Yondelis is developed by PharmaMar (pharmamar.com) in partnership with Johnson & Johnson Pharmaceutical Research & Development. PharmaMar will market Yondelis in Europe while Tibotec Therapeutics, a division of Ortho Biotech Products LP, will market the drug in the United States and Ortho Biotech, a division of Janssen-Cilag NV (janssen-cilag.com), will market the drug in the rest of the world.