Study: NCT04842435

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: COVID-globulin
Description: In a Stage 1 study, COVID globulin is administered to clinical study subjects randomized to groups 1, 2, or 3 by intravenous drip in one of three doses of 1 mL/kg, 2 mL/kg, or 4 mL/kg The initial drug administration rate is from 0.01 mL/kg to 0.02 mL/kg of body weight per minute for 30 minutes. If the drug is well tolerated, the rate of administration can be gradually increased to a maximum of 0.12 mL/kg of body weight per minute. In order to control the drug administration rate, infusion shall be performed with an infusion pump.~In a Stage 2 study, COVID globulin is administered to clinical study subjects randomized to group 1 by intravenous drip at a dose found optimal based on the results of Stage 1 study.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: COVID-globulin
Description: In a Stage 1 study, COVID globulin is administered to clinical study subjects randomized to groups 1, 2, or 3 by intravenous drip in one of three doses of 1 mL/kg, 2 mL/kg, or 4 mL/kg The initial drug administration rate is from 0.01 mL/kg to 0.02 mL/kg of body weight per minute for 30 minutes. If the drug is well tolerated, the rate of administration can be gradually increased to a maximum of 0.12 mL/kg of body weight per minute. In order to control the drug administration rate, infusion shall be performed with an infusion pump.~In a Stage 2 study, COVID globulin is administered to clinical study subjects randomized to group 1 by intravenous drip at a dose found optimal based on the results of Stage 1 study.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: COVID-globulin
Description: In a Stage 1 study, COVID globulin is administered to clinical study subjects randomized to groups 1, 2, or 3 by intravenous drip in one of three doses of 1 mL/kg, 2 mL/kg, or 4 mL/kg The initial drug administration rate is from 0.01 mL/kg to 0.02 mL/kg of body weight per minute for 30 minutes. If the drug is well tolerated, the rate of administration can be gradually increased to a maximum of 0.12 mL/kg of body weight per minute. In order to control the drug administration rate, infusion shall be performed with an infusion pump.~In a Stage 2 study, COVID globulin is administered to clinical study subjects randomized to group 1 by intravenous drip at a dose found optimal based on the results of Stage 1 study.

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: COVID-globulin
Description: In a Stage 1 study, COVID globulin is administered to clinical study subjects randomized to groups 1, 2, or 3 by intravenous drip in one of three doses of 1 mL/kg, 2 mL/kg, or 4 mL/kg The initial drug administration rate is from 0.01 mL/kg to 0.02 mL/kg of body weight per minute for 30 minutes. If the drug is well tolerated, the rate of administration can be gradually increased to a maximum of 0.12 mL/kg of body weight per minute. In order to control the drug administration rate, infusion shall be performed with an infusion pump.~In a Stage 2 study, COVID globulin is administered to clinical study subjects randomized to group 1 by intravenous drip at a dose found optimal based on the results of Stage 1 study.

Intervention type: DRUG
Group type: PLACEBO_COMPARATOR
Intervention: Placebo
Description: In a Stage 1 study, Placebo is administered to clinical study subjects randomized to groups 4 by intravenous drip at a dose of 1 mL/kg.~The initial drug administration rate is from 0.01 mL/kg to 0.02 mL/kg of body weight per minute for 30 minutes. If the drug is well tolerated, the rate of administration can be gradually increased to a maximum of 0.12 mL/kg of body weight per minute. In order to control the drug administration rate, infusion shall be performed with an infusion pump.~In a Stage 2 study, placebo is administered to clinical study subjects randomized to group 2 by intravenous drip at a dose equal to the study drug dose.