BOSTON, Jun 24, 2015 (GLOBE NEWSWIRE via COMTEX) -- Keryx Biopharmaceuticals, Inc. KERX, +0.63% a biopharmaceutical company focused on bringing innovative therapies to market for people with renal disease, today announced that two national insurance providers have added Auryxia™ to their Medicare Part D formularies. Auryxia is the first and only absorbable, iron-based phosphate binder for the treatment of elevated serum phosphorus levels in people with chronic kidney disease on dialysis. Together, these new formularies will increase unrestricted access to Auryxia, across Medicare Part D and commercial insurance providers, to approximately 65 percent of people in the U.S. currently taking phosphate binders.