SAN DIEGO, April 30, 2010 /PRNewswire-FirstCall/ -- Arena Pharmaceuticals, Inc. (Nasdaq:ARNA - News) today announced it will report first quarter 2010 financial results before the NASDAQ Global Market opens on Friday, May 7, 2010. That same morning, Jack Lief, Arena’s President and Chief Executive Officer, and Robert E. Hoffman, Arena’s Vice President, Finance and Chief Financial Officer, will host a conference call at 8:30 a.m. Eastern Time (5:30 a.m. Pacific Time) to discuss the financial results for the first quarter 2010 and to provide a business and financial update.