United Therapeutics Corporation, a biotechnology company, engages in the development and commercialization of products to address the unmet medical needs of patients with chronic and life-threatening diseases in the United States and internationally. Its commercial therapies include Remodulin to treat patients with pulmonary arterial hypertension (PAH) to diminish symptoms associated with exercise; Tyvaso, an inhaled formulation of prostacyclin analogue treprostinil to enhance the exercise ability in PAH patients and pulmonary hypertension associated with interstitial lung disease (PH-ILD); Orenitram, a tablet dosage form of treprostinil to enhance the exercise capacity in PAH patients; Unituxin, a monoclonal antibody for treating high-risk neuroblastoma; and Adcirca, an oral PDE-5 inhibitor to enhance the exercise ability in PAH patients. The company also engages in developing Tyvaso DPI, a dry powder inhalation form of Tyvaso; Remunity Pump, a small, lightweight, durable pump and separate controller; RemoPro and Ralinepag for the treatment of PAH; Aurora-GT, a gene therapy product to rebuild the blood vessels in the lungs; and Tyvaso PERFECT and TETON studies, which are the studies of Tyvaso in patients with World Health Organization (WHO) Group 3 pulmonary hypertension associated with chronic obstructive pulmonary disease (PH-COPD). It has licensing and collaboration agreements with DEKA Research & Development Corp. to develop a semi-disposable system for the subcutaneous delivery of treprostinil; MannKind Corporation to develop and license treprostinil inhalation powder and the Dreamboat device; and Arena Pharmaceuticals, Inc. to develop Ralinepag. The company was incorporated in 1996 and is headquartered in Silver Spring, Maryland.

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