Incidence of dermatitis in head and neck cancer patients treated with primary radiotherapy and cetuximab

Abstract

To retrospectively assess the incidence of radiation dermatitis in patients with locally advanced squamous cell carcinoma of the head and neck (SCCHN) who received primary radiotherapy in combination with cetuximab in a curative intent. A total of 112 consecutively treated patients who received cetuximab in combination with radiotherapy at the Departments of Radiotherapy at the Medical University in Vienna and the Hospital Hietzing (Vienna) were analyzed. Radiotherapy was administered either as conventional radiotherapy (70 Gy in 7 weeks) or using a concomitant boost protocol (72 Gy in 6 weeks). The incidence of dermatitis and mucositis within the radiation portals in 103 eligible patients was compared with a historical control group treated at the Medical University of Vienna as well as with published data. The incidence of grade 1/2, 3, and 4 dermatitis was 57%, 29%, and 1% in the radiotherapy plus cetuximab treated collective. The incidence of grade 1/2, 3, and 4 mucositis was 37%, 47%, and 4%, respectively. The incidence of grade 3 dermatitis during concurrent radiotherapy plus cetuximab was 29% in our patient collective. Only one case of grade 4 dermatitis was observed. These results do not statistically differ significantly from the incidence reported in the Bonner trial and indicate that cetuximab in combination with radiotherapy is well tolerated.