Jade Biosciences Announces First Participant Dosed in First-in-Human Phase 1 Clinical Trial of JADE201, a Novel Half-Life Extended Afucosylated Anti-BAFF Receptor Monoclonal Antibody

Interim Phase 1 data in rheumatoid arthritis expected in 2027 are anticipated to inform indication prioritization across multiple potential autoimmune indications supported by BAFF-R biology JADE201 preclinical data demonstrated dose-dependent BAFF-R occupancy, an extended half-life, and sustained B cell depletion in non-human primates SAN FRANCISCO and VANCOUVER, British Columbia, May 26, 2026 (GLOBE NEWSWIRE) -- Jade Biosciences, Inc.