Trabectedin (also known as ecteinascidin 743 or ET-743, trade name Yondelis) is an antitumor chemotherapy drug sold by Pharma Mar S.A. and Johnson and Johnson under the brand name Yondelis. It is approved for use in Europe, Russia, and South Korea for the treatment of advanced soft-tissue sarcoma. It is also undergoing clinical trials for the treatment of breast, prostate, and paediatric sarcomas. The European Commission and the U.S. Food and Drug Administration (FDA) have granted orphan drug status to trabectedin for soft-tissue sarcomas and ovarian cancer.