You will receive the drug bevacizumab by vein once every 2 weeks for 6 weeks (a total of 3 doses). The infusion will at first last 90 minutes. If there are no allergic reactions, fevers, or chills after the first infusion, the infusion time for the second dose will be shortened to 60 minutes. If there is no allergic reactions or side effects during the second drug infusion, the last infusion of bevacizumab will be given over 30 minutes. If you do have some reactions to the infusion, you may receive extra preventive medications before the infusion, and the length of time may need to stay at 90 minutes.