- Maintenance therapy: Patients receive a single dose of cyclophosphamide IV over 15-30 minutes 3 days before the first dose of bevacizumab and BLP25 liposome vaccine. Patients then receive bevacizumab IV over 30-90 minutes on day 1 and BLP25 liposome vaccine subcutaneously on days 1, 8, and 15 of courses 1 and 2 and on day 1 of every other course beginning in course 4. Treatment repeats every 21 days for up to 34 courses in the absence of disease progression or unacceptable toxicity.