Sometimes initial phase 1/1b readouts at cancer conferences produce quite different reactions from a live and remote audience while at other meetings, the Developmental Therapeutics talks produce little or no interest at all. It’s often hard to guage which way they will go.

At SITC this weekend, several talks generated some contentious, and at times quite heated, debate and intense interest.

One of these was an oral presentation by Dr Zev Wainberg on the first-in-man data with the anti-CSF1R and anti-PD1 inhibitors, cabiralizumab and nivolumab, from Five Prime and BMS respectively, in an advanced pancreatic cohort.

Dr Zev Wainberg at SITC 2017

There was a surprising amount of confusion surrounding the initial results and other issues last week, with Five Prime’s stock dropping before we’d even got to Dr Wainberg’s talk.

What became increasingly obvious over the weekend was a clear difference in investors perceptions versus what the scientific community actually thought.

Here we take a look at the data and explain what to watch out for and why…

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