Evidence map›Paper›PMID 40099566›Full record

ArticleBritish journal of clinical pharmacology2025

Severe myelosuppression and alopecia after thiopurine initiation in a patient with NUDT15 deficiency.

Annie Siyu Wu, Lee Mozessohn, Richard B Kim, Jonathan S Zipursky

Abstract readCase Reports
In one paragraph

Article in British journal of clinical pharmacology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. 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

4 authors.

Annie Siyu WuDepartment of Medicine, University of Toronto, Toronto, Ontario, Canada.ORCID https://orcid.org/0009-0003-7636-7829
Lee MozessohnDepartment of Medicine, University of Toronto, Toronto, Ontario, Canada.
Richard B KimDepartment of Medicine, University of Western Ontario, London, Ontario, Canada.ORCID https://orcid.org/0000-0001-8148-1632
Jonathan S ZipurskyDepartment of Medicine, University of Toronto, Toronto, Ontario, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Thiopurines are a class of immunosuppressant and antineoplastic agents. They are widely used in the treatment of inflammatory bowel disease, haematological malignancies and autoimmune diseases, but can cause significant toxicity. Inherited gene mutations are now recognized as independent risk factors for severe adverse drug reactions to thiopurines even at 10-fold dose reductions. We present a case of thiopurine toxicity resulting in severe myelosuppression, hepatotoxicity and alopecia in an individual with homozygous *3/*3 loss-of-function alleles in the NUDT15 gene. Our case highlights important differences in gene mutation frequencies between races that can help guide pharmacogenomic testing.

Indexed as

AlopeciaAzathioprineChemical and Drug Induced Liver InjuryImmunosuppressive AgentsMercaptopurinePyrophosphatasesHumansLoss of Function MutationNudix HydrolasesAzathioprineImmunosuppressive AgentsMercaptopurineNudix HydrolasesNUDT15 protein, humanPyrophosphatasesadverse drug reactionsNUDT15thiopurine toxicityTPMT

Identifiers

PMID40099566
PMCPMC12035587

What OpenQuestion holds

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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.