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Discovery of BBO-11818, a Potent and Selective Noncovalent Inhibitor of (ON) and (OFF) KRAS with Activity against Multiple Oncogenic Mutants - PubMed

5 days ago
  • #KRAS inhibitor
  • #Clinical trials
  • #Cancer therapy
  • Discovery of BBO-11818, a potent and selective noncovalent pan-KRAS inhibitor.
  • BBO-11818 targets multiple KRAS mutants in both inactive (OFF) and active (ON) states.
  • It binds in the Switch-II/Helix 3 pocket, disrupting effector binding.
  • Demonstrates high-affinity binding to mutant KRAS with selectivity over NRAS and HRAS.
  • Potently inhibits MAPK signaling and cellular viability in KRAS-driven lines.
  • Shows tumor regressions in KRAS-mutant xenograft models.
  • Enhanced efficacy in combination with anti-PD-1, anti-EGFR antibodies, and RAS:PI3Kα breaker.
  • Currently in phase I clinical trials for KRAS-mutant colorectal, pancreatic, and lung cancers (NCT06917079).
  • Addresses the need for inhibitors targeting KRASG12D and KRASG12V mutants.