It’s time to answer some more subscriber questions. Several readers wrote in and asked about the anti-PD1 checkpoint data that was presented at the recent American Society of Hematology (ASH) meeting in classic Hodgkin’s lymphoma (cHL):
What did we think of it?
Well, for starters it was one of our highlights of the ASH 2014 conference (see quick write-up, open access), with an impressive 87% response rate for nivolumab in refractory cHL. Many of these patients had failed both autologous stem cell transplant and brentuximab (Adcetris), for which FDA granted breakthrough therapy designation.
Overall, I agreed with Ron Levy (Stanford) when he noted in the packed Special Session on Checkpoint inhibitors in Hematology that there were only 4 or 5 abstracts to actually discuss (he didn’t spend much time on the preliminary data) and that the results are still very early without seeing how good the durability will be.
As he observed in the session, which was standing room only, figuring out how best to integrate these new agents into clinical practice with other successful approaches will be most interesting.
That said, there are some new data that have emerged since ASH that are worthy of discussion in terms of potential future directions and how they could impact the checkpoint landscape in both hematologic malignancies and even solid tumours.
This is part of our ongoing immuno-oncology series on how we can manipulate T cells in creative ways to kill the cancer cells. The findings discussed in this article are completely new and have not been discussed here before.