Abstract
We report the first documented use of brodalumab, an IL-17 receptor antagonist, for treating severe linear localized scleroderma refractory to conventional therapies, including methotrexate, mycophenolate mofetil and corticosteroids. The patient demonstrated rapid and sustained improvement in disease activity and severity, highlighting the potential role of IL-17 signaling in the pathogenesis of localized scleroderma. This case supports further investigation of IL-17 pathway blockade in autoimmune fibrotic diseases.