Purpose

This randomized phase III trial studies carboplatin, paclitaxel and gemcitabine hydrochloride when given together with or without bevacizumab after surgery to see how well it works in treating patients with ovarian, epithelial, primary peritoneal, or fallopian tube cancer that has come back. Drugs used in chemotherapy, such as carboplatin, paclitaxel and gemcitabine hydrochloride work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Immunotherapy with monoclonal antibodies, such as bevacizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. It is not yet known whether combination chemotherapy is more effective when given with or without bevacizumab after surgery in treating patients with ovarian, epithelial, primary peritoneal, or fallopian tube cancer.