KING OF PRUSSIA, Pa., July 6, 2020 /PRNewswire/ -- Global biotherapeutics leader CSL Behring today announced that the first patient has been enrolled in its Phase 2 study to assess the safety and efficacy of CSL312 (garadacimab, Factor XIIa antagonist monoclonal antibody) to treat patients suffering from severe respiratory distress, a leading cause of death in patients with COVID-19 related pneumonia.