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Obstructive sleep apnea (OSA) is a highly prevalent disorder with serious health consequences but limited therapeutic options. For a subset of those with OSA, a key underlying mechanism is hypersensitive chemoreflex control of breathing. There is no approved therapy that targets this endotypic trait. Here we determine whether the P2X3 receptor antagonist gefapixant, which is predicted to attenuate hypersensitive carotid chemoreflexes, reduces OSA severity in patients with chemoreflex-dependent OSA.
Robbins et al. (Mon,) studied this question.