Hoover (image) University of Illinois at Urbana-Champaign Caption After promising trials in mice, the researchers tested their compound, called S-PAC-1, on dogs. The drug arrested tumor growth in three of six dogs with lymphoma, and induced partial remission of tumors in a fourth, with minimal side effects. This dog, a Walker Tree Hound named Hoover, is a healthy research dog used to help determine the best dosing strategy for S-PAC-1. (Veterinary clinical medicine professor Tim Fan adopted Hoover at the completion of the study.) Credit Photo by L. Brian Stauffer, U. of I. News Bureau. Usage Restrictions Photo may be used only with stories about the research described in the news release. Please credit: Photo by L. Brian Stauffer, U. of I. News Bureau. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.