I1) Male or female patient aged 18 years or over, weighing >50 Kg and <120 Kg, at the time of signing the informed consent, I2) Patient presenting in a specialized or an emergency unit I3) Patient presenting signs of pneumonia evidenced by at least 1 of the following: auscultation, chest X-Ray, CT scan OR presenting COVID-19 related symptoms having started less than 10 days prior to screening visit, including at least 2 of the following: fever, cough, sore throat or nasal discharge, dyspnea (shortness of breath), thoracic pain, headache or fatigue, myalgia, anosmia, dysgeusia, diarrhea, nausea I4) Patient with SpO2 > 90% (at ambient air) I5) Patient with a first positive SARS-CoV-2 test (RT-PCR, RT-qPCR or antigen test) in the last 10 days or at screening I6) Women of childbearing potential (WOCBP) must have a negative urine pregnancy test at screening and use a highly effective1 birth control until 90 days after the administration of study drug I7) Non-vasectomized male patients having a female partner of childbearing potential must agree to use a highly effective method of contraception until 90 days after the administration of study drug, I8) Patient capable of giving signed informed consent.

I1) Male or female patient aged 18 years or over, weighing >50 Kg and <120 Kg, at the time of signing the informed consent, I2) Patient presenting in a specialized or an emergency unit I3) Patient presenting signs of pneumonia evidenced by at least 1 of the following: auscultation, chest X-Ray, CT scan OR presenting COVID-19 related symptoms having started less than 10 days prior to screening visit, including at least 2 of the following: fever, cough, sore throat or nasal discharge, dyspnea (shortness of breath), thoracic pain, headache or fatigue, myalgia, anosmia, dysgeusia, diarrhea, nausea I4) Patient with SpO2 > 90% (at ambient air) I5) Patient with a first positive SARS-CoV-2 test (RT-PCR, RT-qPCR or antigen test) in the last 10 days or at screening I6) Women of childbearing potential (WOCBP) must have a negative urine pregnancy test at screening and use a highly effective1 birth control until 90 days after the administration of study drug I7) Non-vasectomized male patients having a female partner of childbearing potential must agree to use a highly effective method of contraception until 90 days after the administration of study drug, I8) Patient capable of giving signed informed consent.