A nationwide real-world study on dynamic ustekinumab dosing and concomitant medication use among Crohn’s disease patients in Finland

Taina Sipponen, Clas Göran af Björkesten, Taru Hallinen, Tuire Ilus, Erkki Soini, Anja Eberl, Mikko Heikura, Mikko Kellokumpu, Ritva Koskela, Christian Nielsen, Heikki Nuutinen, Markku Heikkinen, Ulla Maija Suhonen, Jyrki Tillonen, E. Christina M. Wennerström, Andras Borsi, Minni R. Koivunen, FINUSTE Study group

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Abstract

Background: Real-world evidence to support optimal ustekinumab dosing for refractory Crohn’s disease (CD) patients remains limited. Data from a retrospective nationwide chart review study was utilized to explore ustekinumab dosing dynamics and optimization, identify possible clinical predictors of dose intensification, and to evaluate ustekinumab trough concentrations (TCs) and concomitant medication use in Finland. Methods: Information gathered from17 Finnish hospitals included clinical chart data from 155 adult CD patients who received intravenous ustekinumab induction during 2017–2018. Data on ustekinumab dosing and TCs, concomitant corticosteroid and immunosuppressant use, and antiustekinumab antibodies were analyzed in a two-year follow-up, subject to availability. Results: Among 140 patients onustekinumab maintenance therapy, dose optimization was required in 55(39%) of the patients, and 41/47 dose-intensified patients (87%) persisted on ustekinumab. At baseline, dose-intensified patient group had significantly higher C-reactive protein (CRP) levels, and at week 16, significantly lower ustekinumab TCs than in patients without dose intensification. Irrespective of dose optimization, a statistically significant reduction in the use of corticosteroids was observed at both 16 weeks and one year, coupled with an increased proportion of patients on ustekinumab monotherapy. Antiustekinumab antibodies were undetectable in all 28 samples from 25 patients collected throughout the study period. Conclusions: Nearly a third of all CD patients on ustekinumab maintenance therapy, with a history of treatment-refractory and long-standing disease, required dose intensification. These patients persisted on ustekinumab and had significant reduction of corticosteroid use. Increased baseline CRP was identified as the sole indicator of dose intensification. Trial registration: EUPAS30920.

Original languageEnglish
JournalScandinavian Journal of Gastroenterology
DOIs
Publication statusE-pub ahead of print - Apr 2021
Publication typeA1 Journal article-refereed

Keywords

  • Biologicals
  • dosing
  • inflammatory bowel disease
  • trough level
  • ustekinumab
  • ustekinumab antibodies

Publication forum classification

  • Publication forum level 1

ASJC Scopus subject areas

  • Gastroenterology

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