NeurogesX Issued Japanese Patent for NGX-1998

NeurogesX, Inc. NGSX today announced the Japanese Patent Office (JPO) has issued patent No. 4931128 to NeurogesX for its next generation product candidate NGX-1998, a topically applied liquid formulation of prescription strength capsaicin designed to treat pain associated with neuropathic pain conditions. The patent, entitled "Methods and Compositions for Administration of TRPV1 Agonists," will remain in effect in Japan until 2024. The issued claims include formulation, system, and kit claims. Separately, the JPO has allowed NeurogesX patent application No. 2008-504395, entitled "Oils of Capsaicinoids and Methods of Making and Using the Same." The allowed claims relate to the composition and creation of capsaicinoid oils and oils for treating capsaicin-responsive conditions. The patent scheduled to issue from this application is expected to expire in 2026.