“…A meta‐analysis of patients receiving erlotinib ( n = 2,717) and gefitinib ( n = 3,002) found an overall incidence of pruritus of 21% for each agent and the incidence for high‐grade pruritus to be 2.3% and 1%, respectively . A meta‐analysis of risk and incidence of nail toxicities associated with erlotinib and other EGFR inhibitors found that, among patients ( n = 488) receiving erlotinib for the treatment of NSCLC, endometrial cancer, or hepatocellular carcinoma, 16.3% (95% confidence interval [CI], 12.4–21.1) had nail toxicity of any grade, and 1.8% (95% CI, 0.8–3.8) had high‐grade nail toxicity .…”