people with opioid dependence: Extended follow-up after a single-arm trial

BACKGROUND

The most recent formulation of buprenorphine treatment is extended-release depot injections (BUP-XR) that are administered subcutaneously by health care professionals. This study aimed to observe treatment outcomes of BUP-XR delivered in standard practice during a 96-week follow-up period in a community setting.

METHODS

This study is an extension of the CoLAB study, a prospective single-arm, multicentre, open label trial (N=100, 7 sites in Australia) among people with opioid dependence who received monthly injections of BUP-XR to evaluate the retention in treatment. Participants were followed for 96 weeks, comprising 48 weeks of the CoLAB study followed by a 48-week extension.

RESULTS

Of 100 participants at baseline, 47 were retained on BUP-XR at 96 weeks. The median time retained on monthly depot was 90 weeks. Heroin use (adjusted OR=0.19, P=0.012) in the month prior to baseline was associated with lower odds of retention on BUP-XR. Older age at first opioid use (adjusted OR= 1.08, P=0.009) and longer duration in OAT at baseline (adjusted OR= 1.12, P=0.001) were associated with increased retention. Prevalence of past four-weeks opioid use was estimated at 4% at 96 weeks of treatment (prevalence 0.04, 95%CI: 0.00-0.11) compared to 15% at baseline. Quality of life and medication treatment satisfaction improved over time for those retained in treatment.

CONCLUSION

This is one of the few studies to describe long term (96 week) retention in treatment with BUP-XR in a community setting. It displayed retention rates with 47% of participants completing 96 weeks of treatment with BUP-XR. Patient reported outcomes suggest improvements in client wellbeing.

FUNDING

Indivior.

Meta-analysis of primary care delivered buprenorphine treatment retention outcomes

Background: Currently, the capacity to provide buprenorphine treatment (BT) is not sufficient to treat the growing number of people in the United States with opioid use disorder (OUD). We sought to examine participant retention in care rates of primary care delivered BT programs and to describe factors associated with retention/attrition for participants receiving BT in this setting.Objectives: A PRISMA-guided search of various databases was performed to identify the articles focusing on efficacy of BT treatment and OUD.Method: A systematic literature search identified 15 studies examining retention in care in the primary care setting between 2002 and 2020. Random effects meta-regression were used to identify retention rates across studies.Results: Retention rates decreased across time with a mean 0.52 rate at one year. Several factors were found to be related to retention, including: race, use of other drugs, receipt of counseling, and previous treatment with buprenorphine.Conclusions: While we only investigate BT through primary care, our findings indicate retention rates are equivalent to the rates reported in the specialty care literature. More work is needed to examine factors that may impact primary care delivered BT specifically and differentiate participants that may benefit from care delivered in specialty over primary care as well as the converse.

Peer recovery coaching for comprehensive HIV, hepatitis C, and opioid use disorder management: The CHORUS pilot study

Introduction

Amidst a surge in HIV and hepatitis C virus (HCV) infections in persons who use drugs, medications that effectively prevent HIV and treat opioid use disorder and HCV remain underutilized.

Methods

We developed a 6-month peer recovery coaching intervention (brief motivational interviewing followed by weekly virtual or in-person coaching) and collected data on uptake of medications for opioid use disorder (MOUD), HIV pre-exposure prophylaxis (PrEP), and HCV treatment. The primary outcomes were intervention acceptability and feasibility.

Results

At a Boston substance use disorder bridge clinic, we enrolled 31 HIV-negative patients who used opioids. Participants reported high intervention satisfaction at 6 months (95% "satisfied" or "very satisfied"). At study completion, 48% of the participants were on MOUD, 43% who met CDC guidelines were on PrEP, and 22% with HCV were engaged with treatment.

Conclusions

A peer recovery coaching intervention is feasible and acceptable, with positive preliminary findings regarding MOUD, PrEP and HCV treatment uptake.

Buprenorphine treatment receipt characteristics and retention among people who inject drugs at Integrated Care Centers in India

BACKGROUND

India is facing overlapping opioid injection and HIV epidemics among people who inject drugs (PWID) in several cities. Integrated Care Centers (ICCs) provide single-venue HIV and substance use services to PWID. We evaluated PWID engagement in daily observed buprenorphine treatment at 7 ICCs to inform interventions.

METHODS

We analyzed 1-year follow-up data for PWID initiating buprenorphine between 1 January - 31 December 2018, evaluating receipt frequency, treatment interruptions (no buprenorphine receipt for 60 consecutive days with subsequent re-engagement), and drop-out (no buprenorphine receipt for 60 consecutive days without re-engagement). Using descriptive statistics, we explored differences between ICCs in the opioid-endemic Northeast region and ICCs in the emerging opioid epidemic North/Central region. We used a multivariable logistic regression model to determine predictors of treatment drop-out by 6 months.

RESULTS

1312 PWID initiated buprenorphine (76% North/Central ICCs vs. 24% Northeast ICCs). 31% of PWID in North/Central, and 25% in Northeast ICCs experienced ≥ 1 treatment interruption in 1 year. Over 6 months, 48% of PWID in North/Central vs. 60% in Northeast ICCs received buprenorphine ≤ 2 times/week (p < 0.0001). A third of PWID in North/Central vs. half in Northeast ICCs experienced treatment drop-out by 6 months (p < 0.001). In the multivariable model, living in Northeast cities was associated with increased odds of drop-out while counseling receipt was associated with decreased odds.

CONCLUSIONS

Retention among PWID initiating buprenorphine at ICCs was comparable to global reports. However, regional heterogeneity in retention, and low daily buprenorphine receipt suggest patient-centered interventions adapted to regional contexts are urgently needed.

Differential effect of cannabis use on opioid agonist treatment outcomes: Exploratory analyses from the OPTIMA study

INTRODUCTION

Conflictual evidence exists regarding the effects of cannabis use on the outcomes of opioid agonist therapy (OAT). In this exploratory analysis, we examined the effect of recent cannabis use on opioid use, craving, and withdrawal symptoms, in individuals participating in a trial comparing flexible buprenorphine/naloxone (BUP/NX) take-home dosing model to witnessed ingestion of methadone.

METHODS

We analyzed data from a multi-centric, pragmatic, 24-week, open label, randomized controlled trial in individuals with prescription-type opioid use disorder (n = 272), randomly assigned to BUP/NX (n = 138) or methadone (n = 134). The study measured last week cannabis and opioid use via timeline-follow back, recorded at baseline and every two weeks during the study. Craving symptoms were measured using the Brief Substance Craving Scale at baseline, and weeks 2, 6, 10, 14, 18 and 22. The study measured opioid withdrawal symptoms via Clinical Opiate Withdrawal Scale at treatment initiation and weeks 2, 4, and 6.

RESULTS

The mean maximum dose taken during the study was 17.3 mg/day (range = 0.5-32 mg/day) for BUP/NX group and 67.7 mg/day (range = 10-170 mg/day) in the methadone group. Repeated measures generalized linear mixed models demonstrated that cannabis use in the last week (mean of 2.3 days) was not significantly associated with last week opioid use (aβ ± standard error (SE) = -0.06 ± 0.04; p = 0.15), craving (aβ ± SE = -0.05 ± 0.08, p = 0.49), or withdrawal symptoms (aβ ± SE = 0.09 ± 0.1, p = 0.36). Bayes factor (BF) for each of the tested models supported the null hypothesis (BF < 0.3).

CONCLUSIONS

The current study did not demonstrate a statistically significant effect of cannabis use on outcomes of interest in the context of a pragmatic randomized-controlled trial. These findings replicated previous results reporting no effect of cannabis use on opioid-related outcomes.

Use of a sequential multiple assignment randomized trial to test contingency management and an integrated behavioral economic and mindfulness intervention for buprenorphine-naloxone medication adherence for opioid use disorder

BACKGROUND

Buprenorphine-naloxone is a medication shown to improve outcomes for individuals seeking treatment for opioid use disorder (OUD); however, outcomes are limited by low medication adherence rates. This is especially true during the early stages of treatment.

METHODS

The present study proposes to utilize a sequential multiple assignment randomized trial design to compare two psychological interventions targeting buprenorphine-naloxone adherence: (1) contingency management (CM) and (2) brief motivational interviewing plus substance-free activities session plus mindfulness (BSM). Participants will be N = 280 adults who present to a university-based addictions clinic seeking treatment for OUD. Participants will be randomized to condition to receive 4 sessions of their assigned intervention (CM or BSM). Participants who are adherent, defined as attending physician appointments and having buprenorphine present in urine toxicology, will enter maintenance intervention for an additional 6 months. Those who are not adherent will be re-randomized to receive either the other intervention or both interventions. Follow-up will occur at 8 months post-randomization.

CONCLUSIONS

This novel design will examine the benefit of sequential treatment decisions following non-adherence. The primary outcome of this study is buprenorphine-naloxone medication adherence, as assessed by physician visit attendance and presence of buprenorphine in urine. Results will elicit the relative efficacy of CM and BSM compared to one another and whether keeping the initial treatment approach when adding the alternative approach for initially non-adherent individuals is beneficial.

TRIAL REGISTRATION

ClinicalTrials.gov NCT04080180.

Cost-effectiveness of office-based buprenorphine treatment for opioid use disorder

AIM

To assess the effectiveness and cost-effectiveness of office-based buprenorphine treatment (OBBT) in the U.S.

