Table 1

EGFR antibodies single agent versus best supportive care in patients with refractory mCRC

nRR (%)PFSOS
MedianHRp ValueMedianHRp Value
ITT population
BSC23107.3 weeks0.54<0.001NA1.00NS*
Panitumumab232108.0 weeksNA
BSC2850NA0.68<0.0014.60.770.005
Cetuximab2878NA6.1
K-ras population
BSCWT21907.3 weeks0.45<0.001
PanitumumabWT2181712.3 weeks
BSCmut9507.3 weeks0.99NS
Panitumumab trial 92% of ITTpopulationPanitumumabmut7607.4 weeks
Cetuximab trial 69% of ITT populationBSCWT01.9 months0.40<0.0014.8 mos0.55<0.001
CetuximabWT12,83.7 months9.5 mos
BSCmut01.8 months0.99NS4.6 months0.98NS
Cetuximabmut1,21.8 months4.5 months
  • * Crossover design.

  • BSC, best supportive care; EGFR, epidermal growth factor receptor; ITT, intention to treat; mCRC, metastatic colorectal cancer; mut, mutated; NA, not available; NS, non-significant; OS, overall survival; PFS, progression-free survival; WT, wild type.