Incyte CorporationPositive Phase 1/2 data showing 81% median bleed reduction and safety for latarcibart in von Willebrand disease

Incyte announced complete safety and efficacy data from the Phase 1/2 multidose study of its investigational monoclonal antibody VGA039, or latarcibart, showing an 81% median reduction in annualized bleeding rate across all bleeding categories and patient types with von Willebrand disease. The data, presented at the ISTH 2026 Congress, included all 16 enrolled patients who completed six once-monthly subcutaneous doses. In patients switching from prior intravenous prophylaxis, bleed reductions ranged from 75% to 100%, while among those not previously on prophylaxis with historical annualized bleeding rates above 12, reductions ranged from 46% to 100%, with nearly all achieving reductions greater than 73%. Latarcibart was safe and well tolerated, with three related treatment-emergent adverse events reported: two Grade 2 headaches and one Grade 1 injection site reaction. The pivotal Phase 3 VIVID-6 trial evaluating latarcibart as a potential first targeted therapy for von Willebrand disease is currently enrolling.
Incyte CorporationPositive Phase 1/2 data showing 81% median bleed reduction and safety for latarcibart in von Willebrand disease