The most common adverse events were rash (40.0% in the EGFR-TKI plus thymosin group and 38.5% in the EGFR-TKI group), diarrhea (23.1% and 25.4%, respectively), dry skin (20.0% and 20.8%, respectively) and anorexia (9.2% and 10.0%, respectively). Here, EGFR is linked to Anorexia.