A phase II study of concomitant boost radiation plus concurrent weekly cisplatin for locally advanced unresectable head and neck carcinomas.

Background And Purpose: This phase II study evaluated the efficacy and toxicity of weekly cisplatin along with concomitant boost accelerated radiation regimen in patients with locally advanced unresectable head and neck carcinoma.

Material And Methods: A total of 94 patients (median age, 58 years) with UICC stage III (n = 19) and IV (n = 75) cancer of the oropharynx, larynx, hypopharynx and oral cavity were included. Patients received radiotherapy with a concomitant boost scheme (1.8 Gy on days 1-40 and 1.5 Gy boost on days 25-40 with a total dose of 72 Gy) and concurrent cisplatin, 40 mg/m(2) weekly, for the first 4 weeks.

Results: Most patients (95%) received both radiation and chemotherapy according to protocol. Toxicity was manageable with grade III mucositis and pharyngeal-oesophageal toxicity in 85 and 50% of patients, respectively. Haematological toxicity was mild. Four patients (4%) died due to complications. With a median follow of 41 months, median overall survival and time to progression were 27 and 25 months, respectively. The estimated overall survival at 4 years was 41%.

Conclusions: Concomitant boost accelerated radiation plus concurrent weekly cisplatin is a feasible schedule in patients with locally advanced unresectable head and neck carcinoma, with acceptable toxicity and survival data.