Patients were randomly assigned to receive either 60 Gy of radiation therapy delivered at 2 Gy per fraction , 5 days a week , over a 6-week period ( standard radiation therapy ) ; induction chemotherapy consisting of cisplatin ( 100 mg/m2 ) on days 1 and 29 and 5 mg/m2 vinblastine per week for 5 consecutive weeks beginning on day 1 with cisplatin , followed by standard radiation therapy starting on day 50 ; or 69.6 Gy delivered at 1.2 Gy per fraction twice daily ( hyperfractionated radiation therapy ) .
