GTC Biotherapeutics (fka GTCB)

[gym gravity]

It ocurred to me that GTCB must be drowning in ATryn. A few goats milked once or twice a day for 5 years could make how much drug? Some questions about how things are done...

Is ATryn (or any other protein) more stable when frozen as milk, pure product, or some intermediate filtrate/centrifugate? Once it is pure product, isn't it stamped with an expiration? I can see advantages for transgenic production for scale up, but when the freezers are full, are lactating females kept lactating and product discarded?