Evidence map›Paper›PMID 21906289›Full record

SynthesisBMC medical genetics2011

Association of HLA-B*5801 allele and allopurinol-induced Stevens Johnson syndrome and toxic epidermal necrolysis: a systematic review and meta-analysis.

Ratchadaporn Somkrua, Elizabeth E Eickman, Surasak Saokaew, Manupat Lohitnavy, Nathorn Chaiyakunapruk

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMC medical genetics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed, 7 pooled it
12.7field-weighted citation impact, top 1% 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

75 citing papers in PubMed, 7 syntheses or guidelines pooled it, 213 citations in OpenAlex.

  1. Pooled it
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  6. Pooled it
  7. Guideline
  8. Article
  9. Article
  10. Observational
  11. External Quality Assessment of Molecular Testing forDiagnostics (Basel, Switzerland) · 2026
    Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Updates in the pathogenesis of SJS/TEN.Allergology international : official journal of the Japanese Society of Allergology · 2025
    Review
  17. Article
  18. Drug-Induced Hypouricemia.Drug safety · 2025
    Review
  19. Review
  20. Article

15 more citing papers are in PubMed but not listed here.

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

5 authors at 4 institutions in 3 countries.

Ratchadaporn SomkruaCenter of Pharmaceutical Outcomes Research (CPOR), Naresuan University, Phitsanulok, Thailand.
Elizabeth E Eickman
Surasak Saokaew
Manupat Lohitnavy
Nathorn Chaiyakunapruk
Naresuan University · THUniversity of Nebraska Medical Center · USUniversity of Phayao · THUniversity of Wisconsin–Madison · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDespite some studies suggesting a possible association between human leukocyte antigen, HLA-B*5801 and allopurinol induced Stevens-Johnson Syndrome (SJS) and Toxic Epidermal Necrolysis (TEN), the evidence of association and its magnitude remain inconclusive. This study aims to systematically review and meta-analyze the association between HLA-B*5801 allele and allopurinol-induced SJS/TEN.

methodsA comprehensive search was performed in databases including MEDLINE, Pre-MEDLINE, Cochrane Library, EMBASE, International Pharmaceutical Abstracts (IPA), CINAHL, PsychInfo, the WHO International, Clinical Trial Registry, and ClinicalTrial.gov from their inceptions to June 2011. Only studies investigating association between HLA-B*5801 with allopurinol-induced SJS/TEN were included. All studies were extracted by two independent authors. The primary analysis was the carrier frequency of HLA-B*5801 comparison between allopurinol-induced SJS/TEN cases and each comparative group. The pooled odds ratios were calculated using a random effect model.

resultsA total of 4 studies with 55 SJS/TEN cases and 678 matched-controls (allopurinol-tolerant control) was identified, while 5 studies with 69 SJS/TEN cases and 3378 population-controls (general population) were found. SJS/TEN cases were found to be significantly associated with HLA-B*5801 allele in both groups of studies with matched-control (OR 96.60, 95%CI 24.49-381.00, p < 0.001) and population-control (OR 79.28, 95%CI 41.51-151.35, p < 0.001). Subgroup analysis for Asian and Non-Asian population yielded similar findings.

conclusionWe found a strong and significant association between HLA-B*5801 and allopurinol-induced SJS/TEN. Therefore, HLA-B*5801 allele screening may be considered in patients who will be treated with allopurinol.

Indexed as

AllelesAdultAgedAged, 80 and overAllopurinolCase-Control StudiesFemaleGenotypeHeterozygoteHLA-B AntigensHumansMaleMiddle AgedOdds RatioStevens-Johnson SyndromeAllopurinolHLA-B*58:01 antigenHLA-B Antigens

Identifiers

PMID21906289
PMCPMC3189112
OpenAlexW2159835983

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.