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Cancer's 'Undruggable' Switch Finally Flipped
13 Jun
Summary
- New drug daraxonrasib targets the KRAS mutation, a challenge for decades.
- This breakthrough could lead to new treatments for 20% of all cancers.
- The drug acts as a 'molecular glue' to inhibit KRAS signaling.

For four decades, the KRAS protein mutation, a driver in numerous cancers including pancreatic, colorectal, and lung, was considered 'undruggable.' Researchers have now developed daraxonrasib, a novel drug acting as a 'molecular glue.' This drug successfully inhibits KRAS signaling, a critical pathway found in 20% of all cancers globally, impacting 3.4 million cases annually. The development marks a significant breakthrough in oncology.
Daraxonrasib's potential extends beyond pancreatic cancer, where it may improve survival times when combined with other therapies. Its mechanism of action changes the tumor's microenvironment, potentially making it susceptible to immunotherapy. This could lead to significantly longer survival for patients with aggressive, often symptomless, and treatment-resistant cancers.
This innovation opens doors for a new class of cancer treatments targeting RAS mutations. Follow-up drugs and refined versions are anticipated, with potential applications even for pediatric cancers like neuroblastoma. The successful targeting of KRAS represents a master switch with implications for millions of cancer patients worldwide.