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NCT04199728: GLP-1 Receptor Agonist for Opioid Use Disorder
Type: Clinical trial
Phase: 2
Status: Active (as of April 2026)
Intervention: GLP-1 receptor agonist (specific drug not specified in source)
Target: Opioid Use Disorder (OUD)
Trial Context
Part of broader GLP-1 substance use disorder research program. As of April 2026, 4 OUD trials active out of 33 total SUD trials.
Evidence Base
Liraglutide OUD data:
- ~40% reduction in opioid craving in small randomized double-blind placebo-controlled residential study
- Phase 2 evidence only
Semaglutide OUD data:
- Significantly reduced opioid overdose risk in 1-year follow-up for patients with comorbid T2D + OUD (real-world observational data)
- Cannot distinguish causal mechanism from selection effects
Mechanism: GLP-1 receptors in ventral tegmental area (VTA) and nucleus accumbens reduce dopamine surge from opioid exposure, attenuating reward salience.
Critical limitation: All human evidence from patients with comorbid metabolic disease. Efficacy for OUD without T2D/obesity comorbidity unknown and largely unstudied.
Timeline
- 2026-04-28 — NBC News synthesis reports Phase 2 evidence for GLP-1 in OUD, no Phase 3 trials completed
Sources
- NBC News/Pharmacy Times synthesis, April 2026
- ClinicalTrials.gov NCT04199728