DESIGN SETTING AND PARTICIPANTS

We performed a model-based analysis of buprenorphine treatment provided in a primary care setting for the U.S. population with OUD.

INTERVENTION

Buprenorphine treatment provided in a primary care setting.

MEASUREMENTS

Fatal and nonfatal overdoses and deaths over five years, discounted lifetime quality-adjusted life years (QALYs), costs.

FINDINGS

For a cohort of 100,000 untreated individuals who enter OBBT, approximately 9350 overdoses would be averted over five years; of these, approximately 900 would have been fatal. OBBT compared to no treatment would yield 1.07 incremental lifetime QALYs per person at an incremental cost of $17,000 per QALY gained when using a healthcare perspective. If OBBT is half as effective and twice as expensive as assumed in the base case, the incremental cost when using a healthcare perspective is $25,500 per QALY gained. Using a limited societal perspective that additionally includes patient costs and criminal justice costs, OBBT is cost-saving compared to no treatment even under pessimistic assumptions about efficacy and cost.

CONCLUSIONS

Expansion of OBBT would be highly cost-effective compared to no treatment when considered from a healthcare perspective, and cost-saving when reduced criminal justice costs are included. Given the continuing opioid crisis in the U.S., expansion of this care option should be a high priority.

A Prescription Digital Therapeutic to Support Unsupervised Buprenorphine Initiation for Patients With Opioid Use Disorder: Protocol for a Proof-of-Concept Study

BACKGROUND

Home-based (unsupervised) buprenorphine initiation is considered safe and effective, yet many patients report barriers to successful treatment initiation. Prescription digital therapeutics (PDTs) are software-based disease treatments regulated by the US Food and Drug Administration (FDA). The reSET-O PDT was authorized by the FDA in 2018 and delivers behavioral treatment for individuals receiving buprenorphine for opioid use disorder (OUD). A prototype PDT (PEAR-002b) designed for use with reSET-O was developed to assist in unsupervised buprenorphine initiation.

OBJECTIVE

The primary objective of this pilot study is to evaluate the acceptability of PEAR-002b in individuals with OUD who use it to support buprenorphine initiation, their unsupervised buprenorphine initiation success rate, and their medication adherence.

METHODS

Ten adults with OUD will be recruited for acceptability and feasibility testing. Outcomes will be assessed using week-1 visit attendance, participant interviews and satisfaction surveys, and urine drug screening (UDS). Three tools will be used in the study: PEAR-002b, reSET-O, and EmbracePlus. PEAR-002b includes a new set of features designed for use with reSET-O. The mechanism of action for the combined PEAR-002b and reSET-O treatment is a program of medication dosing support during week 1 of the initiation phase, cognitive behavioral therapy, and contingency management. During the medication initiation phase, participants are guided through a process to support proper medication use. PEAR-002b advises them when to take their buprenorphine based on provider inputs (eg, starting dose), self-reported substance use, and self-reported withdrawal symptoms. This study also administers the EmbracePlus device, a medical-grade smartwatch, to pilot methods for collecting physiologic data (eg, heart rate and skin conductance) and evaluate the device's potential for use along with PDTs that are designed to improve OUD treatment initiation. Home buprenorphine initiation success will be summarized as the proportion of participants attending the post-buprenorphine initiation visit (week 1) and the proportion of participants who experience buprenorphine initiation-related adverse events (eg, precipitated withdrawal). Acceptability of PEAR-002b will be evaluated based on individual participants' ratings of ease of use, satisfaction, perceived helpfulness, and likelihood of recommending PEAR-002b. Medication adherence will be evaluated by participant self-report data and confirmed by UDS. UDS data will be summarized as the mean of individual participants' proportion of total urine samples testing positive for buprenorphine or norbuprenorphine over the 4-week study.

RESULTS

This project was funded in September 2019. As of September 2022, participant enrollment is ongoing.

CONCLUSIONS

This is the first study to our knowledge to develop a PDT that assists with unsupervised buprenorphine initiation with the intent to better support patients and prescribers during this early phase of treatment. This pilot study will assess the acceptability and utility of a digital therapeutic to assist individuals with OUD with unsupervised buprenorphine initiation.

TRIAL REGISTRATION

ClinicalTrials.gov NCT05412966; https://clinicaltrials.gov/ct2/show/NCT05412966.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

PRR1-10.2196/43122.

Developing A Rapid Transfer from Opioid Full Agonist to Buprenorphine: "Ultrarapid Micro-Dosing" Proof of Concept

Buprenorphine/naloxone has been shown to be effective for treating opioid use disorder (OUD). However, the traditional method of induction requires a patient to be in moderate-to-severe withdrawal, which is challenging, time-consuming, and a common reason for leaving against medical advice. Induction strategies that minimize the severity and duration of patient discomfort while enabling patients to reach therapeutic doses during short hospital admissions can mitigate difficulties when inducing a patient on buprenorphine/naloxone. This case-series illustrates two patients with OUD using illicit fentanyl, who were successfully started on buprenorphine/naloxone using 24-hour and 6-hour micro-dosing induction protocol. During induction, the patients were up-titrated to a therapeutic dose through ultrarapid micro-dosing with ongoing use of short-acting opioids. Both patients reached therapeutic doses experiencing minimal levels of withdrawal. This case-series is a proof of concept for the use of a buprenorphine/naloxone ultrarapid micro-induction protocol for inpatients with OUD. By reducing the length of induction and precluding the need for withdrawal, this method offers several advantages over previously published inductions protocols and can improve the accessibility of buprenorphine/naloxone to patients with OUD.

The association between buprenorphine treatment duration and mortality: a multi-site cohort study of people who discontinued treatment

BACKGROUND AND AIMS

Buprenorphine is an effective medication for opioid use disorder that reduces mortality; however, many patients are not retained in buprenorphine treatment, and an optimal length of treatment after which patients can safely discontinue treatment has not been identified. This study measured the association between buprenorphine treatment duration and all-cause mortality among patients who discontinued treatment. Secondary objectives were to measure the association between treatment duration and drug overdose and opioid-related overdoses.

DESIGN

Multi-site cohort study.

SETTING

Eight US health systems.

PARTICIPANTS

Patients who initiated and discontinued buprenorphine treatment between 1 January 2012 and 31 December 2018 (n = 6550). Outcomes occurring after patients discontinued buprenorphine treatment were compared between patients who initiated and discontinued treatment after 8-30, 31-90, 91-180, 181-365 and > 365 days.

MEASUREMENTS

Covariate data were obtained from electronic health records (EHRs). Mortality outcomes were derived from EHRs and state vital statistics. Non-fatal opioid and drug overdoses were obtained from diagnostic codes. Four sites provided cause-of-death data to identify fatal drug and opioid-related overdoses. Adjusted frailty regression was conducted on a propensity-weighted cohort to assess associations between duration of the final treatment episode and outcomes.

FINDINGS

The mortality rate after buprenorphine treatment was 1.82 per 100 person-years (n = 191 deaths). In regression analyses with > 365 days as the reference group, treatment duration was not associated with all-cause mortality and drug overdose (P > 0.05 for both). However, compared with > 365 days of treatment, 91-180 days of treatment was associated with increased opioid overdose risk (hazard ratio = 2.94, 95% confidence interval = 1.11-7.79).

CONCLUSIONS

Among patients who discontinue buprenorphine treatment, there appears to be no treatment duration period associated with a reduced risk for all-cause mortality. Patients who discontinue buprenorphine treatment after 91-180 days appear to be at heightened risk for opioid overdose compared with patients who discontinue after > 365 days of treatment.

Systematic review and meta-analysis of changes in quality of life following initiation of buprenorphine for opioid use disorder

BACKGROUND

People with opioid use disorder (OUD) experience lower quality of life (QoL) than the general population, but buprenorphine treatment for OUD could help improve QoL of individuals with OUD. Thus, we conducted a systematic review and meta-analysis of the impact of buprenorphine on QoL among people with OUD.

METHODS

Seven databases were searched through August 2020. We included English-language studies with pre- and post- QoL assessments internationally. Standardized mean differences were calculated for five domains of QoL measures using a random effects model for correlated effect sizes with robust variance estimation. Meta-regression was used to assess variation in effect sizes based on QoL domain, treatment, and patient factors.

RESULTS

Twenty-one peer-reviewed studies from twelve countries were included. Only three studies included a no-treatment control group and five studies assigned groups using randomization. Improvements between baseline and follow-up were observed across all five domains of QoL measures (overall, physical, psychological, social, and environmental). The certainty of evidence was low for all domains of QoL, and very low for environmental QoL. We did not observe differences in the effect of buprenorphine on QoL by QoL domain, duration, dose, participant characteristics, or adjunctive counseling services.

CONCLUSIONS

Buprenorphine treatment likely improves overall, physical, psychological, and social QoL, and may improve environmental QoL, for individuals with OUD. Findings are limited by study quality, including lack of control groups and incomplete reporting. Future studies with more rigorous methods and comprehensive reporting are needed.

Impact of state and trait anxiety severity on retention and phase advancement in an outpatient buprenorphine treatment program

BACKGROUND AND OBJECTIVES

Comorbid anxiety is common among buprenorphine patients and may lead to poorer outcomes. This study aimed to examine the prevalence and impact of anxiety severity, measured by the State-Trait Anxiety Inventory (STAI) form Y-1 & Y2 scale, on treatment outcomes (retention and phase advancement) among outpatient buprenorphine-treated patients.

