In our post AACR analysis, I noticed some consistent observations across multiple talks and informal discussions with thought leaders.
Some of these ideas are pretty important and help us see the big picture for the near and medium term future in the cancer immunotherapy space.
The “Claws” sign we saw at the University of New Orleans sums things up!
Without much ado, it seems a good point to capture and summarise these ideas so that readers can compare notes and debate their thoughts too.
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Over the last couple of years we have heard much about targeting various checkpoints that exert an inhibitory effect on the immune system and the T cells, in particular. The main targets where we have a growing body of evidence to date are CTLA-4, PD-1 and PD-L1, but there are others including LAG-3, TIM-3, ICOS etc.
Earlier this year at AACR, we saw new evidence that combining two checkpoints (anti-CTLA4 and anti-PD1) was superior to monotherapy in metastatic melanoma, albeit with a concomitant increase in toxicities.
What about the other inhibitory signals though? Are they bystanders, much like passenger mutations that have little effect, or do they matter, at least in some tumor types? If so, which ones?
We took a look at some of the emerging data associated with targeting TIM-3 – the results may well surprise some observers.
New Orleans – At the 2015 annual meeting of the American Association of Immunologists (AAI) leading experts came together to share their insights on the “Promise of Cancer Immunotherapy.”
The audience at #AAI2015, in an artic chilled hall, heard from an outstanding panel of speakers, many of whom flew in specially:
- Immunologic Checkpoint Blockade: Combinations and Mechanisms, Jedd Wolchok (MSKCC)
- Immune Checkpoint Therapy: Clinical Success and Next Steps, Padmanee Sharma (MD Anderson)
- Improving Cancer Treatment Through Immunotherapy Combinations: Combination MAb Therapy: Dual tumor & Immune Targeting, Holbrook Kohrt (Stanford Cancer Institute)
- Curative Potential of T-Cell Transfer Immunotherapy for Cancer, Steven Rosenberg (Surgery Branch, NCI)
- PD-1 pathway blockade in cancer therapy: new frontiers, Suzanne Topalian (Johns Hopkins)
Dr Steven Rosenberg (NCI)
Cancer Immunotherapy is such a fast-evolving field that at Immunology 2015, we heard data that wasn’t at the annual meeting of the American Association for Cancer Research (AACR), just a few weeks ago.
Several presenters also put in context data that will published at the forthcoming ASCO annual meeting.
If you’d like to hear more about some of the checkpoint inhibitor data at AACR15, do listen to the first episode of the Novel Targets podcast (if you haven’t already done so).
It’s available as a free download on SoundCloud and on iTunes.
This post offers a top-line summary of some of the key messages we heard in the #AAI2015 symposium.
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