Sandoz Makes First Biosimilar Review Look Easy; Will Future Sponsors Be As Lucky?
Oncologic Drugs Advisory Committee’s unanimous endorsement of Neupogen biosimilar amounted to a slam dunk, but other sponsors with more complex biologics and less foreign marketing experience may face greater skepticism from FDA and its experts.
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FDA clinical reviewers moved from traditional “new drug” review mode to determining the evidence needed to demonstrate a follow-on product is highly similar to the reference biologic, Sandoz exec says, describing firm’s interactions with FDA on its filgrastim 351(k) application.
Lengthy withdrawal process creates an opening for the FDA to better convey its concerns about a medicine’s benefit-risk profile in a way that impacts prescribing guidelines, Johns Hopkins’ Joshua Sharfstein says; CDER’s Jacqueline Corrigan-Curay says new expedited withdrawal procedures under omnibus law appear more ‘streamlined’ than those followed for Makena.
Having a confirmatory trial underway at the time of approval should be the ‘default expectation’ and the agency should publicly explain when and why it grants exceptions to this rule, experts said at a National Academies meeting on accelerated approval.