OnCo
pairingsPairing

KRAS G12C inhibitor + anti-EGFR antibody (colorectal)

In colorectal cancer, a KRAS blocker alone barely works because the cell turns EGFR up; adding an EGFR antibody stops that.

Sotorasib + panitumumab (CodeBreaK 300) and adagrasib + cetuximab (KRYSTAL-1) approved; monotherapy ORR ~10% vs ~30-45% in combination.

Rationale
Colorectal epithelium has strong EGFR-driven adaptive feedback that reactivates MAPK within hours of KRAS inhibition.
Evidence
Phase 3 (CodeBreaK 300) PFS benefit.

Connected

8top