Affymax, Inc. is a biopharmaceutical company. The Company�s product OMONTYS (peginesatide) is for the treatment of anemia due to chronic kidney disease in adult patients on dialysis. OMONTYS is a synthetic, peptide-based erythropoiesis stimulating agent (ESA), designed to stimulate production of red blood cells. The Company has a collaboration to develop and commercialize peginesatide with Takeda Pharmaceutical Company Limited. In March 2012, the Food and Drug Administration (FDA) approved the Company�s product, OMONTYS.