A Comparison of VR647 and Conventionally Nebulized Budesonide in Healthy Volunteers and Adult Asthma Subjects

This is a three part, randomized, open-label, crossover, Phase 1 trial in adults. Parts 1 and 2 will enroll healthy male and female subjects. Part 3 will enroll subjects with mild asthma. This study will assess the pharmacokinetics, safety and tolerability of single doses of budesonide delivered by VR647 Inhalation System (AKITA® JET) with mouthpiece or face mask to single doses of budesonide delivered by a conventional jet nebulizer (PARI VIOS®) with mouthpiece or face mask.