Welcome to ASSIST® for Healthcare Providers
ASSIST, the Access Solutions and Support Team, is a United Therapeutics resource committed to help eligible patients obtain access to their prescribed therapies. ASSIST can help pulmonary arterial hypertension (PAH) patients navigate topics such as insurance coverage, available financial assistance, and in-network pharmacies.
Orenitram is a prostacyclin vasodilator indicated for treatment of pulmonary arterial hypertension (PAH) (WHO Group 1) to improve exercise capacity.
The study that established effectiveness included predominately patients with WHO functional class II-III symptoms and etiologies of idiopathic or heritable PAH (75%) or PAH associated with connective tissue disease (19%). When used as the sole vasodilator, the effect of Orenitram on exercise is about 10% of the deficit, and the effect, if any, on a background of another vasodilator is probably less than this.
IMPORTANT SAFETY INFORMATION FOR ORENITRAM
Orenitram is contraindicated in patients with severe hepatic impairment (Child Pugh Class C)
Abrupt discontinuation or sudden large reductions in dosage of Orenitram may result in worsening of PAH symptoms
Orenitram inhibits platelet aggregation and increases the risk of bleeding
The Orenitram tablet shell does not dissolve. In patients with diverticulosis, Orenitram tablets can lodge in a diverticulum
Concomitant administration of Orenitram with diuretics, antihypertensive agents, or other vasodilators increases the risk of symptomatic hypotension
Orenitram inhibits platelet aggregation; there is an increased risk of bleeding, particularly among patients receiving anticoagulants
Co-administration of Orenitram and the CYP2C8 enzyme inhibitor gemfibrozil increases exposure to treprostinil; therefore, Orenitram dosage reduction may be necessary in these patients
Pregnancy Category C. Animal reproductive studies with Orenitram have shown an adverse effect on the fetus. There are no adequate and well-controlled studies in humans
It is not known whether treprostinil is excreted in human milk or absorbed systemically after ingestion. Because many drugs are excreted in human milk, choose Orenitram or breastfeeding
Safety and effectiveness in patients under 18 years of age have not been established
There is a marked increase in the systemic exposure to treprostinil in hepatically impaired patients
In the 12-week placebo-controlled monotherapy study, adverse reactions that occurred at rates at least 5% higher on Orenitram than on placebo included headache, diarrhea, nausea, flushing, pain in jaw, pain in extremity, hypokalemia, and abdominal discomfort