Current primary outcome measure as of 09/09/2020: The Clinical-Therapeutic response will be defined as the need for hospitalization; length of stay in hospital (days); need for oxygen support; length of need for oxygen support (days); and death measured using patient records collected between baseline and 21 days Previous primary outcome measure: The Clinical-Therapeutic response will be defined as the need for hospitalization; presence of thromboembolic complications; length of stay in hospital (days); need for use of mechanical ventilation; need for hemodialysis; major haemorrhagic complications; death measured using patient records throughout the study

Current primary outcome measure as of 09/09/2020: The Clinical-Therapeutic response will be defined as the need for hospitalization; length of stay in hospital (days); need for oxygen support; length of need for oxygen support (days); and death measured using patient records collected between baseline and 21 days Previous primary outcome measure: The Clinical-Therapeutic response will be defined as the need for hospitalization; presence of thromboembolic complications; length of stay in hospital (days); need for use of mechanical ventilation; need for hemodialysis; major haemorrhagic complications; death measured using patient records throughout the study