Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
Official Title: A Phase I, Randomized, Double-Blind, Placebo-Controlled, Dose-Escalation Study to Evaluate the Safety, Tolerability, Immunogenicity, and Viral Shedding of MEDI-534, a Live, Attenuated Intranasal Vacci
Brief Summary: This is a randomized, double-blind, placebo-controlled, dose-escalation, Phase 1, multi-center study to evaluate the safety, tolerability, immunogenicity, and viral shedding of MEDI-534 in healthy children 1-9 years of age who are seropositive for respiratory syncytial virus (RSV) and parainfluenza virus type 3 (PIV3) at screening.