Aducanumab Accelerated Approval Reflects US FDA Flexibility But Raises Doubts About Confirmatory Trial
Biogen/Eisai Alzheimer’s drug wins agency nod on basis of amyloid plaque reduction, a surprising use of the accelerated approval pathway that was not considered by an FDA advisory committee; approval raises feasibility questions about confirmatory trial and daunting prospect of market withdrawal if studies fail to verify clinical benefit.
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Commissioner Robert Califf’s comments offer further context for FDA’s unprecedented decision to reconvene an advisory committee for a second review of Amylyx’ AMX0035 for ALS.
Without directly referencing the agency’s controversial approval of Biogen’s Alzheimer’s drug Aduhelm, CDER director Patrizia Cavazzoni defended US FDA’s ability to decide on use of the expedited pathway during an application review, while also stressing the need for earlier planning on evidence generation and confirmatory trials.
Aduhelm, One Year Later: US FDA’s Credibility, Accelerated Approval Pathway Feel The Bite From Alzheimer’s Drug Approval
June 7 marks the one-year anniversary of the accelerated approval of Biogen’s aducanumab, an event that still reverberates throughout the drug development community. While the FDA continues to defend the approval, experts say the backlash has caused the agency to become more reluctant to use the expedited pathway. Meanwhile, Alzheimer’s patients find themselves where they were a year ago: without ready access to a disease-modifying therapy.