WASHINGTON, Dec. 15, 2025 /PRNewswire/ -- Vanda Pharmaceuticals Inc. (Vanda) (Nasdaq: VNDA) today announced the submission of a Biologics License Application (BLA) to the U.S. Food and Drug Administration (FDA) for imsidolimab, a novel IgG4 IL-36 receptor antagonist, to treat generalized pustular psoriasis (GPP). Imsidolimab inhibits IL-36 receptor signaling, addressing the deficiency in the endogenous IL-36RA regulator commonly seen in GPP patients due to IL36RN gene mutations. GPP is a rare, chronic, life ...