A Multicenter Phase II Study of Intensified Concomitant Chemoradiotherapy for Patients With Anaplastic Thyroid Cancer

OBJECTIVES: I. Evaluate the activity of chemotherapy with hyperfractionated radiotherapy in terms of complete and overall response rate, time to progression, pattern of failure, incidence of second primary tumors, and overall survival in patients with previously untreated anaplastic thyroid cancer. OUTLINE: This is a multicenter study. Patients receive oral hydroxyurea every 12 hours on days 0-5, fluorouracil IV and paclitaxel IV continuously over days 1-5, and hyperfractionated radiotherapy twice daily on days 1-5. Patients receive filgrastim (G-CSF) subcutaneously daily on days 6-12. Treatment repeats every 2 weeks for 5 courses. Following completion of concurrent chemoradiotherapy, patients with no prior initial modified neck dissection who have residual macroscopic nodal disease or initially staged nodal disease with no evidence of residual disease undergo neck dissection. Patients with macroscopic residual disease at the primary site undergo complete excision of disease. Patients with any progressive disease or recurrence of disease undergo conventional surgical management. Patients are followed at 4-6 weeks, every 3 months for 1 year, and then annually thereafter. PROJECTED ACCRUAL: Approximately 16-46 patients will be accrued for this study.