Palisade Bio Granted Canadian Patent Covering Composition of Lead Product Candidate PALI-2108

Core Insights - Palisade Bio has developed PALI-2108, a first-in-class PDE4 inhibitor specifically targeting the terminal ileum and colon for treating fibrostenotic Crohn's disease (FSCD) and ulcerative colitis (UC) to meet significant unmet medical needs [1][4] Intellectual Property - The Canadian Intellectual Property Office has granted patent number 3,174,137 for PALI-2108, providing composition-of-matter protection until May 28, 2041 [2] - The patent covers the unique design of PALI-2108, which includes a galactose-derived sugar moiety that minimizes absorption until activated by colonic bacteria [2] Clinical Development - Palisade Bio is advancing PALI-2108 in a Phase 1b study for FSCD, with patient dosing expected to start in the second half of 2025 and topline data anticipated in the first quarter of 2026 [3] - Results from the Phase 1b study, along with data from completed Phase 1a/1b trials in UC, will support a planned Phase 2 IND submission to the FDA in the first half of 2026 [3] Product Overview - PALI-2108 is an orally administered prodrug designed for gut-restricted delivery, achieving high local tissue concentrations while minimizing systemic exposure [4] - The mechanism of action aims to maximize anti-inflammatory and anti-fibrotic effects while reducing common tolerability issues associated with systemic PDE4 inhibitors [4] Company Background - Palisade Bio is a clinical-stage biopharmaceutical company focused on developing novel therapeutics for autoimmune, inflammatory, and fibrotic diseases [5]