CymaBay Therapeutics, Inc. announced encouraging seladelpar data in patients with primary biliary cholangitis (PBC) that are being presented at The International Liver Congress™ 2022 of the European Association for the Study of Liver (EASL) which will be held in London, UK from June 22nd – 26th. In a poster presentation titled, “Seladelpar Treatment of Patients With Primary Biliary Cholangitis (PBC) For 2 Years Improves the GLOBE PBC Score and Predicts Improved Transplant-Free Survival,”1 Bettina Hansen, PhD, Associate Professor Toronto Centre for Liver Disease, University of Toronto, will be reporting the improvement in GLOBE score following seladelpar treatment over two years and predicted transplant-free survival. The GLOBE score is a validated risk-assessment tool providing an estimate of transplant-free survival for patients with PBC.

Patients with PBC having an incomplete response or intolerance to UDCA (defined as alkaline phosphatase (ALP) = 1.67xULN) had completed an open-label one-year phase 2 study of daily oral seladelpar therapy (NCT: 02955602). After 1 year, patients were eligible for an open label long-term study (NCT: 03301506). Treatment of 50 patients with oral seladelpar 5 mg or 10 mg daily for 2 years resulted in a mean (SD) change from baseline in GLOBE score of -0.417 (0.269), resulting in a corresponding hazard ratio of 0.66 for transplantation or death compared to no prior treatment with seladelpar (baseline).

The improvement in GLOBE score and predicted survival did not depend on age. However, an analysis of subpopulations of high risk patients by GLOBE score (> 0.3) revealed that while patients of all ages improved, the younger patients tended to have numerically greater improvements, although these differences did not achieve significance.