I heard that because of the patent expiration, it would not pay for them to invest money in trials. Is it possible to extend a patent?
Yea, you are right - I've heard that also but forgot when I asked the question. I do not know what all the rules are on extending patients but think it can include new dosage forms and new indications.
But my more generic question is to what extent does the Rituxan success make it easier to start attracting any drug development company.