RecruitingPhase 2Biological interventionAnti-CD14 Treatment With IC14 in Hospitalized ARDS PatientsHospitalized patients with ARDS will be randomized to intravenous treatment with a monoclonal antibody against CD14, called IC14, or placebo. They will be followed for 28 days. The primary outcome is the day 4 oxygenation index assessed as a continuous measure.