The investigators will examine whether 2-cycles of DFP chemotherapy before definitive concurrent chemoradiation therapy (CCRT) can improve progression-free survival in locally advanced (Stage III \& IVM0) hypopharyngeal and base of tongue carcinoma compared to definitive CCRT alone.
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To determine whether addition of neoadjuvant chemotherapy before definite CCRT increase progression-free survival(PFS) compared with CCRT only
Timeframe: 18 months after the enrollment of the last patients