In early May 2026, Ardelyx presented a new long-term analysis at the National Kidney Foundation meetings showing that XPHOZAH (tenapanor) reduced serum phosphate in chronic kidney disease patients on dialysis without clinically meaningful changes in other electrolytes, nutrition markers, body mass, or blood pressure, reinforcing its safety profile as an add-on therapy. The extended NORMALIZE and OPTIMIZE data, together with Ardelyx’s peer exchange on XPHOZAH’s first-in-class mechanism,...