Efficacy and safety of postoperative bio-chemoradiotherapy using cetuximab and docetaxel for high-risk head and neck cancer patients in Japan

Abstract

Purpose

To confirm the efficacy and safety of cetuximab and docetaxel in postoperative radiotherapy for high-risk head and neck cancer patients who cannot to be administered high-dose cisplatin.

Patients and methods

The eligibility criteria required stage III–IVB head and neck cancer patients who had undergone total resection, and for whom pathological evaluation revealed positive or close margins in the primary site and/or extracapsular nodal extension and/or two or more nodal metastases. In each case, the patients general condition prevented the use of high-dose cisplatin. Instead, they received cetuximab and docetaxel every week during a 66.6 Gy course of postoperative radiotherapy.

Results

Eleven patients were enrolled; the median follow-up period was 22 months, and the 1- and 2-year disease free survival rates were 91 and 55%, respectively. Grade 3 adverse events included oral mucositis, radiation dermatitis, reduced white blood cell and neutrophil counts, lung infection, aspiration, and hyponatremia; however, no grade 4 adverse events were observed.

Conclusion

Administration of cetuximab and docetaxel during postoperative radiotherapy for high-risk poor condition head and neck cancer patients in poor general condition was both feasible and tolerable. With the safety of this treatment confirmed, we propose a phase trail to further clarify the efficacy of cetuximab and docetaxel use for high-risk cisplatin-intolerant patients.

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