Symptomatic Improvement in Adults and Adolescents With Eosinophilic Esophagitis Requires Higher Systemic Dupilumab Exposure Than Histologic Response.

• Tác giả: Evan S Dellon, Lila Glotfelty, Mohamed A Kamal, Matthew P Kosloski, Arsalan Shabbir, Christine Xu
• Ngôn ngữ: eng
• Ký hiệu phân loại: 070.48346 Journalism
• Thông tin xuất bản: United States : Clinical and translational gastroenterology , 2025
• Bộ sưu tập: NCBI
• ID: 270823

Tóm tắt

INTRODUCTION: We assessed potential mechanisms behind the requirement for more frequent dupilumab dosing in eosinophilic esophagitis (EoE) compared with other approved indications. METHODS: Results for the phase 3 LIBERTY EoE TREET study coprimary endpoints (proportion of patients achieving a peak intraepithelial eosinophil count of ≤6 eosinophils per high-power field and absolute change from baseline in Dysphagia Symptom Questionnaire total score) were pooled in exposure-response analyses. RESULTS: A steep initial relationship then plateau was observed between higher dupilumab steady-state trough concentrations and decreased eosinophilic infiltration at week 24, whereas a graded exposure-response relationship was observed for symptomatic improvement at week 24. Patients with the highest exposures were more likely to achieve greater symptomatic benefit, independent of strictures or history of dilation. DISCUSSION: The dupilumab 300 mg weekly regimen approved for adults and adolescents with EoE weighing ≥ 40 kg is supported by dose- and exposure-response relationships.