Journal
JOURNAL OF CLINICAL ONCOLOGY
Volume 25, Issue 30, Pages 4800-4805Publisher
AMER SOC CLINICAL ONCOLOGY
DOI: 10.1200/JCO.2006.07.9194
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Purpose Recurrent squamous cell carcinoma of the head and neck (SCCHN) or new second primary tumor (SPT) in a previous radiation field, if not curable by surgery or radiation, is almost always fatal. Chemotherapy alone yields a median survival time (MST) of no more than 10 months and 1-year overall survival (OS) of 35% at best. Concurrent reirradiation and chemotherapy is an alternative strategy. Patients and Methods Eligibility for Radiation Therapy Oncology Group (RTOG) protocol 9911 stipulated recurrent SCCHN or SPT in a previous radiation field. Patients received twice-daily radiation (1.5 Gy per fraction bid X 5 days every 2 weeks x 4), plus cisplatin 15 mg/m(2) intravenously (IV) daily x 5 and paclitaxel 20 mg/m(2) IV daily x 5 every 2 weeks x4. Granulocyte colony-stimulated factor was administered days 6 through 13 of each 2-week cycle. Results One hundred five patients were enrolled from March 2000 through June 2003; 23% had SPT. Oropharynx (40%) and oral cavity (27%) were the predominant primary sites. Median prior radiation dose was 65.4 Gy. Seventy-four percent of patients completed chemotherapy. Grade 4 or worse acute toxicity occurred in 28%, grade 4 or worse acute hematologic toxicity in 21%. Eight treatment-related deaths (8%) occurred: five in the acute setting, three late (including two carotid hemorrhages). MST was 12.1 months, with estimated 1-and 2-year OS rates of 50.2% and 25.9%. Conclusion Despite a high incidence of grade 5 toxicity, 1-and 2-year OS rates for split-course bid radiation therapy and concurrent cisplatin/paclitaxel exceed results generally seen with chemotherapy alone.
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