Ardelyx Outlines Next Phase III Steps For Tenapanor, Ditches RDX7675

New Phase III study of tenapanor in hyperphosphatemia will include an active control arm for safety monitoring, per US FDA guidance, slightly lengthening timeline.

Yellow road sign with a blue sky and white clouds: clinical trial

Ardelyx Inc. plans to start a second Phase III study soon for its first-in-class NH3E inhibitor tenapanor in hyperphosphatemia, which will include an active control arm based on input from the US FDA. The company also announced during a Nov. 21 strategy update that it is canning development of its potassium binder RDX7675 in hyperkalemia.

Ardelyx's lead candidate tenapanor is a small molecule that's being developed for hyperphosphatemia, or high levels of serum phosphorous associated...

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