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Opioid substitution therapy: Lowering the treatment thresholds
Georgios Kourounis1, Brian David Wensley Richards1, Evdokia Kyprianou2
1St George's University of London, Medical School at the University of Nicosia, Agiou Nikolaou Street 93, Engomi, 2408 Nicosia, Cyprus; Department of Addiction Psychiatry, Athalassa Psychiatric Hospital, Cyprus Mental Health Services, Leoforos Lemesou 199/2, 1452 Nicosia, Cyprus.
Opioid substitution therapy (OST) is effective for opioid use disorders. Low threshold OST designs, which reduce patient barriers and offer personalized care, show better treatment outcomes than high threshold approaches.
Area of Science:
- Addiction Medicine
- Pharmacology
- Public Health
Background:
- Opioid substitution therapy (OST) is the standard for treating opioid use disorders.
- Debate exists regarding optimal OST intervention characteristics, specifically treatment thresholds.
- Understanding treatment thresholds is crucial for improving OST effectiveness.
Purpose of the Study:
- Define and summarize "treatment thresholds" in OST.
- Outline treatment thresholds and their relationship to low and high threshold characteristics.
- Analyze how threshold characteristics impact OST outcomes.
Main Methods:
- Systematic literature search of major databases (Medline, PubMed, PsycInfo, EMBASE, CINAHL, Cochrane Library).
- Included original research, reviews, and meta-analyses up to June 2015.
- Keywords: "opioid substitution", "OST", "low threshold", "high threshold".
Main Results:
- Treatment thresholds are barriers patients encounter before and during OST.
- Barriers classified as accessibility or design-related.
- Low threshold OST designs demonstrate superior treatment outcomes compared to high threshold designs.
Conclusions:
- Low threshold OST enhances effectiveness through increased accessibility and reduced waiting times.
- Personalized treatment options (medication, titration) and flexible duration improve outcomes.
- Maintenance and harm reduction focus, retaining low adherence patients, are key characteristics.
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