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Updated: Feb 28, 2026

Author Spotlight: An Efficient Methodology to Confidently Differentiate and Characterize Fentanyl Analogs
Published on: November 8, 2024
Opioid Agonist Therapy for Fentanyl-Related Opioid Use Disorder: A Systematic Review
Novel opioid agonist therapy (OAT) induction strategies show promise for treating fentanyl-related opioid use disorder (OUD), with emerging evidence suggesting positive clinical and safety outcomes. Further high-quality research is needed to compare these novel approaches with standard OUD treatments.
Area of Science:
- Addiction Medicine
- Pharmacology
- Public Health
Background:
- Established treatment guidelines exist for opioid use disorder (OUD).
- Specific guidance for individuals using fentanyl remains limited.
- Opioid agonist therapy (OAT) is a key treatment modality for OUD.
Purpose of the Study:
- To systematically review the effectiveness and safety of OAT for fentanyl-related OUD.
- To examine outcomes associated with buprenorphine, methadone, and slow-release oral morphine in this population.
- To identify emerging OAT strategies for fentanyl use.
Main Methods:
- Systematic literature search following PRISMA guidelines across multiple databases (EMBASE, Medline, PsycINFO, CENTRAL, Scopus) up to April 2025.
- Inclusion of studies reporting OAT for fentanyl-related OUD.
- Narrative synthesis of results, assessing risk of bias using Cochrane tools.
Main Results:
- 180 studies were included, with sample sizes varying widely.
- Novel strategies like "microdosing" and "macrodosing" buprenorphine (Bernese method) and rapid high-dose methadone protocols were reported.
- These novel strategies, deviating from standard guidelines, showed treatment success.
Conclusions:
- Emerging evidence suggests novel OAT induction strategies for fentanyl-related OUD are feasible.
- These strategies show a consistent trend towards positive clinical and safety outcomes.
- High-quality research is required to compare novel versus conventional OAT strategies for fentanyl users.
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