United Therapeutics Strikes $525 Million Deal to Eliminate Ralinepag Royalties

By Public Technologies
  • United Therapeutics entered a $525 million upfront agreement with Pfizer subsidiary Arena Pharmaceuticals to eliminate all ralinepag royalty obligations.
  • The amendment removes a low double-digit royalty on net sales of all ralinepag formulations.
  • A $250 million milestone remains payable upon the first US marketing approval of inhaled ralinepag for pulmonary arterial hypertension.
  • A $150 million milestone remains payable upon first oral ralinepag marketing approval for any indication in Japan or specified European markets.
  • Oral ralinepag’s application for pulmonary arterial hypertension remains under FDA review, with a June 24, 2027, user fee action date.


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