
UB399
TargetsPan RAS
IndicationsSolid tumour
ClinicalCN - Pre-IND
TherapeuticsOncology
ModalitiesSmall Molecule
Exclusive Summary
- Potential Best-in-Class Profile: Comprehensive preclinical data demonstrate superiority over the late-stage clinical frontrunner (RMC-6236) in terms of efficacy, safety, and pharmacokinetics.
- Broad-Spectrum Activity: As a pan-RAS inhibitor, it effectively targets a wide range of major RAS mutations beyond KRAS G12C (e.g., G12D, G12V), addressing a significantly larger market than first-generation KRAS inhibitors.
- Overcoming Resistance: In vitro studies show potent activity against cell lines resistant to established KRAS G12C inhibitors (e.g., Sotorasib), addressing a critical unmet clinical need.
- Differentiated Safety Advantages: Preclinical toxicology indicates a wider therapeutic window, a better cardiac safety profile (hERG), and an absence of specific toxicities seen in competitors, suggesting a lower safety risk.
- Clean IP and Partnership Value: Secured by a composition of matter patent with global coverage and a clean internal FTO assessment, providing a clear commercial path and legal security for out-licensing partnerships.
Asset Materials

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