Trial of Induction Chemotherapy With Carboplatin and Paclitaxel, Followed by Concurrent Chemotherapy/Radiation Therapy With ZD1839 (IRESSA), 5-FU, Hydroxyurea, and Twice-Daily Radiation, Followed by Adjuvant ZD1839 Monotherapy in Patients With Locally Advanced Head & Neck Cancer

"Optional Induction chemotherapy:~Carboplatin and paclitaxel combination will be administered for 2 cycles of 4 weeks duration each. Paclitaxel: 100 mg/m2 in 500 ml of dextrose 5% in water over 3hrs. Carboplatin: Start after completion of paclitaxel on Day 1 AUC 6 (creatinine clearance \[CC\] + 25). Administered in 100 ml of normal saline over 30min after completion of paclitaxel.~Resume chemotherapy C2 on D29. ZD1839: 500mg PO QD from D1 of C1 of chemoradiotherapy, uninterrupted until disease progression. Chemotherapy should be administered during all 5 weeks of radiotherapy. P.M.:Start hydroxyurea at 500 mg PO q 12hrs × 6 days. The first daily dose of hydroxyurea on Days 1 through 5 is given 2 hours prior to the first fraction of daily radiotherapy. P.M.:Start continuous infusion of 5-FU at 600 mg/m2/day × 5D. Days 1 through 5: Radiation therapy is administered twice daily at 150 cGy ZD1839 will be administered from day 1 to 14 of every chemoradiotherapy cycle."