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  • Title: Treatment results and prognostic factors for advanced squamous cell carcinoma of the larynx treated with concurrent chemoradiotherapy.
    Author: Taguchi T, Nishimura G, Takahashi M, Komatsu M, Sano D, Sakuma N, Arai Y, Yamashita Y, Shiono O, Hirama M, Sakuma Y, Ishitoya J, Hata M, Ogino I, Oridate N.
    Journal: Cancer Chemother Pharmacol; 2013 Oct; 72(4):837-43. PubMed ID: 23959463.
    Abstract:
    OBJECTIVE: To review our experience with concurrent chemoradiotherapy (CCRT) for patients with advanced resectable squamous cell carcinoma (SCC) of the larynx and to evaluate the factors affecting survival and larynx preservation. STUDY DESIGN: Retrospective study. SUBJECTS AND METHODS: The records of 102 patients with stage III or IV resectable SCC of the larynx treated with CCRT between February 1994 and March 2009 were reviewed. Of 102 patients, 59 were treated with high-dose regimens, including cisplatin, 5-fluorouracil (5-FU), methotrexate, and leucovorin or docetaxel, cisplatin, and 5-FU, and 43 were treated with low-dose regimens, including carboplatin and uracil-tegafur or S-1. Radiotherapy was delivered 5 days a week using a single daily fraction of 1.8–2.0 Gray (Gy), to a total dose of 66.0–70.2 Gy. Overall survival (OS), disease-specific survival (DSS), and DSS with larynx preservation were estimated using Kaplan–Meier methods. The log-rank test and Cox proportional hazards regression were used to identify significant prognostic factors for DSS and DSS with larynx preservation. RESULTS: The 5-year OS and DSS for all patients treated with CCRT were 63.9 and 70.7 %, respectively. The 5-year DSS with larynx preservation was 54.1 %. On multivariate analysis, N stage, synchronous multiple primary cancers, and the contents of chemotherapy were significant predictors of OS for patients undergoing CCRT; T stage, N stage, and the contents of chemotherapy were significant prognostic factors for larynx preservation. CONCLUSION: The treatment method including the indication for CCRT may be determined by the contents of the chemotherapy and the T and N stages of laryngeal SCC. It is important to diagnose multiple synchronous primary cancers before CCRT.
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