Sorry if I missed it posted here before but I was thinking a bit more behind another reason why VRTX is interested in monetizing the milestone payment is a less then healthy relationship with J&J.
The (other) collaboration J&J has for a protease inhibitor with Medivir seems to be progressing quite well. While Telaprevir may certainly have a head start TMC435 seems quite promising. If TMC435 doesn't encounter strong safety concern and continues to show very high potency from a competitive and economic standpoint wouldn't it make sense for J&J to promote it instead?
HCV program: IDX184 nucleotide polymerase inhibitor #msg-39719159Results of proof of concept monotherapy study #msg-39720566 Musings on the IDX184 data (Dew) #msg-39763035 Analysts’ comments on the IDX184 data #msg-36696042Nucleoside vs Nucleotide #msg-37925979 IDX184 bypasses first phosphorylation step (graphic) #msg-37926378 IDX184 bypasses first phosphorylation step (text) #msg-26915921 Checklist: How IDX184 is unlike NM283 #msg-36392616 Preclinical abstract from 2009 EASL conference
HCV program: IDX375 non-nucleoside polymerase inhibitor #msg-37246670 EASL 2009 press release #msg-37315636 EASL 2009 poster presentation #msg-31043481 2008 PR announcing the IDX375 program #msg-34334563 Blurb on IDX375 from hivandhepatitis.com
HCV program: IDX136/316 protease inhibitors #msg-37383732 Distinction between IDX136 and IDX316 #msg-37246670 EASL 2009 press release #msg-37315636 EASL 2009 poster presentation #msg-31043481 2008 PR announcing the PI program #msg-36600884 Musings on selectivity of HCV PI’s