Biogen's Aducanumab Advisory Committee Will Test US FDA's 'Substantial Evidence' Flexibility
Given inconsistent study results, robustness of the efficacy evidence is expected to be key focus of the 6 November meeting of the Peripheral and Central Nervous System Drugs Advisory Committee; review could put a December 2019 guidance on the ‘substantial evidence’ standard to the test and offer insight into the amount of flexibility the agency is willing to exercise for neurodegenerative diseases with high unmet need.
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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.
Biogen’s Aducanumab: One Positive Phase III Trial Is Good Enough For Demonstrating Efficacy, US FDA Says
Negative results from the Phase III ENGAGE trial – which may have been influenced by imbalance in ‘rapid progressors’ and differential effects of dosing protocol changes – do not negate persuasiveness of positive results from the EMERGE study, agency says in advisory committee briefing document; statistical reviewers dissent, call for a new trial of the Alzheimer's drug.
Recent and upcoming US FDA advisory committee meetings and a summary of topics covered.