One of the things that I’ve heard repeatedly over the last year is that many researchers want a better biomarker of response for checkpoint therapies than PD-L1 expression by IHC.
Indeed, we could expand that statement more broadly to say that there’s a real need for a better predictive biomarker of response to any immunotherapy, since there are more approaches out there now and not just checkpoint blockade. Plus combinations are evolving, complicating things further.
Fair enough, but what’s happening in this space? Anything, Bueller?
We’ve covered a few emerging ideas in the past, although they were based on retrospective analysis – usually with a small N – and remain to be validated in prospective clinical trials.
There’s quite a few groups now much more active in research in this space, from academia to industry. This is a good time to take stock and look at some of the emerging technologies that might be making a splash later if the data pans out.