MNTA: Perhaps the FDA has not completed their review of each respective application for Teva/Amphastar. Regardless, immunogenicity will be a concern for both of those companies. MNTA received a "not approvable" letter because the FDA didn't want (apparently) to reject the app outright; additionally, an "approvable letter" mechanism isn't in place for ANDA's.
"Illegitimacy is something we should talk about in terms of not having it."