Long-term results after chemoradiotherapy for locally confined squamous-cell head and neck cancer.

The long-term results after simultaneous chemoradiotherapy in 54 patients with previously untreated or minimally treated, locally confined (M0) squamous-cell carcinoma of the head and neck are presented. Multiple concurrent courses of radiation therapy and chemotherapy with cisplatin and a four-day 5-fluorouracil infusion were given. Twenty-eight patients underwent definitive surgery and 26 were treated without surgical resection. Treatment-associated toxicity was significant, including mucositis, myelosuppression, and a mean 12% loss of initial body weight. Of the 54 patients, 51 were ultimately rendered disease free by this combined modality protocol. With a follow-up ranging from 42-68 months, the projected Kaplan-Meier relapse-free survival for the entire patient cohort is 70%, with all relapses occurring within 17 months of patient entry. The projected Kaplan-Meier relapse-free survival for patients with Stage IV disease is 62%. The durability of these remissions suggests that there is a significant likelihood of cure in all patients with locally confined disease, and justifies comparative trials with standard treatment.