United Therapeutics Corporation, a biotechnology company, focuses on the development and commercialization of products to address the unmet medical needs of patients with chronic and life-threatening conditions worldwide. Its lead product is Remodulin, an injection used for the treatment of pulmonary arterial hypertension (PAH). The company also provides Tyvaso, an inhaled prostacyclin therapy; and Adcirca, a once-daily oral therapy for the treatment of PAH. In addition, it develops oral treprostinil, an orally delivered prostacyclin analog for treatment of pulmonary hypertension; Ch14.18 MAb, an antibody in Phase III clinical trials for the treatment of neuroblastoma; Beraprost 314d, which is entering Phase III clinical trails for the treatment of PAH; PLacental eXpanded cells, which are entering a Phase I trial for the treatment of PAH; and 8H9 MAb, an antibody that is under Phase I clinical trial for the treatment of metastatic brain cancer. Further, the company is involved in the pre-clinical stage of developing TransCon Treprostinil, TransCon Beraprost, and glycobiological antiviral agents for the treatment of infectious diseases, such as Hepatitis C; and engineered lungs and lung tissue, which can be transplanted into patients suffering from PAH and other lung diseases. United Therapeutics Corporation was founded in 1996 and is headquartered in Silver Spring, Maryland.