ReviewCurrent opinion in pharmacology2025
Delta opioid receptors: Overlooked outlier or the next big thing.
Review in Current opinion in pharmacology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
5 citing papers in PubMed.
- Natural Products as GPCR-Targeting Antidepressant Candidates: Advances and Opportunities.Pharmaceuticals (Basel, Switzerland) · 2026Review
- PN6047 Demonstrates Broad Preclinical Efficacy in Headache Models as a Novel Delta-Opioid Receptor Agonist.bioRxiv : the preprint server for biology · 2026Article
- Structure-Guided Repurposing of Approved Drugs Identifies Aprepitant and Mavorixafor as Putative δ-Opioid Receptor Agonist Candidates.International journal of molecular sciences · 2026Article
- Mechanistic insights into the therapeutic properties of delta opioid receptor.Science advances · 2026Article
- Narcotics through time: exploring historical origins, synthetic advances, and clinical progress.Future medicinal chemistry · 2025Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
The delta opioid receptor (DOR) is an often-overlooked member of the opioid receptor family, lacking the euphoric and addictive effects of mu receptors and the dysphoric properties of kappa. Instead, the DOR functions to restore balance, showing minimal impact in acute pain but alleviating allodynia and hyperalgesia associated with chronic pain and producing anxiolytic and antidepressant-like behaviors. Though past clinical trials for osteoarthritis and depression were unsuccessful, emerging evidence supports DOR's therapeutic potential in migraine, substance use disorder, irritable bowel syndrome, and metabolic disorder. Advances in pharmacology, including structure-guided design and intracellular targeting, offer promising new directions for DOR-based drug development.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.