Allos Therapeutics, Inc., a biopharmaceutical company, focuses on developing and commercializing anti-cancer therapeutics. It is developing FOLOTYN (pralatrexate injection), a folate analogue metabolic inhibitor, for the treatment of patients with relapsed or refractory peripheral T-cell lymphoma. The company is also developing FOLOTYN as a single agent and in combination therapy regimens in various hematologic malignancies and solid tumor indications, including stage IV breast cancer and recurrent/metastatic head and neck cancer. It sells FOLOTYN to pharmaceutical wholesale distributors who then resell it to patients respective health care providers. The company was formerly known as HemoTech Sciences, Inc. and changed its name to Allos Therapeutics, Inc. in October 1994. Allos Therapeutics, Inc. was founded in 1992 and is headquartered in Westminster, Colorado.