FDA Rejects Coherus Bio’s Proposed Neulasta Biosimilar
FDA has issued Coherus BioSciences a complete response letter on its BLA for a biosimilar copy of Amgen’s Neulasta (pegfilgrastim), indicated for reducing the duration of neutropenia (low count of neutrophils, a type of white blood cells) and the incidence of fever associated with neutropenia in adult patients treated with chemotherapy in certain types of cancer.
The agency letter requested a “reanalysis of a subset of subject samples with a revised immunogenicity assay,” and certain additional manufacturing related process information, according to Coherus. It did not request any clinical studies to be performed in oncology patients, it says, adding that the letter did not indicate additional process qualification lots would be required or raise concerns over the GMP status of the bulk manufacturing and fill-finish vendors.