Patients were evaluated after 6 cycles of induction chemotherapy. Patients who have progressive disease either due to distant metastasis or locoregional progression will be given salvage systemic chemotherapy and will not be enrolled into concurrent chemoradiotherapy. Patients who achieve complete remission, partial remission or stable disease will be enrolled into 2nd phase of the study, concurrent chemoradiotherapy, 3-4 weeks after the last dose of induction chemotherapy.