METHODS

A retrospective chart review of 94 patients admitted to an outpatient buprenorphine treatment program was conducted. Patients were dichotomized into high and low severity groups based upon an STAI State Anxiety (S-Anxiety) and STAI Trait Anxiety (T-Anxiety) score ≥60 and <60, respectively. Associations of anxiety severity on successful phase advancement and retention during the first 90 days of treatment were assessed.

RESULTS

Twenty-one of 94 (22%) participants reported high S-Anxiety and had a significantly greater likelihood of phase advancement (OR = 12.80, 95% CI = [1.19, 136.71]) than those with low S-Anxiety. No significant associations were found between either S-Anxiety or T-Anxiety and treatment retention. Current alcohol use and UDS negative test results for THC or amphetamines were each associated with phase advancement. THC negative UDS test results were associated with 90-day treatment retention.

DISCUSSION AND CONCLUSIONS

Contrary to prior reports, buprenorphine patients with higher state anxiety severity demonstrated similar retention and more rapid phase advancement than those with lower state anxiety severity.

SCIENTIFIC SIGNIFICANCE

To our knowledge, this is the first study to quantify current anxiety severity using the STAI scale and evaluate its impact on treatment outcomes among buprenorphine-treated patients.

Strategies for Transfer From Methadone to Buprenorphine for Treatment of Opioid Use Disorders and Associated Outcomes: A Systematic Review

OBJECTIVES

To review the currently available evidence on transfer strategies from methadone to sublingual buprenorphine used in clinical trials and observational studies of medication for opioid use disorder treatment, and to consider whether any strategies yield better clinical outcomes than others.

METHODS

Six medical and public health databases were searched for articles and conference abstracts. The Cochrane Central Register of Controlled Trials and the World Health Organization International Clinical Trials Registry Platform were used to identify unpublished trial results. Records were dually screened, and data were extracted and checked independently. Results were summarized qualitatively and, when possible, analyzed quantitatively.

RESULTS

Eighteen studies described transfer from methadone to buprenorphine. Transfer protocols were extremely varied. Most studies reported successful rates of transfer, even among studies involving transfer from high methadone doses, although lower pretransfer methadone dose was significantly associated with higher rate of successful transfer. Precipitated withdrawal was not reported frequently. A range of innovative approaches to transfer from methadone to buprenorphine remains untested.

CONCLUSIONS

Few studies have used designs that enable comparison of different approaches to transfer patients from methadone to buprenorphine. Most international clinical guidelines provide recommendations consistent with the available evidence. However, clinical guidelines should be perceived as providing "guidance" rather than "protocols," and clinicians and patients need to exercise judgment when attempting transfers.

Systematic review and meta-analysis of retention in treatment using medications for opioid use disorder by medication, race/ethnicity, and gender in the United States

BACKGROUND AND AIMS

There is mounting evidence that opioid use disorder is experienced differently by people of different genders and race/ethnicity groups. Similarly, in the US access to specific medications for opioid use is limited by gender and race/ethnicity. This study aims to evaluate if gender or race/ethnicity is associated with different rates of treatment retention in the US, for each of three medications used to treat opioid use disorder.

METHODS

A systematic search was conducted using PubMed, CINHAL, and PsychINFO, databases. All studies that provided a ratio of those retained in treatment at a specified time in terms of gender and/or race/ethnicity and medication were included. Variables were created to assess the effects of time in treatment, recruited sample, required attendance at concurrent psychosocial treatment, and adherence to strict rules of conduct for continuation in treatment on retention. Meta-analytical and meta-regression methods were used to compare studies on the ratio of those who completed a specific time in treatment by race/ethnicity group and by gender.

RESULTS

Nineteen articles that provided the outcome variable of interest were found (11 buprenorphine, six methadone, and two naltrexone). Meta-analyses found that treatment retention was similar for all gender and racial/ethnic groups for all three medications. Meta-regression found that those of the African American group who were recruited into buprenorphine treatment were retained significantly longer than African Americans in buprenorphine treatment who were studied retrospectively. Also, both genders had significantly lower retention in methadone treatment when there was the additional requirement of psychosocial therapy.

Clinical and Cognitive Effects of Computer Assisted Cognitive Remediation Method in Turkish Men with Opioid Use Disorder: A Randomized Controlled Trial

Objective: Substance use disorders are associated with significant cognitive impairments causing many individual or social problems besides poor treatment outcomes. The cognitive remediation method is effective in so many neuropsychiatric disorders. This study aimed to evaluate the effects of this method among individuals with opioid use disorder. Method:60 patients diagnosed with opioid use disorder under buprenorphine-naloxone treatment and who accepted the informed consent were included. Seven patients left the study initially. 53 male patients were randomly assigned to receive treatment in the usual control or cognitive remediation-intervention group. The intervention group completed 3 to 4 sessions a week, 8 different exercises in each session, for 4 weeks, a total of 12 sessions, individually. Addiction Profile Indeks, Barrat Impulsivity Scale-SF, CGI, and Delay Discounting scores were measured before and after the 1 month cognitive Remediation practices. Three months later, patients were contacted, and their remission status was evaluated. Results: In the intervention group; 17(89.5%) people had remission and 2(10.5%) people had relapse. In the control group, 7(31.8%) individuals had remission, and 15(68.2%) had relapsed at the end of the 3 months. It was determined that craving, addiction severity, and self-reported and behavioral impulsivity values decreased while the improvement in treatment response was higher in the intervention group. Conclusion: Our results showed that the computer-assisted cognitive remediation method, in addition to buprenorphine-naloxone treatment, improves treatment response, increases remission, and has positive clinical and cognitive effects on individuals with opioid use disorder. It suggests that cognitive remediation practices can be added to the treatment programs for addiction.

Five-year budget impact of a prescription digital therapeutic for patients with opioid use disorder

BACKGROUND

Opioid use disorder (OUD) is associated with high healthcare resource utilization (HCRU) and costs. reSET-O is an FDA-cleared prescription digital therapeutic that delivers neurobehavioral therapy as an adjunct to treatment-as-usual (TAU; buprenorphine, face-to-face counseling, and contingency management).

METHODS

A budget impact model was developed to evaluate reSET-O as an adjunct to TAU in OUD for a 1 million-member US mixed health plan over a 5-year time horizon. Model inputs included treatment costs and medical costs of hospitalizations, partial hospitalizations, intensive care unit stays, and emergency department visits.

RESULTS

The base-case results and the alternative scenario analysis showed the addition of reSET-O was projected to result in consistently lower total yearly costs vs TAU and no treatment. The estimated total and per member per month (PMPM) budget impact over 5 years was -$763,026 and -$0.0116, respectively. When the upper range of cost estimates was used, the total and PMPM budget impacts over 5 years were -$2,481,563 and -$0.0378, respectively. Sensitivity analysis showed results were most sensitive to the proportion of patients untreated.

CONCLUSION

The introduction of reSET-O in addition to TAU for OUD has the potential to reduce healthcare resource utilization and costs from 12 weeks up to 5 years.

Retention in care for persons with opioid use disorder transitioning from sublingual to injectable buprenorphine

INTRODUCTION

In the current overdose epidemic, effective treatments for opioid use disorders (OUD), including innovations in medication delivery such as extended-release formulations, have the potential to improve treatment access and reduce treatment discontinuation. This study assessed treatment retention in a primary care-based, extended-release buprenorphine program.

METHODS

The study recruited individuals (n = 92) who transitioned from sublingual buprenorphine to extended-release buprenorphine (BUP-XR) in 2018-2019. The study defined the primary outcome, treatment retention, as three or more consecutive, monthly BUP-XR injections following the transition to BUP-XR in this retrospective chart review.

RESULTS

Participants' mean age was 38 years old and 67% were male. The average duration of sublingual buprenorphine prior to transition was 17.1 (±28.1) months. Three months after transition, 48% of extended-release buprenorphine patients had discontinued BUP-XR treatment. Persons with chronic pain were more likely, and those who had used heroin in the past month less likely to continue BUP-XR. Mean months on sublingual buprenorphine prior to BUP-XR initiation was 24.3 (±32.5) months for people who received 3+ post-induction injections compared to only 8.9 (±19.5) months for those who did not (p = .009).

CONCLUSIONS

Extended-release buprenorphine discontinuation was high in a real-world setting. Retention continues to represent a major obstacle to treatment effectiveness, and programs need interventions with even newer MOUD formulations.

Analysis of genetic and clinical factors associated with buprenorphine response

BACKGROUND

Buprenorphine, approved for treating opioid use disorder (OUD), is not equally efficacious for all patients. Candidate gene studies have shown limited success in identifying genetic moderators of buprenorphine treatment response.

METHODS

We studied 1616 European-ancestry individuals enrolled in the Million Veteran Program, of whom 1609 had an ICD-9/10 code consistent with OUD, a 180-day buprenorphine treatment exposure, and genome-wide genotype data. We conducted a genome-wide association study (GWAS) of buprenorphine treatment response [defined as having no opioid-positive urine drug screens (UDS) following the first prescription]. We also examined correlates of buprenorphine treatment response in multivariable analyses.

RESULTS

Although no variants reached genome-wide significance, 6 loci were nominally significant (p < 1 × 10-5), four of which were located near previously characterized genes: rs756770 (ADAMTSL2), rs11782370 (SLC25A37), rs7205113 (CRISPLD2), and rs13169373 (LINC01947). A higher maximum daily buprenorphine dosage (aOR = 0.98; 95 %CI: 0.97, 0.995), greater number of UDS (aOR = 0.97; 95 %CI: 0.96, 0.99), and history of hepatitis C (HCV) infection (aOR = 0.71; 95 %CI: 0.57, 0.88) were associated with a reduced odds of buprenorphine response. Older age (aOR: 1.01; 95 %CI: 1.000, 1.02) was associated with increased odds of buprenorphine response.

