Presentations for CME Review

Why buprenorphine is superior for the management of opioid use disorder and pain

Nitin K. Sekhri, MD

Opioid abuse represents a public health crisis that has significant associated morbidity and mortality. Since beginning in the early 1990’s, the opioid abuse epidemic has been difficult to control due to regulatory, economic, and psychosocial factors that have perpetuated its existence. This era of opioid abuse has been punctuated by three distinct rises in mortality, precipitated by unique public health problems that needed to be addressed. Patients affected by opioid abuse have been historically treated with either methadone or naltrexone. While these agents have clinical utility supported by robust literature, we the authors posit that buprenorphine is a superior therapy for both opioid use disorder (OUD) as well as pain. This primacy is due to the pharmacological properties of buprenorphine which render it unique among other opioid medications. One such property is buprenorphine’s ceiling effect of respiratory depression, a common side effect and complicating factor in the administration of many classical opioid medications. This profile renders buprenorphine safer, while simultaneously retaining therapeutic utility in the medical practitioner’s pharmacopeia for the treatment of opioid use disorder and pain.

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Rapid micro induction of sublingual buprenorphine from methadone in an outpatient setting: “A case series”

Gurpreet Singh Guliani, MD

This presentation is from BUPE2021 and CME credits are not available for this presentation. However, the presentation still have excellent learning value.

Buprenorphine (BPN), FDA approved for opioid use disorder (OUD), requires an induction protocol for the patient in mild to moderate withdrawal. This can be problematic in outpatient practice due to complicated medical management. An emerging technique in literature uses a novel approach, called microinduction. In this method, escalating microdoses of BPN are administered, without requiring the patient to stop the opioid agonist. Our addiction treatment center used a microdosing technique to transit patients from methadone to BPN, without requiring opioid abstinence. Our case series is novel as it was outpatient microinduction from methadone to BPN in 7 days or less.

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Interest in long-acting injectable buprenorphine among syringe services program participants

Hannah Epstein, BS;
Andres Perez-Correa, MD;
Jason Beltre, BS;
Christine Fitzsimmons, ASN;
Pia Marcus, BA;
Franklin Ramirez, BA;
L. Synn Stern, RN, MPH;
Brianna L. Norton, DO, MPH;
Aaron D. Fox, MD, MS;
Andrea Jakubowski, MD, MS

This presentation is from BUPE2021, and CME credits are not available for it. However, it still has excellent learning value.

Objective: To examine syringe services program (SSP) participants’ interest in long-acting injectable buprenorphine.
Design: SSP participants completed a 136-item questionnaire by phone. Items assessed quantitative ratings of interest in sublingual and injectable buprenorphine, preference for sublingual versus injectable buprenorphine, and reasons for preferences.
Setting: Two large urban SSPs.
Participants: SSP participants ≥18 years of age with current or lifetime opioid use disorder (OUD).
Main outcome measure(s): (1) Interest in sublingual and injectable buprenorphine, respectively, on a scale from 0 to 10 (0 = no interest and 10 = high interest); and (2) preference for sublingual buprenorphine versus injectable buprenorphine. Participants were also asked whether they agreed with statements that presented potential reasons for preferring each formulation.
Results: A total of 104 unique participants were interviewed, of which 72 (69 percent) were currently receiving or considering buprenorphine treatment. Among these 72 participants, the median level of interest in starting or continuing sublingual buprenorphine was 8 out of 10 (interquartile range [IQR]: 6-10) and in starting injectable buprenorphine was 5 out of 10 (IQR: 1-9). Thirty-six (50 percent) preferred sublingual, 27 (38 percent) preferred injectable, and 9 (13 percent) preferred neither or declined to answer. Participants who preferred injectable buprenorphine most commonly agreed that the convenience of the monthly injection was the reason for their preference.
Conclusions: Among SSP participants with OUD, we found moderate interest in injectable buprenorphine. Introducing this new form of buprenorphine treatment at SSPs could help meet the needs of individuals who are not well-served by standard OUD treatment models.

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Review of the adaptations in opioid agonist treatment during the COVID-19 pandemic:
Focus on buprenorphine-based treatment

Abhishek Ghosh, MD, DM;
Chandrima Naskar, MD;
Fazl-e Roub, MD, DM;
Debasish Basu, MD, DNB, MAMS

This presentation is from BUPE2021, and CME credits are not available for it. However, it still has excellent learning value.

Background: Availability and access to opioid agonist treatment (OAT) are limited despite its evidence of effectiveness in treating opioid use disorders (OUDs). COVID-19 pandemic has inadvertently exacerbated the problems of restricted access to OAT and, at the same time, has increased odds of harm due to opioid use.
Objectives: We examined (a) adaptations conceived or implemented in the buprenorphine (BPN)-based OAT service delivery at the national, regional, or local level during the COVID-19 pandemic and (b) the impact of such transformations on the quantitative and qualitative aspects of service delivery. We focused exclusively on BPN-based OAT.
Methods: We carried out a systematic electronic database search in PubMed and Google Scholar. We included all types of articles. Additionally, we looked up relevant websites of international and national government agencies working in the field of drug abuse.
Results: We included 21 articles from 10 countries in the review and summarized the results in a narrative format. The majority of literature was from developed countries. We observed changes in the BPN initiation, dosing, and dispensing protocols, and particular emphasis on telemedicine. There was limited literature on service provisions for the vulnerable population. The changing modes of service delivery have possibly increased the number of new patients and reduced the risk of exposure owing to limited in-person contact.
Conclusion: Newer adaptations to meet with the challenges of COVID-19 pandemic in the BPN-based OAT delivery tend to be innovative, flexible, and patient centered. Although it is too early to comment on these newer adaptations’ impact, the outcome’s directions appear to be positive.

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Atypical opioids and their effect on respiratory drive

Lynn Webster, MD;
Richard L. Rauck, MD

This presentation is from BUPE2021, and CME credits are not available for it. However, it still has excellent learning value.

Opioids are an important tool in the treatment of pain, but opioid overdose has become a serious health issue. Most opioid-related deaths are caused by respiratory depression, and the risk of respiratory depression is compounded because of the risks of abuse and diversion, which makes the need for safer opioids even more urgent. However, the atypical opioids (buprenorphine, tramadol, and tapentadol), with mechanisms of action not purely driven by μ-opioid receptor agonism, may be safer than conventional opioids, eg, morphine, oxycodone, and fentanyl. The purpose of this narrative review is to describe the clinical and experimental evidence regarding opioid-induced respiratory depression in the context of the mechanisms of action of the atypical opioids. Among the atypical opioids, tramadol has an advantage of being a Schedule IV drug, and thus having a relatively low abuse potential—but its effects, including its effect on respiratory drive, are dependent on cytochrome P450 2D6 metabolizer status. Tapentadol appears to affect respiratory drive, but this has not been well investigated. Buprenorphine is a Schedule III drug, thus having less abuse potential than the majority of opioids. Experimentally, a ceiling effect on the respiratory depression has been reported with intravenous buprenorphine. In addition, experimental hypercapnic stress in healthy volunteers demonstrated no respiratory depression following the administration of a single dose of the buccal film formulation of buprenorphine when compared with placebo. Overall, the data suggest that atypical opioids may be a safer option than conventional opioids for the treatment of pain.

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