This result is not consistent with what has been observed in patients with other solid tumors (i.e., colorectal adenocarcinoma), in whom skin rash severity is associated with improved efficacy of anti‐EGFR agents.31 In the multivariable analysis of CR (81% for the whole population), no association with skin rash severity was observed either. Here, EGFR is linked to colorectal adenocarcinoma.