Leucine-Rich Alpha-2 Glycoprotein May Be Predictive of the Adalimumab Trough Level and Antidrug Antibody Development for Patients with Inflammatory Bowel Disease: A Sub-Analysis of the PLANET Study

Shunichi Yanai, Shinichiro Shinzaki, Katsuyoshi Matsuoka, Shinta Mizuno, Hideki Iijima, Tetsuji Naka, Takanori Kanai, Takayuki Matsumoto

研究成果: Article査読

抄録

Introduction: The aim of this study was to examine whether biomarkers are predictive of the adalimumab (ADA) trough level and antidrug antibody development in patients with Crohn's disease (CD) and ulcerative colitis (UC). Methods: Using data obtained in a prospective, multicenter, observational study (PLANET), we assessed serial changes in a novel biomarker-leucine-rich alpha-2 glycoprotein (LRG)-during ADA treatment for patients with active CD and UC. We measured serum LRG, C-reactive protein (CRP), and fecal calprotectin (fCAL) at weeks 0, 12, 24, and 52. The ADA trough level and anti-ADA antibody (AAA) were also measured at weeks 12 and 52. Correlations between the ADA trough level, AAA, and biomarkers were examined. Results: In all, 34 patients with CD and 47 patients with UC were enrolled. The ADA trough level at week 12 or at the time of ADA withdrawal was 8.5 ± 3.9 in the AAA-negative group (n = 70) and 2.9 ± 2.7 μg/mL in the AAA-positive group (n = 8) (p < 0.0001). The ADA trough level at week 12 or at the time of ADA withdrawal was associated with pretreatment LRG (p = 0.0437 and r =-0.23). Conclusion: LRG, rather than CRP or fCAL, may be a marker for predicting the trough level of ADA for patients with CD and UC treated with ADA.

本文言語English
ページ(範囲)929-937
ページ数9
ジャーナルDigestion
102
6
DOI
出版ステータスPublished - 2021 11 1

ASJC Scopus subject areas

  • 消化器病学

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