Inclusion criteria:
age >18 years
The patient have written consciously and freely consent to participate in the study.
Confirmed diagnosis of COVID-19, with Laboratory (RT-PCR) confirmation.
Confirmed diagnosis of COVID-19, with lung CT-Scan result, which is typical for COVID-19 pulmonary involvement.
O2 saturation at rest in ambient air ≤93%
Exclusion criteria:
Concurrent treatment with other agents with actual or possible direct acting antiviral activity against SARS-CoV-2.
Participation in any other clinical trial of an experimental treatment for COVID-19
Pregnant or breastfeeding;
Hypersensitivity reaction history with Umifenovir.
patient with critical stage of disease (respiratory failure, sock, multi organ dysfunction)
patient with at least one of these disease as past medical history: congenital heart disease, Congestive heart failure, coronary artery disease, severe heart rhythm disorders, serious neurological disease including stroke, epilepsy, mental retardation, spinal cord injury.
Patients with immunodeficiency, including malignancies, HIV, organ transplants, receiving immunosuppressive drugs in the last previous 3 months.