CONCLUSIONS

This study had limited statistical power to detect genetic variants associated with a complex human phenotype like buprenorphine treatment response. Meta-analysis of multiple data sets is needed to ensure adequate statistical power for a GWAS of buprenorphine treatment response. The most robust phenotypic predictor of buprenorphine treatment response was intravenous drug use, a proxy for which was HCV infection.

The Need for Biochemical Testing for Alcohol in Integrated Addiction Treatment Settings During the Opioid Epidemic

As the opioid crisis drives expansion of integrated opioid use disorder (OUD) treatment programs in generalist settings, these programs will contend with significant rates of co-occurring alcohol use. The authors present a brief literature review and commentary regarding nondisordered and disordered alcohol use in OUD treatment settings and biochemical detection techniques. Biochemical testing for alcohol in integrated OUD treatment settings is both important for detecting alcohol use disorder and feasible. Breathalyzer testing may assist with management of acutely intoxicated patients. Biochemical testing for alcohol is an important part of integrated OUD treatment. More research is needed on the impact of alcohol use on OUD treatment outcomes and the role of breathalyzer testing in management of intoxicated patients in the outpatient setting.

An Effective and Safe Novel Treatment of Opioid Use Disorder: Unilateral Transcranial Photobiomodulation

Background: The opioid epidemic is a global tragedy even with current treatments, and a novel, safe, and effective treatment would be welcomed. We report here our findings from our second randomized controlled trial to evaluate unilateral transcranial photobiomodulation as a treatment for opioid use disorder. Methods: We enrolled 39 participants with active opioid cravings at 2 sites, 19 received the active treatment which consisted of a 4-min twice weekly (every 3 or 4 days) application of a light-emitting diode at 810 nm with an irradiance of 250 mW/cm2 and a fluence of 60 J/cm2 to the forehead over either the left or right dorsolateral prefrontal cortex with a fluence to the brain of 2.1 J/cm2. Twenty participants received a sham treatment with the same device with foil over the bulb. The side of the treatment was based on Dual-Brain Psychology, which posits that one hemisphere is more affected by past maltreatments and is more prone to anxiety and drug cravings that the other hemisphere. We treated the hemisphere with the more positive hemispheric emotional valence (HEV) by 2 tests for HEV. Results: Our primary outcome was changes in pre-treatment opioid craving scale (OCS) minus baseline, and we found using a mixed model that the active group had a highly significant treatment * time benefit over the sham group, p < 0.0001, effect size at the last follow-up of 1.5. The active treatment benefited those not on buprenorphine as well as those not on it. The TimeLine Follow Back measure of opioid use was significantly better in the actively treated group, p = 0.0001, with an effect size of 0.45. We observed no adverse effects. Conclusion: Active unilateral transcranial photobiomodulation to the brain hemisphere with the better HEV was better than sham in the reduction of opioid cravings and opioid use to a very significant degree in a RCT of 39 participants at 2 independent sites. In the active group those on buprenorphine and those not on it both had improvements in cravings over the study. No adverse responses were reported in either group. ClinicalTrials.gov Identifier: NCT04340622.

Mobile Telemedicine for Buprenorphine Treatment in Rural Populations With Opioid Use Disorder

IMPORTANCE

The demand for medications for opioid use disorder (MOUD) in rural US counties far outweighs their availability. Novel approaches to extend treatment capacity include telemedicine (TM) and mobile treatment on demand; however, their combined use has not been reported or evaluated.

OBJECTIVE

To evaluate the use of a TM mobile treatment unit (TM-MTU) to improve access to MOUD for individuals living in an underserved rural area.

DESIGN, SETTING, AND PARTICIPANTS

This quality improvement study evaluated data collected from adult outpatients with a diagnosis of OUD enrolled in the TM-MTU initiative from February 2019 (program inception) to June 2020. Program staff traveled to rural areas in a modified recreational vehicle equipped with medical, videoconferencing, and data collection devices. Patients were virtually connected with physicians based more than 70 miles (112 km) away. Data analysis was performed from June to October 2020.

INTERVENTION

Patients received buprenorphine prescriptions after initial teleconsultation and follow-up visits from a study physician specialized in addiction psychiatry and medicine.

MAIN OUTCOMES AND MEASURES

The primary outcome was 3-month treatment retention, and the secondary outcome was opioid-positive urine screens. Exploratory outcomes included use of other drugs and patients' travel distance to treatment.

RESULTS

A total of 118 patients were enrolled in treatment, of whom 94 were seen for follow-up treatment predominantly (at least 2 of 3 visits [>50%]) on the TM-MTU; only those 94 patients' data are considered in all analyses. The mean (SD) age of patients was 36.53 (9.78) years, 59 (62.77%) were men, 71 (75.53%) identified as White, and 90 (95.74%) were of non-Hispanic ethnicity. Fifty-five patients (58.51%) were retained in treatment by 3 months (90 days) after baseline. Opioid use was reduced by 32.84% at 3 months, compared with baseline, and was negatively associated with treatment duration (F = 12.69; P = .001). In addition, compared with the nearest brick-and-mortar treatment location, TM-MTU treatment was a mean of 6.52 miles (range, 0.10-58.70 miles) (10.43 km; range, 0.16-93.92 km) and a mean of 10 minutes (range, 1-49 minutes) closer for patients.

CONCLUSIONS AND RELEVANCE

These data demonstrate the feasibility of combining TM with mobile treatment, with outcomes (retention and opioid use) similar to those obtained from office-based TM MOUD programs. By implementing a traveling virtual platform, this clinical paradigm not only helps fill the void of rural MOUD practitioners but also facilitates access to underserved populations who are less likely to reach traditional medical settings, with critical relevance in the context of the COVID-19 pandemic.

Craving mediates the association between momentary pain and illicit opioid use during treatment for opioid-use disorder: an ecological momentary assessment study

AIM

To assess the role of momentary pain on opioid craving and illicit opioid use among individuals receiving opioid agonist treatment.

DESIGN

Observational study using ecological momentary assessment.

SETTING

The National Institute of Drug Abuse Intramural Research Program in the United States.

PARTICIPANTS

Fifty-six adults who qualified for opioid agonist treatment.

MEASUREMENTS

Participants completed randomly prompted assessments of pain severity, stress, negative mood, opioid craving and illicit opioid use for a mean of 66 days [standard deviation (SD) = 27]. Urine samples were collected two to three times/week throughout.

FINDINGS

Almost 70% of participants reported moderate average pain severity in the past 24 hours at intake and 35% of participants reported chronic pain. There were no significant differences in percent of opioid-positive urine samples (P = 0.73) and average level of opioid craving during the study period (P = 0.91) among opioid agonist treatment only patients versus opioid agonist treatment patients with chronic pain. However, momentary pain severity significantly predicted concurrent opioid craving [B = 0.02, 95% confidence interval (CI) = 0.01, 0.04], over and above stress and negative mood. Momentary opioid craving, in turn, significantly predicted illicit opioid use that was assessed in the next moment [odds ratio (OR) = 1.72, 95% CI = 1.12, 2.64), while controlling for autocorrelation and the effects of pain, negative mood and stress. Momentary opioid craving significantly mediated the prospective association between momentary pain and illicit opioid use (95% CI = 0.003, 0.032). Exploratory analysis revealed that momentary pain severity also significantly moderated the momentary association between stress and opioid craving (B = 0.02, 95% CI = 0.00, 0.04), such that when momentary pain severity increased, the association between the two intensified.

CONCLUSIONS

Among people receiving opioid agonist treatment, momentary pain appears to be indirectly associated with illicit opioid use via momentary opioid craving.

Office-Based Addiction Treatment Retention and Mortality Among People Experiencing Homelessness

Importance

People experiencing homelessness have been disproportionately affected by the opioid overdose crisis. To mitigate morbidity and mortality, several office-based addiction treatment (OBAT) programs designed for this population have been established across the US, but studies have not yet evaluated their outcomes.

Objective

To evaluate treatment retention and mortality in an OBAT program designed specifically for individuals experiencing homelessness with opioid use disorder (OUD).

Design, Setting, and Participants

A retrospective cohort study was conducted in the Boston Health Care for the Homeless Program (BHCHP). Participants included all adult patients (N = 1467) who had 1 or more OBAT program encounter at BHCHP from January 1 through December 31, 2018. Data analysis was conducted from January 13 to December 14, 2020.

Exposures

Sociodemographic, clinical, and addiction treatment-related characteristics were abstracted from the BHCHP electronic health record.

Main Outcomes and Measures

The primary outcome was all-cause mortality, identified by linkage to the Massachusetts Department of Public Health vital records. Multivariable Cox proportional hazards regression analyses were performed to evaluate baseline and time-varying variables associated with all-cause mortality. Secondary addiction treatment-related outcomes were abstracted from the electronic health record and included (1) BHCHP OBAT program retention, (2) buprenorphine continuation and adherence verified by toxicology testing, and (3) opioid abstinence verified by toxicology testing.

