Mylan’s Fulphila: First Neulasta Biosimilar’s Road To US Market Slowed Only By Product Quality, GMP Deficiencies

Mylan demonstrated analytical similarity, including for the PEG moiety, and the absence of clinically meaningful differences between MYL-1401H and Amgen’s pegfilgrastim during first review cycle, but it had to resubmit the application after FDA flagged concerns about the biosimilar’s manufacturing process and ongoing facility deficiencies.