A study to find out how safe is it to give people a new medicine for asthma (GDC-4379), and to see how this medicine is processed in the body

Phase 1 study to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of inhaled GDC-4379 conducted in three parts: A single-ascending dose study in healthy volunteers, a multiple-ascending dose study in healthy volunteers, and a proof-of-activity study in patients with mild asthma