AstraZeneca PLC received a second complete response letter from FDA on the NDA for ZS-9 (sodium zirconium cyclosilicate) for the treatment of hyperkalaemia, a potential blockbuster drug it paid handsomely to acquire. The delay, announced by AstraZeneca March 17, will give rival Galenica Group’s Veltassa (patiromer) more time to dominate the hyperkalaemia market.
AstraZeneca’s ZS-9 Delay In US Gives Veltassa An Edge
FDA issued a second complete response letter to AstraZeneca’s NDA for ZS-9 for hyperkalaemia, a potential blockbuster that would compete against Vifor Pharma’s Veltassa.

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