Multimodality treatment including postoperative radiation and concurrent chemotherapy with weekly docetaxel is feasible and effective in patients with oral and oropharyngeal cancer

Abstract

Background: To examine the feasibility and efficacy of weekly docetaxel with concurrent radiation as postoperative treatment in a multimodality approach to oral and oropharyngeal cancer.

Patients and methods: 94 patients (Table 1) with primary resectable squamous cell carcinoma of the oral cavity and oropharynx (UICC stage I 14%, II 15%, III 18%, IV 53%; Table 2) were treated with a multimodality therapy program consisting of neoadjuvant intra-arterial high-dose chemotherapy (cisplatin 150 mg/m(2) with parallel systemic sodium thiosulfate 9 g/m(2) for neutralization), followed by surgery of the primary and neck, and postoperative concurrent radiation and chemotherapy with weekly docetaxel (20-30 mg/m(2); Table 3). Chronic toxicities were followed over a period of 5 years.

Results: At a median follow-up of 4 years, the 5-year survival rate for all 94 patients was 80%, and disease-free survival was 73% (Figures 1 and 2). Among patients with advanced disease (stage III and IV), survival was 83 and 59%, respectively (Figure 4). Grade 3 and 4 mucositis was the main acute toxicity necessitating supportive care. Long-term toxicity appears to be moderate (Table 4). The maximum tolerated dose of weekly docetaxel was 25 mg/m(2).

Conclusions: Concurrent radiation and chemotherapy with weekly docetaxel is a feasible postoperative treatment in a multimodality approach to oral and oropharyngeal cancer, resulting in high overall and disease-free survival. This approach warrants further evaluation in prospective randomized trials.