Evidence map›Paper›PMID 31490856›Full record

ArticleJournal of pediatric gastroenterology and nutrition2019

CYP2C19 and STAT6 Variants Influence the Outcome of Proton Pump Inhibitor Therapy in Pediatric Eosinophilic Esophagitis.

Edward B Mougey, Andre Williams, Ashlan J Kunz Coyne, Carolina Gutiérrez-Junquera, Sonia Fernández-Fernández, Maria Luz Cilleruelo, Ana Rayo, Luis Echeverría, Enriqueta Román, Carmen González Lois and 4 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of pediatric gastroenterology and nutrition, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
4.4field-weighted citation impact, top 5% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

  1. Guideline
  2. Shifting the scope: Moving toward less invasive diagnosis and monitoring of eosinophilic esophagitis.Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 2026
    Review
  3. Review
  4. Article
  5. Review
  6. Proton pump inhibitors modulate esophageal epithelial barrier function and crosstalk with eosinophils.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2026
    Article
  7. Article
  8. Optimizing proton-pump inhibitor therapy in paediatric eosinophilic esophagitis throughJournal of the Canadian Association of Gastroenterology · 2025
    Article
  9. Article
  10. Review
  11. Impact ofInternational journal of molecular sciences · 2024
    Article
  12. Review
  13. Article
  14. Genetic and Molecular Contributors in Eosinophilic Esophagitis.Current allergy and asthma reports · 2023
    Review
  15. Proton Pump Inhibitors in Allergy: Benefits and Risks.The journal of allergy and clinical immunology. In practice · 2022
    Review
  16. Long-term efficacy of proton pump inhibitors as a treatment modality for eosinophilic esophagitis.Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver · 2022
    Article
  17. Review
  18. Review
  19. Article
  20. Review
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

14 authors at 5 institutions in 2 countries.

Edward B MougeyCenter for Pharmacogenomics and Translational Research.
Andre WilliamsCentre for Health Care Delivery Science, Nemours Children's Health System.
Ashlan J Kunz CoyneCollege of Pharmacy, University of Florida, Jacksonville, FL.
Carolina Gutiérrez-JunqueraPediatric Gastroenterology Unit, Department of Pediatrics, Hospital Universitario Puerta de Hierro-Majadahonda.
Sonia Fernández-FernándezPediatric Gastroenterology Unit.
Maria Luz CillerueloPediatric Gastroenterology Unit, Department of Pediatrics, Hospital Universitario Puerta de Hierro-Majadahonda.
Ana RayoPediatric Gastroenterology Unit.
Luis EcheverríaPediatric Allergy Unit, Department of Pediatrics, Hospital Universitario Severo Ochoa, Leganés.
Enriqueta RománPediatric Gastroenterology Unit, Department of Pediatrics, Hospital Universitario Puerta de Hierro-Majadahonda.
Carmen González LoisDepartment of Pathology, Hospital Universitario Puerta de Hierro-Majadahonda.
Montserrat ChaoDepartment of Pathology, Hospital Universitario Severo Ochoa, Leganés, Madrid, Spain.
Hadeel Al-AtrashDivision of Gastroenterology, Hepatology and Nutrition, Nemours Children's Hospital.
John J LimaCenter for Pharmacogenomics and Translational Research.
James P FranciosiDivision of Gastroenterology, Hepatology and Nutrition, Nemours Children's Hospital.
Hospital Universitario Puerta de Hierro Majadahonda · ESFlorida College · USHospital Universitario Severo Ochoa · ESJacksonville University · USNemours Children's Health System · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveProton pump inhibitors (PPIs) are an effective treatment for eosinophilic esophagitis (EoE); however, only 30% to 60% of patients respond. Common genetic variants in CYP2C19 and STAT6 associate with PPI plasma concentration and magnitude of inflammatory response, respectively. Our objective was to determine if genetic variation in the genes for CYP2C19 and STAT6 influence differentiation between PPI responsive esophageal eosinophilia versus PPI nonresponsive EoE (PPI-REE, PPI-nonresponsive EoE).

methodsGenomic DNA was isolated from 92 esophageal tissue biopsies collected from participants of a prospective clinical trial of high-dose PPI therapy for esophageal eosinophilia in children.

resultsOf the 92 patients examined, 57 (62%) were PPI-REE and 35 (38%) were PPI-nonresponsive EoE. Forty-six of the 92 patients were further characterized by pH probe monitoring; there was no association between reflux index and carriage of CYP2C1917 (P = 0.35). In children who received a PPI dose between ≥1.54 and ≤2.05 mg/kg/day, binary logistic regression modeling showed that carriage of CYP2C1917 associated with PPI-nonresponsive EoE (odds ratio (OR) [95% confidence interval (CI)] = 7.71 [1.21, 49.11], P = 0.031). Carriage of STAT6 allelic variant rs1059513 predicts PPI-REE (OR [95% CI] = 6.16 [1.44, 26.4], P = 0.028), whereas carriage of STAT6 rs324011 synergizes with CYP2C1917 to predict PPI-nonresponsive EoE (rs324011 OR [95% CI] = 5.56 [1.33, 20.72], P = 0.022; CYP2C1917 OR [95% CI] = 8.19[1.42, 50.57], P = 0.023).

conclusionsCommon variants in CYP2C19 and STAT6 associate with a PPI-nonresponsive EoE outcome of PPI therapy for esophageal eosinophilia suggesting that response rates may be improved by adopting a genotype-guided approach to PPI dosing.

Indexed as

AdolescentChildChild, PreschoolCytochrome P-450 CYP2C19Eosinophilic EsophagitisEsophageal pH MonitoringFemaleHumansMaleProspective StudiesProton Pump InhibitorsSTAT6 Transcription FactorTreatment OutcomeCytochrome P-450 CYP2C19Proton Pump InhibitorsSTAT6 protein, humanSTAT6 Transcription Factor

Identifiers

PMID31490856
PMCPMC6855320
OpenAlexW2971639453

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.