Gefapixant, a P2X3 receptor antagonist, for the treatment of refractory or unexplained chronic cough: a randomised, double-blind, controlled, parallel-group, phase 2b trial.
Lancet Respir Med. 2020 Aug;8(8):775-785. doi: 10.1016/S2213-2600(19)30471-0. Epub 2020 Feb 25.
Lancet Respir Med. 2020.
PMID: 32109425
Clinical Trial.