A randomized, double-blind, placebo-controlled, parallel clinical trial to determine the safety and efficacy of inhaled AQ001S in the management of acute COVID-19 symptoms in adult patients (≥ 18 years old) who are admitted to hospital due to the severity of his/her confirmed or suspected COVID-19 disease. The patient will be treated for 28 days.
Double-blind parallel trial to assess the efficacy and safety of inhaled AQ001S in the management of acute COVID-19 symptoms compared.