Evidence map›Paper›PMID 28391407›Full record

ArticleEuropean journal of clinical pharmacology2017

Influence of genetic and non-genetic factors on phenytoin-induced severe cutaneous adverse drug reactions.

Kittika Yampayon, Chonlaphat Sukasem, Chanin Limwongse, Yotin Chinvarun, Therdpong Tempark, Ticha Rerkpattanapipat, Pornpimol Kijsanayotin

Abstract read
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In one paragraph

Article in European journal of clinical pharmacology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 5 pooled it
6.7field-weighted citation impact, top 3% 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

26 citing papers in PubMed, 5 syntheses or guidelines pooled it, 71 citations in OpenAlex.

  1. Guideline
  2. Frontiers in pharmacology · 2025
    Pooled it
  3. Guideline
  4. Pooled it
  5. Pooled it
  6. Article
  7. Association of decreased CYP2C9 function,Frontiers in pharmacology · 2026
    Article
  8. Risk factors and predictive score for phenytoin-induced cutaneous reactions.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
    Article
  9. Article
  10. Review
  11. Review
  12. Review
  13. Pharmacogenomics in Psychiatry Practice: The Value and the Challenges.International journal of molecular sciences · 2022
    Review
  14. Review
  15. The Immunogenetics of Cutaneous Drug Reactions.Advances in experimental medicine and biology · 2022
    Article
  16. Association ofJournal of personalized medicine · 2021
    Article
  17. Review
  18. Review
  19. Genetic Diversity ofFrontiers in pharmacology · 2020
    Article
  20. Nurse empowerment through Pharmacogenetics.Revista latino-americana de enfermagem · 2020
    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

7 authors at 4 institutions in 1 country.

Kittika YampayonDepartment of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, 254 Phyathai Rd.,Wangmai, Patumwan, Bangkok, 10330, Thailand.
Chonlaphat SukasemDivision of Pharmacogenetics and Personalized Medicine, Department of Pathology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
Chanin LimwongseDivision of Medical Genetics, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Yotin ChinvarunNeurology Unit, Department of Internal Medicine, Phramongkutklao Hospital, Bangkok, Thailand.
Therdpong TemparkDivision of Dermatology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
Ticha RerkpattanapipatDivision of Allergy Immunology and Rheumatology, Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
Pornpimol KijsanayotinDepartment of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, 254 Phyathai Rd.,Wangmai, Patumwan, Bangkok, 10330, Thailand. pornpimol.k@chula.ac.th.
Chulalongkorn University · THMahidol University · THPhramongkutklao Hospital · THRamathibodi Hospital · TH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe purpose of this study was to investigate the association of genetic factors including variants in HLA-B and CYP2C genes and non-genetic factors with phenotype-specific phenytoin (PHT)-induced severe cutaneous adverse reactions (SCARs) in Thai patients.

methodsThirty-six PHT-induced SCAR cases (15 Stevens-Johnson syndrome (SJS) and 21 drug rash with eosinophilia and systemic symptoms (DRESS)/drug hypersensitivity syndrome (DHS)) and 100 PHT-tolerant controls were studied. Variants in HLA-B, CYP2C9, and CYP2C19 genes were genotyped. Fisher's exact test and multiple logistic regression analysis were performed to test the association of genetic and non-genetic factors with specific type of SCARs.

resultsMultiple logistic regression models showed that genetic and non-genetic factors associated with PHT-induced SCARs were specified to its phenotype. HLA-B*13:01, HLA-B*56:02/04, CYP2C19*3, and omeprazole co-medication were strong risk factors of DRESS/DHS (adjusted OR = 13.29, p = 0.0001; adjusted OR = 56.23, p = 0.0007; adjusted OR = 6.75, p = 0.0414; and adjusted OR = 9.21, p = 0.0020, respectively). While CYP2C9*3 and having Chinese ancestry were significant risk factors of SJS (adjusted OR = 10.41, p = 0.0042 and adjusted OR = 5.40, p = 0.0097, respectively). Combined genetic and non-genetic risk factors optimized sensitivity and increased specificity for predicting PHT-induced SCARs.

conclusionThis study showed that distinct genetic markers were associated with phenotype-specific PHT-induced SCARs. Non-genetic factor, omeprazole co-medication, was strongly associated with PHT-induced DRESS/DHS in addition to variants in HLA-B and CYP2C genes. Combined markers may be better predictors for PHT-induced SCARs.

Indexed as

AdultAgedAnticonvulsantsAnti-Ulcer AgentsAsian PeopleCytochrome P-450 CYP2C19Cytochrome P-450 CYP2C9Drug EruptionsFemaleGenotypeHLA-B AntigensHumansMaleMiddle AgedOdds RatioOmeprazoleAnticonvulsantsAnti-Ulcer AgentsCYP2C19 protein, humanCYP2C9 protein, humanCytochrome P-450 CYP2C19Cytochrome P-450 CYP2C9HLA-B AntigensOmeprazolePhenytoinProton Pump InhibitorsCYP2CDRESS/DHSHLA-BOmeprazolePhenytoinSJS/TEN

Identifiers

PMID28391407
OpenAlexW2604762471

What OpenQuestion holds

Textmetadata
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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.