Results

Of 1467 patients in the cohort, 1046 were men (71.3%) and 731 (49.8%) were non-Hispanic White; mean (SD) age was 42.2 (10.6) years. Continuous retention in the OBAT program was 45.2% at 1 month, 21.7% at 6 months, and 11.3% at 12 months. Continuous buprenorphine adherence was 41.5% at 1 month, 17.6% at 6 months, and 10.2% at 12 months, and continuous opioid abstinence was 28.3% at 1 month, 6.1% at 6 months, and 2.9% at 12 months. The all-cause mortality rate was 29.0 deaths per 1000 person-years, with 51.8% dying from drug overdose. Past-month OBAT program attendance was associated with lower mortality risk (adjusted hazard ratio, 0.34; 95% CI, 0.21-0.55).

Conclusions and Relevance

Mortality rates were high in this cohort of addiction treatment-seeking homeless and unstably housed individuals with OUD. Although continuous OBAT program retention was low, past-month attendance in care was associated with reduced mortality risk. Future work should examine interventions to promote increased OBAT attendance to mitigate morbidity and mortality in this vulnerable population.

A Mobile Health App to Support Patients Receiving Medication-Assisted Treatment for Opioid Use Disorder: Development and Feasibility Study

Background

Opioid use disorder (OUD) is a public health crisis with more than 2 million people living with OUD in the United States. Medication-assisted treatment (MAT) is an evidence-based approach for the treatment of OUD that relies on a combination of behavioral therapy and medication. Less than half of those living with OUD are accessing this treatment. Mobile technology can enhance the treatment of chronic diseases in readily accessible and cost-effective ways through self-monitoring and support.

Objective

The aim of this study is to describe the adaptation of a mobile platform for patients undergoing treatment for OUD and preliminary pilot testing results.

Methods

Our study was conducted with patient and provider participants at the University of Virginia MAT clinic and was approved by the institutional review board. The formative phase included semistructured interviews to understand the needs of patients with OUD, providers’ perspectives, and opportunities for MAT support via a mobile app. A second round of formative interviews used mock-ups of app features to collect feedback on feature function and desirability. Formative participants’ input from 16 interviews then informed the development of a functional smartphone app. Patient participants (n=25) and provider participants (n=3) were enrolled in a 6-month pilot study of the completed platform. Patient app use and usability interviews, including a system usability score and open-ended questions, were completed 1 month into the pilot study. Open-ended responses were analyzed for prevalent themes.

Results

Formative interviews resulted in the development of a mobile app, named HOPE, which includes both evidence-based and participant-suggested features. The features included daily prompts for monitoring mood, stress, treatment adherence, and substance use; patient tracking of goals, reminders, and triggering or encouraging experiences; informational resources; an anonymous community board to share support with other patients; and secure messaging for communication between patients and providers. All patient participants engaged with at least one app feature during their first month of pilot study participation, and the daily self-monitoring prompts were the most used. Patients and providers reported high levels of system usability (mean 86.9, SD 10.2 and mean 83.3, SD 12.8, respectively). Qualitative analysis of open-ended usability questions highlighted the value of self-monitoring, access to support through the app, and perceived improvement in connection to care and communication for both patient and provider participants.

Conclusions

The use of the HOPE program by pilot participants, high usability scoring, and positive perceptions from 1-month interviews indicate successful program development. By engaging with end users and eliciting feedback throughout the development process, we were able to create an app and a web portal that was highly usable and acceptable to study participants. Further work is needed to understand the program’s effect on clinical outcomes, patient linkage, and engagement in care.

Safety and efficacy of a prescription digital therapeutic as an adjunct to buprenorphine for treatment of opioid use disorder

OBJECTIVES

To evaluate the safety and efficacy of a digital therapeutic in treatment-seeking individuals with opioid use disorder (OUD) in an analysis of randomized clinical trial (RCT) data (ClinicalTrials.gov identifier: NCT00929253).

METHODS

Secondary analysis of an RCT including 170 adults meeting DSM-IV criteria for OUD. Participants were randomized to 12-weeks of treatment-as-usual (TAU) or TAU plus a digital therapeutic providing 67 digital, interactive educational modules based on the Community Reinforcement Approach. TAU consisted of buprenorphine maintenance therapy, 30 min biweekly clinician interaction, and abstinence-based contingency management. Primary endpoints were treatment retention and abstinence (negative urine drug screen) during weeks 9-12 of treatment. Safety was assessed by evaluating adverse events.

RESULTS

Participants randomized to TAU plus a digital therapeutic had significantly greater odds of opioid abstinence during weeks 9-12 compared to TAU: 77.3 versus 62.1%, respectively (p=.02), OR 2.08, 95% CI 1.10-3.95. The risk of patients leaving treatment was significantly lower in the digital therapeutic group (HR 0.49, 95% CI 0.26-0.92). No significant difference was observed in the rate of adverse events between groups (p=.42).

CONCLUSIONS

A prescription digital therapeutic (PDT) in combination with buprenorphine therapy improves clinically significant patient outcomes including abstinence from illicit opioids and retention in treatment compared with treatment as usual.

Three-month outcomes from a patient-centered program to treat opioid use disorder in Iowa, USA

BACKGROUND

Opioid use disorder (OUD), a chronic disease, is a major public health problem. Despite availability of effective treatment, too few people receive it and treatment retention is low. Understanding barriers and facilitators of treatment access and retention is needed to improve outcomes for people with OUD.

OBJECTIVES

To assess 3-month outcomes pilot data from a patient-centered OUD treatment program in Iowa, USA, that utilized flexible treatment requirements and prioritized engagement over compliance.

METHODS

Forty patients (62.5% female: mean age was 35.7 years, SD 9.5) receiving medication, either buprenorphine or naltrexone, to treat OUD were enrolled in an observational study. Patients could select or decline case management, counseling, and peer recovery groups. Substance use, risk and protective factors, and recovery capital were measured at intake and 3 months.

RESULTS

Most participants reported increased recovery capital. The median Assessment of Recovery Capital (ARC) score went from 37 at enrollment to 43 (p < 0.01). Illegal drug use decreased, with the median days using illegal drugs in the past month dropping from 10 to 0 (p < 0.001). Cravings improved: 29.2% reported no cravings at intake and 58.3% reported no cravings at 3 months (p < 0.001). Retention rate was 92.5% at 3 months. Retention rate for participants who were not on probation/parole was higher (96.9%) than for those on probation/parole (62.5%, p = 0.021).

CONCLUSION

This study shows preliminary evidence that a care model based on easy and flexible access and strategies to improve treatment retention improves recovery capital, reduces illegal drug use and cravings, and retains people in treatment.

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

OBJECTIVE

Utilization of medications for opioid use disorder (MOUD) has not been widely adopted by primary care providers. This study sought to identify interprofessional barriers and facilitators for use of MOUD (specifically naltrexone and buprenorphine) among current and future primary care providers in a southeastern academic center in South Carolina.

METHOD

Faculty, residents, and students within family medicine, internal medicine, and a physician assistant program participated in focus group interviews, and completed a brief survey. Survey data were analyzed quantitatively, and focus group transcripts were analyzed using a deductive qualitative content analysis, based upon the theory of planned behavior.

RESULTS

Seven groups (N = 46) completed focus group interviews and surveys. Survey results indicated that general attitudes towards MOUD were positive and did not differ significantly among groups. Subjective norms around prescribing and controllability (i.e., beliefs about whether prescribing was up to them) differed between specialties and between level of training groups. Focus group themes highlighted attitudes about MOUD (e.g., "opens the flood gates" to patients with addiction) and perceived facilitators and barriers of using MOUD in primary care settings. Participants felt that although MOUD in primary care would improve access and reduce stigma for patients, prescribing requires improved provider education and an integrated system of care.

CONCLUSIONS

The results of this study provide an argument for tailoring education to specifically address the barriers primary care prescribers perceive. Results promote the utilization of active, hands-on learning approaches, to ultimately promote uptake of MOUD prescribing in the primary care setting in South Carolina.

Feasibility and Preliminary Efficacy of Isradipine During Outpatient Buprenorphine Stabilization and Detoxification: A Pilot Randomized, Placebo-Controlled Trial

Background:

Given the immense burden of the widespread use of opioids around the world, exploring treatments that improve drug use outcomes, and craving and withdrawal measures in individuals with opioid use disorder is crucial. This pilot study examined the feasibility and preliminary efficacy of the L-type calcium-channel blocker isradipine (ISR) to improve drug use outcomes, and craving and withdrawal measures during buprenorphine (BUP)/ISR stabilization and subsequent taper in opioid-dependent individuals.

Methods:

Participants were stabilized on BUP sublingual tablets within the first 2 days of week 1, were then randomized and inducted on either ISR or placebo, gradually increasing the dose over the next 2 weeks, followed by a 10-day BUP taper during weeks 5-6, and ISR/placebo taper during weeks 7 to 8. Assessments included thrice-weekly measures of craving and withdrawal, as well as vital signs and urine drug screens. Medication compliance was assessed by monitoring number of missed clinic visit days.

Results:

Baseline characteristics of participants (n = 25; 60% male, 96% Caucasian, 48% employed, mean age 32.8 years) did not differ significantly between treatment groups (isradipine, n = 11; placebo, n = 14). During the stabilization phase (n = 19), ISR participants had significantly lower rates of illicit opioid-positive urines (treatment × visit: t = -2.16, P = 0.03), as well as reduction in craving intensity (t = –2.50, P = 0.01), frequency (t = –3.43, P < 0.01) and duration (t = –2.51, P = 0.01). ISR was well tolerated with mild adverse effects.

