Improving access to care via psychiatric clinical pharmacist practitioner collaborative management of buprenorphine for opioid use disorder

Background: As the death toll continues to rise in the opioid overdose epidemic, increasing access to medications for opioid use disorder (OUD), such as buprenorphine, is vital. Psychiatric clinical pharmacist practitioners (CPPs) can help bridge the gap in care but are limited in their ability to prescribe buprenorphine given federal restrictions. Objective: This study aimed to describe a pharmacist-psychiatrist collaborative practice designed to increase access to buprenorphine for OUD in rural communities by maximizing the CPP role. Practice description: A CPP operating under a scope of practice with prescriptive authority to manage substance use disorders (SUDs) and comorbid mental health conditions was hired in June of 2020 at a rural Veterans Affairs (VA) hospital in Tomah, Wisconsin. Practice innovation: A collaborative agreement with X-waivered psychiatrists was established to manage buprenorphine for patients with OUD. Evaluation methods: A retrospective chart review was conducted on all patients with an OUD diagnosis from July 1, 2020, to October 31, 2021, to assess the use of medications for OUD, comorbid psychiatric, and SUD diagnoses; active naloxone prescription; and CPP involvement in care. For patients prescribed buprenorphine, their average wait time to initiation appointment was calculated in days and compared before and after CPP implementation. Results: As of October 31, 2021, there were 60 patients with OUD cared for by the Tomah VA, of whom 28 received buprenorphine comanaged with the CPP. On average, those requesting urgent access appointment for buprenorphine assessment from the CPP were seen for same-day induction appointments compared with historically an average of a 6.1 day wait for outpatient appointments and 5.8 days for scheduled inpatient inductions. Conclusion: Collaborative approaches to buprenorphine management with a CPP improve access to care. Although collaboration decreases time burden for X-waivered psychiatrists, care could be more efficient and timely if a CPP could independently induct, stabilize, and manage patients on buprenorphine. Published by Elsevier Inc. on behalf of the American Pharmacists Association.