Overview Preference Study With Elderly Patients Recurrent Ovarian Cancer Status: Completed Trial end date: 2012-04-01 Target enrollment: Participant gender: Summary Comparison of the patient compliance treosulfan oral vs. intravenous (defined as end of therapy for the patient) Phase: Phase 3 Details Lead Sponsor: North Eastern German Society of Gynaecological OncologyNorth Eastern Germany Society of Gynaecologic OncologyTreatments: BusulfanTreosulfan