The U.S. FDA has become the first global regulator to approve Boehringer Ingelheim GmbH’s spesolimab, the first treatment specifically approved for generalized pustular psoriasis flares in adults, a rare and potentially fatal disease. Branded as Spevigo, it works by inhibiting interleukin-36 and is delivered via intravenous injection. Ingelheim, Germany-based Boehringer Ingelheim is not giving away details about pricing but Carinne Brouillon, a member of the company’s board responsible for human pharma, said Spevigo is “priced similarly to the other biologic therapies used to treat rare dermatologic diseases.”