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Tezepelumab as an Emerging Therapeutic Option for the Treatment of Severe Asthma: Evidence to Date

Authors Dorey-Stein ZL, Shenoy KV

Received 6 October 2020

Accepted for publication 22 December 2020

Published 27 January 2021 Volume 2021:15 Pages 331—338

DOI https://doi.org/10.2147/DDDT.S250825

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Anastasios Lymperopoulos


Zachariah L Dorey-Stein, Kartik V Shenoy

Department of Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA

Correspondence: Zachariah L Dorey-Stein
Department of Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, 3401 North Broad Street, 7th Floor, Philadelphia, PA 19140, USA
Tel +1 267-300-8047
Fax +1 215-707-6867
Email zachariah.dorey-stein@tuhs.temple.edu

Abstract: Asthma is a complex heterogeneous disease defined by chronic inflammation of the airways. Patients present with wheezing, chest tightness, cough and shortness of breath. Bronchial hyperresponsiveness and variable expiratory airflow limitation are hallmark features. About 3.6– 6.1% of patients, despite receiving high-dose inhaled corticosteroids (ICS) and a second controller medication, report persistent symptoms referred to as severe asthma. Uncontrolled severe asthma is associated with increased mortality, morbidity, diminished quality of life and increased health expenditures. The development of modern biological therapy has revolutionized severe asthma treatment. By targeting specific chemokines, asthma control has drastically improved, resulting in better quality of life, less emergency department visits and inpatient admissions, and decreased chronic systemic corticosteroid utilization. Despite these advances, there remains a subset of asthma patients who remain symptomatic with poor quality of life and heavy utilization of the healthcare system. Recently attention has been given to pharmaceutical therapy directed at receptors and cytokines on the epithelial layer of the lung referred to as “alarmins”. Thymic stromal lymphopoietin (TSLP) is an interleukin-7-like receptor family found on the epithelial layer of the lung that releases a cytokine cascade inducing eosinophilic inflammation, mucus production and airflow obstruction in asthmatics. Tezepelumab is the first investigational monoclonal antibody that inhibits TSLP. Proof of concept study and phase IIb studies demonstrated reduced asthma exacerbations, improvement in quality of life, less decline in FEV1 and decrease in biochemical inflammatory markers in comparison to placebo. It is presently undergoing three phase III studies and an additional phase II study.

Keywords: tezepelumab, severe uncontrolled asthma, eosinophilic asthma, non-eosinophilic asthma, monoclonal antibody, biological therapy

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