BenRalizumab Effect on Airway Remodeling in Severe asTHma

Summary

Response to biologic therapies in severe asthma is variable, with patients being either non-responders, responders or super-responders. There is currently no explanation for this broad variation in response. It is important to examine whether these patients have distinct characteristics that could help the treating physician in making the correct diagnosis in clinical practice. Aim of this clinical study is to evaluate the efficacy of benralizumab, a humanized an anti-interleukin 5 receptor α monoclonal antibody in patients with severe eosinophilic asthma and to evaluate airway remodeling before and after benralizumab treatment. Hypothesis Identification of pathological and clinical characteristics in patients with severe eosinophilic asthma after benralizumab treatment regarding the airway remodeling, inflammatory cells, and other biomarkers on a long-term basis. Research questions Is there any improvement in airway remodeling? Are there any biomarkers to predict response to benralizumab treatment in severe eosinophilic asthmatic patients?

Timeline

Start

2024-03-01

Primary completion

2025-12-31

Completion

2026-06-01

Publications

• Results Kuo CW, Liao XM, Huang YC, Chang HY, Shieh CC. Bronchoscopy-guided bronchial epithelium sampling as a tool for selecting the optimal biologic treatment in a patient with severe asthma: a case report. Allergy Asthma Clin Immunol. 2019 Nov 27;15:76. doi: 10.1186/s13223-019-0378-6. eCollection 2019.
• Results Bara I, Ozier A, Tunon de Lara JM, Marthan R, Berger P. Pathophysiology of bronchial smooth muscle remodelling in asthma. Eur Respir J. 2010 Nov;36(5):1174-84. doi: 10.1183/09031936.00019810.
• Results Rasmussen F, Taylor DR, Flannery EM, Cowan JO, Greene JM, Herbison GP, Sears MR. Risk factors for airway remodeling in asthma manifested by a low postbronchodilator FEV1/vital capacity ratio: a longitudinal population study from childhood to adulthood. Am J Respir Crit Care Med. 2002 Jun 1;165(11):1480-8. doi: 10.1164/rccm.2108009.
• Results Yancey SW, Keene ON, Albers FC, Ortega H, Bates S, Bleecker ER, Pavord I. Biomarkers for severe eosinophilic asthma. J Allergy Clin Immunol. 2017 Dec;140(6):1509-1518. doi: 10.1016/j.jaci.2017.10.005.
• Results Siddiqui S, Bachert C, Bjermer L, Buchheit KM, Castro M, Qin Y, Rupani H, Sagara H, Howarth P, Taille C. Eosinophils and tissue remodeling: Relevance to airway disease. J Allergy Clin Immunol. 2023 Oct;152(4):841-857. doi: 10.1016/j.jaci.2023.06.005. Epub 2023 Jun 19.
• Results Berair R, Hartley R, Mistry V, Sheshadri A, Gupta S, Singapuri A, Gonem S, Marshall RP, Sousa AR, Shikotra A, Kay R, Wardlaw A, Bradding P, Siddiqui S, Castro M, Brightling CE. Associations in asthma between quantitative computed tomography and bronchial biopsy-derived airway remodelling. Eur Respir J. 2017 May 1;49(5):1601507. doi: 10.1183/13993003.01507-2016. Print 2017 May.

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