Overview A Study of ET-743 (Trabectedin) in Patients With Advanced Breast Cancer Status: Completed Trial end date: 2006-12-01 Target enrollment: Participant gender: Summary The purpose of this study is to test the safety and effectiveness of an investigational chemotherapy agent in patients with advanced breast cancer. Phase: Phase 2 Details Lead Sponsor: Johnson & Johnson Pharmaceutical Research & Development, L.L.C.Collaborator: PharmaMarTreatments: Antineoplastic Agents, AlkylatingBB 1101DexamethasoneDexamethasone 21-phosphateDexamethasone acetateMolecular Mechanisms of Pharmacological ActionTrabectedin