Mechanisms of Change in Behavioral Cough Suppression Therapy for Refractory Chronic Cough
Status:
NOT_YET_RECRUITING
Trial end date:
2030-03-31
Target enrollment:
Participant gender:
Summary
This study is testing new ways to help people who have chronic cough that has not improved with typical treatments. One approach is called behavioral cough suppression (BCS) therapy, which teaches people techniques to stop themselves from coughing. Another approach uses capsaicin, the substance that makes chili peppers hot, to help reduce the body's sensitivity to cough triggers.
In this study, we will test three treatments:
* BCS therapy with capsaicin (BCS+CAP),
* BCS therapy with a placebo (BCS+Sham),
* Capsaicin stimulation alone (CAP).
The investigators will enroll 150 adults with chronic cough and randomly assign them to one of the three treatments. Each person will attend 12 treatment sessions.
The investigators want to find out how these treatments affect:
* How sensitive someone is to things that make them cough,
* How well they can hold back a cough when they try,
* How their brain responds to things that cause an urge-to-cough,
* And how much their coughing affects their quality of life.
The investigators believe all treatments may reduce sensitivity to cough stimulants, but BCS treatments will also improve how people sense and control the urge to cough. The investigators think combining BCS with capsaicin will work the best overall.
Phase:
PHASE2
Details
Lead Sponsor:
University of Montana
Collaborators:
Emory University University of Colorado, Denver University of Melbourne