Agency previously declined to approved tenapanor for the control of serum phosphorous levels in chronic kidney disease patients on dialysis, saying the magnitude of treatment effect on a surrogate endpoint in three clinical trials was less than that observed with approved drugs and of unclear significance.
The US Food and Drug Administration is asking an advisory committee whether Ardelyx Inc.’s Xphozah (tenapanor) results in a clinically meaningful reduction in serum phosphorous levels in the context of existing hyperphosphatemia treatments that were approved on the basis of the same surrogate endpoint.
A long-running disagreement between the FDA and Ardelyx over the clinical meaningfulness of the reduction in serum phosphorous (s-P) levels...
A real-world evidence study also does not meet the regulatory standard for an adequate and well-controlled clinical investigation, the agency said. The FDA should allow the accelerated approval drug to remain available like other treatments that failed their confirmatory trials, Intercept said.
Recent and upcoming US FDA advisory committee meetings and a summary of the topics covered.
New marketing authorization applications filed with the European Medicines Agency's human medicines committee (the CHMP) for review under the EU's centralized procedure. Updated monthly.
Proposal to have panelists rate the strength of efficacy and safety evidence on a numeric scale also draws support in written comments on ways to optimize the advisory committee process.
A real-world evidence study also does not meet the regulatory standard for an adequate and well-controlled clinical investigation, the agency said. The FDA should allow the accelerated approval drug to remain available like other treatments that failed their confirmatory trials, Intercept said.
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Recent and upcoming US FDA advisory committee meetings and a summary of the topics covered.
