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Safety of Thioguanine in Pediatric Inflammatory Bowel Disease: A Multi-Center Case Series

  • Ahmed B. Bayoumy
  • , Jasmijn Z. Jagt
  • , Herbert M. Van Wering
  • , Lissy De Ridder
  • , Thalia Hummel
  • , Victorien M. Wolters
  • , Janneke Stapelbroek
  • , Marc A. Benninga
  • , Chris J.J. Mulder
  • , Nanne K.H. De Boer
  • , Tim G.J. De Meij*
  • *Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Objectives: Thioguanine (TG) has been shown as a safe alternative in adults with inflammatory bowel disease (IBD) who did not tolerate conventional thiopurines [azathioprine (AZA)/mercaptopurine]. However, data in pediatric IBD are scarce. Therefore, we aimed to assess the safety of TG as maintenance therapy. Methods: A retrospective, multicenter cohort study of children with IBD on TG was performed in the Netherlands. TG-related adverse events (AE) were assessed and listed according to the common terminology criteria for AE. Results: Thirty-six children with IBD (median age 14.5 years) on TG (median dose 15 mg/day) were included in 6 centers. Five AE occurred during follow-up [pancreatitis (grade 3), hepatotoxicity (grade 3) (n = 2), Clostridium difficile infection (grade 2), and abdominal pain (grade 2)]. All patients (n = 8) with a previously AZA-induced pancreatitis did not redevelop pancreatitis on TG. Conclusions: In pediatric IBD, TG seems a safe alternative in case of AZA-induced pancreatitis. Further research assessing long-Term TG-related safety and efficacy is needed.

Original languageEnglish
Pages (from-to)E111-E115
JournalJournal of Pediatric Gastroenterology and Nutrition
Volume75
Issue number6
DOIs
Publication statusPublished - 1 Dec 2022

Keywords

  • inflammatory bowel disease
  • pediatrics
  • thioguanine
  • thiopurines

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