This Phase II randomized, placebo-controlled, double-blind study will assess whether topical GLS-1200 applied via nasal spray atomizer is well-tolerated and can reduce the incidence of confirmed SARS-CoV-2 infection. Subjects will be randomized to either the GLS-1200 or placebo group in a 2:1 ratio with a target enrollment of 225 subjects. Subjects will self-administer study drug three times daily for 4 weeks.
