Haifa, Israel – May 29, 2007 – New early data showed that an investigational device that specifically targets rapidly growing cancer cells with intermediate frequency electrical fields -- called Tumor-Treating Fields (TTFields) -- more than doubled the median overall survival rates in patients with recurrent glioblastoma multiforme (GBM), the most common and aggressive type of malignant brain tumor. These survival rates observed in the data were compared to historical data. This research, which includes the results of cell culture, animal and early phase human trials, appears in the current issue of the Proceedings of the National Academy of Sciences (PNAS).