This is a multi-center, randomized, double-blind, placebo-controlled clinical trial to
evaluate a 21-herb formula named modified Qing Fei Pai Du Tang (mQFPD) to treat
COVID-19-positive outpatients with mild-to-moderate symptoms assigned to self-quarantined and
home management. This the study aims to establish the safety and feasibility of the use of
mQFPD vs placebo in 66 total subjects. Subsequent trials will evaluate other therapeutics as
well as the efficacy of mQFPD in a larger study population.