A Phase 2b, Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel-group, Dose-selection Study of S-600918 in Patients With Refractory Chronic Cough
The primary objective of this study is to determine the optimal dose of S-600918 in patients with refractory chronic cough by evaluating the change from baseline in 24-hour cough frequency (coughs per hour) with S-600918 compared with placebo..
Key Inclusion Criteria:
- Having refractory chronic cough (including unexplained chronic cough) for at least 1 year.
- If female and of childbearing potential, agreement to use one of the allowed contraceptive methods.
- Capable of giving signed informed consent.
Key Exclusion Criteria:
- Currently smokes or uses potentially irritating inhalational agents (eg, e-cigarettes, smokeless cigarettes, vaping); stopped smoking or using potentially irritating inhalational agents within the last year; or has a smoking history of 20 pack-years or more.
- Has chronic obstructive pulmonary disease or uncontrolled asthma.
- Has a clinically unstable medical condition.
- History of or ongoing significant psychiatric disorder.
- History of respiratory tract infection or significant change in lung function or a pulmonary condition in the last 4 weeks.
- History of malignancy in the last 5 years.
- History of severe drug allergy.
- History of alcohol or drug abuse in the last year or currently uses any form of marijuana or illicit drugs.
- Has a clinically significant finding on a chest x-ray or chest computed tomography (CT) scan in the last year.
- Has systolic blood pressure > 160 mm Hg or diastolic blood pressure > 90 mm Hg.
- Received S-600918 previously.
- Received an investigational drug in the last 3 months.
- Received an angiotensin converting enzyme (ACE) inhibitor in the last 3 months or requires such treatment.
- Has a positive serologic test for human immunodeficiency virus (HIV) antigen or antibody, hepatitis B virus surface antigen, or hepatitis C virus ribonucleic acid (RNA).
- If female, pregnant or trying to become pregnant or breastfeeding.
For more information, please call 309-452-0995 and ask to speak to a coordinator.