Study: NCT04346693

Intervention type: PROCEDURE
Group type: ACTIVE_COMPARATOR
Intervention: Standard therapy recommended by the Ministry of Health of the Russian Federation.
Description: Hydroxychloroquine + azithromycin + / - tocilizumab. Hydroxychloroquine intake is conducted according to the following schedule: 400 mg twice per day for 1-2 days of the treatment and 200 mg twice per day during six days of the treatment course.~For the tocilizumab, 400 mg intravenously drip slowly (for at least 1 hour), with insufficient effect, administration is repeated the after 12 hours. Simultaneously no more than 800 mg of tocilizumab could be administered.~For the azithromycin admission 500mg on day 1 is prescribed followed by 250mg per day, the next four days

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Standard therapy recommended by the Ministry of Health of the Russian Federation and Leitragin intramuscular injection
Description: Hydroxychloroquine + azithromycin + / - tocilizumab. Hydroxychloroquine intake is conducted according to the following schedule: 400 mg twice per day for 1-2 days of the treatment and 200 mg twice per day during six days of the treatment course.~For the tocilizumab, 400 mg intravenously drip slowly (for at least 1 hour), with insufficient effect, administration is repeated the after 12 hours. Simultaneously no more than 800 mg of tocilizumab could be administered.~For the azithromycin admission 500mg on day 1 is prescribed followed by 250mg per day, the next four days.~Additional intramuscular injection of the drug Dalargin (solution for intravenous and intramuscular doses) under dosage of 1 mg daily once per day for 10 days

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Standard therapy recommended by the Ministry of Health of the Russian Federation and Leitragin inhalation
Description: Hydroxychloroquine + azithromycin + / - tocilizumab. Hydroxychloroquine intake is conducted according to the following schedule: 400 mg twice per day for 1-2 days of the treatment and 200 mg twice per day during six days of the treatment course.~For the tocilizumab, 400 mg intravenously drip slowly (for at least 1 hour), with insufficient effect, administration is repeated the after 12 hours. Simultaneously no more than 800 mg of tocilizumab could be administered.~For the azithromycin admission 500mg on day 1 is prescribed followed by 250mg per day, the next four days.~Additional inhalation of the drug Leitragin, at a dose of 10 mg daily once per day until the symptoms of pulmonary complications will be ceased.

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Standard therapy recommended by the Ministry of Health of the Russian Federation and Leitragin intramuscular injection combined with Leitragin inhalation
Description: Hydroxychloroquine + azithromycin + / - tocilizumab. Hydroxychloroquine intake is conducted according to the following schedule: 400 mg twice per day for 1-2 days of the treatment and 200 mg twice per day during six days of the treatment course.~For the tocilizumab, 400 mg intravenously drip slowly (for at least 1 hour), with insufficient effect, administration is repeated the after 12 hours. Simultaneously no more than 800 mg of tocilizumab could be administered.~For the azithromycin admission 500mg on day 1 is prescribed followed by 250mg per day, the next four days.~Additional inhalation of the drug Leitragin, at a dose of 10 mg daily once per day until the symptoms of pulmonary complications will be ceased.~Additional intramuscular injection of the drug Dalargin (solution for intravenous and intramuscular doses) under dosage of 1 mg daily once per day for 10 days