Affiliation:
1. Department of Gastroenterology Children's Hospital of Chongqing Medical University (CHCQMU) Chongqing China
2. National Clinical Research Center for Child Health and Disorders Ministry of Education Key Laboratory of Child Development and Disorders Chongqing Key Laboratory of Pediatrics Chongqing Key Laboratory of Child Health and Nutrition Chongqing China
3. Big Data Center for Children's Medical Care Chongqing China
4. Clinical Epidemiology and Biostatistics Department Children’s Hospital of Chongqing Medical University Chongqing China
5. Department of Nutrition Children's Hospital of Chongqing Medical University Chongqing China
6. Department of Gastroenterology Chongqing General Hospital Chongqing China
7. College of Stomatology Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education Chongqing China
Abstract
AbstractTherapeutic drug monitoring (TDM) plays an important role in guiding treatment plan adjustments and clinical outcomes in Crohn's disease. To evaluate the role of TDM‐guided optimization of infliximab dosage in patients with pediatric Crohn's disease. Medical records of patients with pediatric Crohn's disease who were treated with infliximab and had proactive TDM from June 2020 to June 2022 at the Children's Hospital of Chongqing Medical University were included. Baseline influencing factors for infliximab trough concentration (TC) and clinical outcomes before and after the treatment change were analyzed to assess the value of adjusting treatment in the patients. Forty‐six patients (male‐to‐female ratio = 1.55:1, age <18 years) were included. Univariate and multivariate analyses showed that hormone exposure (odds ratio: 0.042, 95% confidence interval: 0.002–0.924, p = 0.044), perianal lesions (5.813, 0.984–34.349, p = 0.052), simplified endoscopic score for Crohn's disease (1.656, 1.065–2.577, p = 0.025), and total protein (TP) (0.851, 0.749–0.967, p = 0.014) were correlated with infliximab TC. Shortening the treatment interval increased the infliximab TC (pre vs. post = 1.69 ± 0.8 vs. 12.03 ± 6.64, p = 0.001, n = 12) after 93.9 ± 37.47 days, decreased the pediatric Crohn's disease activity index and simplified endoscopic score for Crohn's disease, and increased the biochemical remission, clinical remission, endoscopic remission, and endoscopic response rates; however, there was no statistical significance. Hormone exposure, perianal lesions, simplified endoscopic score for Crohn's disease, and TP levels before the first infliximab use affected the infliximab TC. Shortening the treatment interval can improve infliximab TC levels and clinical outcomes.
Funder
Chongqing Municipal Education Commission