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ABSTRACT
On March 6th 2015, the Food and Drug Administration (FDA) approved filgrastim-sndz (Zarxio) as the first biosimilar in the United States (US) for all indications of the reference product. Filgrastim-sndz is a biosimilar of Amgen’s Neupogen and is mainly used to treat neutropenia in cancer patients receiving chemotherapy. This article presents a summary of the analytical and clinical studies submitted by Sandoz and describes how the information was integrated to provide the ‘totality of the evidence’ leading to the approval of the biosimilar.
Declaration of interest
J Holzmann and J Windisch are employees of Sandoz and S Balser is an employee of Hexal AG. The work was sponsored by Sandoz. The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.