Conclusions:

This study was likely underpowered due to being a pilot trial. Although preliminary results suggest ISR may improve BUP-assisted treatment outcomes, concerns about high number of exclusions (n = 11 during taper phase) based on cardiovascular measures as well as ISR-induced changes in vital signs with the immediate release formulation may limit the feasibility of this approach.

Trial Registration:

Clinicaltrials.gov identifier NCT01895270. Registered 10 July 2013, https://clinicaltrials.gov/ct2/show/NCT01895270?id=NCT01895270&draw=2&rank=1

Same-day vs. delayed buprenorphine prescribing and patient retention in an office-based buprenorphine treatment program

BACKGROUND

Buprenorphine is a safe and effective treatment for opioid use disorder (OUD), yet a small fraction of people with OUD receive it, and rates of retention in treatment are suboptimal. Dropout most commonly occurs within 30 days of treatment initiation. Therefore, research needs to investigate modifiable factors contributing to early dropout. Requiring multiple visits for evaluation prior to providing an initial buprenorphine prescription (delayed prescription) may lead to more early dropout when compared with prescribing at the first medical visit (same-day prescription). Our objective was to determine whether same-day (vs. delayed) buprenorphine prescription was associated with 30-day retention in treatment.

METHODS

We conducted a retrospective cohort study of 237 patients who initiated buprenorphine treatment at an urban federally qualified community health center (FQHC) between June 1, 2015, and December 31, 2017. We measured prescription delays by determining the time between patients' first request for buprenorphine treatment (by calling, presenting to the FQHC in-person, or requesting treatment during a visit) and when providers wrote buprenorphine prescriptions. We included only patients with prescription delays less than or equal to 30 days in the analysis. We defined same-day prescription as the patient experiencing no delays in starting treatment and receiving a prescription during the first medical visit. We examined whether patients who received same-day prescriptions had different sociodemographic and clinical characteristics than patients who received delayed prescriptions. We also evaluated whether there was an association between the initial provider who made the decision about same-day vs. delayed buprenorphine prescribing and same-day prescription. We built a multivariable logistic regression model to evaluate the independent association between same-day vs. delayed prescription receipt and odds of 30-day retention in treatment.

RESULTS

Of the 237 patients who initiated buprenorphine treatment from June 1, 2015, to December 31, 2017, 222 had delays less than or equal to 30 days and we included them in the analysis. Of the 222 patients, the mean age was 46 (SD 10.4), the majority were Hispanic (n = 160, 72%), male (n = 175, 79%), and publicly insured (n = 165, 74%). The majority of patients experienced delayed buprenorphine prescription receipt (n = 133, 60%). The median time to buprenorphine prescription was 5 days (IQR 0-11). Of those who experienced a delay (n = 133), the median delay time was 8 days (IQR 5-20). Compared to those with same-day prescription receipt, more patients with delayed prescription receipt were non-Hispanic white (11% vs. 2%, p = 0.01), had a history of alcohol use (43% vs. 21%, p < 0.01) or benzodiazepine use (22% vs. 9%, p = 0.01), and had the buprenorphine coordinator as their initial provider (57 vs. 13%, p < 0.01). Same-day prescription receipt was not significantly associated with 30-day treatment retention in the adjusted analysis (AOR 1.92, 95% CI 0.81-4.56).

CONCLUSION

Patients who received buprenorphine prescriptions on the same day as their initial evaluation differed from those who received delayed prescriptions. After adjustment for these differences, same-day prescription was not significantly associated with higher 30-day treatment retention. Providers may be delaying treatment when there is concern about alcohol and/or benzodiazepine use; however, providers could institute enhanced monitoring based on clinical concern for sedation or overdose risk without delaying buprenorphine prescription. Prospective studies of same-day vs. delayed buprenorphine receipt would elucidate the association between delays and retention more definitively.

Buprenorphine Medication for Opioid Use Disorder: A Study of Factors Associated With Postpartum Treatment Retention

BACKGROUND AND OBJECTIVES

The factors associated with medication for opioid use disorder (MOUD) treatment retention among pregnant women with opioid use disorder (OUD) are largely unknown. This study sought to characterize factors associated with postpartum treatment retention.

METHODS

A retrospective chart review from 2014 to 2017 was conducted among women with OUD in pregnancy treated with buprenorphine. Women were assigned to the treatment retention group if they attended an appointment within 10 to 14 weeks postpartum. Others were assigned to the dropout group. The groups were compared using bivariate analysis for sociodemographic variables, obstetrical and neonatal outcomes, clinical and subjective opioid withdrawal symptoms, buprenorphine dosage, urine drug toxicology (UDT) results, and other factors.

RESULTS

A total of 64 pregnancies received treatment until delivery, and 47 (73.1%) were retained in treatment by 12 weeks postpartum. The treatment dropout group had lower buprenorphine doses at delivery, a higher percentage of benzodiazepine positive UDT, and number of UDT positive for benzodiazepine in the third trimester. Breastfeeding rates were higher in the treatment retention group.

DISCUSSION AND CONCLUSIONS

Future research of variables related to postpartum treatment retention is needed to provide guidelines regarding MOUD during the perinatal period and to optimize maternal and fetal well-being.

SCIENTIFIC SIGNIFICANCE

This study supports previous recommendations that aggressive treatment of withdrawal symptoms in pregnant women with OUD is needed to maximize treatment retention. This is the first study to find that breastfeeding was associated with postpartum treatment retention; while, increased use of benzodiazepines during pregnancy was associated with postpartum treatment dropout. (Am J Addict 2021;30:43-48).

Retention of patients in opioid substitution treatment: A systematic review

Background

Retention in opioid substitution (OST) treatment is associated with substantial reductions in all cause and overdose mortality. This systematic review aims to identify both protective factors supporting retention in OST, and risk factors for treatment dropout.

Methods

A systematic search was performed using MEDLINE, Embase, PsycInfo, CINAHL and Web of Science (January 2001 to October 2019). Randomised controlled trials (RCTs) and observational cohort studies reporting on retention rates and factors associated with retention in OST were included. Factors associated with treatment retention and dropout were explored according to the Maudsley Addiction Profile. A narrative synthesis is provided.

Results

67 studies were included in this review (4 RCTs and 63 observational cohort studies; N = 294,592), all assessing factors associated with retention in OST or treatment dropout. The median retention rate across observational studies was approximately 57% at 12 months, which fell to 38.4% at three years. Studies included were heterogeneous in nature with respect to treatment setting, type of OST, risk factor assessment, ascertainment of outcome and duration of follow-up. While the presence of such methodological heterogeneity makes it difficult to synthesise results, there is limited evidence to support the influence of a number of factors on retention, including age, substance use, OST drug dose, legal issues, and attitudes to OST.

Conclusions

Younger age, substance use particularly cocaine and heroin use, lower doses of methadone, criminal activity/incarceration, and negative attitudes to MMT appear to be associated with reduced retention in OST. A consensus definition of retention is required to allow for comparability across future studies.

Development of an integrated digital health intervention to promote engagement in and adherence to medication for opioid use disorder

BACKGROUND

Buprenorphine-naloxone is an evidence-based treatment for Opioid Use Disorder. However, despite its efficacy, nearly half of participants are unsuccessful in achieving stabilization (i.e., period of time following medication induction in which medication dose is adjusted to be effective in reducing cravings/withdrawal, minimize potential side effects, and eliminate illicit substance use). This paper presents the study design and protocol for a digital health intervention designed to promote engagement in and adherence to buprenorphine treatment, offered through an outpatient addiction treatment center, through motivational enhancement and distress tolerance skills training. Personalized feedback interventions represent a promising method to effectively motivate engagement in and adherence to buprenorphine treatment. These interventions are generally brief, individually tailored, and have the potential to be delivered via mobile platforms. Distress tolerance, a transdiagnostic vulnerability factor, has been implicated in the development and maintenance of substance use. Targeting distress tolerance may improve substance use treatment outcomes by promoting the ability to persist in goal-directed activity even when experiencing physical or emotional distress.

METHODS

The study aims are to: (1) develop and refine an interactive computer- and text message-delivered personalized feedback intervention that incorporates distress tolerance skills training for persons who have elected to initiate outpatient buprenorphine treatment (iCOPE); (2) examine the feasibility, acceptability, and preliminary efficacy of iCOPE for increasing abstinence, adherence, and retention in treatment compared to a treatment as usual comparison condition; and, (3) examine potential mechanisms that may underlie the efficacy of iCOPE in improving outcomes, including motivation, distress tolerance, self-regulation, and negative affect.

DISCUSSION

Results of this study will be used to determine whether to proceed with further testing through a large-scale trial. This work has the potential to improve treatment outcomes by reducing illicit opioid use, increasing adherence/retention, and preventing future overdose and other complications of illicit opioid use. Trial Registration NCT03842384.

Effects of Interim Buprenorphine Treatment for opioid use disorder among emerging adults

OBJECTIVE

Although opioid maintenance is a first-line approach for treating opioid use disorder (OUD), suboptimal treatment outcomes have been reported among emerging adults (EAs; 18-25 years of age). In this secondary analysis, we compared treatment outcomes between EAs and older adults (OAs; ≥ 26 years of age) receiving low-barrier, technology-assisted Interim Buprenorphine Treatment (IBT) during waitlist delays to comprehensive opioid maintenance treatment.

