Trial reportThe international journal of neuropsychopharmacology2021
A Delta-Opioid Receptor Gene Polymorphism Moderates the Therapeutic Response to Extended-Release Buprenorphine in Opioid Use Disorder.
Trial report in The international journal of neuropsychopharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 3 of them syntheses that pooled it.
What it found
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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
8 citing papers in PubMed, 3 syntheses or guidelines pooled it, 14 citations in OpenAlex.
- Multi-ancestry genome-wide association meta-analysis of buprenorphine treatment response.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025Pooled it
- Opioid agonist treatment for people who are dependent on pharmaceutical opioids.The Cochrane database of systematic reviews · 2022Pooled it
- Analysis of genetic and clinical factors associated with buprenorphine response.Drug and alcohol dependence · 2021Pooled it
- Buprenorphine Pharmacodynamics: A Bridge to Understanding Buprenorphine Clinical Benefits.Drugs · 2025Review
- Buprenorphine for Chronic Pain Management: a Narrative Review.Current pain and headache reports · 2023Review
- Leveraging drug perturbation to reveal genetic regulators of hepatic gene expression in African Americans.American journal of human genetics · 2023Article
- Buprenorphine exposure levels to optimize treatment outcomes in opioid use disorder.Frontiers in pharmacology · 2022Article
- Differential expression and transcription factor binding associated with genotype at a pharmacogenetic variant inThe American journal of drug and alcohol abuse · 2021Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundBuprenorphine treatment is not equally effective in all patients with opioid use disorder (OUD). Two retrospective studies showed that, among African Americans (AAs), rs678849, a polymorphism in the delta-opioid receptor gene, moderated the therapeutic effect of sublingual buprenorphine.
methodsWe examined rs678849 as a moderator of the response to an extended-release subcutaneous buprenorphine formulation (BUP-XR) in a 24-week OUD treatment study of 127 AAs and 327 European Americans (EAs). Participants were randomly assigned to receive: (1) BUP-XR as 2 monthly injections of 300 mg followed by either 300 mg monthly or 100 mg monthly for 4 months, or (2) monthly volume-matched placebo injections. Generalized estimating equations logistic regression analyses tested, per population group, the main and interaction effects of treatment (BUP-XR vs placebo) and genotype group (rs678849*CC vs CT/TT) on weekly urine drug screens (UDS).
resultsAmong AAs, the placebo group had higher rates of opioid-positive UDS than the BUP-XR group (log odds ratio = 1.67, 95% CI = 0.36, 2.98), but no genotype by treatment effect (P = .80). Among EAs, the placebo group also showed higher rates of opioid-positive UDS than the BUP-XR group (log odds ratio = 1.97, 95% CI = 1.14, 2.79) but a significant genotype by treatment interaction (χ 2(1) = 4.33, P = .04).
conclusionWe found a moderating effect of rs678849 on the response to buprenorphine treatment of OUD in EAs, but not AAs. These findings require replication in well-powered, prospective studies of both AA and EA OUD patients treated with BUP-XR and stratified on rs678849 genotype.
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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.