InDex Pharmaceuticals today announced that it has been granted a patent by the United States Patent and Trademark Office. The patent provides additional protection for the use of Kappaproct® and additional DNA-based immunomodulatory sequences (DIMS) for the treatment of steroid-resistant inflammatory diseases including inflammatory bowel disease, rheumatoid arthritis, psoriasis, asthma, emphysema and chronic obstructive pulmonary disease.
The patent, entitled “Method for Modulating Responsiveness to Steroids” covers a method for enhancing steroid efficacy in steroid-refractory patients afflicted with an inflammatory condition using oligonucleotides with a specific common core sequence. It provides an exclusivity period until June 2027 with the possibility of a 3 to 5-year term extension after market approval. A corresponding European patent was granted in August 2009.
InDex Pharmaceuticals develops DIMS compounds that are synthetic oligonucleotides that function as immunomodulatory agents by targeting the Toll-like receptor 9 (TLR9). The company’s most advanced DIMS product candidate, Kappaproct, is currently in a phase III study in Europe for the treatment of chronic, active, treatment-refractory ulcerative colitis.