Clinical Research And EvidenceEvidence Item

Fulzerasib plus cetuximab first line KRAS G12C NSCLC KROCUS response 69 percent

April 4, 2026Stephen V Liu, MD, Jarushka Naidoo

Stephen V Liu and Jarushka Naidoo report early KROCUS trial results for fulzerasib plus cetuximab in first line KRAS G12C NSCLC with a 69 percent response rate and relatively low discontinuation from treatment related adverse events.

Results from KROCUS study @TheLancetOncol: first-line fulzerasib (KRAS G12C inhibitor) + cetuximab (anti-EGFR mAb) in KRAS G12C NSCLC (n=47). RR 69%, median treatment duration 10.1m, only 6% required discontinuation due to TRAE.
Ph Ib/II KROCUS trial: Fulzerasib+cetuximab in 1L KRAS-G12C+ NSCLC @TheLancetOncol
ORR 69%
Early signal of a ‘targeted therapy only’ combo, less tox than expected
Stephen V Liu, MD
Jarushka Naidoo
oncologyclinical trialtargeted therapy

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