Nadia Harbeck, MD, PhD
EP2006 (Zarxio; biosimilar filgrastim-sndz), a filgrastim (Neupogen) biosimilar, produced safety results equivalent to those observed with referent filgrastim in a combined analysis of 2 phase III breast cancer studies from the United States and Europe.
Mean duration of severe neutropenia (primary endpoint) was 1.04 (±1.51) days in cycle 1. The mean absolute neutrophil count (ANC) time course showed the expected increase at day 3 and subsequent decrease with nadir at days 7 to 8, with recovery from day 10.
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