Arena licenses ralinepag to United, moves S1PR1 agonist to center stage

United Therapeutics Corp. (NASDAQ:UTHR) licensed exclusive, worldwide rights to pulmonary arterial hypertension compound ralinepag from Arena Pharmaceuticals Inc. (NASDAQ:ARNA) in a Nov. 15 deal that highlights how far Arena’s come since it shifted its focus away from obesity three years ago.

Arena received $800 million up front

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