Clinical Trials

Inclusion Criteria:

- Adults ≥18 to ≤80 years of age

- History of refractory or unexplained chronic cough

- Historical Chest radiograph or CT scan that does not demonstrate any abnormality
considered to be significantly contributing to chronic cough

- Not pregnant, breastfeeding, or lactating and agree to use a highly effective method
of acceptable contraceptive for the trial duration, if applicable

- Agree to discontinue antitussive medications for the trial duration

Exclusion Criteria:

- Current smoker (including cannabis products) or previous smoker having recently given
up smoking or has a history of smoking of >20 pack-years

- History of significant cardiovascular disease or any clinically significant
abnormalities in rhythm or conduction

- History or presence of significant hepatic disease or any other condition known to
interfere with absorption, distribution, metabolism, or excretion of drugs.

- History of any malignancy within 5 years of screening except for basal cell or
squamous cell in situ skin carcinomas or carcinoma in situ of the cervix that has been
treated with no evidence of recurrence.

- Recent history of drug or alcohol abuse or a positive urine drug test at screening

- Positive serology test for Hepatitis B virus (HBV), Hepatitis C virus (HCV), or HIV-1
and HIV-2

- Currently taking an angiotensin converting enzyme inhibitor (ACEI) or has used an ACEI
within 3 months of Screening.

Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Eligibility last updated 11/23/22. Questions regarding updates should be directed to the study team contact.