NEW HAVEN, Conn., April 13 /PRNewswire-FirstCall/ -- VION PHARMACEUTICALS, INC. (Nasdaq: VION - News) announced today that data on its lead anticancer agent Cloretazine® (VNP40101M) will be presented in posters at the 100th Annual Meeting of the American Association of Cancer Research in Los Angeles, California. All three posters will be available on Vion’s website, www.vionpharm.com on the day of presentation.