The Efficacy and Safety of Antiinterleukin 13, a Monoclonal Antibody, in Adult Patients With Asthma: A Systematic Review and Meta-Analysis

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Abstract

Effects of antiinterleukin 13 therapies in patients with asthma remain inconsistent. Therefore, we aimed to further clarify the efficacy and safety of antiinterleukin 13 therapies in adult asthmatics by a systematic review and meta-analysis.

Randomized controlled trials which reported pulmonary functions, fraction of exhaled nitric oxide (FeNO), Asthma Control Questionnaire (ACQ), rescue use of short-acting-β-agonist (SABA), and rate of asthmatic exacerbation and adverse events were identified in Pubmed, Embase, Medline, Cochrane Central Register of Controlled Trials (CENTRAL), American College of Physician (ACP) Journal Club, and ISI Web of Science, reference lists and by manual searches. Randomized-effect models were used in meta-analysis to calculate pooled mean difference and relative risks (RR).

Eight studies with 957 patients were enrolled. Systematic review showed that treatment with antiinterleukin 13 antibodies could significantly improve peak expiratory flow (PEF), decrease FeNO and asthmatic exacerbation, but could not decrease blood and sputum eosinophil levels, improve FEV1, inhibit methacholine PC20, or reduce ACQ scores. Two studies reported opposite results in reducing rescue use of SABA. Meta-analysis showed that antiinterleukin 13 monoclonal therapies could significantly decrease asthmatic exacerbation (RR 0.55, 95% CI: 0.31–0.96, z = 2.10, P = 0.04), but did not significantly improve the FEV1 (95% CI: −1.03 to 2.22, z = 0.72, P = 0.47) or increasing adverse events (RR 1.00, 95% CI: 0.91–1.10, z = 0.00, P = 1.00).

Antiinterleukin 13 monoclonal therapies could be safely used to improve PEF, decrease FeNO and asthmatic exacerbation, and probably reduce rescue use of SABA, but could not decrease blood and sputum eosinophil levels, improve FEV1, inhibit methacholine PC20, or reduce ACQ scores.

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