86 citations
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November 2015 in “Journal of Gastroenterology” This study reported that the NUDT15 R139C genetic variant was significantly associated with thiopurine-induced leukocytopenia in Japanese inflammatory bowel disease patients, independent of 6-thioguanine nucleotide levels.
August 2023 in “Research Square (Research Square)” This study found that among patients with inflammatory bowel disease, those with the NUDT15 mutation had a reduced tolerance for thiopurine dosage over the long term and were more likely to require hospitalization and surgery compared to those without the mutation.
40 citations
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January 2017 in “Intestinal Research” This study found that among Japanese IBD patients, the NUDT15 p.Arg139Cys variant was significantly associated with thiopurine-induced leukopenia and severe hair loss, suggesting its genotyping is important for predicting these adverse events.
5 citations
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January 2021 in “Indian Journal of Critical Care Medicine” This case report details severe hematological toxicity and fatal complications from azathioprine in a patient with Crohn's disease with a homozygous NUDT 15 variant, suggesting pharmacogenomic testing before treatment.
April 2018 in “Journal of Investigative Dermatology” In this study, researchers found that the NUDT15 R139C gene variant is a significant genetic risk factor for azathioprine-induced severe myelotoxicity in Japanese patients with dermatological conditions, suggesting that screening for this variant may help prevent adverse reactions in East-Asian populations.
