Arena Pharmaceuticals

San Diego, CA

Arena Pharmaceuticals, Inc. is a biopharmaceutical company founded in 1997 and located in San Diego, California. The company has small molecule drugs in development for possible clinical utility in multiple therapeutic areas. The company’s most advanced investigational clinical programs are ralinepag (formerly APD811) in testing for pulmonary arterial hypertension (PAH), etrasimod (formerly APD334) in evaluation for inflammatory indications and APD371 for the treatment of pain associated with Crohn’s disease. In 2016 the company downsized and shifted its focus to developing new drugs currently being tested in clinical trials.