Evidence map›Paper›PMID 26856250›Full record

Trial reportThe pharmacogenomics journal2017

The GRM7 gene, early response to risperidone, and schizophrenia: a genome-wide association study and a confirmatory pharmacogenetic analysis.

E Sacchetti, C Magri, A Minelli, P Valsecchi, M Traversa, S Calza, A Vita, M Gennarelli

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in The pharmacogenomics journal, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 13% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Pharmacogenetics of Antipsychotic Treatment in Schizophrenia.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
  11. Evidence of an interaction betweenEuropean psychiatry : the journal of the Association of European Psychiatrists · 2021
    Article
  12. Article
  13. Gene expression and response prediction to amisulpride in the OPTiMiSE first episode psychoses.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2020
    Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. Genome-wide association study of paliperidone efficacy.Pharmacogenetics and genomics · 2017
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

E SacchettiDepartment of Clinical and Experimental Sciences, Neuroscience Section, University of Brescia, Brescia, Italy.
C MagriDepartment of Molecular and Translational Medicine, University of Brescia, Brescia, Italy.
A MinelliDepartment of Molecular and Translational Medicine, University of Brescia, Brescia, Italy.
P ValsecchiDepartment of Clinical and Experimental Sciences, Neuroscience Section, University of Brescia, Brescia, Italy.
M TraversaDepartment of Molecular and Translational Medicine, University of Brescia, Brescia, Italy.
S CalzaDepartment of Molecular and Translational Medicine, University of Brescia, Brescia, Italy.
A VitaDepartment of Clinical and Experimental Sciences, Neuroscience Section, University of Brescia, Brescia, Italy.
M GennarelliDepartment of Molecular and Translational Medicine, University of Brescia, Brescia, Italy.
University of Brescia · ITAzienda Socio Sanitaria Territoriale degli Spedali Civili di Brescia · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The search for biomarkers of response to antipsychotic medications is hindered by difficulties inherent in the topic or related to persistent methodological difficulties, such as high rates of anticipated discontinuation and consequent distortions in the imputation of missing data. Because early response to antipsychotics represents a sufficiently reliable index of the subsequent treatment response in patients with schizophrenia, we undertook a real-world, genome-wide association study (GWAS) with the aim of identifying genetic predictors of response to risperidone after 2 weeks in 86 patients with schizophrenia. Limited to the associations reaching significance in the GWAS, confirmatory analysis relative to risperidone response over 9 months was also designed involving 97 patients (European only) enroled in the CATIE (Clinical Antipsychotic Trials of Intervention Effectiveness) genetic substudy. The GWAS revealed a significant association (false discovery rate 0.02) of the single-nucleotide polymorphism rs2133450 inside the GRM7 gene with Emsley's positive domain derived from the positive and negative syndrome scale (PANSS). Patients with the rs2133450 CC genotype presented poorer improvement in the positive domain over 2 weeks, with odds ratios of 12.68 (95% CI, 3.51-45.76) and 6.95 (95% confidence interval (CI), 2.37-20.37) compared with patients with the AA and AC genotypes, respectively. Compared with A homozygotes, rs2133450 C homozygotes enroled in the CATIE-derived confirmatory analysis showed less improvement in Emsley's positive, excited and depression domains, positive and general PANSS subtypes, and total PANSS after 9 months of treatment with risperidone. The original GWAS and the CATIE-derived confirmatory analysis support the proposal that the rs2133450 may have translational relevance as a predictor of response to risperidone.

Indexed as

Pharmacogenomic VariantsPolymorphism, Single NucleotideSchizophrenic PsychologyAdultAntipsychotic AgentsFemaleGene FrequencyGenome-Wide Association StudyGenotypeHeterozygoteHomozygoteHumansMaleMiddle AgedOdds RatioPharmacogeneticsAntipsychotic Agentsmetabotropic glutamate receptor 7Receptors, Metabotropic GlutamateRisperidone

Identifiers

PMID26856250
OpenAlexW2264585057

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.