Table 3.

Grades 2–4 adverse events occurring during cetuximab and radiotherapy classified according to the Common Terminology Criteria for Adverse Events, version 4.0; no grade 5 adverse events were observed.

Adverse event	Grade 2		Grade 3		Grade 4
	N	(%)	N	(%)	N	(%)
Infusion reaction	1	(8)	0	(0)	0	(0)
Acneiform rash	5	(42)	0	(0)	0	(0)
Radiation dermatitis	5	(42)	3	(25)	0	(0)
Mucositis	3	(25)	2	(17)	0	(0)
Pneumonitis	0	(0)	1	(8)	1	(8)
Anemia	1	(8)	1	(8)	0	(0)
Thrombocytopenia	1	(8)	0	(0)	0	(0)
Neutropenia	0	(0)	1	(8)	0	(0)
Fatigue	7	(58)	1	(8)	0	(0)
Weight loss	2	(17)	0	(0)	0	(0)
Xerostomia	2	(17)	1	(8)	0	(0)
Dysphagia	3	(25)	1	(8)	0	(0)
Infection	2	(17)	3	(25)	0	(0)