ArticlePsychopharmacology2020
Kappa opioid agonists reduce oxycodone self-administration in male rhesus monkeys.
Article in Psychopharmacology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 2 of them syntheses that pooled it.
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Who cites it
32 citing papers in PubMed, 2 syntheses or guidelines pooled it, 52 citations in OpenAlex.
- The translational potential of salvinorin A: systematic review and meta-analysis of preclinical studies.Translational psychiatry · 2025Pooled it
- A review of the kappa opioid receptor system in opioid use.Neuroscience and biobehavioral reviews · 2024Pooled it
- Triazole 187 is a biased KOR agonist that suppresses itch without sedation and induces anxiolytic-like behaviors in mice.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026Article
- Kappa Opioid Receptor Availability in Borderline Personality Disorder: An In Vivo Investigation With [Biological psychiatry · 2026Article
- Effects of repeated nalfurafine and VZTK35 treatments on fentanyl/cocaine mixture self-administration in a rat drug-vs.-food choice procedure.Psychopharmacology · 2026Article
- Oxycodone self-administration and drug-primed responding in male and female squirrel monkeys: Effects of alternative reinforcer availability.The Journal of pharmacology and experimental therapeutics · 2025Article
- KOR agonists for the treatment and/or prevention of opioid use disorder and cocaine use disorder.Pharmacology, biochemistry, and behavior · 2025Review
- Deletion of β-arrestin 2 in mice affects kappa opioid receptor-mediated behaviors depending on sex, ovariectomy status, and behavioral endpoints.Neuroscience letters · 2025Article
- Discovery of 6α-Thiazolylcarboxamidonaltrexamine Derivative (NTZ) as a Potent and Central Nervous System Penetrant Opioid Receptor Modulator with Drug-like Properties for Potential Treatment of Opioid Use Disorder.ACS pharmacology & translational science · 2024Article
- Enhancing translation: A need to leverage complex preclinical models of addictive drugs to accelerate substance use treatment options.Pharmacology, biochemistry, and behavior · 2024Review
- Contingent administration of typical and biased kappa opioid agonists reduces cocaine and oxycodone choice in a drug vs. food choice procedure in male rhesus monkeys.Psychopharmacology · 2024Article
- Temporally specific gene expression and chromatin remodeling programs regulate a conservedeLife · 2023Article
- Oxycodone: A Current Perspective on Its Pharmacology, Abuse, and Pharmacotherapeutic Developments.Pharmacological reviews · 2023Review
- Quantification of observable behaviors following oral administration of oxycodone and nalfurafine in male rhesus monkeys.Drug and alcohol dependence · 2023Article
- The Kappa Opioid Receptor Agonist 16-Bromo Salvinorin A Has Anti-Cocaine Effects without Significant Effects on Locomotion, Food Reward, Learning and Memory, or Anxiety and Depressive-like Behaviors.Molecules (Basel, Switzerland) · 2023Article
- Genetic and epigenetic studies of opioid abuse disorder - the potential for future diagnostics.Expert review of molecular diagnostics · 2023Review
- Neural circuits controlling choice behavior in opioid addiction.Neuropharmacology · 2023Review
- Choice between food and cocaine reinforcers under fixed and variable schedules in female and male rhesus monkeys.Experimental and clinical psychopharmacology · 2023Article
- PET imaging of kappa opioid receptors and receptor expression quantified in neuron-derived extracellular vesicles in socially housed female and male cynomolgus macaques.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2023Article
- The G-protein biased kappa opioid agonists, triazole 1.1 and nalfurafine, produce non-uniform behavioral effects in male rhesus monkeys.Pharmacology, biochemistry, and behavior · 2022Article
Corrections and comments
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Authors and funding
6 authors at 4 institutions in 1 country.
Funding
Abstract
rationaleCombinations of mu and kappa opioid receptor (KOR) agonists have been proposed as potential analgesic formulations with reduced abuse liability. The current studies extend previous work by investigating the typical KOR agonist, salvinorin A, and the atypical KOR agonist, nalfurafine, as deterrents of oxycodone self-administration using a progressive ratio (PR) schedule of reinforcement.
methodsIn separate experiments, adult male rhesus monkeys (N = 4/experiment) were trained under a PR schedule of reinforcement to self-administer cocaine (0.1 mg/kg/injection) and saline on alternating days. Oxycodone (0.01-0.1 mg/kg/injection) alone and combined with salvinorin A (experiment 1; 0.006, 0.012 mg/kg/injection) or nalfurafine (experiment 2; 0.0001-0.00032 mg/kg/injection) were tested within the alternating cocaine and saline baseline. The mechanism of nalfurafine's effects on oxycodone self-administration was investigated via pretreatment with the KOR antagonist, nor-binaltorphimine (nor-BNI; 10 mg/kg; i.m.).
resultsAll subjects self-administered oxycodone alone above saline levels at sufficiently large doses, and combining salvinorin A or nalfurafine with oxycodone reduced the mean number of injections per session to saline levels (experiment 1) or to levels that were significantly lower than oxycodone alone (experiment 2). The ability of nalfurafine to reduce oxycodone self-administration was reversed by pretreatment with nor-BNI.
conclusionsThese results demonstrate that KOR agonists, including the clinically used KOR agonist, nalfurafine, can punish self-administration of a prescription opioid analgesic, oxycodone, in rhesus monkeys and that nalfurafine's punishing effect is KOR-dependent. Combinations of KOR agonists with prescription opioids may have reduced abuse liability.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.