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NCT06960759

Mechanisms of Change in Behavioral Cough Suppression Therapy for Refractory Chronic Cough

Not yet recruiting Phase 2 Last updated 6 April 2026
What this trial tests

Phase 2 trial testing Behavioral cough suppression therapy combined with inactive inhaled drug (BCS+Sham) in Chronic Cough (CC) in 135 participants. Not yet recruiting.

Timeline
15 May 2026
Primary endpoint
30 June 2029
31 March 2030

Quick facts

Lead sponsorUniversity of Montana
PhasePhase 2
StatusNot yet recruiting
Study typeINTERVENTIONAL
Allocationrandomized
Designparallel
Maskingdouble
Primary purposetreatment
Enrollment135
Start date15 May 2026
Primary completion30 June 2029
Estimated completion31 March 2030
Sites3 locations across United States

Drugs / interventions tested

Conditions studied

Sponsor

University of Montana

Who can join

Adults 18 to 99, any sex, with Chronic Cough (CC) or Refractory Chronic Cough. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

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 a natural substance found in chili peppers (capsaicin) to help reduce the body's sensitivity to cough triggers. In this study, we will test two treatments and include one no-treatment control group. The control group will undergo baseline testing, cough monitoring, and an fMRI brain scan and will be offered BCS at end of study participation. The two treatments include: * BCS therapy with capsaicin (BCS+CAP), * BCS therapy with a placebo (BCS+Sham), The investigators will enroll 135 adults with refractory chronic cough (RCC). 100 participants who qualify and are willing and able to complete 14 study visits in the clinic and two online study visits will be randomly assigned to one of the two treatments. The no-treatment control group (n=35) will be recruited from adults with RCC who are willing to complete baseline testing and fMRI but are not able or willing to attend 14 study clinic visits. These participants will not be randomized. 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 both treatments will reduce sensitivity to cough stimulants, reduce cough severity, and improve quality of life, but BCS+CAP treatment will work better than. BCS+Sham.

Publications & conference data

No peer-reviewed publications indexed yet for this trial.

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Other recruiting trials for Chronic Cough (CC)

Currently open trials in the same condition.

Other University of Montana trials

Trials by the same sponsor.

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Data sources for this page

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT06960759.

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