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Effects of dupilumab on mannitol airway hyperresponsiveness in uncontrolled severe asthma.
Journal of Allergy and Clinical Immunology ( IF 11.4 ) Pub Date : 2024-11-26 , DOI: 10.1016/j.jaci.2024.11.024
Kirsten E Stewart,Chris RuiWen Kuo,Rory Chan,Brian J Lipworth

BACKGROUND Airway hyper-responsiveness (AHR) is a hallmark of persistent asthma. However, effects of IL-4/13 blockade with dupilumab (Dupi) on AHR are unknown. OBJECTIVE To investigate the effect of 12 weeks of Dupi on AHR, asthma control and quality of life. METHODS After a 4-week run-in on beclomethasone/formoterol(BDP/FM) MART (baseline), participants with uncontrolled type-2 high severe asthma received open-label Dupi 300mg 2-weekly, for 12 weeks. Mannitol challenges were done at baseline, 2, 4 and 12 weeks and following a 12-week washout. Study power was 90% to detect 1 doubling difference (dd) in mannitol PD10 FEV1 threshold at week 12. RESULTS 23 out of 24 enrolled patients completed per protocol mannitol AHR at 12 weeks. Mean baseline values were: age 52 years; FEV1 82%; ACQ 2.53, mini-AQLQ 3.84; ICS dose 1300μg; FeNO 50ppb; Eos 552cells/μl. Mannitol sensitivity as PD10 was significantly attenuated by week 4, and reactivity as response dose ratio (RDR) by week 2. After 12 weeks of Dupi, mean (95%CI) dd for PD10 was 1.78 (1.23,2.33) p<0.001 and for RDR was 3.40 (2.25,4.55) p<0.001. At week 12, ACQ improved by 1.73, (1.11,2.36) p<0.001, mini-AQLQ by 2.31 (1.57,3.05) p<0.001, FEV1 by 0.39L (0.11,0.67) p<0.01 and PEF by 61L/min (24,98) p<0.001. BDP/FM MART requirement was reduced at 12 weeks vs baseline by 1.7 puffs/day (0.7,2.7) p<0.01. After washout at week 24 the dd change was 0.96 (0.02,1.91) p<0.05. CONCLUSION Dupilumab attenuated mannitol AHR to a clinically relevant degree despite concomitant ICS reduction, combined with improvements in lung function, asthma control and quality of life.

中文翻译:


dupilumab 对不受控制的严重哮喘中甘露醇气道高反应性的影响。



背景 气道高反应性 (AHR) 是持续性哮喘的标志。然而,用 dupilumab (Dupi) 阻断 IL-4/13 对 AHR 的影响尚不清楚。目的 探讨 Dupi 12 周对 AHR、哮喘控制和生活质量的影响。方法 在倍氯米松/福莫特罗 (BDP/FM) MART (基线) 磨合 4 周后,患有不受控制的 2 型严重高度哮喘的参与者每周 2 次接受开放标签的 Dupi 300 毫克,持续 12 周。甘露醇激发试验在基线、 2 、 4 和 12 周以及 12 周清除后进行。在第 12 周时检测到甘露醇 PD10 FEV1 阈值 1 倍差异 (dd) 的研究能力为 90%。结果 24 名入组患者中有 23 名在 12 周时按照方案完成了甘露醇 AHR。平均基线值为:年龄 52 岁;FEV1 82%;ACQ 2.53,迷你 AQLQ 3.84;ICS 剂量 1300μg;FeNO 50ppb;Eos 552 个细胞/μl。第 4 周时,PD10 的甘露醇敏感性显着减弱,第 2 周的反应性作为反应剂量比 (RDR)。Dupi 12 周后,PD10 的平均 (95%CI) dd 为 1.78 (1.23,2.33) p<0.001,RDR 为 3.40 (2.25,4.55) p<0.001。第 12 周时,ACQ 改善了 1.73,(1.11,2.36) p<0.001,微型 AQLQ 改善了 2.31 (1.57,3.05) p<0.001,FEV1 改善了 0.39L (0.11,0.67) p<0.01,PEF 改善了 61L/min (24,98) p<0.001。与基线相比,12 周时 BDP/FM MART 需求量减少了 1.7 口/天 (0.7,2.7) p<0.01。第 24 周清除后,dd 变化为 0.96 (0.02,1.91) p<0.05。结论 尽管伴随着 ICS 减少,但 Dupilumab 将甘露醇 AHR 减弱到临床相关程度,同时改善了肺功能、哮喘控制和生活质量。
更新日期:2024-11-26
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