Biosimilar Sponsors Say Pharmacokinetic Bridging Studies Should Be The Exception, Not The Norm

US FDA guidance runs risk of creating de facto requirement for bridging studies when a biosimilar applicant seeks to use comparative data involving a foreign reference product, Novartis says; IGBA, AAM urge agency adopt a ‘global comparator’ approach that would eliminate the need for clinical bridging studies between US and foreign reference biologics.

shutterstock: R Munasinghe

Biosimilar sponsors are urging the US FDA to rewrite part of a final guidance that, they say, creates a de facto requirement for pharmacokinetic bridging studies when a 351(k) applicant seeks to rely on comparative data from a foreign reference product.

In comments to the agency, Novartis AG and its Sandoz Inc. division, and the International Generic and Biosimilar...

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