PFE begins phase-1 study of Herceptin FoB: http://clinicaltrials.gov/ct2/show/NCT01603264?term=NCT01603264 This makes two big-selling drugs for which PFE is known to be working on an in-house FoB: Herceptin and Rituxan (#msg-72865371). (Thanks to Duncan Emerton, a/k/a Biosimilarz, for the Herceptin FoB find.)