150
Participants
Start Date
August 1, 2025
Primary Completion Date
June 30, 2029
Study Completion Date
March 31, 2030
Behavioral cough suppression therapy combined with inactive inhaled drug (BCS+Sham)
Behavioral cough suppression therapy plus inactive inhaled drug. Treatment given twice per week for 12 sessions.
Behavioral cough suppression therapy combined with capsaicin inhalation (BCS+CAP)
Behavioral cough suppression therapy combined with inhaled capsaicin (cough stimulant). Treatment given twice per week for 12 sessions.
Inhaled capsaicin (CAP)
Repeated inhalation of diluted capsaicin in increasing concentrations. Treatment given twice per week for 12 sessions.
Emory University, Atlanta
University of Montana, Missoula
University of Colorado Anschutz Medical Campus, Aurora
University of Colorado, Denver
OTHER
Emory University
OTHER
University of Melbourne
OTHER
University of Montana
OTHER