Biogen’s Aducanumab: Why Accelerated Approval Might, And Might Not, Be An Option For US FDA
Use of expedited pathway based on drug’s effect on brain amyloid would be problematic given advisory committee’s views of a disconnect between biomarker data and clinical efficacy results; however, one FDA expert sees potential for agency to grant accelerated approval on basis of an intermediate clinical endpoint – the same endpoint on which Biogen seeks regular approval.
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A look at drugs the agency approved despite an advisory committee vote not to do so and how they compare to Biogen’s Alzheimer’s disease drug aducanumab.
Use of exploratory methods to understand as much as possible from the two Alzheimer’s disease drug trials that were terminated early for futility is the same type of ‘innovative thinking’ that will be needed to salvage information from neuroscience trials interrupted by the COVID-19, US FDA Office of Neuroscience director Billy Dunn says.
Successful EMERGE trial does not provide substantial evidence of efficacy in Alzheimer’s because it cannot be divorced from its unsuccessful sister study, advisory committee says; panel’s unequivocal rejection leaves agency’s Office of Neuroscience in a tight spot given its strong support for the drug and the help it gave Biogen to get this far.