METHOD

Participants were 35 individuals with OUD who received IBT consisting of 12-weeks of buprenorphine maintenance with bi-monthly clinic visits and technology-assisted monitoring. At monthly follow-up assessments, participants completed staff-observed urinalysis, the Beck Anxiety Inventory (BAI), Beck Depression Inventory (BDI-II), and Addiction Severity Index (ASI).

RESULTS

At study intake, EAs (n = 10) reported greater past-year intravenous drug use and greater employment, legal, and psychiatric severity (p's < .05) compared to OAs (n = 25). Despite these initial differences, there were no significant differences in the percentages of urine specimens testing negative for illicit opioids between EA and OA participants at Study Week 4 (90 % vs. 88 %, p = .99), Week 8 (80 % vs. 76 %, p = .99) or Week 12 (60 % vs. 68 %, p = .71). Relative to their older peers, EAs also demonstrated significantly greater improvements on the BAI, BDI-II, and ASI Employment and Legal subscales (p's < .05).

CONCLUSIONS

Despite presenting with greater past-year intravenous drug use and psychosocial severity relative to OAs, EAs responded favorably to the IBT intervention.

The Role of Behavioral Interventions in Buprenorphine Maintenance Treatment: A Review

(Reprinted with permission from Am J Psychiatry 2017;174:738-747).

Case report: Successful induction of buprenorphine/naloxone using a microdosing schedule and assertive outreach

BACKGROUND

The requirement for moderate withdrawal prior to initiation can be a barrier to buprenorphine/naloxone induction.

CASE PRESENTATION

We aimed to use a microdosing regimen to initiate regular dosing of buprenorphine/naloxone in a high-risk patient with a history of failed initiations due, in part, to withdrawal symptoms. Using an assertive outreach model and a buprenorphine/naloxone microdosing schedule, we initiated treatment of an individual's opioid use disorder. There was a successful buprenorphine/naloxone microdosing induction as the team reached a therapeutic dose of buprenorphine/naloxone. Including the induction period, the medication was used consistently for 4 weeks.

CONCLUSIONS

A microdosing schedule can be used to induce a patient onto buprenorphine/naloxone with no apparent withdrawal; gradually reducing illicit substance use. This case report builds on previous literature, highlighting ways to minimize barriers to induction of buprenorphine/naloxone, using a microdosing schedule and assertive outreach. Given the safety profile of buprenorphine and its potential to be a lifesaving intervention, a larger study of microdosing is indicated.

Initiating buprenorphine treatment for opioid use disorder during short-term in-patient 'detoxification': a randomized clinical trial

BACKGROUND AND AIMS

The effectiveness of linking people from short-term in-patient managed withdrawal programs ('detoxification') to long-term, primary care-based buprenorphine is unknown. We tested whether buprenorphine initiation during an opioid withdrawal program and linkage to office-based buprenorphine (LINK) after discharge would increase engagement with office-based buprenorphine and decrease illicit opioid use during the ensuing 6 months compared with standard withdrawal management (WM).

DESIGN

Single-site randomized controlled trial.

SETTING

Short-term in-patient detoxification program in Massachusetts, USA.

PARTICIPANTS

People with opioid use disorder (n = 115) who averaged 32.4 years of age, 68.2% male, 79.1% white, using illicit opioids on 27.3 of the last 30 days, were randomly assigned to WM (n = 59) versus LINK (n = 56).

INTERVENTION AND COMPARATOR

Intervention was buprenorphine induction, in-patient dose stabilization and post-discharge transition to maintenance buprenorphine at an affiliated primary care clinic (LINK). Comparator was 5-day buprenorphine managed withdrawal protocol (WM).

MEASUREMENTS

Mean 30-day rate of use of illicit opioids (primary aim) and prescribed buprenorphine (secondary aim) at 1, 3 and 6 months.

FINDINGS

Compared with WM, participants in the LINK condition had lower illicit opioid use rates at days 12 [b = -6.81, 95% confidence interval (CI) = -9.69; -3.92, P < 0.001], 35 (b = -8.55, 95% CI - 11.63; -5.47, P < 0.001), 95 (b = -7.34, 95% CI = -10.59; -4.11, P < 0.001) and 185 (b = -3.52, 95% CI = -7.07; 0.27, P = 0.052). The LINK arm had higher prescription buprenorphine use rates (P < 0.001) at all assessments.

CONCLUSIONS

Among people with opioid use disorder, initiation of, and linkage to, office-based buprenorphine treatment post-discharge reduced illicit opioid use and increased days of buprenorphine treatment for up to 6 months post-discharge compared with an in-patient detoxification protocol.

Building a Group-Based Opioid Treatment (GBOT) blueprint: a qualitative study delineating GBOT implementation

BACKGROUND

Group-Based Opioid Treatment (GBOT) has recently emerged as a mechanism for treating patients with opioid use disorder (OUD) in the outpatient setting. However, the more practical "how to" components of successfully delivering GBOT has received little attention in the medical literature, potentially limiting its widespread implementation and utilization. Building on a previous case series, this paper delineates the key components to implementing GBOT by asking: (a) What are the core components to GBOT implementation, and how are they defined? (b) What are the malleable components to GBOT implementation, and what conceptual framework should providers use in determining how to apply these components for effective delivery in their unique clinical environment?

METHODS

To create a blueprint delineating GBOT implementation, we integrated findings from a previously conducted and separately published systematic review of existing GBOT studies, conducted additional literature review, reviewed best practice recommendations and policies related to GBOT and organizational frameworks for implementing health systems change. We triangulated this data with a qualitative thematic analysis from 5 individual interviews and 2 focus groups representing leaders from 5 different GBOT programs across our institution to identify the key components to GBOT implementation, distinguish "core" and "malleable" components, and provide a conceptual framework for considering various options for implementing the malleable components.

RESULTS

We identified 6 core components to GBOT implementation that optimize clinical outcomes, comply with mandatory policies and regulations, ensure patient and staff safety, and promote sustainability in delivery. These included consistent group expectations, team-based approach to care, safe and confidential space, billing compliance, regular monitoring, and regular patient participation. We identified 14 malleable components and developed a novel conceptual framework that providers can apply when deciding how to employ each malleable component that considers empirical, theoretical and practical dimensions.

CONCLUSION

While further research on the effectiveness of GBOT and its individual implementation components is needed, the blueprint outlined here provides an initial framework to help office-based opioid treatment sites implement a successful GBOT approach and hence potentially serve as future study sites to establish efficacy of the model. This blueprint can also be used to continuously monitor how components of GBOT influence treatment outcomes, providing an empirical framework for the ongoing process of refining implementation strategies.

Outcomes of a novel office-based opioid treatment program in an internal medicine resident continuity practice

BACKGROUND

The integration of opioid use disorder (OUD) care and competencies in graduate medical education training is needed. Previous research shows improvements in knowledge, attitudes, and practices after exposure to OUD care. Few studies report outcomes for patients with OUD in resident physician continuity practices.

METHODS

A novel internal office-based opioid treatment (OBOT) program was initiated in a resident continuity clinic. Surveys of resident and staff knowledge and attitudes of OBOT were administered at baseline and 4 months. A retrospective chart review of the 15-month OBOT clinic obtained patient characteristics and outcomes.

RESULTS

Twelve patients with OUD were seen in the OBOT clinic. Seven patients (58%) were retained in care at the end of the study period for a range of 9-15 months. Eight patients demonstrated a good clinical response. Surveys of residents and staff at 4 months were unchanged from baseline showing persistent lack of comfort in caring for patients with OUD.

CONCLUSIONS

OBOT can be successfully integrated into resident continuity practices with positive patient outcomes. Improvement in resident and staff attitudes toward OBOT were not observed and likely require direct and frequent exposure to OUD care to increase acceptance.

Association between methamphetamine use and retention among patients with opioid use disorders treated with buprenorphine

BACKGROUND

Methamphetamine use is increasing in parts of the U.S., yet its impact on treatment for opioid use disorder is relatively unknown.

METHODS

The study utilized data on adult patients receiving buprenorphine from Washington State Medication Assisted Treatment-Prescription Drug and Opioid Addiction program clinics between November 1, 2015 and April 31, 2018. Past 30-day substance use data were collected at baseline and 6-months, as well as date of program discharge. Cox proportional hazards regression was used to estimate the relative hazards for treatment discharge comparing methamphetamine users at baseline with non-users, adjusting for site, time period, age, gender, race, ethnicity, and education. For a subset of patients with data, we describe the proportion of individuals reporting methamphetamine use at baseline versus 6-months.

RESULTS

The sample included 799 patients, of which 237 (30%) reported using methamphetamine in the past 30 days; of those, 156 (66%) reported 1-10 days of use, 46 (19%) reported 11-20 days of use, and 35 (15%) reported 21-30 days of use. Baseline methamphetamine use was associated with more than twice the relative hazards for discharge in adjusted models (aHR = 2.39; 95% CI: 1.94-2.93). In the sub-sample with data (n = 516), there was an absolute reduction of 15% in methamphetamine use: 135 (26%) reported use at baseline versus 57 (11%) at follow-up.

CONCLUSIONS

In summary, this study found that patients who concurrently used methamphetamine were less likely to be retained in buprenorphine treatment compared to non-users. For persons who were retained, however, methamphetamine use decreased over time.

