Overview
This is a Phase 1a/1b study to test the safety, tolerability, microbiological response, and pharmacokinetics of inhaled Rev-56 compared to placebo in adult healthy participants and non-cystic fibrosis bronchiectasis (NCFB) patients with P. aeruginosa, respectively.
Phase 1a (Part A) will evaluate single doses of inhaled Rev-56 in adult healthy participants and includes up to 5 cohorts. Eligible participants will be randomized to active treatment or placebo in a 3:1 randomization scheme.
Phase 1b (Part B) will evaluate the safety, tolerability, microbiological response, and pharmacokinetics of multiple doses of inhaled Rev-56 in NCFB patients with P. aeruginosa and includes 2 cohorts evaluating once daily dosing and twice daily dosing, respectively. Eligible participants will be randomized to active treatment or placebo in a 2:1 randomization scheme.
Eligibility
Inclusion Criteria (Healthy Participants):
- Healthy male and female participants aged 18 to 55 years, inclusive
- Body mass index \> 18 to ≤ 32 kg/m\^2
- Forced expiratory volume in 1 second (FEV1) ≥ 80%
- Creatinine clearance ≥ 90 mL/min
- Normal laboratory values and physical exam at screening, or Grade 1 abnormalities that are not clinically significant
Inclusion Criteria (NCFB Patients with P. aeruginosa):
- Male and female NCFB patients aged 18 to 80 years, inclusive
- Bronchiectasis confirmed by prior computerized tomography (CT) scan
- Chronic P. aeruginosa infection (≥ 2 positive cultures within prior 12 months)
- Screening sputum culture positive for P. aeruginosa at ≥ 10\^4 CFU/mL
- FEV1 ≥ 50% (post bronchodilator)
Exclusion Criteria (Healthy Participants):
- Clinically significant medical history
- Acute illness within 4 weeks of screening
- Current smoker or nicotine user
- History of alcohol abuse (within prior 12 months) or drug/chemical abuse
Exclusion Criteria (NCFB Patients with P. aeruginosa):
- Primary asthma, chronic obstructive pulmonary disease (COPD), or cystic fibrosis (CF)
- More than 2 pulmonary exacerbations requiring IV antibiotics within 12 months prior to screening
- Receipt of antibiotics (excluding macrolides) within 30 days prior to screening
- Clinically significant hemoptysis requiring intervention within 30 days prior to screening
- Receiving anti-infective treatment for concurrent nontuberculosis mycobacteria (NTM) or fungal infection
