Arena Pharmaceuticals is focused on developing novel, small molecule drugs with optimized receptor pharmacology and pharmacokinetics designed to deliver broad clinical utility across several therapeutic areas. The most advanced investigational clinical programs are ralinepag (APD811), which will be commencing a Phase 3 program for pulmonary arterial hypertension (PAH), and etrasimod (APD334), which will be commencing a Phase 3 program for ulcerative colitis (UC) and which has potential utility for a broad range of immune and inflammatory conditions. Arena is also evaluating APD371 in Phase 2 for the treatment of pain associated with Crohn’s disease. In addition, Arena has collaborations with the following pharmaceutical companies: Everest Medicines Limited (ralinepag and etrasimod in Greater China and select Asian countries), Axovant Sciences GmbH (nelotanserin – Phase 2), Boehringer Ingelheim International GmbH (undisclosed target – preclinical), and Eisai Co., Ltd. and Eisai Inc. (BELVIQ® – marketed product).

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