Part 3 of our series on Gems from the Poster Halls at ESMO continues with a look at another four important combination studies that may be of keen interest to readers.
These include both targeted therapies as well as immunotherapies.
Some of the posters I was originally keen to write about turned out a little unexpectedly with some issues to address i.e. lack of efficacy or unwanted toxicities based on the dosing schedule used and may require tweaking of the dosing, schedule or trial design. Others will unfortunately be destined for dog drug heaven unless a new tumour type offers more promise. Such is the R&D roller coaster that is oncology – sometimes we forget that more compounds fail than make it market.
The good news is that there were plenty of promising approaches that are worthy of writing up and discussing. In the third part of our poster mini-series, we take another deeper dive with a careful look at some new data in Copenhagen.
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At the last count, the renal cell carcinoma (RCC) space is quite competitive with five VEGF inhibitors (sunitinib, sorafenib, axitinib, pazopanib and bevacizumab), two mTOR blockers (temsirolimus and everolimus) and not forgetting IL–2, all approved by the FDA for the treatment of advanced disease.
Much of the recent focus has been on sequencing, exploring combinations (generally too toxic with little added benefit), and evaluating the potential for novel immunotherapies in development such as checkpoint inhibitors. Biomarkers are few and far between, making it hard to rationally decide which therapy each patient should get and in which sequence.
The key question is, why is this tumour type so challenging from a clinical and scientific perspective?
Recently, new data has begun to emerge that may help inform or enable us to switch to new approaches. While the urologists are eagerly watching the live surgery on the EAU cam, we highlight research data presented at the European Association of Urology (EAU) in Madrid and take a look at how the underlying biology of RCC can elevate our knowledge about where the potential future strategies and blueprint might lie, if we want to facilitate exciting new developments in this field.
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