XORTX Announces Planned FDA IND Submission for XRx-026 Gout Program Using XORLO™, Targeting USD$700M+ U.S. Gout Market Opportunity

CALGARY, Alberta, Sept. 18, 2026 (GLOBE NEWSWIRE) -- XORTX Therapeutics Inc. (“XORTX” or the “Company”) (NASDAQ: XRTX), a late-stage clinical pharmaceutical company focused on developing innovative therapies to treat gout and progressive kidney disease, outlines its anticipated Investigational New Drug application (“IND”) submission to the U.S. Food and Drug Administration (the “FDA”) for the XRx-026 gout program. XORTX’s drug development plan is to seek FDA marketing approval for XRx-026 and provide patients with a new therapeutic option. The key steps the Company anticipates will be necessary to file a marketing application with the FDA include meetings with the agency, a two-part clinical study to characterize the pharmacokinetics and efficacy of the XORLO^™ formulation of oxypurinol, and manufacture of a commercial supply of XORLO^™ for the first year of marketing.