Responding to the opioid and overdose crisis with innovative services: The recovery community center office-based opioid treatment (RCC-OBOT) model

Opioid use disorder (OUD) and opioid-related overdose mortality are major public health concerns in the United States. Recently, several community-based and professional innovations - including hybrid recovery community organizations, peer-based emergency department warm handoff programs, emergency department buprenorphine induction, and low-threshold OUD treatment programs - have emerged or expanded in an effort to address significant obstacles to providing patients the care needed for OUD and to reduce the risk of overdose. Additional innovations are needed to address the crisis. Building upon the foundational frameworks of each of these recent innovations, a new model of OUD pharmacotherapy is proposed and discussed: the Recovery Community Center Office-Based Opioid Treatment model. Additionally, two potential implementation scenarios, the overdose and non-overdose event protocols, are detailed for communities, peers, and practitioners interested in implementing the model. Potential barriers to implementation of the model include service reimbursement, licensing regulations, and organizational concerns. Future research should seek to validate the model and to identify actual implementation and sustainability barriers and best practices.

Case Series: Limited Opioid Withdrawal With Use of Transdermal Buprenorphine to Bridge to Sublingual Buprenorphine in Hospitalized Patients

BACKGROUND

Prerequisite opioid withdrawal symptoms prior to buprenorphine induction are unacceptable to many patients. We assessed whether transdermal buprenorphine minimized withdrawal while bridging to sublingual therapy among hospital inpatients.

METHODS

Retrospective chart review of (n = 23) inpatients with opioid use disorder or opioid dependence due to chronic pain.

RESULTS

Of 23 inpatients, 65% transitioned without symptoms, while 35% experienced mild withdrawal. Ninety-six percent completed planned hospitalizations, with 83% engaged in treatment 4 weeks post-discharge.

DISCUSSION AND CONCLUSIONS

Bridging to sublingual therapy with transdermal buprenorphine patches was feasible without withdrawal symptoms.

SCIENTIFIC SIGNIFICANCE

This strategy may facilitate buprenorphine therapy in hospital inpatients. (Am J Addict 2019;00:1-4).

Measurement-based care using DSM-5 for opioid use disorder: can we make opioid medication treatment more effective?

CONTEXT AND PURPOSE

Measurement-based care (MBC) is an evidence-based health-care practice in which indicators of disease are tracked to inform clinical actions, provide feedback to patients and improve outcomes. The current opioid crisis in multiple countries provides a pressing rationale for adopting a basic MBC approach for opioid use disorder (OUD) using DSM-5 to increase treatment retention and effectiveness.

PROPOSAL

To stimulate debate, we propose a basic MBC approach using the 11 symptoms of OUD (DSM-5) to inform the delivery of medications for opioid use disorder (MOUD; including methadone, buprenorphine and naltrexone) and their evaluation in office-based primary care and specialist clinics. Key features of a basic MBC approach for OUD using DSM-5 are described, with an illustration of how clinical actions are guided and outcomes communicated. For core treatment tasks, we propose that craving and drug use response to MOUD should be assessed after 2 weeks, and OUD remission status should be evaluated at 3, 6 and 12 months (and exit from MOUD treatment) and beyond. Each of the 11 DSM-5 symptoms of OUD should be discussed with the patient to develop a case formulation and guide selection of adjunctive psychological interventions, supplemented with information on substance use, and optionally extended with information from other clinical instruments. A patient-reported outcome measure should be recorded and discussed at each remission assessment.

CONCLUSIONS

MBC can be used to tailor and adapt MOUD treatment to increase engagement, retention and effectiveness. MBC practice principles can help promote patient-centred care in OUD, personalized addiction therapeutics and facilitate communication of outcomes.

Brief Report: Low-Barrier Buprenorphine Initiation Predicts Treatment Retention Among Latinx and Non-Latinx Primary Care Patients

BACKGROUND AND OBJECTIVES

Patients are at risk of dropout while waiting for buprenorphine treatment. Study goals are to compare 3-month retention in two different methods to buprenorphine initiation among persons with opioid use disorder.

METHODS

We compared 3-month treatment retention rates of low-barrier buprenorphine initiation (i.e., rapid induction) (n =58) or a traditional method of buprenorphine initiation ( n = 45) for persons with opioid use disorder seen at an urban community health center.

RESULTS

Logistic regression revealed that low-barrier initiation had 11.11 greater odds of retention compared with traditional methods (p <0.001). Latinx patients benefited more than non-Latinx patients (OR = 14.79, p =.039).

DISCUSSION AND CONCLUSIONS

All patients were more likely to be retained using low-barrier initiation. A significantly larger effect on retention among Latinx patients was observed.

SCIENTIFIC SIGNIFICANCE

Rapid buprenorphine initiation increases treatment retention which improves treatment outcomes for persons with opioid use disorder. Study findings support a less restrictive services model that is even more effective for Latinx patients. (Am J Addict 2019;28:409-412).

Correlates of Opioid Abstinence in a 42-Month Posttreatment Naturalistic Follow-Up Study of Prescription Opioid Dependence

OBJECTIVE

The natural course of prescription opioid use disorder has not been examined in longitudinal studies. The current study examined correlates of opioid abstinence over time after completion of a treatment trial for prescription opioid dependence.

METHODS

The multisite Prescription Opioid Addiction Treatment Study examined different durations of buprenorphine-naloxone treatment and different intensities of counseling to treat prescription opioid dependence, as assessed by DSM-IV; following the clinical trial, a longitudinal study was conducted from March 2009-January 2013. At 18, 30, and 42 months after treatment entry, telephone interviews were conducted (N = 375). In this exploratory, naturalistic study, logistic regression analyses examined the association between treatment modality (including formal treatment and mutual help) and opioid abstinence rates at the follow-up assessments.

RESULTS

At the 3 follow-up assessments, approximately half of the participants reported engaging in current substance use disorder treatment (47%-50%). The most common treatments were buprenorphine maintenance (27%-35%) and mutual-help group attendance (27%-30%), followed by outpatient counseling (18%-23%) and methadone maintenance (4%). In adjusted analyses, current opioid agonist treatment showed the strongest association with current opioid abstinence (odds ratios [ORs] = 5.4, 4.6, and 2.8 at the 3 assessments), followed by current mutual-help attendance (ORs = 2.2, 2.7, and 1.9); current outpatient counseling was not significantly associated with abstinence in the adjusted models.

CONCLUSIONS

While opioid agonist treatment was most strongly associated with opioid abstinence among patients with prescription opioid dependence over time, mutual-help group attendance was independently associated with opioid abstinence. Clinicians should consider recommending both of these interventions to patients with opioid use disorder.

TRIAL REGISTRATION

ClinicalTrials.gov identifier: NCT00316277​.

Provider and patient perspectives on barriers to buprenorphine adherence and the acceptability of video directly observed therapy to enhance adherence

Background

Buprenorphine effectively reduces opioid craving and illicit opioid use. However, some patients may not take their medication as prescribed and thus experience suboptimal outcomes. The study aim was to qualitatively explore buprenorphine adherence and the acceptability of utilizing video directly observed therapy (VDOT) among patients and their providers in an office-based program.

Methods

Clinical providers (physicians and staff; n = 9) as well as patients (n = 11) were recruited from an office-based opioid treatment program at an urban academic medical center in the northwestern United States. Using a semi-structured guide, interviewers conducted individual interviews and focus group discussions. Interviews were digitally recorded and transcribed verbatim. Transcripts were independently coded to identify key themes related to non-adherence and then jointly reviewed in an iterative fashion to develop a set of content codes.

Results

Among providers and patients, perceived reasons for buprenorphine non-adherence generally fell into several thematic categories: social and structural factors that prevented patients from consistently accessing medications or taking them reliably (e.g., homelessness, transportation difficulties, chaotic lifestyles, and mental illness); refraining from taking medication in order to use illicit drugs or divert; and forgetting to take medication, especially in the setting of taking split-doses. Some participants perceived non-adherence to be less of a problem for buprenorphine than for other medications. VDOT was viewed as potentially enhancing patient accountability, leading to more trust from providers who are concerned about diversion. On the other hand, some participants expressed concern that VDOT would place undue burden on patients, which could have the opposite effect of eroding patient-provider trust. Others questioned the clinical indication.

Conclusions

Findings suggest potential arenas for enhancing buprenorphine adherence, although structural barriers will likely be most challenging to ameliorate. Providers as well as patients indicated mixed attitudes toward VDOT, suggesting it would need to be thoughtfully implemented.

Two Different Buprenorphine Treatment Settings With Similar Retention Rates: Implications for Expanding Access to Treatment for Opioid Use Disorder

INTRODUCTION: There is considerable need for effective and accessible treatment for opioid use disorder. AIMS: Our study explored differences in buprenorphine treatment retention and duration, with a focus on selected sociodemographic factors and treatment indicators, in two different settings: an office-based buprenorphine induction and stabilization clinic (OBIC) and a community-based primary care clinic (CPC). METHOD: This nonexperimental retrospective chart review compared demographic information and buprenorphine treatment details, including treatment retention and duration. RESULTS: There were no statistically significant differences in buprenorphine treatment indicators between the OBIC and CPC groups, with two exceptions: the number of written buprenorphine prescriptions was significantly greater for the OBIC group, as was the number of filled buprenorphine prescriptions. CONCLUSIONS: Given similar treatment retention and duration in two different buprenorphine treatment settings, our findings suggest that access to buprenorphine treatment in standard integrated care settings can be supplemented by novel treatment structures such as the OBIC in order to increase access to care during the current opioid epidemic.