• Huda Badri and Jaclyn A Smith.
• North Manchester General Hospital, Manchester, UK; Division of Infection, Immunity and Respiratory Medicine, The University of Manchester, Manchester, UK.
• Pulm Pharmacol Ther. 2019 Dec 1; 59: 101853.

AbstractCough is mediated by vagal afferent fibres innervating the larynx and proximal airways. Pre-clinical studies suggest that vagal C fibres produce Substance P, one of the tachykinin family of neuropeptides, which has been shown to enhance cough via the neurokinin-1 (NK-1) receptor and studies in animal models have also shown that NK-1 antagonists are effective at blocking induced cough. In the past, tachykinin receptor antagonists have yielded disappointing results in treating asthma and cough, however most of the activity of the agents tested was restricted to the peripheral nervous system and also the outcomes measures evaluating cough not optimal. More recently a small proof of concept study has suggest that aprepitant, an NK-1 antagonist licensed for the prevention of chemotherapy induced nausea and vomiting, might have beneficial effects on cough frequency in patients with lung cancer. In this review we investigate the current evidence for the anti-tussive effect of these therapies and the clinical trials in progress.Copyright © 2019 Elsevier Ltd. All rights reserved.

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