- Arm I: Patients receive gemcitabine hydrochloride IV over 100 minutes on days 1, 8, and 15, and bevacizumab IV over 30-90 minutes on days 1 and 15. Treatment repeats every 28 days for 6 courses. Patients then receive bevacizumab IV alone every 2 weeks for up to 2 years in the absence of disease progression or unacceptable toxicity.