Targeting β-arrestin to Arrest Opioid Side Effects? A Discussion of Receptor-Biased Opioids
Opioids are one of the cornerstones of acute pain management; however, these medications are not without risk. In light of the opioid epidemic, there has been a focus on the pitfalls and safety concerns of opioid analgesics, such as respiratory depression, tolerance, and gastrointestinal side effects. With these concerns in mind, there has been a push to develop safer opioids. One proposed method uses receptor-biased opioid agonists that preferentially activate the pain-blocking cascade of opioid receptors without activating the β-arrestin pathway. This is important because the β-arrestin pathway is thought to be responsible for the side effect profile of traditional opioids; thus, using receptor-biased agonists could decrease the incidence of respiratory depression, tolerance, and constipation. The current presentation will review the pharmacology of receptor-biased agonists to elucidate whether the current evidence supports these claims and whether there is a role for receptor-biased agonists in pain management.
Learning Objectives
- Describe the proposed mechanism of action for G protein-coupled receptor-biased opioids
- Discuss the role of the β-arrestin signaling pathway in the safety, tolerability, and efficacy of opioids
- Evaluate existing and forthcoming literature using knowledge of the pharmacologic mechanism of G protein-coupled receptor-biased opioids and β-arrestin
Cindy Nguyen, PharmD, MPH, MS – Palliative Care Clinical Pharmacist, MedStar Health Georgetown University Hospital
Available Credit
- 1.00 AANP
- 1.00 ACCME (All Other)
- 1.00 ACCME (MD/DO Only)
- 1.00 ACPE Pharmacy
- 1.00 ANCC
- 1.00 APA