This study will investigate the safety, tolerability, pharmacokinetics and pharmacodynamics of single ascending doses of APR002 in healthy subjects.

A Phase 1, Randomized, Blinded, Placebo-Controlled, First-in-Human, Single Ascending Dose Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of APR002 Administered by Inhalation in Healthy Volunteers

Inclusion Criteria:

• Healthy men or women aged 18 to 55 years (inclusive) with suitable veins for cannulation or repeated venipuncture.
• Women can be of childbearing potential and must have been stable on a highly effective contraceptive method for at least 3 months prior to Visit 1 (screening) and be willing to continue on the chosen contraceptive method
• Male subjects should be willing to use a condom (with spermicide) to prevent pregnancy and drug exposure of a female partner and refrain from donating sperm or fathering a child from the day of the investigational product administration until 3 months
• Have a body mass index (BMI) between 18 and 32 kg/m2 and weigh at least 45 kg.

Exclusion Criteria:

• History or presence of clinically significant medical (e.g., chronic obstructive pulmonary disease, asthma, COVID-19, etc.) or psychiatric condition or disease
• Abnormal vital signs, after minutes rest, defined as any of the following (SBP > 140 mmHg, Diastolic blood pressure (DBP) > 90 mmHg, Heart rate < 40 or > 99 beats per minute)
• Prolonged QTcF > 450 ms or family history of long QT syndrome