This is news about a preliminary animal model and in vitro tissue study, not news about a clinical trial with human patients. From the Cardiff University press

This is news about a preliminary animal model and in vitro tissue study, not news about a clinical trial with human patients. From the Cardiff University press release (not usually a good source for a medical story): "The team used mouse models of asthma and human airway tissue from asthmatic and non-asthmatic people to reach their findings." "If we can prove that calcilytics are safe when administered directly to the lung in people, then in five years we could be in a position to treat patients and potentially stop asthma from happening in the first place," added Professor Riccardi." Do I need to add emphasis to the words "if" and "safe" and "could be" and "potentially" here, or is that already apparent to everyone? I care about finding effective asthma prevention and treatment, as I have close relatives who have asthma, but this isn't the news I have been waiting for, not yet. It will be wonderful if other researchers are able to replicate these preliminary findings and if findings about this receptor in human tissues helps lead to development of an effective asthma treatment, but that is not a sure outcome from this news, alas.