Phase II Trial of Doxorubicin and Bortezomib in Patients With Incurable Adenoid Cystic Carcinoma of the Head and Neck

Patients will be treated with bortezomib 1.3 mg/m2, intravenously on days 1, 4, 8 and 11, and doxorubicin 20 mg/m2, intravenously on days 1 and 8, every 21 days. Zinecard will be added at the 8th cycle and all subsequent cycles with doxorubicin. After the completion of 14 cycles, if there is no progression, bortezomib once a week at a dose of 1.6 mg/m2 on days 1,8,15, every 28 days, will be administered alone. Treatment will continue unless disease progression or intolerable toxicity emerges (see section 5 for detailed treatment plan and dose modifications).