United Therapeutics Corporation (Nasdaq: UTHR) today announced its financial results for the quarter ended September 30, 2019.

"We are pleased to see continued growth during the quarter in the total number of U.S. patients treated with our prostacyclin product franchise, consisting of Remodulin, Tyvaso, and Orenitram," said Michael Benkowitz, President and Chief Operating Officer of United Therapeutics. "As we execute toward our commercial goals, we are also continuing to execute toward our clinical goals, which include the recent label update to indicate that Orenitram delays disease progression and continued progress toward near-term phase III clinical trial readouts for DISTINCT, the study of dinutuximab for small cell lung cancer, and INCREASE, the study of pulmonary hypertension associated with interstitial lung disease."

Revenues for the three months ended September 30, 2019 decreased by $11.2 million as compared to the same period in 2018, driven entirely by a decrease in Adcirca revenues following the onset of generic competition in 2018. Revenues for our other four commercial products grew by $33.1 million in the aggregate for the three months ended September 30, 2019. Additional details regarding each product are discussed below.

Remodulin net product sales increased by $14.7 million for the three months ended September 30, 2019, as compared to the same period in 2018. $32.7 million of the increase was due to an increase in total quantities sold, primarily to our international distributors, partially offset by a decrease of $13.9 million due to price reductions, primarily to our international distributors, and higher gross-to-net revenue deductions of $4.1 million. During the three months ended September 30, 2019, there was an increase in the number of U.S. patients being treated with Remodulin, as compared to the same period in 2018.

Tyvaso net product sales for the three months ended September 30, 2019 increased by $3.0 million, as compared to the same period in 2018, primarily due to a price increase implemented in January 2019.

Orenitram net product sales for the three months ended September 30, 2019 increased by $8.2 million as compared to the same period in 2018. This increase was primarily due to an increase in the number of patients being treated with Orenitram and a price increase implemented in January 2019, partially offset by higher gross-to-net revenue deductions.

Unituxin net product sales for the three months ended September 30, 2019 increased by $7.2 million as compared to the same period in 2018. This increase was due to an increase in the number of vials sold and a price increase implemented in April 2019.

Adcirca net product sales for the three months ended September 30, 2019 decreased by $44.3 million as compared to the same period in 2018. This decrease was primarily due to a decrease in bottles sold following the onset of generic competition for Adcirca beginning in August 2018.

Cost of product sales, excluding share-based compensation. The decrease in cost of product sales of $17.2 million for the three months ended September 30, 2019, as compared to the same period in 2018, was primarily attributable to a $19.0 million decrease in royalty expense for Adcirca because fewer bottles were sold due to the launch of generic versions of Adcirca beginning in August 2018.

Research and development expense, excluding share-based compensation. Research and development expense decreased by $9.8 million for the three months ended September 30, 2019, as compared to the same period in 2018. Research and development expense for the treatment of cardiopulmonary diseases decreased by $21.9 million for the three months ended September 30, 2019, as compared to the same period in 2018, due to: (1) a one-time $10.0 million payment under a research agreement with MannKind; and (2) an up-front payment of $10.0 million under our license agreement with Samumed, both of which occurred during the three months ended September 30, 2018. The decrease in cardiopulmonary research and development expense was partially offset by an $11.2 million increase in research and development expense for our organ manufacturing projects due to increased preclinical and clinical work on technologies designed to increase the supply of transplantable organs and tissues.

The decrease in share-based compensation expense of $27.5 million for the three months ended September 30, 2019, as compared to the same period in 2018, was primarily due to a $30.8 million decrease in STAP expense driven by a 2 percent increase in our stock price for the three months ended September 30, 2019, as compared to a 13 percent increase in our stock price for the same period in 2018; partially offset by: (1) a $1.8 million increase in stock option expense due to additional awards granted and outstanding in 2019; and (2) a $1.4 million increase in restricted stock unit expense due to additional awards granted and outstanding in 2019.

Other Expense, Net

The increase in other expense, net of $16.0 million for the three months ended September 30, 2019, as compared to the same period in 2018, was primarily due to the recognition of a net unrealized loss in publicly-traded equity securities. During the three months ended September 30, 2019, we recognized $13.0 million of net unrealized losses on these securities.

Impairment of Investment in a Privately-Held Company

During the quarter ended September 30, 2018, one of the privately-held companies in which we invested experienced an event triggering an impairment analysis to evaluate the recoverability of our investment. We determined that the fair value of our investment was lower than its carrying value, resulting in an impairment charge of $12.4 million.

Income Tax Expense

The income tax expense was $34.5 million for the three months ended September 30, 2019, as compared to $33.6 million for the same period in 2018. The income tax expense is based on an estimated effective tax rate (ETR) for the entire year. The estimated annual ETR is subject to adjustment in subsequent quarterly periods if components used to calculate the estimated annual ETR are updated or revised. Our actual ETR as of September 30, 2019 and September 30, 2018 was 33 percent and 21 percent, respectively. We recognized a loss before income taxes, and a corresponding income tax benefit, for the nine months ended September 30, 2019, as a result of the one-time $800.0 million payment to Arena Pharmaceuticals, Inc. in January 2019. As a result of this loss, our anticipated tax credits and foreign sales deduction, partially offset by non-deductible compensation expense, increased our tax benefit and resulting ETR for the nine months ended September 30, 2019, compared to the same period in 2018.

About United Therapeutics

United Therapeutics Corporation focuses on the strength of a balanced, value-creating biotechnology model. We are confident in our future thanks to our fundamental attributes, namely our obsession with quality and innovation, the power of our brands, our entrepreneurial culture and our bioinformatics leadership. We also believe that our determination to be responsible citizens — having a positive impact on patients, the environment and society — will sustain our success in the long term.

Through our wholly-owned subsidiary, Lung Biotechnology PBC, we are focused on addressing the acute national shortage of transplantable lungs and other organs with a variety of technologies that either delay the need for such organs or expand the supply. Lung Biotechnology is the first public benefit corporation subsidiary of a public biotechnology or pharmaceutical company.