Xeligekimab: First Approval.

Xeligekimab (Jinlixi) is a recombinant human interleukin (IL)-17A-neutralizing immunoglobulin (Ig)G4 monoclonal antibody being developed by Genrix (Shanghai) Biopharmaceutical for the treatment of plaque psoriasis, axial spondyloarthritis and lupus nephritis. Xeligekimab binds to IL-17A and blocks its interaction with the IL-17A receptor, thereby inhibiting the release of C-X-C motif chemokine ligand 1 and IL-6. On 27 August 2024, xeligekimab received approval in China for the treatment of adult patients with moderate to severe plaque psoriasis who are candidates for systemic therapy or phototherapy. Xeligekimab is under regulatory review in China for the treatment of axial spondyloarthritis and is undergoing phase II development for the treatment of lupus nephritis. This article summarizes the milestones in the development of xeligekimab leading to this first approval for plaque psoriasis.