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Updated: May 6, 2026

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Published on: November 7, 2025
Recent development of CB2 selective and peripheral CB1/CB2 cannabinoid receptor ligands
1School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, Kuopio, P.O. Box 1627, FI-70211 Kuopio, Finland. tapio.nevalainen@uef.fi.
Selective CB2 receptor ligands offer therapeutic benefits for pain and cancer, minimizing central nervous system side-effects. Recent advancements focus on developing novel CB2 agonists for potential clinical applications.
Area of Science:
- Pharmacology
- Medicinal Chemistry
Background:
- Cannabinoids show therapeutic potential in pain relief, cancer therapy, and antiemesis.
- Unwanted central nervous system (CNS) side-effects limit cannabinoid therapeutic benefits.
- Selective CB2 receptor ligands or peripherally restricted ligands can separate therapeutic effects from CNS side-effects.
Purpose of the Study:
- To review recent literature on selective CB2 receptor ligands.
- To emphasize CB2 agonists developed from 2009 onwards.
- To highlight potential clinical applications of CB2 ligands.
Main Methods:
- Literature review of scientific articles published from 2009 onwards.
- Focus on studies detailing the development and characterization of selective CB2 receptor ligands.
- Analysis of structure-activity relationships and therapeutic potential.
Main Results:
- A diverse range of selective CB2 ligands have been developed.
- Optimized ligands show promise as drug candidates.
- Potential applications include pain relief, anticancer, and antipruritic agents.
Conclusions:
- Selective CB2 receptor ligands represent a promising therapeutic strategy.
- Further development may lead to novel treatments with reduced CNS side-effects.
- Recent advancements offer hope for clinical applications in various conditions.
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