Overview Antithrombin III in Infectious Disease Caused by COVID-19 Status: Recruiting Trial end date: 2021-12-19 Target enrollment: Participant gender: Summary The purpose of this research study is to see if participants who have SARS-CoV-2 and low levels of AT3 in the blood will benefit by being given AT3. Phase: Phase 2 Details Lead Sponsor: Enrique GinzburgCollaborator: Grifols Biologicals, LLCTreatments: Antithrombin IIIAntithrombins