After lining up a couple of big biopharma collaborations with large upfront payments in 2017, CytomX $CTMX is getting this year started by bidding one of its first Big Pharma partners so long. The South San Francisco-based biotech says that Pfizer $PFE notified them yesterday that they are dropping out of the Probody deal, discarding … Continue reading Pfizer breaks off a 5-year, $635M collaboration deal with CytomX, with nothing to show for it