>Because there are already 3 approved AAT drugs for IV use in the market but none for use by Inhalation.<
OK—that makes sense. I know of plasma-derived AAT products from Talecris (#msg-11829819) and Purely Proteins (#msg-6488263). Who is the third vendor? T.i.a.
“The efficient-market hypothesis may be the foremost piece of B.S. ever promulgated in any area of human knowledge!”