Patients receive doxorubicin hydrochloride IV, cyclophophamide IV, and bevacizumab IV over 30-90 minutes on day 1 and pegfilgrastim subcutaneously (SC) on day 2. Treatment repeats every 2 weeks for 4 courses in the absence of disease progression or unacceptable toxicity. Patients then receive paclitaxel albumin-stabilized nanoparticle formulation IV over 30 minutes on day 1 and pegfilgrastim SC on day 2. Treatment with paclitaxel albumin-stabilized nanoparticle formulation and pegfilgrastim repeats every 2 weeks for 4 courses in the absence of disease progression or unacceptable toxicity. Patients then receive maintenance therapy comprising bevacizumab IV over 30-90 minutes on day 1. Treatment with maintenance therapy repeats every 3 weeks for 12 courses in the absence of disease progression or unacceptable toxicity.