AMAG Pharmaceuticals is a biopharmaceutical company that utilizes its proprietary nanoparticle technology for the development and commercialization of therapeutic iron compounds to treat anemia and novel imaging agents to aid in the diagnosis of cancer and cardiovascular disease. The company has two commercial products, Feridex I.V. and GastroMARK, both of which are imaging agents that are approved and marketed in the United States, Europe and other countries. Ferumoxytol, the company's key product candidate, is being developed for use as an intravenous iron replacement therapeutic for the treatment of iron deficiency anemia in chronic kidney disease. Combidex, the company's other product under development, is an investigational functional molecular imaging agent consisting of iron oxide nanoparticles for use in conjunction with magnetic resonance imaging (MRI) to aid in the differentiation of cancerous from normal lymph nodes. AMAG Pharmaceuticals corporate and executive offices are located in Cambridge, Mass.