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  • Title: [Accelerated hyperfractionated radiotherapy combined with simultaneous chemotherapy in locally advanced pharyngeal and oral carcinomas].
    Author: Stuschke M, Budach V, Dinges S, Jahnke K, Budach W, Heselmann I, Unger A, Stüben G, Sack H.
    Journal: Strahlenther Onkol; 1994 Dec; 170(12):689-99. PubMed ID: 7817270.
    Abstract:
    PURPOSE: To evaluate the feasibility and effectiveness of a concurrent radio-chemotherapy regimen for locally advanced carcinomas of the pharynx and floor of the mouth. PATIENTS AND METHODS: Since January 1990, 97 patients with locally advanced carcinomas of the naso-, oro-, hypopharynx and the oral cavity in UICC stages III and IV were treated according to an accelerated hyperfractionated radiotherapy schedule with concurrent chemotherapy. The primary tumor and positive lymph nodes received a total dose of 72 Gy in 6 weeks. In the first 3 weeks, large fields were irradiated 5 times per week with 2 Gy per fraction. Thereafter, treatment was accelerated, giving 2 daily fractions of 1.4 Gy with minimal intervals of 6 hours. Target volumes were reduced after 49.6 and 59.4 Gy, excluding clinically uninvolved lymph node regions of low and high risk. On day 1, 350 mg/m2 5-FU and 50 mg/m2 folinic acid were given as intravenous bolus followed by continuous infusion of 350 mg/m2 5-FU and 100 mg/m2 folinic acid, days 1 to 5. 10 mg/m2 mitomycin C was given on day 5 and 36 of the treatment. Salvage surgery was offered for residual disease 5 to 6 weeks after the end of radiotherapy. PATIENT CHARACTERISTICS: 70 male, 27 female; age: 27 to 81 years; T2/T3/T4: 7/30/60; N0/N1/N2/N3: 20/18/53/6; nasopharynx/oropharynx/hypopharynx/oral cavity: 16/33/36/12. Median follow-up is 26 months. RESULTS: Overall survival and recurrence-free survival at 2 years were RESULTS: Overall survival and recurrence-free survival at 2 years were 68 +/- 5% and 74 +/- 5%. Multivariate analysis revealed a significant influence of the geometric mean neck node diameter or the N-stage on loco-regional control and survival. T-stage, tumor volume, or tumor localisation did not become significant. Acute toxicity of this schedule was acceptable but required optimised supportive care. Treatment related grade 4+ late toxicity of mucosa, soft tissue and bone were observed with a cumulative frequency of 13% at 2 years. Two patients died during a phase of severe leuko- or thrombocytopenia. CONCLUSION: This phase I to II trial shows favourable results using an intensified treatment radio-chemotherapy protocol. A phase III study is now planned, comparing this regime with an accelerated hyperfractionated radio-therapy alone to an increased total dose of 77.6 Gy.
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