“Finally!” Piper Sandler analysts cheered in a research note on Ardelyx Inc., which after spending three years battling the U.S. FDA, secured approval of Xphozah (tenapanor) for treating hyperphosphatemia in adults with chronic kidney disease (CKD). The company will waste no time getting to market, aiming to have the NHE3 inhibitor available to patients next month, marking the first new treatment class for hyperphosphatemia in 30 years.
Thanks to a raft of new approvals by Japan’s Ministry of Health, Labor and Welfare (MHLW), patients in Japan will soon have access to Biogen Inc./Eisai Co. Ltd.’s Leqembi (lecanemab), an amyloid-beta binder, for slowing progression of mild cognitive impairment and mild dementia due to Alzheimer's disease.
With a 9-4 vote, the U.S. FDA’s Cardiovascular and Renal Drugs Advisory Committee bucked FDA reviewers who delayed PDUFA dates, issued a complete response letter and two formal dispute resolution requests for Ardelyx Inc.’s tenapanor as a hyperphosphatemia therapy for adults on dialysis with chronic kidney disease (CKD).
Ardelyx Inc. could have a rocky row to hoe when it makes its case for tenapanor, as a hyperphosphatemia therapy in adults with chronic kidney disease, before the U.S. FDA’s Cardiovascular and Renal Drugs Advisory Committee Nov. 16. The big question facing the adcom is whether the change in baseline serum phosphorous levels achieved by the drug is clinically meaningful. Clearly, FDA reviewers don’t think so, as that question already has resulted in delayed PDUFA dates, a complete response letter and two formal dispute resolution requests.
