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Overcoming resistance and RevMed’s next drug?
In case you missed it, Revolution Medicines’ sessions yesterday were jam-packed with conference attendees. While most of the media coverage focused on the daraxonrasib in frontline pancreatic cancer data, the company also revealed some activity in a new compound, RM-055. CEO Mark Goldsmith described it as being part of a new class of “catalytic inhibitors,” since it can slice off a phosphate from GTP-RAS, or the “on” form of RAS, and turn the protein off.
This generated a lot of interest because one of the main ways that cancer develops resistance to RAS inhibitors is by amplifying mutant RAS, basically flooding the cell with the oncoprotein and overwhelming the inhibitor. RM-055, with its catalytic ability to turn multiple mutant RAS proteins off, may be the next step in the arms race against RAS-addicted cancer.
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