Extended-release buprenorphine outcomes among treatment resistant veterans

ABSTRACT

Background: Buprenorphine Extended-Release (BUP-XR) is an FDA approved, monthly subcutaneous injection for opioid use disorder. This formulation provides an alternative for patients who have difficulty adhering to daily sublingual buprenorphine; however, its cost may be prohibitive compared to other medication alternatives.

Objectives: The objective of this project was to evaluate the effectiveness of BUP-XR and provide a rationale for its utilization in health care facilitates.

Methods: Across two VA outpatient clinics, twenty-six (22 male, 4 female) clinically complex patients received at least one BUP-XR injection between December 1, 2018 and April 1, 2020. The sample was high risk for hospital admission and mortality. Data was collected retrospectively from the medical records. Outcomes examined included: medication adherence, urine drug and alcohol screenings, emergency department visits, hospital admissions, and housing status. Within-subject comparisons were made between the six month period prior to and following the first injection.

Results: Treatment retention was robust, as 81% of the sample received six or more monthly BUP-XR injections. Most patients (77%) maintained 300 mg dosage and a majority (70%) missed or were late for at least one injection. BUP-XR was associated with reduction in: emergency department visits, days of hospitalization, non-prescribed opioid use, and homelessness. Mortality rate was 23%.

Conclusions: BUP-XR with a flexible dosing schedule and a nonstandard default dose of 300 mgs resulted in robust retention, provided effective treatment of OUD, and reduced health care utilization for these complex patients with high mortality risk. However, due to the lack of statistical significance generalization of these findings is limited.

KEYWORDS:

• BUP-XR
• opioid use disorder
• effectiveness
• veterans

Acknowledgements

• Special thanks to Justin Stamschror, MD and Nancy Darst, RN for their excellent care of these veterans; and to Yoanna McDowell, PhD, Cassandra Song, PharmD, and Tracy Simpson, PhD for their support of this project.

• We gratefully appreciate and acknowledge the sacrifices of those who have served in our military.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Correction Statement

This article has been corrected with minor changes. These changes do not impact the academic content of the article.

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Funding

The author(s) reported there is no funding associated with the work featured in this article.