Aeterna Zentaris is a Canada-based specialty biopharmaceutical company engaged in developing treatments in oncology, endocrinology and women's health. The Company has three wholly owned direct and indirect subsidiaries: AEZS GmbH, based in Frankfurt, Germany, Zentaris IVF GmbH, a direct wholly owned subsidiary of AEZS Germany based in Frankfurt, Germany, and Aeterna Zentaris, Inc. Its drug development efforts are focused on two compounds, zoptarelin doxorubicin and Macrilen, which are in clinical development, and on two oncology compounds (an Erk inhibitor and Luteinizing Hormone-Releasing Hormone-disorazol Z product candidates), which are in pre-clinical development. Zoptarelin doxorubicin represents a hybrid molecule composed of a synthetic peptide carrier and a chemotherapy agent, doxorubicin. Macrilen (macimorelin acetate) is an orally available peptidomimetic ghrelin receptor agonist that stimulates the secretion of growth hormone by binding to the ghrelin receptor.