Upstream Bio to Present Additional Analyses from Phase 2 VIBRANT Trial in Chronic Rhinosinusitis with Nasal Polyps in Late-Breaking Session at AAAAI Annual Meeting 2026

– New analyses of efficacy endpoints from the Phase 2 VIBRANT trial of verekitug in CRSwNP to be presented during the late-breaking poster session – WALTHAM, Mass., Feb. 26, 2026 (GLOBE NEWSWIRE) -- Upstream Bio, Inc. (Nasdaq: UPB), a clinical-stage company developing treatments for inflammatory diseases, with an initial focus on severe respiratory disorders, today announced an upcoming late-breaking poster session at the American Academy of Allergy, Asthma and Immunology (AAAAI) Congress 2026 in Philadelph ...