Analysis of <i>PTEN</i> , <i>BRAF</i> , and <i>EGFR</i> Status in Determining Benefit From Cetuximab Therapy in Wild-Type <i>KRAS</i> Metastatic Colon Cancer

BRAF status, EGFR amplification, and cytoplasmic expression of PTEN were associated with outcome measures in KRAS wild-type patients treated with a cetuximab-based regimen. Subsequent studies in clinical trial cohorts will be required to confirm the clinical utility of these markers.