Company News: Kappaproct Drastically Reduces the Need for Colectomy in Patients with Severe Ulcerative Colitis

– InDex Pharmaceuticals reports positive clinical data in peer-reviewed journal Inflammatory Bowel Diseases

InDex Pharmaceuticals today announced the publication of positive data from the Company’s compassionate use program with its lead compound Kappaproct. In the program, eight treatment-refractory ulcerative colitis (UC) patients that had been elected for colectomy received Kappaproct, a DNA-based immunomodulatory sequence (DIMS) targeting the toll-like receptor 9 (TLR9).

The findings showed that Kappaproct induced a pronounced and rapid reduction in the colitis activity index for all treated patients within 1 week following a single intracolonic administration. Further improvements were evident at week 4, resulting in a clinical response rate after a single-dose treatment with Kappaproct of 71%, with 43% in clinical remission. By week 12, the clinical response and remission rates had reached 82% and 71%, respectively. A follow-up period of over 2 years post treatment indicated that all but one of the treated patients had avoided the need for colectomy, with the longest patient being in symptom-free remission for over 27 months.

The article “Topical Treatment with the Toll-like Receptor Agonist DIMS0150 Has Potential for Lasting Relief of Symptoms in Patients with Chronic Active Ulcerative Colitis by Restoring Glucocorticoid Sensitivity”, was published in the journal Inflammatory Bowel Diseases (DOI 10.1002/ibd.23019).

Kappaproct is currently in a European multicenter phase III trial called COLLECT (NCT01493960) for the treatment of chronic active UC patients not responding to available therapy. Results are expected for Q1 2014.